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G4NuclNuclDiffuseElastic Class Reference
#include <G4NuclNuclDiffuseElastic.hh>
Inheritance diagram for G4NuclNuclDiffuseElastic:
Additional Inherited Members | |
| Protected Member Functions inherited from G4HadronicInteraction | |
| void | SetModelName (const G4String &nam) |
| G4bool | IsBlocked () const |
| void | Block () |
| Protected Attributes inherited from G4HadronElastic | |
| G4double | pLocalTmax |
| G4int | secID |
| Protected Attributes inherited from G4HadronicInteraction | |
| G4HadFinalState | theParticleChange |
| G4int | verboseLevel |
| G4double | theMinEnergy |
| G4double | theMaxEnergy |
| G4bool | isBlocked |
Detailed Description
Definition at line 61 of file G4NuclNuclDiffuseElastic.hh.
Constructor & Destructor Documentation
◆ G4NuclNuclDiffuseElastic()
| G4NuclNuclDiffuseElastic::G4NuclNuclDiffuseElastic | ( | ) |
Definition at line 68 of file G4NuclNuclDiffuseElastic.cc.
70{
71 SetMinEnergy( 50*MeV );
73 verboseLevel = 0;
74 lowEnergyRecoilLimit = 100.*keV;
75 lowEnergyLimitQ = 0.0*GeV;
76 lowEnergyLimitHE = 0.0*GeV;
77 lowestEnergyLimit= 0.0*keV;
78 plabLowLimit = 20.0*MeV;
79
80 theProton = G4Proton::Proton();
81 theNeutron = G4Neutron::Neutron();
82 theDeuteron = G4Deuteron::Deuteron();
83 theAlpha = G4Alpha::Alpha();
84 thePionPlus = G4PionPlus::PionPlus();
85 thePionMinus= G4PionMinus::PionMinus();
86
87 fEnergyBin = 300; // Increased from the original 200 to have no wider log-energy-bins up to 10 PeV
88 fAngleBin = 200;
89
91 fAngleTable = 0;
92
93 fParticle = 0;
94 fWaveVector = 0.;
95 fAtomicWeight = 0.;
96 fAtomicNumber = 0.;
97 fNuclearRadius = 0.;
98 fBeta = 0.;
99 fZommerfeld = 0.;
100 fAm = 0.;
101 fAddCoulomb = false;
102 // Ranges of angle table relative to current Rutherford (Coulomb grazing) angle
103
104 // Empirical parameters
105
106 fCofAlphaMax = 1.5;
107 fCofAlphaCoulomb = 0.5;
108
109 fProfileDelta = 1.;
110 fProfileAlpha = 0.5;
111
112 fCofLambda = 1.0;
113 fCofDelta = 0.04;
114 fCofAlpha = 0.095;
115
116 fNuclearRadius1 = fNuclearRadius2 = fNuclearRadiusSquare
117 = fRutherfordRatio = fCoulombPhase0 = fHalfRutThetaTg = fHalfRutThetaTg2
118 = fRutherfordTheta = fProfileLambda = fCofPhase = fCofFar
119 = fSumSigma = fEtaRatio = fReZ = 0.0;
120 fMaxL = 0;
121
122 fNuclearRadiusCof = 1.0;
123 fCoulombMuC = 0.0;
124}
G4HadronElastic(const G4String &name="hElasticLHEP")
Definition G4HadronElastic.cc:49
void SetMinEnergy(G4double anEnergy)
Definition G4HadronicInteraction.hh:89
void SetMaxEnergy(const G4double anEnergy)
Definition G4HadronicInteraction.hh:102
G4double GetMaxEnergy() const
Definition G4HadronicInteraction.hh:96
static G4HadronicParameters * Instance()
Definition G4HadronicParameters.cc:54
Definition G4PhysicsLogVector.hh:48
Referenced by BuildAngleTable(), GetCint(), GetErfInt(), GetSint(), IntegralElasticProb(), SampleThetaCMS(), and TestAngleTable().
◆ ~G4NuclNuclDiffuseElastic()
|
virtual |
Definition at line 130 of file G4NuclNuclDiffuseElastic.cc.
131{
132 if ( fEnergyVector ) {
133 delete fEnergyVector;
134 fEnergyVector = 0;
135 }
136
137 for ( std::vector<G4PhysicsTable*>::iterator it = fAngleBank.begin();
138 it != fAngleBank.end(); ++it ) {
139 if ( (*it) ) (*it)->clearAndDestroy();
140 delete *it;
141 *it = 0;
142 }
143 fAngleTable = 0;
144}
Member Function Documentation
◆ Amplitude()
Definition at line 978 of file G4NuclNuclDiffuseElastic.hh.
979{
980
982 // G4complex out = AmplitudeNear(theta);
983 // G4complex out = AmplitudeFar(theta);
984 return out;
985}
G4complex AmplitudeFar(G4double theta)
Definition G4NuclNuclDiffuseElastic.hh:964
G4complex AmplitudeNear(G4double theta)
Definition G4NuclNuclDiffuseElastic.cc:1609
Referenced by AmplitudeMod2().
◆ AmplitudeFar()
Definition at line 964 of file G4NuclNuclDiffuseElastic.hh.
965{
966 G4double kappa = std::sqrt(0.5*fProfileLambda/std::sin(theta)/CLHEP::pi);
968 out *= ProfileFar(theta);
969 out *= PhaseFar(theta);
970 return out;
971}
G4complex PhaseFar(G4double theta)
Definition G4NuclNuclDiffuseElastic.hh:945
G4double ProfileFar(G4double theta)
Definition G4NuclNuclDiffuseElastic.hh:892
Referenced by Amplitude().
◆ AmplitudeGG()
Definition at line 1692 of file G4NuclNuclDiffuseElastic.cc.
1693{
1695 G4double T12b, a, aTemp, b2, sinThetaH = std::sin(0.5*theta);
1696 G4double sinThetaH2 = sinThetaH*sinThetaH;
1699
1700 a = -fSumSigma/CLHEP::twopi/fNuclearRadiusSquare;
1701 b2 = fWaveVector*fWaveVector*fNuclearRadiusSquare*sinThetaH2;
1702
1703 aTemp = a;
1704
1706 {
1708 aTemp *= a;
1709 out += T12b;
1711 }
1712 out *= -4.*im*fWaveVector/CLHEP::pi;
1713 out += CoulombAmplitude(theta);
1714 return out;
1715}
G4GLOB_DLL std::ostream G4cout
G4complex CoulombAmplitude(G4double theta)
Definition G4NuclNuclDiffuseElastic.hh:797
Referenced by AmplitudeGGMod2().
◆ AmplitudeGGMod2()
Definition at line 1069 of file G4NuclNuclDiffuseElastic.hh.
1070{
1072 G4double mod2 = out.real()*out.real() + out.imag()*out.imag();
1073 return mod2;
1074}
G4complex AmplitudeGG(G4double theta)
Definition G4NuclNuclDiffuseElastic.cc:1692
◆ AmplitudeGla()
Definition at line 1665 of file G4NuclNuclDiffuseElastic.cc.
1666{
1671
1673 {
1674 shiftC = std::exp( im*2.*CalculateCoulombPhase(n) );
1675 // b = ( fZommerfeld + std::sqrt( fZommerfeld*fZommerfeld + n*(n+1) ) )/fWaveVector;
1676 b = ( std::sqrt( G4double(n*(n+1)) ) )/fWaveVector;
1677 b2 = b*b;
1678 T12b = fSumSigma*G4Exp(-b2/fNuclearRadiusSquare)/CLHEP::pi/fNuclearRadiusSquare;
1679 shiftN = std::exp( -0.5*(1.-im*fEtaRatio)*T12b ) - 1.;
1681 }
1682 out /= 2.*im*fWaveVector;
1683 out += CoulombAmplitude(theta);
1684 return out;
1685}
G4double CalculateCoulombPhase(G4int n)
Definition G4NuclNuclDiffuseElastic.hh:844
G4double GetLegendrePol(G4int n, G4double x)
Definition G4NuclNuclDiffuseElastic.cc:1441
Referenced by AmplitudeGlaMod2().
◆ AmplitudeGlaMod2()
Definition at line 1058 of file G4NuclNuclDiffuseElastic.hh.
1059{
1061 G4double mod2 = out.real()*out.real() + out.imag()*out.imag();
1062 return mod2;
1063}
G4complex AmplitudeGla(G4double theta)
Definition G4NuclNuclDiffuseElastic.cc:1665
◆ AmplitudeMod2()
Definition at line 991 of file G4NuclNuclDiffuseElastic.hh.
992{
994 G4double mod2 = out.real()*out.real() + out.imag()*out.imag();
995 return mod2;
996}
G4complex Amplitude(G4double theta)
Definition G4NuclNuclDiffuseElastic.hh:978
◆ AmplitudeNear()
Definition at line 1609 of file G4NuclNuclDiffuseElastic.cc.
1610{
1611 G4double kappa = std::sqrt(0.5*fProfileLambda/std::sin(theta)/CLHEP::pi);
1613
1614 out *= PhaseNear(theta);
1615
1616 if( theta <= fRutherfordTheta )
1617 {
1619 // out *= GammaMore(theta) + ProfileNear(theta);
1620 out += CoulombAmplitude(theta);
1621 }
1622 else
1623 {
1625 // out *= GammaLess(theta) + ProfileNear(theta);
1626 }
1627 return out;
1628}
G4double ProfileNear(G4double theta)
Definition G4NuclNuclDiffuseElastic.hh:871
G4complex PhaseNear(G4double theta)
Definition G4NuclNuclDiffuseElastic.hh:927
G4complex GammaMore(G4double theta)
Definition G4NuclNuclDiffuseElastic.cc:1582
G4complex GammaLess(G4double theta)
Definition G4NuclNuclDiffuseElastic.cc:1554
Referenced by Amplitude().
◆ AmplitudeSim()
Definition at line 1634 of file G4NuclNuclDiffuseElastic.cc.
1635{
1636 G4double sinThetaR = 2.*fHalfRutThetaTg/(1. + fHalfRutThetaTg2);
1637 G4double dTheta = 0.5*(theta - fRutherfordTheta);
1638 G4double sindTheta = std::sin(dTheta);
1639 G4double persqrt2 = std::sqrt(0.5);
1640
1642 order *= std::sqrt(0.5*fProfileLambda/sinThetaR)*2.*sindTheta;
1643 // order *= std::sqrt(0.5*fProfileLambda/sinThetaR)*2.*dTheta;
1644
1645 G4complex out;
1646
1647 if ( theta <= fRutherfordTheta )
1648 {
1650 }
1651 else
1652 {
1654 }
1655
1656 out *= CoulombAmplitude(theta);
1657
1658 return out;
1659}
G4complex GetErfcInt(G4complex z)
Definition G4NuclNuclDiffuseElastic.hh:672
Referenced by AmplitudeSimMod2().
◆ AmplitudeSimMod2()
Definition at line 1046 of file G4NuclNuclDiffuseElastic.hh.
1047{
1049 G4double mod2 = out.real()*out.real() + out.imag()*out.imag();
1050 return mod2;
1051}
G4complex AmplitudeSim(G4double theta)
Definition G4NuclNuclDiffuseElastic.cc:1634
◆ BesselJone()
Definition at line 2086 of file G4NuclNuclDiffuseElastic.cc.
2087{
2088 G4double modvalue, value2, fact1, fact2, arg, shift, bessel;
2089
2090 modvalue = std::fabs(value);
2091
2092 if ( modvalue < 8.0 )
2093 {
2094 value2 = value*value;
2095
2096 fact1 = value*(72362614232.0 + value2*(-7895059235.0
2097 + value2*( 242396853.1
2098 + value2*(-2972611.439
2099 + value2*( 15704.48260
2100 + value2*(-30.16036606 ) ) ) ) ) );
2101
2102 fact2 = 144725228442.0 + value2*(2300535178.0
2103 + value2*(18583304.74
2104 + value2*(99447.43394
2105 + value2*(376.9991397
2106 + value2*1.0 ) ) ) );
2107 bessel = fact1/fact2;
2108 }
2109 else
2110 {
2111 arg = 8.0/modvalue;
2112
2113 value2 = arg*arg;
2114
2115 shift = modvalue - 2.356194491;
2116
2117 fact1 = 1.0 + value2*( 0.183105e-2
2118 + value2*(-0.3516396496e-4
2119 + value2*(0.2457520174e-5
2120 + value2*(-0.240337019e-6 ) ) ) );
2121
2122 fact2 = 0.04687499995 + value2*(-0.2002690873e-3
2123 + value2*( 0.8449199096e-5
2124 + value2*(-0.88228987e-6
2125 + value2*0.105787412e-6 ) ) );
2126
2127 bessel = std::sqrt( 0.636619772/modvalue)*(std::cos(shift)*fact1 - arg*std::sin(shift)*fact2);
2128
2129 if (value < 0.0) bessel = -bessel;
2130 }
2131 return bessel;
2132}
Referenced by BesselOneByArg(), GetDiffElasticProb(), GetDiffElasticSumProb(), and GetDiffElasticSumProbA().
◆ BesselJzero()
Definition at line 2034 of file G4NuclNuclDiffuseElastic.cc.
2035{
2036 G4double modvalue, value2, fact1, fact2, arg, shift, bessel;
2037
2038 modvalue = std::fabs(value);
2039
2040 if ( value < 8.0 && value > -8.0 )
2041 {
2042 value2 = value*value;
2043
2044 fact1 = 57568490574.0 + value2*(-13362590354.0
2045 + value2*( 651619640.7
2046 + value2*(-11214424.18
2047 + value2*( 77392.33017
2048 + value2*(-184.9052456 ) ) ) ) );
2049
2050 fact2 = 57568490411.0 + value2*( 1029532985.0
2051 + value2*( 9494680.718
2052 + value2*(59272.64853
2053 + value2*(267.8532712
2054 + value2*1.0 ) ) ) );
2055
2056 bessel = fact1/fact2;
2057 }
2058 else
2059 {
2060 arg = 8.0/modvalue;
2061
2062 value2 = arg*arg;
2063
2064 shift = modvalue-0.785398164;
2065
2066 fact1 = 1.0 + value2*(-0.1098628627e-2
2067 + value2*(0.2734510407e-4
2068 + value2*(-0.2073370639e-5
2069 + value2*0.2093887211e-6 ) ) );
2070
2071 fact2 = -0.1562499995e-1 + value2*(0.1430488765e-3
2072 + value2*(-0.6911147651e-5
2073 + value2*(0.7621095161e-6
2074 - value2*0.934945152e-7 ) ) );
2075
2076 bessel = std::sqrt(0.636619772/modvalue)*(std::cos(shift)*fact1 - arg*std::sin(shift)*fact2 );
2077 }
2078 return bessel;
2079}
Referenced by GetDiffElasticProb(), GetDiffElasticSumProb(), and GetDiffElasticSumProbA().
◆ BesselOneByArg()
Definition at line 419 of file G4NuclNuclDiffuseElastic.hh.
420{
421 G4double x2, result;
422
423 if( std::fabs(x) < 0.01 )
424 {
425 x *= 0.5;
426 x2 = x*x;
427 result = 2. - x2 + x2*x2/6.;
428 }
429 else
430 {
431 result = BesselJone(x)/x;
432 }
433 return result;
434}
G4double BesselJone(G4double z)
Definition G4NuclNuclDiffuseElastic.cc:2086
Referenced by GetDiffElasticProb(), GetDiffElasticSumProb(), and GetDiffElasticSumProbA().
◆ BuildAngleTable()
| void G4NuclNuclDiffuseElastic::BuildAngleTable | ( | ) |
Definition at line 1008 of file G4NuclNuclDiffuseElastic.cc.
1009{
1010 G4int i, j;
1013
1014 // G4cout<<"particle z = "<<z<<"; particle m1 = "<<m1/GeV<<" GeV"<<G4endl;
1015
1016 G4Integrator<G4NuclNuclDiffuseElastic,G4double(G4NuclNuclDiffuseElastic::*)(G4double)> integral;
1017
1019
1020 for( i = 0; i < fEnergyBin; i++)
1021 {
1022 kinE = fEnergyVector->GetLowEdgeEnergy(i);
1023
1024 // G4cout<<G4endl;
1025 // G4cout<<"kinE = "<<kinE/MeV<<" MeV"<<G4endl;
1026
1027 partMom = std::sqrt( kinE*(kinE + 2*m1) );
1028
1029 InitDynParameters(fParticle, partMom);
1030
1031 alphaMax = fRutherfordTheta*fCofAlphaMax;
1032
1033 if(alphaMax > pi) alphaMax = pi;
1034
1035 // VI: Coverity complain
1036 //alphaMax = pi2;
1037
1038 alphaCoulomb = fRutherfordTheta*fCofAlphaCoulomb;
1039
1040 // G4cout<<"alphaCoulomb = "<<alphaCoulomb/degree<<"; alphaMax = "<<alphaMax/degree<<G4endl;
1041
1043
1044 // G4PhysicsLogVector* angleBins = new G4PhysicsLogVector( 0.001*alphaMax, alphaMax, fAngleBin );
1045
1046 G4double delth = (alphaMax-alphaCoulomb)/fAngleBin;
1047
1048 sum = 0.;
1049
1050 // fAddCoulomb = false;
1051 fAddCoulomb = true;
1052
1053 // for(j = 1; j < fAngleBin; j++)
1054 for(j = fAngleBin-1; j >= 1; j--)
1055 {
1056 // alpha1 = angleBins->GetLowEdgeEnergy(j-1);
1057 // alpha2 = angleBins->GetLowEdgeEnergy(j);
1058
1059 // alpha1 = alphaMax*(j-1)/fAngleBin;
1060 // alpha2 = alphaMax*( j )/fAngleBin;
1061
1062 alpha1 = alphaCoulomb + delth*(j-1);
1063 // if(alpha1 < kRlim2) alpha1 = kRlim2;
1064 alpha2 = alpha1 + delth;
1065
1066 delta = integral.Legendre10(this, &G4NuclNuclDiffuseElastic::GetFresnelIntegrandXsc, alpha1, alpha2);
1067 // delta = integral.Legendre96(this, &G4NuclNuclDiffuseElastic::GetIntegrandFunction, alpha1, alpha2);
1068
1069 sum += delta;
1070
1072 // G4cout<<"j-1 = "<<j-1<<"; alpha2 = "<<alpha2/degree<<"; sum = "<<sum<<G4endl;
1073 }
1074 fAngleTable->insertAt(i,angleVector);
1075
1076 // delete[] angleVector;
1077 // delete[] angleBins;
1078 }
1079 return;
1080}
Definition G4Integrator.hh:45
G4NuclNuclDiffuseElastic()
Definition G4NuclNuclDiffuseElastic.cc:68
void InitDynParameters(const G4ParticleDefinition *theParticle, G4double partMom)
Definition G4NuclNuclDiffuseElastic.cc:1768
G4double GetFresnelIntegrandXsc(G4double alpha)
Definition G4NuclNuclDiffuseElastic.hh:1035
Definition G4PhysicsFreeVector.hh:54
void PutValue(const std::size_t index, const G4double e, const G4double value)
Definition G4PhysicsFreeVector.hh:97
Definition G4PhysicsTable.hh:56
G4double GetLowEdgeEnergy(const std::size_t index) const
Referenced by Initialise(), and InitialiseOnFly().
◆ CalcMandelstamS()
|
inline |
Definition at line 1080 of file G4NuclNuclDiffuseElastic.hh.
1083{
1084 G4double Elab = std::sqrt ( mp * mp + Plab * Plab );
1085 G4double sMand = mp*mp + mt*mt + 2*Elab*mt ;
1086
1087 return sMand;
1088}
Referenced by GetHadronNucleonXscNS().
◆ CalculateAm()
Definition at line 468 of file G4NuclNuclDiffuseElastic.hh.
469{
470 G4double k = momentum/CLHEP::hbarc;
473 G4double zn2 = zn*zn;
474 fAm = ch/zn2;
475
476 return fAm;
477}
Referenced by GetCoulombElasticXsc(), GetCoulombIntegralXsc(), GetCoulombTotalXsc(), GetDiffuseElasticSumXsc(), InitDynParameters(), InitParameters(), InitParametersGla(), and TestAngleTable().
◆ CalculateCoulombPhase()
Definition at line 844 of file G4NuclNuclDiffuseElastic.hh.
845{
847 // G4complex gammalog = GammaLogarithm(z);
849 return gammalog.imag();
850}
G4complex GammaLogB2n(G4complex xx)
Definition G4NuclNuclDiffuseElastic.hh:610
Referenced by AmplitudeGla().
◆ CalculateCoulombPhaseZero()
|
inline |
Definition at line 831 of file G4NuclNuclDiffuseElastic.hh.
832{
834 // G4complex gammalog = GammaLogarithm(z);
836 fCoulombPhase0 = gammalog.imag();
837}
Referenced by InitDynParameters(), InitParameters(), and InitParametersGla().
◆ CalculateNuclearRad()
Definition at line 483 of file G4NuclNuclDiffuseElastic.hh.
484{
485 G4double r0 = 1.*CLHEP::fermi, radius;
486 // r0 *= 1.12;
487 // r0 *= 1.44;
488 r0 *= fNuclearRadiusCof;
489
490 /*
491 if( A < 50. )
492 {
493 if( A > 10. ) r0 = 1.16*( 1 - (1.0/G4Pow::GetInstance()->A23(A)) )*CLHEP::fermi; // 1.08*fermi;
494 else r0 = 1.1*CLHEP::fermi;
495
496 radius = r0*G4Pow::GetInstance()->A13(A);
497 }
498 else
499 {
500 r0 = 1.7*CLHEP::fermi; // 1.7*fermi;
501
502 radius = r0*G4Pow::GetInstance()->powA(A, 0.27); // 0.27);
503 }
504 */
506
507 return radius;
508}
Referenced by GetDiffuseElasticSumXsc(), GetDiffuseElasticXsc(), Initialise(), InitialiseOnFly(), InitParameters(), InitParametersGla(), IntegralElasticProb(), SampleCoulombMuCMS(), SampleThetaCMS(), and TestAngleTable().
◆ CalculateParticleBeta()
|
inline |
Definition at line 441 of file G4NuclNuclDiffuseElastic.hh.
Referenced by GetCoulombElasticXsc(), GetCoulombIntegralXsc(), GetCoulombTotalXsc(), and GetDiffuseElasticSumXsc().
◆ CalculateRutherfordAnglePar()
|
inline |
Definition at line 858 of file G4NuclNuclDiffuseElastic.hh.
859{
860 fHalfRutThetaTg = fZommerfeld/fProfileLambda; // (fWaveVector*fNuclearRadius);
861 fRutherfordTheta = 2.*std::atan(fHalfRutThetaTg);
862 fHalfRutThetaTg2 = fHalfRutThetaTg*fHalfRutThetaTg;
863 // G4cout<<"fRutherfordTheta = "<<fRutherfordTheta/degree<<" degree"<<G4endl;
864
865}
Referenced by InitDynParameters(), and InitParameters().
◆ CalculateZommerfeld()
|
inline |
Definition at line 456 of file G4NuclNuclDiffuseElastic.hh.
457{
458 fZommerfeld = CLHEP::fine_structure_const*Z1*Z2/beta;
459
460 return fZommerfeld;
461}
Referenced by GetCoulombElasticXsc(), GetCoulombIntegralXsc(), GetCoulombTotalXsc(), GetDiffuseElasticSumXsc(), InitDynParameters(), InitParameters(), InitParametersGla(), and TestAngleTable().
◆ CoulombAmplitude()
Definition at line 797 of file G4NuclNuclDiffuseElastic.hh.
798{
799 G4complex ca;
800
801 G4double sinHalfTheta = std::sin(0.5*theta);
802 G4double sinHalfTheta2 = sinHalfTheta*sinHalfTheta;
803 sinHalfTheta2 += fAm;
804
807 ca = std::exp(z);
808
809 ca *= -fZommerfeld/(2.*fWaveVector*sinHalfTheta2);
810
811 return ca;
812}
Referenced by AmplitudeGG(), AmplitudeGla(), AmplitudeNear(), AmplitudeSim(), and CoulombAmplitudeMod2().
◆ CoulombAmplitudeMod2()
Definition at line 818 of file G4NuclNuclDiffuseElastic.hh.
◆ DampFactor()
Definition at line 396 of file G4NuclNuclDiffuseElastic.hh.
397{
398 G4double df;
400
401 // x *= pi;
402
403 if( std::fabs(x) < 0.01 )
404 {
405 df = 1./(1. + x/f2 + x*x/f3 + x*x*x/f4);
406 }
407 else
408 {
409 df = x/std::sinh(x);
410 }
411 return df;
412}
Referenced by GetDiffElasticProb(), GetDiffElasticSumProb(), and GetDiffElasticSumProbA().
◆ GammaLess()
Definition at line 1554 of file G4NuclNuclDiffuseElastic.cc.
1555{
1556 G4double sinThetaR = 2.*fHalfRutThetaTg/(1. + fHalfRutThetaTg2);
1557 G4double cosHalfThetaR2 = 1./(1. + fHalfRutThetaTg2);
1558
1559 G4double u = std::sqrt(0.5*fProfileLambda/sinThetaR);
1560 G4double kappa = u/std::sqrt(CLHEP::pi);
1561 G4double dTheta = theta - fRutherfordTheta;
1562 u *= dTheta;
1563 G4double u2 = u*u;
1564 G4double u2m2p3 = u2*2./3.;
1565
1568 order /= std::sqrt(2.);
1569
1572 G4complex a1 = 0.5*(1. + 2.*(1.+im*u2m2p3)*cosHalfThetaR2)/sinThetaR;
1574
1575 return out;
1576}
Referenced by AmplitudeNear().
◆ GammaLogarithm()
Definition at line 2010 of file G4NuclNuclDiffuseElastic.cc.
2011{
2013 24.01409824083091, -1.231739572450155,
2014 0.1208650973866179e-2, -0.5395239384953e-5 } ;
2015 G4int j;
2016 G4complex z = zz - 1.0;
2017 G4complex tmp = z + 5.5;
2018 tmp -= (z + 0.5) * std::log(tmp);
2020
2021 for ( j = 0; j <= 5; j++ )
2022 {
2023 z += 1.0;
2024 ser += cof[j]/z;
2025 }
2026 return -tmp + std::log(2.5066282746310005*ser);
2027}
◆ GammaLogB2n()
Definition at line 610 of file G4NuclNuclDiffuseElastic.hh.
611{
612 G4complex z1 = 12.*z;
613 G4complex z2 = z*z;
614 G4complex z3 = z2*z;
615 G4complex z5 = z2*z3;
616 G4complex z7 = z2*z5;
617
618 z3 *= 360.;
619 z5 *= 1260.;
620 z7 *= 1680.;
621
623 result += 1./z1 - 1./z3 +1./z5 -1./z7;
624 return result;
625}
Referenced by CalculateCoulombPhase(), and CalculateCoulombPhaseZero().
◆ GammaMore()
Definition at line 1582 of file G4NuclNuclDiffuseElastic.cc.
1583{
1584 G4double sinThetaR = 2.*fHalfRutThetaTg/(1. + fHalfRutThetaTg2);
1585 G4double cosHalfThetaR2 = 1./(1. + fHalfRutThetaTg2);
1586
1587 G4double u = std::sqrt(0.5*fProfileLambda/sinThetaR);
1588 G4double kappa = u/std::sqrt(CLHEP::pi);
1589 G4double dTheta = theta - fRutherfordTheta;
1590 u *= dTheta;
1591 G4double u2 = u*u;
1592 G4double u2m2p3 = u2*2./3.;
1593
1596 order /= std::sqrt(2.);
1599 G4complex a1 = 0.5*(1. + 2.*(1.+im*u2m2p3)*cosHalfThetaR2)/sinThetaR;
1601
1602 return out;
1603}
Referenced by AmplitudeNear().
◆ GetCint()
Definition at line 767 of file G4NuclNuclDiffuseElastic.hh.
768{
769 G4double out;
770
771 G4Integrator<G4NuclNuclDiffuseElastic,G4double(G4NuclNuclDiffuseElastic::*)(G4double)> integral;
772
774
775 return out;
776}
G4double Legendre96(T &typeT, F f, G4double a, G4double b)
G4double GetCosHaPit2(G4double t)
Definition G4NuclNuclDiffuseElastic.hh:195
Referenced by GetRatioGen(), and GetRatioSim().
◆ GetCofAlphaCoulomb()
|
inline |
Definition at line 293 of file G4NuclNuclDiffuseElastic.hh.
293{return fCofAlphaCoulomb;};
◆ GetCofAlphaMax()
|
inline |
Definition at line 292 of file G4NuclNuclDiffuseElastic.hh.
292{return fCofAlphaMax;};
◆ GetCosHaPit2()
Definition at line 195 of file G4NuclNuclDiffuseElastic.hh.
195{return std::cos(CLHEP::halfpi*t*t);};
Referenced by GetCint().
◆ GetCoulombElasticXsc()
|
inline |
Definition at line 514 of file G4NuclNuclDiffuseElastic.hh.
518{
519 G4double sinHalfTheta = std::sin(0.5*theta);
520 G4double sinHalfTheta2 = sinHalfTheta*sinHalfTheta;
525 G4double k = momentum/CLHEP::hbarc;
527 G4double ch2 = ch*ch;
528 G4double xsc = ch2/((sinHalfTheta2+am)*(sinHalfTheta2+am));
529
530 return xsc;
531}
G4double CalculateZommerfeld(G4double beta, G4double Z1, G4double Z2)
Definition G4NuclNuclDiffuseElastic.hh:456
G4double CalculateParticleBeta(const G4ParticleDefinition *particle, G4double momentum)
Definition G4NuclNuclDiffuseElastic.hh:441
G4double CalculateAm(G4double momentum, G4double n, G4double Z)
Definition G4NuclNuclDiffuseElastic.hh:468
G4double GetPDGCharge() const
Definition G4ParticleDefinition.hh:100
Referenced by GetInvCoulombElasticXsc().
◆ GetCoulombIntegralXsc()
|
inline |
Definition at line 579 of file G4NuclNuclDiffuseElastic.hh.
582{
583 G4double c1 = std::cos(theta1);
584 //G4cout<<"c1 = "<<c1<<G4endl;
585 G4double c2 = std::cos(theta2);
586 // G4cout<<"c2 = "<<c2<<G4endl;
588 // G4cout<<"beta = "<<beta<<G4endl;
591 // G4cout<<"fZomerfeld = "<<n<<G4endl;
593 // G4cout<<"cof Am = "<<am<<G4endl;
594 G4double k = momentum/CLHEP::hbarc;
595 // G4cout<<"k = "<<k*CLHEP::fermi<<" 1/fermi"<<G4endl;
596 // G4cout<<"k*Bohr_radius = "<<k*CLHEP::Bohr_radius<<G4endl;
598 G4double ch2 = ch*ch;
599 am *= 2.;
600 G4double xsc = ch2*CLHEP::twopi*(c1-c2)/((1 - c1 + am)*(1 - c2 + am));
601
602 return xsc;
603}
◆ GetCoulombTotalXsc()
|
inline |
Definition at line 553 of file G4NuclNuclDiffuseElastic.hh.
◆ GetDiffElasticProb()
Definition at line 397 of file G4NuclNuclDiffuseElastic.cc.
402{
403 G4double sigma, bzero, bzero2, bonebyarg, bonebyarg2, damp, damp2;
404 G4double delta, diffuse, gamma;
405 G4double e1, e2, bone, bone2;
406
407 // G4double wavek = momentum/hbarc; // wave vector
408 // G4double r0 = 1.08*fermi;
409 // G4double rad = r0*G4Pow::GetInstance()->A13(A);
410
412 G4double kr2 = kr*kr;
413 G4double krt = kr*theta;
414
415 bzero = BesselJzero(krt);
416 bzero2 = bzero*bzero;
417 bone = BesselJone(krt);
418 bone2 = bone*bone;
419 bonebyarg = BesselOneByArg(krt);
420 bonebyarg2 = bonebyarg*bonebyarg;
421
422 // VI - Coverity complains
423 /*
424 if (fParticle == theProton)
425 {
426 diffuse = 0.63*fermi;
427 gamma = 0.3*fermi;
428 delta = 0.1*fermi*fermi;
429 e1 = 0.3*fermi;
430 e2 = 0.35*fermi;
431 }
432 else // as proton, if were not defined
433 {
434 */
435 diffuse = 0.63*fermi;
436 gamma = 0.3*fermi;
437 delta = 0.1*fermi*fermi;
438 e1 = 0.3*fermi;
439 e2 = 0.35*fermi;
440 //}
442
443 // G4double kgamma = fWaveVector*gamma; // wavek*delta;
444
446 G4double kgamma2 = kgamma*kgamma;
447
448 // G4double dk2t = delta*fWaveVector*fWaveVector*theta; // delta*wavek*wavek*theta;
449 // G4double dk2t2 = dk2t*dk2t;
450 // G4double pikdt = pi*fWaveVector*diffuse*theta;// pi*wavek*diffuse*theta;
451
453
454 damp = DampFactor(pikdt);
455 damp2 = damp*damp;
456
457 G4double mode2k2 = (e1*e1+e2*e2)*fWaveVector*fWaveVector;
458 G4double e2dk3t = -2.*e2*delta*fWaveVector*fWaveVector*fWaveVector*theta;
459
460
461 sigma = kgamma2;
462 // sigma += dk2t2;
463 sigma *= bzero2;
464 sigma += mode2k2*bone2 + e2dk3t*bzero*bone;
465 sigma += kr2*bonebyarg2;
466 sigma *= damp2; // *rad*rad;
467
468 return sigma;
469}
G4double BesselJzero(G4double z)
Definition G4NuclNuclDiffuseElastic.cc:2034
G4double BesselOneByArg(G4double z)
Definition G4NuclNuclDiffuseElastic.hh:419
G4double DampFactor(G4double z)
Definition G4NuclNuclDiffuseElastic.hh:396
Referenced by GetDiffuseElasticXsc().
◆ GetDiffElasticSumProb()
Definition at line 477 of file G4NuclNuclDiffuseElastic.cc.
482{
483 G4double sigma, bzero, bzero2, bonebyarg, bonebyarg2, damp, damp2;
484 G4double delta, diffuse, gamma;
485 G4double e1, e2, bone, bone2;
486
487 // G4double wavek = momentum/hbarc; // wave vector
488 // G4double r0 = 1.08*fermi;
489 // G4double rad = r0*G4Pow::GetInstance()->A13(A);
490
492 G4double kr2 = kr*kr;
493 G4double krt = kr*theta;
494
495 bzero = BesselJzero(krt);
496 bzero2 = bzero*bzero;
497 bone = BesselJone(krt);
498 bone2 = bone*bone;
499 bonebyarg = BesselOneByArg(krt);
500 bonebyarg2 = bonebyarg*bonebyarg;
501
502 if (fParticle == theProton)
503 {
504 diffuse = 0.63*fermi;
505 // diffuse = 0.6*fermi;
506 gamma = 0.3*fermi;
507 delta = 0.1*fermi*fermi;
508 e1 = 0.3*fermi;
509 e2 = 0.35*fermi;
510 }
511 else // as proton, if were not defined
512 {
513 diffuse = 0.63*fermi;
514 gamma = 0.3*fermi;
515 delta = 0.1*fermi*fermi;
516 e1 = 0.3*fermi;
517 e2 = 0.35*fermi;
518 }
520 // G4double kgamma = fWaveVector*gamma; // wavek*delta;
522
523 // G4cout<<"kgamma = "<<kgamma<<G4endl;
524
525 if(fAddCoulomb) // add Coulomb correction
526 {
527 G4double sinHalfTheta = std::sin(0.5*theta);
528 G4double sinHalfTheta2 = sinHalfTheta*sinHalfTheta;
529
530 kgamma += 0.5*fZommerfeld/kr/(sinHalfTheta2+fAm); // correction at J0()
531 // kgamma += 0.65*fZommerfeld/kr/(sinHalfTheta2+fAm); // correction at J0()
532 }
533
534 G4double kgamma2 = kgamma*kgamma;
535
536 // G4double dk2t = delta*fWaveVector*fWaveVector*theta; // delta*wavek*wavek*theta;
537 // G4cout<<"dk2t = "<<dk2t<<G4endl;
538 // G4double dk2t2 = dk2t*dk2t;
539 // G4double pikdt = pi*fWaveVector*diffuse*theta;// pi*wavek*diffuse*theta;
540
542
543 // G4cout<<"pikdt = "<<pikdt<<G4endl;
544
545 damp = DampFactor(pikdt);
546 damp2 = damp*damp;
547
548 G4double mode2k2 = (e1*e1+e2*e2)*fWaveVector*fWaveVector;
549 G4double e2dk3t = -2.*e2*delta*fWaveVector*fWaveVector*fWaveVector*theta;
550
551 sigma = kgamma2;
552 // sigma += dk2t2;
553 sigma *= bzero2;
554 sigma += mode2k2*bone2;
555 sigma += e2dk3t*bzero*bone;
556
557 // sigma += kr2*(1 + 8.*fZommerfeld*fZommerfeld/kr2)*bonebyarg2; // correction at J1()/()
558 sigma += kr2*bonebyarg2; // correction at J1()/()
559
560 sigma *= damp2; // *rad*rad;
561
562 return sigma;
563}
Referenced by GetDiffuseElasticSumXsc().
◆ GetDiffElasticSumProbA()
Definition at line 572 of file G4NuclNuclDiffuseElastic.cc.
573{
574 G4double theta;
575
576 theta = std::sqrt(alpha);
577
578 // theta = std::acos( 1 - alpha/2. );
579
580 G4double sigma, bzero, bzero2, bonebyarg, bonebyarg2, damp, damp2;
581 G4double delta, diffuse, gamma;
582 G4double e1, e2, bone, bone2;
583
584 // G4double wavek = momentum/hbarc; // wave vector
585 // G4double r0 = 1.08*fermi;
586 // G4double rad = r0*G4Pow::GetInstance()->A13(A);
587
589 G4double kr2 = kr*kr;
590 G4double krt = kr*theta;
591
592 bzero = BesselJzero(krt);
593 bzero2 = bzero*bzero;
594 bone = BesselJone(krt);
595 bone2 = bone*bone;
596 bonebyarg = BesselOneByArg(krt);
597 bonebyarg2 = bonebyarg*bonebyarg;
598
599 if (fParticle == theProton)
600 {
601 diffuse = 0.63*fermi;
602 // diffuse = 0.6*fermi;
603 gamma = 0.3*fermi;
604 delta = 0.1*fermi*fermi;
605 e1 = 0.3*fermi;
606 e2 = 0.35*fermi;
607 }
608 else // as proton, if were not defined
609 {
610 diffuse = 0.63*fermi;
611 gamma = 0.3*fermi;
612 delta = 0.1*fermi*fermi;
613 e1 = 0.3*fermi;
614 e2 = 0.35*fermi;
615 }
617 // G4double kgamma = fWaveVector*gamma; // wavek*delta;
619
620 // G4cout<<"kgamma = "<<kgamma<<G4endl;
621
622 if(fAddCoulomb) // add Coulomb correction
623 {
625 G4double sinHalfTheta2 = sinHalfTheta*sinHalfTheta;
626
627 kgamma += 0.5*fZommerfeld/kr/(sinHalfTheta2+fAm); // correction at J0()
628 // kgamma += 0.65*fZommerfeld/kr/(sinHalfTheta2+fAm); // correction at J0()
629 }
630
631 G4double kgamma2 = kgamma*kgamma;
632
633 // G4double dk2t = delta*fWaveVector*fWaveVector*theta; // delta*wavek*wavek*theta;
634 // G4cout<<"dk2t = "<<dk2t<<G4endl;
635 // G4double dk2t2 = dk2t*dk2t;
636 // G4double pikdt = pi*fWaveVector*diffuse*theta;// pi*wavek*diffuse*theta;
637
639
640 // G4cout<<"pikdt = "<<pikdt<<G4endl;
641
642 damp = DampFactor(pikdt);
643 damp2 = damp*damp;
644
645 G4double mode2k2 = (e1*e1+e2*e2)*fWaveVector*fWaveVector;
646 G4double e2dk3t = -2.*e2*delta*fWaveVector*fWaveVector*fWaveVector*theta;
647
648 sigma = kgamma2;
649 // sigma += dk2t2;
650 sigma *= bzero2;
651 sigma += mode2k2*bone2;
652 sigma += e2dk3t*bzero*bone;
653
654 // sigma += kr2*(1 + 8.*fZommerfeld*fZommerfeld/kr2)*bonebyarg2; // correction at J1()/()
655 sigma += kr2*bonebyarg2; // correction at J1()/()
656
657 sigma *= damp2; // *rad*rad;
658
659 return sigma;
660}
Referenced by GetIntegrandFunction().
◆ GetDiffuseElasticSumXsc()
| G4double G4NuclNuclDiffuseElastic::GetDiffuseElasticSumXsc | ( | const G4ParticleDefinition * | particle, |
| G4double | theta, | ||
| G4double | momentum, | ||
| G4double | A, | ||
| G4double | Z ) |
Definition at line 261 of file G4NuclNuclDiffuseElastic.cc.
265{
266 fParticle = particle;
267 fWaveVector = momentum/hbarc;
268 fAtomicWeight = A;
269 fAtomicNumber = Z;
271 fAddCoulomb = false;
272
274
275 G4double kRt = fWaveVector*fNuclearRadius*theta;
276 G4double kRtC = 1.9;
277
278 if( z && (kRt > kRtC) )
279 {
280 fAddCoulomb = true;
281 fBeta = CalculateParticleBeta( particle, momentum);
282 fZommerfeld = CalculateZommerfeld( fBeta, z, fAtomicNumber);
283 fAm = CalculateAm( momentum, fZommerfeld, fAtomicNumber);
284 }
286
287 return sigma;
288}
G4double GetDiffElasticSumProb(G4double theta)
Definition G4NuclNuclDiffuseElastic.cc:477
G4double CalculateNuclearRad(G4double A)
Definition G4NuclNuclDiffuseElastic.hh:483
Referenced by GetInvElasticSumXsc().
◆ GetDiffuseElasticXsc()
| G4double G4NuclNuclDiffuseElastic::GetDiffuseElasticXsc | ( | const G4ParticleDefinition * | particle, |
| G4double | theta, | ||
| G4double | momentum, | ||
| G4double | A ) |
Definition at line 190 of file G4NuclNuclDiffuseElastic.cc.
194{
195 fParticle = particle;
196 fWaveVector = momentum/hbarc;
197 fAtomicWeight = A;
198 fAddCoulomb = false;
200
202
203 return sigma;
204}
G4double GetDiffElasticProb(G4double theta)
Definition G4NuclNuclDiffuseElastic.cc:397
Referenced by GetInvElasticXsc().
◆ GetErf()
Definition at line 631 of file G4NuclNuclDiffuseElastic.hh.
632{
633 G4double t, z, tmp, result;
634
635 z = std::fabs(x);
636 t = 1.0/(1.0+0.5*z);
637
638 tmp = t*std::exp(-z*z-1.26551223+t*(1.00002368+t*(0.37409196+t*(0.09678418+
639 t*(-0.18628806+t*(0.27886807+t*(-1.13520398+t*(1.48851587+
640 t*(-0.82215223+t*0.17087277)))))))));
641
642 if( x >= 0.) result = 1. - tmp;
643 else result = 1. + tmp;
644
645 return result;
646}
Referenced by GetErfComp(), and GetErfInt().
◆ GetErfcComp()
Definition at line 652 of file G4NuclNuclDiffuseElastic.hh.
653{
655 return erfcz;
656}
G4complex GetErfComp(G4complex z, G4int nMax)
Definition G4NuclNuclDiffuseElastic.cc:1467
◆ GetErfcInt()
Definition at line 672 of file G4NuclNuclDiffuseElastic.hh.
673{
675 return erfcz;
676}
G4complex GetErfInt(G4complex z)
Definition G4NuclNuclDiffuseElastic.cc:1528
Referenced by AmplitudeSim(), GammaLess(), and GammaMore().
◆ GetErfComp()
Definition at line 1467 of file G4NuclNuclDiffuseElastic.cc.
1468{
1470 G4double n2, cofn, shny, chny, fn, gn;
1471
1472 G4double x = z.real();
1473 G4double y = z.imag();
1474
1475 G4double outRe = 0., outIm = 0.;
1476
1477 G4double twox = 2.*x;
1478 G4double twoxy = twox*y;
1479 G4double twox2 = twox*twox;
1480
1482
1483 G4double cos2xy = std::cos(twoxy);
1484 G4double sin2xy = std::sin(twoxy);
1485
1486 G4double twoxcos2xy = twox*cos2xy;
1487 G4double twoxsin2xy = twox*sin2xy;
1488
1490 {
1492
1494
1495 chny = std::cosh(n*y);
1496 shny = std::sinh(n*y);
1497
1498 fn = twox - twoxcos2xy*chny + n*sin2xy*shny;
1499 gn = twoxsin2xy*chny + n*cos2xy*shny;
1500
1501 fn *= cofn;
1502 gn *= cofn;
1503
1504 outRe += fn;
1505 outIm += gn;
1506 }
1507 outRe *= 2*cof1;
1508 outIm *= 2*cof1;
1509
1510 if(std::abs(x) < 0.0001)
1511 {
1512 outRe += GetErf(x);
1513 outIm += cof1*y;
1514 }
1515 else
1516 {
1517 outRe += GetErf(x) + cof1*(1-cos2xy)/twox;
1518 outIm += cof1*sin2xy/twox;
1519 }
1521}
G4double GetErf(G4double x)
Definition G4NuclNuclDiffuseElastic.hh:631
Referenced by GetErfcComp(), and TestErfcComp().
◆ GetErfcSer()
Definition at line 662 of file G4NuclNuclDiffuseElastic.hh.
663{
665 return erfcz;
666}
G4complex GetErfSer(G4complex z, G4int nMax)
Definition G4NuclNuclDiffuseElastic.hh:719
◆ GetErfInt()
Definition at line 1528 of file G4NuclNuclDiffuseElastic.cc.
1529{
1530 G4double outRe, outIm;
1531
1532 G4double x = z.real();
1533 G4double y = z.imag();
1534 fReZ = x;
1535
1536 G4Integrator<G4NuclNuclDiffuseElastic,G4double(G4NuclNuclDiffuseElastic::*)(G4double)> integral;
1537
1540
1541 outRe *= 2./std::sqrt(CLHEP::pi);
1542 outIm *= 2./std::sqrt(CLHEP::pi);
1543
1544 outRe += GetErf(x);
1545
1547}
G4double GetExpSin(G4double x)
Definition G4NuclNuclDiffuseElastic.hh:753
G4double GetExpCos(G4double x)
Definition G4NuclNuclDiffuseElastic.hh:742
Referenced by GetErfcInt(), and TestErfcInt().
◆ GetErfSer()
Definition at line 719 of file G4NuclNuclDiffuseElastic.hh.
720{
722 G4double a =1., b = 1., tmp;
723 G4complex sum = z, d = z;
724
726 {
727 a *= 2.;
728 b *= 2.*n +1.;
729 d *= z*z;
730
731 tmp = a/b;
732
733 sum += tmp*d;
734 }
735 sum *= 2.*std::exp(-z*z)/std::sqrt(CLHEP::pi);
736
737 return sum;
738}
Referenced by GetErfcSer(), and TestErfcSer().
◆ GetExpCos()
Definition at line 742 of file G4NuclNuclDiffuseElastic.hh.
743{
744 G4double result;
745
746 result = G4Exp(x*x-fReZ*fReZ);
747 result *= std::cos(2.*x*fReZ);
748 return result;
749}
Referenced by GetErfInt().
◆ GetExpSin()
Definition at line 753 of file G4NuclNuclDiffuseElastic.hh.
754{
755 G4double result;
756
757 result = G4Exp(x*x-fReZ*fReZ);
758 result *= std::sin(2.*x*fReZ);
759 return result;
760}
Referenced by GetErfInt().
◆ GetFresnelDiffuseXsc()
Definition at line 1023 of file G4NuclNuclDiffuseElastic.hh.
1024{
1027 G4double xsc = ratio*ruthXsc;
1028 return xsc;
1029}
G4double GetRatioGen(G4double theta)
Definition G4NuclNuclDiffuseElastic.cc:1973
G4double GetRutherfordXsc(G4double theta)
Definition G4NuclNuclDiffuseElastic.hh:537
Referenced by GetFresnelIntegrandXsc().
◆ GetFresnelIntegrandXsc()
Definition at line 1035 of file G4NuclNuclDiffuseElastic.hh.
1036{
1037 G4double theta = std::sqrt(alpha);
1039 return xsc;
1040}
G4double GetFresnelDiffuseXsc(G4double theta)
Definition G4NuclNuclDiffuseElastic.hh:1023
Referenced by BuildAngleTable().
◆ GetHadronNucleonXscNS()
| G4double G4NuclNuclDiffuseElastic::GetHadronNucleonXscNS | ( | G4ParticleDefinition * | pParticle, |
| G4double | pTkin, | ||
| G4ParticleDefinition * | tParticle ) |
Definition at line 1863 of file G4NuclNuclDiffuseElastic.cc.
1866{
1868 G4double hpXsc(0);
1869 G4double hnXsc(0);
1870
1871
1874
1875 G4double proj_energy = proj_mass + pTkin;
1876 G4double proj_momentum = std::sqrt(pTkin*(pTkin+2*proj_mass));
1877
1879
1880 sMand /= CLHEP::GeV*CLHEP::GeV; // in GeV for parametrisation
1881 proj_momentum /= CLHEP::GeV;
1882 proj_energy /= CLHEP::GeV;
1883 proj_mass /= CLHEP::GeV;
1885
1886 // General PDG fit constants
1887
1888
1889 // fEtaRatio=Re[f(0)]/Im[f(0)]
1890
1891 if( proj_momentum >= 1.2 )
1892 {
1894 }
1895 else if( proj_momentum >= 0.6 )
1896 {
1898 (G4Pow::GetInstance()->powA(3*proj_momentum,2.2)+1);
1899 }
1900 else
1901 {
1902 fEtaRatio = 15.5*proj_momentum/(27*proj_momentum*proj_momentum*proj_momentum+2);
1903 }
1905
1906 // xsc
1907
1908 if( proj_momentum >= 10. ) // high energy: pp = nn = np
1909 // if( proj_momentum >= 2.)
1910 {
1911 //Delta = 1.;
1912
1913 //if( proj_energy < 40. ) Delta = 0.916+0.0021*proj_energy;
1914
1915 //AR-12Aug2016 if( proj_momentum >= 10.)
1916 {
1917 B0 = 7.5;
1918 A0 = 100. - B0*G4Log(3.0e7);
1919
1920 xsection = A0 + B0*G4Log(proj_energy) - 11
1922 0.93827*0.93827,-0.165); // mb
1923 }
1924 }
1925 else // low energy pp = nn != np
1926 {
1927 if(pParticle == tParticle) // pp or nn // nn to be pp
1928 {
1929 if( proj_momentum < 0.73 )
1930 {
1932 }
1933 else if( proj_momentum < 1.05 )
1934 {
1935 hnXsc = 23 + 40*(G4Log(proj_momentum/0.73))*
1936 (G4Log(proj_momentum/0.73));
1937 }
1938 else // if( proj_momentum < 10. )
1939 {
1940 hnXsc = 39.0 +
1941 75*(proj_momentum - 1.2)/(G4Pow::GetInstance()->powA(proj_momentum,3.0) + 0.15);
1942 }
1943 xsection = hnXsc;
1944 }
1945 else // pn to be np
1946 {
1947 if( proj_momentum < 0.8 )
1948 {
1950 }
1951 else if( proj_momentum < 1.4 )
1952 {
1954 }
1955 else // if( proj_momentum < 10. )
1956 {
1957 hpXsc = 33.3+
1959 (G4Pow::GetInstance()->powA(proj_momentum,2.50)+0.95);
1960 }
1961 xsection = hpXsc;
1962 }
1963 }
1964 xsection *= CLHEP::millibarn; // parametrised in mb
1966 return xsection;
1967}
G4double CalcMandelstamS(const G4double mp, const G4double mt, const G4double Plab)
Definition G4NuclNuclDiffuseElastic.hh:1080
Referenced by InitParametersGla().
◆ GetIntegrandFunction()
Definition at line 668 of file G4NuclNuclDiffuseElastic.cc.
669{
670 G4double result;
671
672 result = GetDiffElasticSumProbA(alpha);
673
674 // result *= 2*pi*std::sin(theta);
675
676 return result;
677}
G4double GetDiffElasticSumProbA(G4double alpha)
Definition G4NuclNuclDiffuseElastic.cc:572
Referenced by IntegralElasticProb(), SampleThetaCMS(), and TestAngleTable().
◆ GetInvCoulombElasticXsc()
| G4double G4NuclNuclDiffuseElastic::GetInvCoulombElasticXsc | ( | const G4ParticleDefinition * | particle, |
| G4double | tMand, | ||
| G4double | momentum, | ||
| G4double | A, | ||
| G4double | Z ) |
Definition at line 348 of file G4NuclNuclDiffuseElastic.cc.
352{
354 G4LorentzVector lv1(0.,0.,plab,std::sqrt(plab*plab+m1*m1));
355
358 G4ParticleDefinition * theDef = 0;
359
360 if (iZ == 1 && iA == 1) theDef = theProton;
361 else if (iZ == 1 && iA == 2) theDef = theDeuteron;
364 else if (iZ == 2 && iA == 4) theDef = theAlpha;
366
368
369 G4LorentzVector lv(0.0,0.0,0.0,tmass);
370 lv += lv1;
371
372 G4ThreeVector bst = lv.boostVector();
373 lv1.boost(-bst);
374
375 G4ThreeVector p1 = lv1.vect();
377 G4double ptot2 = ptot*ptot;
378 G4double cost = 1 - 0.5*std::fabs(tMand)/ptot2;
379
380 if( cost >= 1.0 ) cost = 1.0;
381 else if( cost <= -1.0) cost = -1.0;
382
383 G4double thetaCMS = std::acos(cost);
384
386
387 sigma *= pi/ptot2;
388
389 return sigma;
390}
Definition ThreeVector.h:36
double mag() const
Definition LorentzVector.h:67
G4ParticleDefinition * GetIon(G4int Z, G4int A, G4int lvl=0)
Definition G4IonTable.cc:445
G4double GetCoulombElasticXsc(const G4ParticleDefinition *particle, G4double theta, G4double momentum, G4double Z)
Definition G4NuclNuclDiffuseElastic.hh:514
static G4ParticleTable * GetParticleTable()
Definition G4ParticleTable.cc:82
◆ GetInvElasticSumXsc()
| G4double G4NuclNuclDiffuseElastic::GetInvElasticSumXsc | ( | const G4ParticleDefinition * | particle, |
| G4double | tMand, | ||
| G4double | momentum, | ||
| G4double | A, | ||
| G4double | Z ) |
Definition at line 296 of file G4NuclNuclDiffuseElastic.cc.
300{
302
303 G4LorentzVector lv1(0.,0.,plab,std::sqrt(plab*plab+m1*m1));
304
307
308 G4ParticleDefinition* theDef = 0;
309
310 if (iZ == 1 && iA == 1) theDef = theProton;
311 else if (iZ == 1 && iA == 2) theDef = theDeuteron;
314 else if (iZ == 2 && iA == 4) theDef = theAlpha;
316
318
319 G4LorentzVector lv(0.0,0.0,0.0,tmass);
320 lv += lv1;
321
322 G4ThreeVector bst = lv.boostVector();
323 lv1.boost(-bst);
324
325 G4ThreeVector p1 = lv1.vect();
327 G4double ptot2 = ptot*ptot;
328 G4double cost = 1 - 0.5*std::fabs(tMand)/ptot2;
329
330 if( cost >= 1.0 ) cost = 1.0;
331 else if( cost <= -1.0) cost = -1.0;
332
333 G4double thetaCMS = std::acos(cost);
334
336
337 sigma *= pi/ptot2;
338
339 return sigma;
340}
G4double GetDiffuseElasticSumXsc(const G4ParticleDefinition *particle, G4double theta, G4double momentum, G4double A, G4double Z)
Definition G4NuclNuclDiffuseElastic.cc:261
◆ GetInvElasticXsc()
| G4double G4NuclNuclDiffuseElastic::GetInvElasticXsc | ( | const G4ParticleDefinition * | particle, |
| G4double | theta, | ||
| G4double | momentum, | ||
| G4double | A, | ||
| G4double | Z ) |
Definition at line 211 of file G4NuclNuclDiffuseElastic.cc.
215{
217 G4LorentzVector lv1(0.,0.,plab,std::sqrt(plab*plab+m1*m1));
218
221 G4ParticleDefinition * theDef = 0;
222
223 if (iZ == 1 && iA == 1) theDef = theProton;
224 else if (iZ == 1 && iA == 2) theDef = theDeuteron;
227 else if (iZ == 2 && iA == 4) theDef = theAlpha;
229
231
232 G4LorentzVector lv(0.0,0.0,0.0,tmass);
233 lv += lv1;
234
235 G4ThreeVector bst = lv.boostVector();
236 lv1.boost(-bst);
237
238 G4ThreeVector p1 = lv1.vect();
240 G4double ptot2 = ptot*ptot;
241 G4double cost = 1 - 0.5*std::fabs(tMand)/ptot2;
242
243 if( cost >= 1.0 ) cost = 1.0;
244 else if( cost <= -1.0) cost = -1.0;
245
246 G4double thetaCMS = std::acos(cost);
247
249
250 sigma *= pi/ptot2;
251
252 return sigma;
253}
G4double GetDiffuseElasticXsc(const G4ParticleDefinition *particle, G4double theta, G4double momentum, G4double A)
Definition G4NuclNuclDiffuseElastic.cc:190
◆ GetLegendrePol()
Definition at line 1441 of file G4NuclNuclDiffuseElastic.cc.
1442{
1444 G4double x = std::cos(theta);
1445
1446 if ( n < 0 ) legPol = 0.;
1447 else if( n == 0 ) legPol = 1.;
1448 else if( n == 1 ) legPol = x;
1449 else if( n == 2 ) legPol = (3.*x*x-1.)/2.;
1450 else if( n == 3 ) legPol = (5.*x*x*x-3.*x)/2.;
1451 else if( n == 4 ) legPol = (35.*x*x*x*x-30.*x*x+3.)/8.;
1452 else if( n == 5 ) legPol = (63.*x*x*x*x*x-70.*x*x*x+15.*x)/8.;
1453 else if( n == 6 ) legPol = (231.*x*x*x*x*x*x-315.*x*x*x*x+105.*x*x-5.)/16.;
1454 else
1455 {
1456 // legPol = ( (2*n-1)*x*GetLegendrePol(n-1,x) - (n-1)*GetLegendrePol(n-2,x) )/n;
1457
1458 legPol = std::sqrt( 2./(n*CLHEP::pi*std::sin(theta+epsilon)) )*std::sin( (n+0.5)*theta+0.25*CLHEP::pi );
1459 }
1460 return legPol;
1461}
G4double epsilon(G4double density, G4double temperature)
Definition G4DNAElectronHoleRecombination.cc:98
Referenced by AmplitudeGla().
◆ GetNuclearRadius()
|
inline |
Definition at line 185 of file G4NuclNuclDiffuseElastic.hh.
185{return fNuclearRadius;};
◆ GetProfileLambda()
|
inline |
Definition at line 274 of file G4NuclNuclDiffuseElastic.hh.
274{return fProfileLambda;};
◆ GetRatioGen()
Definition at line 1973 of file G4NuclNuclDiffuseElastic.cc.
1974{
1975 G4double sinThetaR = 2.*fHalfRutThetaTg/(1. + fHalfRutThetaTg2);
1976 G4double dTheta = 0.5*(theta - fRutherfordTheta);
1977 G4double sindTheta = std::sin(dTheta);
1978
1980 G4double prof2 = prof*prof;
1981 // G4double profmod = std::abs(prof);
1982 G4double order = std::sqrt(fProfileLambda/sinThetaR/CLHEP::pi)*2.*sindTheta;
1983
1984 order = std::abs(order); // since sin changes sign!
1985 // G4cout<<"order = "<<order<<G4endl;
1986
1989
1990 G4double out;
1991
1992 if ( theta <= fRutherfordTheta )
1993 {
1994 out = 1. + 0.5*( (0.5-cosFresnel)*(0.5-cosFresnel)+(0.5-sinFresnel)*(0.5-sinFresnel) )*prof2;
1995 out += ( cosFresnel + sinFresnel - 1. )*prof;
1996 }
1997 else
1998 {
1999 out = 0.5*( (0.5-cosFresnel)*(0.5-cosFresnel)+(0.5-sinFresnel)*(0.5-sinFresnel) )*prof2;
2000 }
2001
2002 return out;
2003}
G4double Profile(G4double theta)
Definition G4NuclNuclDiffuseElastic.hh:908
G4double GetSint(G4double x)
Definition G4NuclNuclDiffuseElastic.hh:782
G4double GetCint(G4double x)
Definition G4NuclNuclDiffuseElastic.hh:767
Referenced by GetFresnelDiffuseXsc().
◆ GetRatioSim()
Definition at line 1003 of file G4NuclNuclDiffuseElastic.hh.
1004{
1005 G4double sinThetaR = 2.*fHalfRutThetaTg/(1. + fHalfRutThetaTg2);
1006 G4double dTheta = 0.5*(theta - fRutherfordTheta);
1007 G4double sindTheta = std::sin(dTheta);
1008
1009 G4double order = std::sqrt(fProfileLambda/sinThetaR/CLHEP::pi)*2.*sindTheta;
1010 // G4cout<<"order = "<<order<<G4endl;
1013
1014 G4double out = 0.5*( cosFresnel*cosFresnel + sinFresnel*sinFresnel );
1015
1016 return out;
1017}
◆ GetRutherfordXsc()
Definition at line 537 of file G4NuclNuclDiffuseElastic.hh.
538{
539 G4double sinHalfTheta = std::sin(0.5*theta);
540 G4double sinHalfTheta2 = sinHalfTheta*sinHalfTheta;
541
542 G4double ch2 = fRutherfordRatio*fRutherfordRatio;
543
544 G4double xsc = ch2/(sinHalfTheta2+fAm)/(sinHalfTheta2+fAm);
545
546 return xsc;
547}
Referenced by GetFresnelDiffuseXsc().
◆ GetScatteringAngle()
| G4double G4NuclNuclDiffuseElastic::GetScatteringAngle | ( | G4int | iMomentum, |
| G4int | iAngle, | ||
| G4double | position ) |
Definition at line 1087 of file G4NuclNuclDiffuseElastic.cc.
1088{
1089 G4double x1, x2, y1, y2, randAngle;
1090
1091 if( iAngle == 0 )
1092 {
1093 randAngle = (*fAngleTable)(iMomentum)->GetLowEdgeEnergy(iAngle);
1094 // iAngle++;
1095 }
1096 else
1097 {
1099 {
1100 iAngle = G4int((*fAngleTable)(iMomentum)->GetVectorLength() - 1);
1101 }
1102 y1 = (*(*fAngleTable)(iMomentum))(iAngle-1);
1103 y2 = (*(*fAngleTable)(iMomentum))(iAngle);
1104
1105 x1 = (*fAngleTable)(iMomentum)->GetLowEdgeEnergy(iAngle-1);
1106 x2 = (*fAngleTable)(iMomentum)->GetLowEdgeEnergy(iAngle);
1107
1108 if ( x1 == x2 ) randAngle = x2;
1109 else
1110 {
1112 else
1113 {
1114 randAngle = x1 + ( position - y1 )*( x2 - x1 )/( y2 - y1 );
1115 }
1116 }
1117 }
1118 return randAngle;
1119}
Definition xmltok.h:144
Referenced by SampleTableThetaCMS().
◆ GetSinHaPit2()
Definition at line 196 of file G4NuclNuclDiffuseElastic.hh.
196{return std::sin(CLHEP::halfpi*t*t);};
Referenced by GetSint().
◆ GetSint()
Definition at line 782 of file G4NuclNuclDiffuseElastic.hh.
783{
784 G4Integrator<G4NuclNuclDiffuseElastic,G4double(G4NuclNuclDiffuseElastic::*)(G4double)> integral;
785
786 G4double out =
788
789 return out;
790}
G4double GetSinHaPit2(G4double t)
Definition G4NuclNuclDiffuseElastic.hh:196
Referenced by GetRatioGen(), and GetRatioSim().
◆ InitDynParameters()
| void G4NuclNuclDiffuseElastic::InitDynParameters | ( | const G4ParticleDefinition * | theParticle, |
| G4double | partMom ) |
Definition at line 1768 of file G4NuclNuclDiffuseElastic.cc.
1770{
1771 G4double a = 0.;
1774
1775 fWaveVector = partMom/CLHEP::hbarc;
1776
1778
1779 if( z )
1780 {
1781 a = partMom/m1; // beta*gamma for m1
1782 fBeta = a/std::sqrt(1+a*a);
1783 fZommerfeld = CalculateZommerfeld( fBeta, z, fAtomicNumber);
1784 fRutherfordRatio = fZommerfeld/fWaveVector;
1785 fAm = CalculateAm( partMom, fZommerfeld, fAtomicNumber);
1786 }
1788 fProfileDelta = fCofDelta*fProfileLambda;
1789 fProfileAlpha = fCofAlpha*fProfileLambda;
1790
1791 CalculateCoulombPhaseZero();
1792 CalculateRutherfordAnglePar();
1793
1794 return;
1795}
void CalculateRutherfordAnglePar()
Definition G4NuclNuclDiffuseElastic.hh:858
void CalculateCoulombPhaseZero()
Definition G4NuclNuclDiffuseElastic.hh:831
Referenced by BuildAngleTable(), and SampleCoulombMuCMS().
◆ Initialise()
| void G4NuclNuclDiffuseElastic::Initialise | ( | ) |
Definition at line 150 of file G4NuclNuclDiffuseElastic.cc.
151{
152
153 // fEnergyVector = new G4PhysicsLogVector( theMinEnergy, theMaxEnergy, fEnergyBin );
154
156 std::size_t jEl, numOfEl = G4Element::GetNumberOfElements();
157
158 // projectile radius
159
162
163 for(jEl = 0 ; jEl < numOfEl; ++jEl) // application element loop
164 {
165 fAtomicNumber = (*theElementTable)[jEl]->GetZ(); // atomic number
166 fAtomicWeight = G4NistManager::Instance()->GetAtomicMassAmu( static_cast< G4int >( fAtomicNumber ) );
167
168 fNuclearRadius = CalculateNuclearRad(fAtomicWeight);
169 fNuclearRadius += R1;
170
172 {
174 <<(*theElementTable)[jEl]->GetName()<<G4endl;
175 }
176 fElementNumberVector.push_back(fAtomicNumber);
177 fElementNameVector.push_back((*theElementTable)[jEl]->GetName());
178
179 BuildAngleTable();
180 fAngleBank.push_back(fAngleTable);
181 }
182}
G4double GetAtomicMassAmu(const G4String &symb) const
Definition G4NistManager.hh:319
void BuildAngleTable()
Definition G4NuclNuclDiffuseElastic.cc:1008
G4int GetBaryonNumber() const
Definition G4ParticleDefinition.hh:121
◆ InitialiseOnFly()
Definition at line 979 of file G4NuclNuclDiffuseElastic.cc.
980{
981 fAtomicNumber = Z; // atomic number
983
986
987 fNuclearRadius = CalculateNuclearRad(fAtomicWeight) + R1;
988
990 {
993 }
994 fElementNumberVector.push_back(fAtomicNumber);
995
996 BuildAngleTable();
997
998 fAngleBank.push_back(fAngleTable);
999
1000 return;
1001}
Referenced by SampleTableThetaCMS().
◆ InitParameters()
| void G4NuclNuclDiffuseElastic::InitParameters | ( | const G4ParticleDefinition * | theParticle, |
| G4double | partMom, | ||
| G4double | Z, | ||
| G4double | A ) |
Definition at line 1723 of file G4NuclNuclDiffuseElastic.cc.
1725{
1726 fAtomicNumber = Z; // atomic number
1728
1729 fNuclearRadius2 = CalculateNuclearRad(fAtomicWeight);
1731 fNuclearRadius1 = CalculateNuclearRad(A1);
1732 // fNuclearRadius = std::sqrt(fNuclearRadius1*fNuclearRadius1+fNuclearRadius2*fNuclearRadius2);
1733 fNuclearRadius = fNuclearRadius1 + fNuclearRadius2;
1734
1735 G4double a = 0.;
1738
1739 fWaveVector = partMom/CLHEP::hbarc;
1740
1743
1744 if( z )
1745 {
1746 a = partMom/m1; // beta*gamma for m1
1747 fBeta = a/std::sqrt(1+a*a);
1748 fZommerfeld = CalculateZommerfeld( fBeta, z, fAtomicNumber);
1749 fRutherfordRatio = fZommerfeld/fWaveVector;
1750 fAm = CalculateAm( partMom, fZommerfeld, fAtomicNumber);
1751 }
1755 fProfileDelta = fCofDelta*fProfileLambda;
1756 fProfileAlpha = fCofAlpha*fProfileLambda;
1757
1758 CalculateCoulombPhaseZero();
1759 CalculateRutherfordAnglePar();
1760
1761 return;
1762}
◆ InitParametersGla()
| void G4NuclNuclDiffuseElastic::InitParametersGla | ( | const G4DynamicParticle * | aParticle, |
| G4double | partMom, | ||
| G4double | Z, | ||
| G4double | A ) |
Definition at line 1803 of file G4NuclNuclDiffuseElastic.cc.
1805{
1806 fAtomicNumber = Z; // target atomic number
1808
1812 fNuclearRadiusSquare = fNuclearRadius1*fNuclearRadius1+fNuclearRadius2*fNuclearRadius2;
1813
1814
1815 G4double a = 0., kR12;
1818
1819 fWaveVector = partMom/CLHEP::hbarc;
1820
1821 G4double pN = A1 - z;
1822 if( pN < 0. ) pN = 0.;
1823
1825 if( tN < 0. ) tN = 0.;
1826
1828 pTkin /= A1;
1829
1830
1831 fSumSigma = (Z*z+pN*tN)*GetHadronNucleonXscNS(theProton, pTkin, theProton) +
1832 (z*tN+pN*Z)*GetHadronNucleonXscNS(theProton, pTkin, theNeutron);
1833
1836 kR12 = fWaveVector*std::sqrt(fNuclearRadiusSquare);
1838 fMaxL = (G4int(kR12)+1)*4;
1840
1841 if( z )
1842 {
1843 a = partMom/m1; // beta*gamma for m1
1844 fBeta = a/std::sqrt(1+a*a);
1845 fZommerfeld = CalculateZommerfeld( fBeta, z, fAtomicNumber);
1846 fAm = CalculateAm( partMom, fZommerfeld, fAtomicNumber);
1847 }
1848
1849 CalculateCoulombPhaseZero();
1850
1851
1852 return;
1853}
G4ParticleDefinition * GetDefinition() const
G4double GetKineticEnergy() const
G4double GetHadronNucleonXscNS(G4ParticleDefinition *pParticle, G4double pTkin, G4ParticleDefinition *tParticle)
Definition G4NuclNuclDiffuseElastic.cc:1863
◆ IntegralElasticProb()
| G4double G4NuclNuclDiffuseElastic::IntegralElasticProb | ( | const G4ParticleDefinition * | particle, |
| G4double | theta, | ||
| G4double | momentum, | ||
| G4double | A ) |
Definition at line 684 of file G4NuclNuclDiffuseElastic.cc.
688{
689 G4double result;
690 fParticle = particle;
691 fWaveVector = momentum/hbarc;
692 fAtomicWeight = A;
693
695
696
697 G4Integrator<G4NuclNuclDiffuseElastic,G4double(G4NuclNuclDiffuseElastic::*)(G4double)> integral;
698
699 // result = integral.Legendre10(this,&G4NuclNuclDiffuseElastic::GetIntegrandFunction, 0., theta );
701
702 return result;
703}
G4double GetIntegrandFunction(G4double theta)
Definition G4NuclNuclDiffuseElastic.cc:668
◆ PhaseFar()
Definition at line 945 of file G4NuclNuclDiffuseElastic.hh.
946{
947 G4double twosigma = 2.*fCoulombPhase0;
948 twosigma -= fZommerfeld*G4Log(fHalfRutThetaTg2/(1.+fHalfRutThetaTg2));
949 twosigma += fRutherfordTheta*fZommerfeld/fHalfRutThetaTg - CLHEP::halfpi;
950 twosigma += fProfileLambda*theta - 0.25*CLHEP::pi;
951
952 twosigma *= fCofPhase;
953
955
956 return std::exp(z);
957}
Referenced by AmplitudeFar().
◆ PhaseNear()
Definition at line 927 of file G4NuclNuclDiffuseElastic.hh.
928{
929 G4double twosigma = 2.*fCoulombPhase0;
930 twosigma -= fZommerfeld*G4Log(fHalfRutThetaTg2/(1.+fHalfRutThetaTg2));
931 twosigma += fRutherfordTheta*fZommerfeld/fHalfRutThetaTg - CLHEP::halfpi;
932 twosigma -= fProfileLambda*theta - 0.25*CLHEP::pi;
933
934 twosigma *= fCofPhase;
935
937
938 return std::exp(z);
939}
Referenced by AmplitudeNear().
◆ Profile()
Definition at line 908 of file G4NuclNuclDiffuseElastic.hh.
909{
910 G4double dTheta = fRutherfordTheta - theta;
911 G4double result = 0., argument = 0.;
912
913 if(std::abs(dTheta) < 0.001) result = 1.;
914 else
915 {
916 argument = fProfileDelta*dTheta;
917 result = CLHEP::pi*argument;
918 result /= std::sinh(result);
919 }
920 return result;
921}
Referenced by GetRatioGen().
◆ ProfileFar()
Definition at line 892 of file G4NuclNuclDiffuseElastic.hh.
893{
894 G4double dTheta = fRutherfordTheta + theta;
895 G4double argument = fProfileDelta*dTheta;
896
898 result /= std::sinh(CLHEP::pi*argument);
899 result /= dTheta;
900
901 return result;
902}
Referenced by AmplitudeFar().
◆ ProfileNear()
Definition at line 871 of file G4NuclNuclDiffuseElastic.hh.
872{
873 G4double dTheta = fRutherfordTheta - theta;
874 G4double result = 0., argument = 0.;
875
876 if(std::abs(dTheta) < 0.001) result = fProfileAlpha*fProfileDelta;
877 else
878 {
879 argument = fProfileDelta*dTheta;
880 result = CLHEP::pi*argument*G4Exp(fProfileAlpha*argument);
881 result /= std::sinh(CLHEP::pi*argument);
882 result -= 1.;
883 result /= dTheta;
884 }
885 return result;
886}
Referenced by AmplitudeNear(), and AmplitudeSim().
◆ SampleCoulombMuCMS()
| G4double G4NuclNuclDiffuseElastic::SampleCoulombMuCMS | ( | const G4ParticleDefinition * | aParticle, |
| G4double | p ) |
Definition at line 810 of file G4NuclNuclDiffuseElastic.cc.
811{
812 G4double t(0.), rand(0.), mu(0.);
813
816
817 fNuclearRadius = CalculateNuclearRad(fAtomicWeight);
818 fNuclearRadius += R1;
819
820 InitDynParameters(fParticle, p);
821
822 fCoulombMuC = fHalfRutThetaTg2/(1.+fHalfRutThetaTg2);
823
824 rand = G4UniformRand();
825
826 // sample (1-cosTheta) in 0 < Theta < ThetaC as Coulomb scattering
827
828 mu = fCoulombMuC*rand*fAm;
829 mu /= fAm + fCoulombMuC*( 1. - rand );
830
831 t = 4.*p*p*mu;
832
833 return t;
834}
Referenced by SampleInvariantT().
◆ SampleInvariantT()
|
virtual |
Reimplemented from G4HadronElastic.
Definition at line 778 of file G4NuclNuclDiffuseElastic.cc.
780{
781 fParticle = aParticle;
782 fAtomicNumber = G4double(Z);
784
786 G4double totElab = std::sqrt(m1*m1+p*p);
788 G4LorentzVector lv1(p,0.0,0.0,totElab);
789 G4LorentzVector lv(0.0,0.0,0.0,mass2);
790 lv += lv1;
791
792 G4ThreeVector bst = lv.boostVector();
793 lv1.boost(-bst);
794
795 G4ThreeVector p1 = lv1.vect();
797
798 // t = SampleTableT( aParticle, momentumCMS, G4double(Z), G4double(A) ); // sample theta2 in cms
799
801
802
803 return t;
804}
G4double SampleCoulombMuCMS(const G4ParticleDefinition *aParticle, G4double p)
Definition G4NuclNuclDiffuseElastic.cc:810
static G4double GetNuclearMass(const G4double A, const G4double Z)
Definition G4NucleiProperties.cc:49
◆ SampleT()
| G4double G4NuclNuclDiffuseElastic::SampleT | ( | const G4ParticleDefinition * | aParticle, |
| G4double | p, | ||
| G4double | A ) |
Definition at line 709 of file G4NuclNuclDiffuseElastic.cc.
711{
714 return t;
715}
G4double SampleThetaCMS(const G4ParticleDefinition *aParticle, G4double p, G4double A)
Definition G4NuclNuclDiffuseElastic.cc:723
Referenced by SampleThetaLab().
◆ SampleTableT()
| G4double G4NuclNuclDiffuseElastic::SampleTableT | ( | const G4ParticleDefinition * | aParticle, |
| G4double | p, | ||
| G4double | Z, | ||
| G4double | A ) |
Definition at line 841 of file G4NuclNuclDiffuseElastic.cc.
843{
845 // G4double t = 2*p*p*( 1 - std::cos(std::sqrt(alpha)) ); // -t !!!
847 return t;
848}
G4double SampleTableThetaCMS(const G4ParticleDefinition *aParticle, G4double p, G4double Z, G4double A)
Definition G4NuclNuclDiffuseElastic.cc:856
◆ SampleTableThetaCMS()
| G4double G4NuclNuclDiffuseElastic::SampleTableThetaCMS | ( | const G4ParticleDefinition * | aParticle, |
| G4double | p, | ||
| G4double | Z, | ||
| G4double | A ) |
Definition at line 856 of file G4NuclNuclDiffuseElastic.cc.
858{
859 std::size_t iElement;
860 G4int iMomentum, iAngle;
862 G4double m1 = particle->GetPDGMass();
863
864 for(iElement = 0; iElement < fElementNumberVector.size(); iElement++)
865 {
866 if( std::fabs(Z - fElementNumberVector[iElement]) < 0.5) break;
867 }
868 if ( iElement == fElementNumberVector.size() )
869 {
871
872 // iElement--;
873
874 // G4cout << "G4NuclNuclDiffuseElastic: Element with atomic number " << Z
875 // << " is not found, return zero angle" << G4endl;
876 // return 0.; // no table for this element
877 }
878 // G4cout<<"iElement = "<<iElement<<G4endl;
879
880 fAngleTable = fAngleBank[iElement];
881
882 G4double kinE = std::sqrt(momentum*momentum + m1*m1) - m1;
883
884 for( iMomentum = 0; iMomentum < fEnergyBin; iMomentum++)
885 {
886 // G4cout<<iMomentum<<", kinE = "<<kinE/MeV<<", vectorE = "<<fEnergyVector->GetLowEdgeEnergy(iMomentum)/MeV<<G4endl;
887
888 if( kinE < fEnergyVector->GetLowEdgeEnergy(iMomentum) ) break;
889 }
890 // G4cout<<"iMomentum = "<<iMomentum<<", fEnergyBin -1 = "<<fEnergyBin -1<<G4endl;
891
892
893 if ( iMomentum >= fEnergyBin ) iMomentum = fEnergyBin-1; // kinE is more then theMaxEnergy
894 if ( iMomentum < 0 ) iMomentum = 0; // against negative index, kinE < theMinEnergy
895
896
897 if (iMomentum == fEnergyBin -1 || iMomentum == 0 ) // the table edges
898 {
900
901 // G4cout<<"position = "<<position<<G4endl;
902
903 for(iAngle = 0; iAngle < fAngleBin-1; iAngle++)
904 {
906 }
907 if (iAngle >= fAngleBin-1) iAngle = fAngleBin-2;
908
909 // G4cout<<"iAngle = "<<iAngle<<G4endl;
910
912
913 // G4cout<<"randAngle = "<<randAngle<<G4endl;
914 }
915 else // kinE inside between energy table edges
916 {
917 // position = (*(*fAngleTable)(iMomentum))(fAngleBin-2)*G4UniformRand();
919
920 // G4cout<<"position = "<<position<<G4endl;
921
922 for(iAngle = 0; iAngle < fAngleBin-1; iAngle++)
923 {
924 // if( position < (*(*fAngleTable)(iMomentum))(iAngle) ) break;
926 }
927 if (iAngle >= fAngleBin-1) iAngle = fAngleBin-2;
928
929 // G4cout<<"iAngle = "<<iAngle<<G4endl;
930
932
933 // G4cout<<"theta2 = "<<theta2<<G4endl;
934
935 E2 = fEnergyVector->GetLowEdgeEnergy(iMomentum);
936
937 // G4cout<<"E2 = "<<E2<<G4endl;
938
939 iMomentum--;
940
941 // position = (*(*fAngleTable)(iMomentum))(fAngleBin-2)*G4UniformRand();
942
943 // G4cout<<"position = "<<position<<G4endl;
944
945 for(iAngle = 0; iAngle < fAngleBin-1; iAngle++)
946 {
947 // if( position < (*(*fAngleTable)(iMomentum))(iAngle) ) break;
949 }
950 if (iAngle >= fAngleBin-1) iAngle = fAngleBin-2;
951
953
954 // G4cout<<"theta1 = "<<theta1<<G4endl;
955
956 E1 = fEnergyVector->GetLowEdgeEnergy(iMomentum);
957
958 // G4cout<<"E1 = "<<E1<<G4endl;
959
960 W = 1.0/(E2 - E1);
961 W1 = (E2 - kinE)*W;
962 W2 = (kinE - E1)*W;
963
964 randAngle = W1*theta1 + W2*theta2;
965
966 // randAngle = theta2;
967 }
968 // G4double angle = randAngle;
969 // if (randAngle > 0.) randAngle /= 2*pi*std::sin(angle);
970 // G4cout<<"randAngle = "<<randAngle/degree<<G4endl;
971
972 return randAngle;
973}
void InitialiseOnFly(G4double Z, G4double A)
Definition G4NuclNuclDiffuseElastic.cc:979
G4double GetScatteringAngle(G4int iMomentum, G4int iAngle, G4double position)
Definition G4NuclNuclDiffuseElastic.cc:1087
Referenced by SampleTableT().
◆ SampleThetaCMS()
| G4double G4NuclNuclDiffuseElastic::SampleThetaCMS | ( | const G4ParticleDefinition * | aParticle, |
| G4double | p, | ||
| G4double | A ) |
Definition at line 723 of file G4NuclNuclDiffuseElastic.cc.
725{
726 G4int i, iMax = 100;
727 G4double norm, theta1, theta2, thetaMax;
728 G4double result = 0., sum = 0.;
729
730 fParticle = particle;
731 fWaveVector = momentum/hbarc;
732 fAtomicWeight = A;
733
735
736 thetaMax = 10.174/fWaveVector/fNuclearRadius;
737
738 if (thetaMax > pi) thetaMax = pi;
739
740 G4Integrator<G4NuclNuclDiffuseElastic,G4double(G4NuclNuclDiffuseElastic::*)(G4double)> integral;
741
742 // result = integral.Legendre10(this,&G4NuclNuclDiffuseElastic::GetIntegrandFunction, 0., theta );
743 norm = integral.Legendre96(this,&G4NuclNuclDiffuseElastic::GetIntegrandFunction, 0., thetaMax );
744
745 norm *= G4UniformRand();
746
747 for(i = 1; i <= iMax; i++)
748 {
749 theta1 = (i-1)*thetaMax/iMax;
750 theta2 = i*thetaMax/iMax;
751 sum += integral.Legendre10(this,&G4NuclNuclDiffuseElastic::GetIntegrandFunction, theta1, theta2);
752
753 if ( sum >= norm )
754 {
755 result = 0.5*(theta1 + theta2);
756 break;
757 }
758 }
759 if (i > iMax ) result = 0.5*(theta1 + theta2);
760
761 G4double sigma = pi*thetaMax/iMax;
762
763 result += G4RandGauss::shoot(0.,sigma);
764
765 if(result < 0.) result = 0.;
766 if(result > thetaMax) result = thetaMax;
767
768 return result;
769}
Referenced by SampleT().
◆ SampleThetaLab()
| G4double G4NuclNuclDiffuseElastic::SampleThetaLab | ( | const G4HadProjectile * | aParticle, |
| G4double | tmass, | ||
| G4double | A ) |
Definition at line 1130 of file G4NuclNuclDiffuseElastic.cc.
1132{
1137 G4LorentzVector lv(0.0,0.0,0.0,tmass);
1138 lv += lv1;
1139
1140 G4ThreeVector bst = lv.boostVector();
1141 lv1.boost(-bst);
1142
1145 G4double tmax = 4.0*ptot*ptot;
1146 G4double t = 0.0;
1147
1148
1149 //
1150 // Sample t
1151 //
1152
1154
1155 // NaN finder
1156 if(!(t < 0.0 || t >= 0.0))
1157 {
1159 {
1161 << " mom(GeV)= " << plab/GeV
1162 << " S-wave will be sampled"
1163 << G4endl;
1164 }
1165 t = G4UniformRand()*tmax;
1166 }
1168 {
1171 }
1172 // Sampling of angles in CM system
1173
1175 G4double cost = 1. - 2.0*t/tmax;
1176 G4double sint;
1177
1178 if( cost >= 1.0 )
1179 {
1180 cost = 1.0;
1181 sint = 0.0;
1182 }
1183 else if( cost <= -1.0)
1184 {
1185 cost = -1.0;
1186 sint = 0.0;
1187 }
1188 else
1189 {
1190 sint = std::sqrt((1.0-cost)*(1.0+cost));
1191 }
1193 {
1195 }
1196 G4ThreeVector v1(sint*std::cos(phi),sint*std::sin(phi),cost);
1197 v1 *= ptot;
1198 G4LorentzVector nlv1(v1.x(),v1.y(),v1.z(),std::sqrt(ptot*ptot + m1*m1));
1199
1200 nlv1.boost(bst);
1201
1202 G4ThreeVector np1 = nlv1.vect();
1203
1204 // G4double theta = std::acos( np1.z()/np1.mag() ); // degree;
1205
1207
1208 return theta;
1209}
double theta() const
HepLorentzVector & boost(double, double, double)
Definition LorentzVector.cc:55
Hep3Vector vect() const
const G4ParticleDefinition * GetDefinition() const
Definition G4HadProjectile.hh:86
const G4LorentzVector & Get4Momentum() const
Definition G4HadProjectile.hh:91
G4double SampleT(const G4ParticleDefinition *aParticle, G4double p, G4double A)
Definition G4NuclNuclDiffuseElastic.cc:709
◆ SetCofAlpha()
|
inline |
Definition at line 281 of file G4NuclNuclDiffuseElastic.hh.
281{fCofAlpha = pa;};
◆ SetCofAlphaCoulomb()
|
inline |
Definition at line 283 of file G4NuclNuclDiffuseElastic.hh.
283{fCofAlphaCoulomb = pa;};
◆ SetCofAlphaMax()
|
inline |
Definition at line 282 of file G4NuclNuclDiffuseElastic.hh.
282{fCofAlphaMax = pa;};
◆ SetCofDelta()
|
inline |
Definition at line 285 of file G4NuclNuclDiffuseElastic.hh.
285{fCofDelta = pa;};
◆ SetCofFar()
|
inline |
Definition at line 287 of file G4NuclNuclDiffuseElastic.hh.
287{fCofFar = pa;};
◆ SetCofLambda()
|
inline |
Definition at line 279 of file G4NuclNuclDiffuseElastic.hh.
279{fCofLambda = pa;};
◆ SetCofPhase()
|
inline |
Definition at line 286 of file G4NuclNuclDiffuseElastic.hh.
286{fCofPhase = pa;};
◆ SetEtaRatio()
|
inline |
Definition at line 288 of file G4NuclNuclDiffuseElastic.hh.
288{fEtaRatio = pa;};
◆ SetHEModelLowLimit()
|
inline |
Definition at line 377 of file G4NuclNuclDiffuseElastic.hh.
378{
379 lowEnergyLimitHE = value;
380}
◆ SetLowestEnergyLimit()
|
inline |
Definition at line 387 of file G4NuclNuclDiffuseElastic.hh.
388{
389 lowestEnergyLimit = value;
390}
◆ SetMaxL()
|
inline |
Definition at line 289 of file G4NuclNuclDiffuseElastic.hh.
289{fMaxL = l;};
◆ SetNuclearRadiusCof()
|
inline |
Definition at line 290 of file G4NuclNuclDiffuseElastic.hh.
290{fNuclearRadiusCof = r;};
◆ SetPlabLowLimit()
|
inline |
Definition at line 372 of file G4NuclNuclDiffuseElastic.hh.
373{
374 plabLowLimit = value;
375}
◆ SetProfileAlpha()
|
inline |
Definition at line 278 of file G4NuclNuclDiffuseElastic.hh.
278{fProfileAlpha = pa;};
◆ SetProfileDelta()
|
inline |
Definition at line 277 of file G4NuclNuclDiffuseElastic.hh.
277{fProfileDelta = pd;};
◆ SetProfileLambda()
|
inline |
Definition at line 276 of file G4NuclNuclDiffuseElastic.hh.
276{fProfileLambda = pl;};
◆ SetQModelLowLimit()
|
inline |
Definition at line 382 of file G4NuclNuclDiffuseElastic.hh.
383{
384 lowEnergyLimitQ = value;
385}
◆ SetRecoilKinEnergyLimit()
|
inline |
Definition at line 367 of file G4NuclNuclDiffuseElastic.hh.
368{
369 lowEnergyRecoilLimit = value;
370}
◆ TestAngleTable()
| void G4NuclNuclDiffuseElastic::TestAngleTable | ( | const G4ParticleDefinition * | theParticle, |
| G4double | partMom, | ||
| G4double | Z, | ||
| G4double | A ) |
Definition at line 1338 of file G4NuclNuclDiffuseElastic.cc.
1340{
1341 fAtomicNumber = Z; // atomic number
1343 fNuclearRadius = CalculateNuclearRad(fAtomicWeight);
1344
1345
1346
1349
1350 fElementNumberVector.push_back(fAtomicNumber);
1351
1352
1353
1354
1355 G4int i=0, j;
1358 G4double deltaL10 = 0., deltaL96 = 0., deltaAG = 0.;
1359 G4double sumL10 = 0.,sumL96 = 0.,sumAG = 0.;
1361
1362 G4Integrator<G4NuclNuclDiffuseElastic,G4double(G4NuclNuclDiffuseElastic::*)(G4double)> integral;
1363
1365
1366 fWaveVector = partMom/hbarc;
1367
1368 G4double kR = fWaveVector*fNuclearRadius;
1369 G4double kR2 = kR*kR;
1372
1373 alphaMax = kRmax*kRmax/kR2;
1374
1375 if (alphaMax > 4.) alphaMax = 4.; // vmg05-02-09: was pi2
1376
1377 alphaCoulomb = kRcoul*kRcoul/kR2;
1378
1379 if( z )
1380 {
1381 a = partMom/m1; // beta*gamma for m1
1382 fBeta = a/std::sqrt(1+a*a);
1383 fZommerfeld = CalculateZommerfeld( fBeta, z, fAtomicNumber);
1384 fAm = CalculateAm( partMom, fZommerfeld, fAtomicNumber);
1385 }
1387
1388 // G4PhysicsLogVector* angleBins = new G4PhysicsLogVector( 0.001*alphaMax, alphaMax, fAngleBin );
1389
1390
1391 fAddCoulomb = false;
1392
1393 for(j = 1; j < fAngleBin; j++)
1394 {
1395 // alpha1 = angleBins->GetLowEdgeEnergy(j-1);
1396 // alpha2 = angleBins->GetLowEdgeEnergy(j);
1397
1398 alpha1 = alphaMax*(j-1)/fAngleBin;
1399 alpha2 = alphaMax*( j )/fAngleBin;
1400
1402
1403 deltaL10 = integral.Legendre10(this, &G4NuclNuclDiffuseElastic::GetIntegrandFunction, alpha1, alpha2);
1404 deltaL96 = integral.Legendre96(this, &G4NuclNuclDiffuseElastic::GetIntegrandFunction, alpha1, alpha2);
1407
1408 // G4cout<<alpha1<<"\t"<<std::sqrt(alpha1)/degree<<"\t"
1409 // <<deltaL10<<"\t"<<deltaL96<<"\t"<<deltaAG<<G4endl;
1410
1411 sumL10 += deltaL10;
1412 sumL96 += deltaL96;
1413 sumAG += deltaAG;
1414
1417
1419 }
1420 fAngleTable->insertAt(i,angleVector);
1421 fAngleBank.push_back(fAngleTable);
1422
1423 /*
1424 // Integral over all angle range - Bad accuracy !!!
1425
1426 sumL10 = integral.Legendre10(this, &G4NuclNuclDiffuseElastic::GetIntegrandFunction, 0., alpha2);
1427 sumL96 = integral.Legendre96(this, &G4NuclNuclDiffuseElastic::GetIntegrandFunction, 0., alpha2);
1428 sumAG = integral.AdaptiveGauss(this, &G4NuclNuclDiffuseElastic::GetIntegrandFunction,
1429 0., alpha2,epsilon);
1430 G4cout<<G4endl;
1431 G4cout<<alpha2<<"\t"<<std::sqrt(alpha2)/degree<<"\t"
1432 <<sumL10<<"\t"<<sumL96<<"\t"<<sumAG<<G4endl;
1433 */
1434 return;
1435}
◆ TestErfcComp()
Definition at line 683 of file G4NuclNuclDiffuseElastic.hh.
◆ TestErfcInt()
◆ TestErfcSer()
◆ ThetaCMStoThetaLab()
| G4double G4NuclNuclDiffuseElastic::ThetaCMStoThetaLab | ( | const G4DynamicParticle * | aParticle, |
| G4double | tmass, | ||
| G4double | thetaCMS ) |
Definition at line 1218 of file G4NuclNuclDiffuseElastic.cc.
1220{
1223 // G4double plab = aParticle->GetTotalMomentum();
1225 G4LorentzVector lv(0.0,0.0,0.0,tmass);
1226
1227 lv += lv1;
1228
1229 G4ThreeVector bst = lv.boostVector();
1230
1231 lv1.boost(-bst);
1232
1235
1237 G4double cost = std::cos(thetaCMS);
1238 G4double sint;
1239
1240 if( cost >= 1.0 )
1241 {
1242 cost = 1.0;
1243 sint = 0.0;
1244 }
1245 else if( cost <= -1.0)
1246 {
1247 cost = -1.0;
1248 sint = 0.0;
1249 }
1250 else
1251 {
1252 sint = std::sqrt((1.0-cost)*(1.0+cost));
1253 }
1255 {
1257 }
1258 G4ThreeVector v1(sint*std::cos(phi),sint*std::sin(phi),cost);
1259 v1 *= ptot;
1260 G4LorentzVector nlv1(v1.x(),v1.y(),v1.z(),std::sqrt(ptot*ptot + m1*m1));
1261
1262 nlv1.boost(bst);
1263
1264 G4ThreeVector np1 = nlv1.vect();
1265
1266
1268
1269 return thetaLab;
1270}
G4LorentzVector Get4Momentum() const
◆ ThetaLabToThetaCMS()
| G4double G4NuclNuclDiffuseElastic::ThetaLabToThetaCMS | ( | const G4DynamicParticle * | aParticle, |
| G4double | tmass, | ||
| G4double | thetaLab ) |
Definition at line 1279 of file G4NuclNuclDiffuseElastic.cc.
1281{
1286 G4LorentzVector lv(0.0,0.0,0.0,tmass);
1287
1288 lv += lv1;
1289
1290 G4ThreeVector bst = lv.boostVector();
1291
1292 // lv1.boost(-bst);
1293
1294 // G4ThreeVector p1 = lv1.vect();
1295 // G4double ptot = p1.mag();
1296
1298 G4double cost = std::cos(thetaLab);
1299 G4double sint;
1300
1301 if( cost >= 1.0 )
1302 {
1303 cost = 1.0;
1304 sint = 0.0;
1305 }
1306 else if( cost <= -1.0)
1307 {
1308 cost = -1.0;
1309 sint = 0.0;
1310 }
1311 else
1312 {
1313 sint = std::sqrt((1.0-cost)*(1.0+cost));
1314 }
1316 {
1318 }
1319 G4ThreeVector v1(sint*std::cos(phi),sint*std::sin(phi),cost);
1320 v1 *= plab;
1321 G4LorentzVector nlv1(v1.x(),v1.y(),v1.z(),std::sqrt(plab*plab + m1*m1));
1322
1323 nlv1.boost(-bst);
1324
1325 G4ThreeVector np1 = nlv1.vect();
1326
1327
1329
1330 return thetaCMS;
1331}
G4double GetTotalMomentum() const
The documentation for this class was generated from the following files:
