Geant4 9.6.0
Toolkit for the simulation of the passage of particles through matter
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G4eeCrossSections Class Reference

#include <G4eeCrossSections.hh>

Public Member Functions

 G4eeCrossSections ()
 
virtual ~G4eeCrossSections ()
 
G4double CrossSection2pi (G4double)
 
G4double CrossSection3pi (G4double)
 
G4double CrossSectionPi0G (G4double)
 
G4double CrossSectionEtaG (G4double)
 
G4double CrossSection2Kcharged (G4double)
 
G4double CrossSection2Kneutral (G4double)
 
std::complex< G4doubleDpRho (G4double e)
 

Detailed Description

Definition at line 58 of file G4eeCrossSections.hh.

Constructor & Destructor Documentation

◆ G4eeCrossSections()

G4eeCrossSections::G4eeCrossSections ( )

Definition at line 68 of file G4eeCrossSections.cc.

69{
70 Initialise();
71}

◆ ~G4eeCrossSections()

G4eeCrossSections::~G4eeCrossSections ( )
virtual

Definition at line 75 of file G4eeCrossSections.cc.

76{}

Member Function Documentation

◆ CrossSection2Kcharged()

G4double G4eeCrossSections::CrossSection2Kcharged ( G4double  e)

Definition at line 277 of file G4eeCrossSections.cc.

278{
279 G4double s_inv = e*e;
280 complex<G4double> dphi = DpPhi(e);
281
282 complex<G4double> amp =
283 sqrt(Width2p(s_inv,MsPhi,GPhi,BrPhi2Kc,MsKc)*MsPhi3*BrPhiEe*GPhi)/dphi;
284
285 G4double cross = 12.0*pi*MeVnb*norm(amp)/(e*s_inv);
286
287 return cross;
288}
double G4double
Definition: G4Types.hh:64
const G4double pi

Referenced by G4ee2KChargedModel::ComputeCrossSection().

◆ CrossSection2Kneutral()

G4double G4eeCrossSections::CrossSection2Kneutral ( G4double  e)

Definition at line 292 of file G4eeCrossSections.cc.

293{
294 G4double s_inv = e*e;
295 complex<G4double> dphi = DpPhi(e);
296
297 complex<G4double> amp =
298 sqrt(Width2p(s_inv,MsPhi,GPhi,BrPhiKsKl,MsKs)*MsPhi3*BrPhiEe*GPhi)/dphi;
299
300 G4double cross = 12.0*pi*MeVnb*norm(amp)/(e*s_inv);
301
302 return cross;
303}

Referenced by G4ee2KNeutralModel::ComputeCrossSection().

◆ CrossSection2pi()

G4double G4eeCrossSections::CrossSection2pi ( G4double  e)

Definition at line 193 of file G4eeCrossSections.cc.

194{
195 complex<G4double> xr(cos(PhRho),sin(PhRho));
196 complex<G4double> xo(cos(PhOm2Pi),sin(PhOm2Pi));
197 complex<G4double> xf(cos(PhPhi2Pi),sin(PhPhi2Pi));
198
199 G4double s_inv = e*e;
200 complex<G4double> drho = DpRho(e);
201 complex<G4double> dom = DpOm(e);
202 complex<G4double> dphi = DpPhi(e);
203
204 complex<G4double> amp =
205 sqrt(Width2p(s_inv,MsRho,GRho,1.0,MsPi)*MsRho3*BrRhoEe*GRho)*xr/drho
206 + sqrt(Width2p(s_inv,MsOm,GOm,BrOm2Pi,MsPi)*MsOm3*BrOmEe*GOm)*xo/dom
207 + sqrt(Width2p(s_inv,MsPhi,GPhi,BrPhi2Pi,MsPi)*MsPhi3*BrPhiEe*GPhi)*xf/dphi;
208
209 G4double cross = 12.0*pi*MeVnb*norm(amp)/(e*s_inv);
210
211 return cross;
212}
std::complex< G4double > DpRho(G4double e)

Referenced by G4eeToTwoPiModel::ComputeCrossSection().

◆ CrossSection3pi()

G4double G4eeCrossSections::CrossSection3pi ( G4double  e)

Definition at line 216 of file G4eeCrossSections.cc.

217{
218 complex<G4double> xf(cos(PhPhi2Pi),sin(PhPhi));
219
220 G4double s_inv = e*e;
221 complex<G4double> dom = DpOm(e);
222 complex<G4double> dphi = DpPhi(e);
223
224 complex<G4double> amp =
225 sqrt(Width3p(s_inv,MsOm,GOm,BrOm3Pi)*MsOm3*BrOmEe*GOm)/dom
226 + sqrt(Width3p(s_inv,MsPhi,GPhi,BrPhi3Pi)*MsPhi3*BrPhiEe*GPhi)*xf/dphi;
227
228 G4double cross = 12.0*pi*MeVnb*norm(amp)/(e*s_inv);
229
230 return cross;
231}

Referenced by G4eeTo3PiModel::ComputeCrossSection().

◆ CrossSectionEtaG()

G4double G4eeCrossSections::CrossSectionEtaG ( G4double  e)

Definition at line 256 of file G4eeCrossSections.cc.

257{
258 complex<G4double> xf(cos(PhPhi),sin(PhPhi));
259
260 G4double s_inv = e*e;
261 complex<G4double> drho = DpRho(e);
262 complex<G4double> dom = DpOm(e);
263 complex<G4double> dphi = DpPhi(e);
264
265 complex<G4double> amp =
266 sqrt(WidthPg(s_inv,MsRho,GRho,BrRhoEtaG,MsEta)*MsRho3*BrRhoEe*GRho)/drho
267 + sqrt(WidthPg(s_inv,MsOm,GOm,BrOmEtaG,MsEta)*MsOm3*BrOmEe*GOm)/dom
268 + sqrt(WidthPg(s_inv,MsPhi,GPhi,BrPhiEtaG,MsEta)*MsPhi3*BrPhiEe*GPhi)*xf/dphi;
269
270 G4double cross = 12.0*pi*MeVnb*norm(amp)/(e*s_inv);
271
272 return cross;
273}

Referenced by G4eeToPGammaModel::ComputeCrossSection().

◆ CrossSectionPi0G()

G4double G4eeCrossSections::CrossSectionPi0G ( G4double  e)

Definition at line 235 of file G4eeCrossSections.cc.

236{
237 complex<G4double> xf(cos(PhPhi),sin(PhPhi));
238
239 G4double s_inv = e*e;
240 complex<G4double> drho = DpRho(e);
241 complex<G4double> dom = DpOm(e);
242 complex<G4double> dphi = DpPhi(e);
243
244 complex<G4double> amp =
245 sqrt(WidthPg(s_inv,MsRho,GRho,BrRhoPi0G,MsPi0)*MsRho3*BrRhoEe*GRho)/drho
246 + sqrt(WidthPg(s_inv,MsOm,GOm,BrOmPi0G,MsPi0)*MsOm3*BrOmEe*GOm)/dom
247 + sqrt(WidthPg(s_inv,MsPhi,GPhi,BrPhiPi0G,MsPi0)*MsPhi3*BrPhiEe*GPhi)*xf/dphi;
248
249 G4double cross = 12.0*pi*MeVnb*norm(amp)/(e*s_inv);
250
251 return cross;
252}

Referenced by G4eeToPGammaModel::ComputeCrossSection().

◆ DpRho()

complex< G4double > G4eeCrossSections::DpRho ( G4double  e)

Definition at line 394 of file G4eeCrossSections.cc.

395{
396 complex<G4double> d(MsRho*MsRho - e*e, -e*WidthRho(e));
397 return d;
398}

Referenced by CrossSection2pi(), CrossSectionEtaG(), CrossSectionPi0G(), and G4eeTo3PiModel::SampleSecondaries().


The documentation for this class was generated from the following files: