BOSS 7.0.9
BESIII Offline Software System
Loading...
Searching...
No Matches
Public Member Functions | List of all members
EvtMultibody Class Reference

#include <EvtMultibody.hh>

+ Inheritance diagram for EvtMultibody:

Public Member Functions

 EvtMultibody ()
 
virtual ~EvtMultibody ()
 
void getName (std::string &name)
 
EvtDecayBase * clone ()
 
void init ()
 
void initProbMax ()
 
void decay (EvtParticle *p)
 
 EvtMultibody ()
 
virtual ~EvtMultibody ()
 
void getName (std::string &name)
 
EvtDecayBase * clone ()
 
void init ()
 
void initProbMax ()
 
void decay (EvtParticle *p)
 
- Public Member Functions inherited from EvtDecayAmp
void makeDecay (EvtParticle *p)
 
void setWeight (double weight)
 
void vertex (const EvtComplex &amp)
 
void vertex (int i1, const EvtComplex &amp)
 
void vertex (int i1, int i2, const EvtComplex &amp)
 
void vertex (int i1, int i2, int i3, const EvtComplex &amp)
 
void vertex (int *i1, const EvtComplex &amp)
 
virtual ~EvtDecayAmp ()
 
void makeDecay (EvtParticle *p)
 
void setWeight (double weight)
 
void vertex (const EvtComplex &amp)
 
void vertex (int i1, const EvtComplex &amp)
 
void vertex (int i1, int i2, const EvtComplex &amp)
 
void vertex (int i1, int i2, int i3, const EvtComplex &amp)
 
void vertex (int *i1, const EvtComplex &amp)
 
virtual ~EvtDecayAmp ()
 
- Public Member Functions inherited from EvtDecayBase
virtual void getName (std::string &name)=0
 
virtual void decay (EvtParticle *p)=0
 
virtual void makeDecay (EvtParticle *p)=0
 
virtual EvtDecayBase * clone ()=0
 
virtual void init ()
 
virtual void initProbMax ()
 
virtual std::string commandName ()
 
virtual void command (std::string cmd)
 
double getProbMax (double prob)
 
double resetProbMax (double prob)
 
 EvtDecayBase ()
 
virtual ~EvtDecayBase ()
 
virtual bool matchingDecay (const EvtDecayBase &other) const
 
EvtId getParentId ()
 
double getBranchingFraction ()
 
void disableCheckQ ()
 
void checkQ ()
 
int getNDaug ()
 
EvtId * getDaugs ()
 
EvtId getDaug (int i)
 
int getNArg ()
 
int getPHOTOS ()
 
void setPHOTOS ()
 
void setVerbose ()
 
void setSummary ()
 
double * getArgs ()
 
std::string * getArgsStr ()
 
double getArg (int j)
 
std::string getArgStr (int j)
 
std::string getModelName ()
 
int getDSum ()
 
int summary ()
 
int verbose ()
 
void saveDecayInfo (EvtId ipar, int ndaug, EvtId *daug, int narg, std::vector< std::string > &args, std::string name, double brfr)
 
void printSummary ()
 
void setProbMax (double prbmx)
 
void noProbMax ()
 
void checkNArg (int a1, int a2=-1, int a3=-1, int a4=-1)
 
void checkNDaug (int d1, int d2=-1)
 
void checkSpinParent (EvtSpinType::spintype sp)
 
void checkSpinDaughter (int d1, EvtSpinType::spintype sp)
 
virtual int nRealDaughters ()
 
virtual void getName (std::string &name)=0
 
virtual void decay (EvtParticle *p)=0
 
virtual void makeDecay (EvtParticle *p)=0
 
virtual EvtDecayBase * clone ()=0
 
virtual void init ()
 
virtual void initProbMax ()
 
virtual std::string commandName ()
 
virtual void command (std::string cmd)
 
double getProbMax (double prob)
 
double resetProbMax (double prob)
 
 EvtDecayBase ()
 
virtual ~EvtDecayBase ()
 
virtual bool matchingDecay (const EvtDecayBase &other) const
 
EvtId getParentId ()
 
double getBranchingFraction ()
 
void disableCheckQ ()
 
void checkQ ()
 
int getNDaug ()
 
EvtId * getDaugs ()
 
EvtId getDaug (int i)
 
int getNArg ()
 
int getPHOTOS ()
 
void setPHOTOS ()
 
void setVerbose ()
 
void setSummary ()
 
double * getArgs ()
 
std::string * getArgsStr ()
 
double getArg (int j)
 
std::string getArgStr (int j)
 
std::string getModelName ()
 
int getDSum ()
 
int summary ()
 
int verbose ()
 
void saveDecayInfo (EvtId ipar, int ndaug, EvtId *daug, int narg, std::vector< std::string > &args, std::string name, double brfr)
 
void printSummary ()
 
void setProbMax (double prbmx)
 
void noProbMax ()
 
void checkNArg (int a1, int a2=-1, int a3=-1, int a4=-1)
 
void checkNDaug (int d1, int d2=-1)
 
void checkSpinParent (EvtSpinType::spintype sp)
 
void checkSpinDaughter (int d1, EvtSpinType::spintype sp)
 
virtual int nRealDaughters ()
 

Additional Inherited Members

- Static Public Member Functions inherited from EvtDecayBase
static void findMasses (EvtParticle *p, int ndaugs, EvtId daugs[10], double masses[10])
 
static void findMass (EvtParticle *p)
 
static double findMaxMass (EvtParticle *p)
 
static void findMasses (EvtParticle *p, int ndaugs, EvtId daugs[10], double masses[10])
 
static void findMass (EvtParticle *p)
 
static double findMaxMass (EvtParticle *p)
 
- Protected Member Functions inherited from EvtDecayBase
bool daugsDecayedByParentModel ()
 
bool daugsDecayedByParentModel ()
 
- Protected Attributes inherited from EvtDecayAmp
EvtAmp _amp2
 
- Protected Attributes inherited from EvtDecayBase
bool _daugsDecayedByParentModel
 

Detailed Description

Definition at line 10 of file bak-BesEvtGen-00-04-08/src/EvtGen/EvtGenModels/EvtMultibody.hh.

Constructor & Destructor Documentation

◆ EvtMultibody() [1/2]

EvtMultibody::EvtMultibody ( )
inline

Definition at line 13 of file bak-BesEvtGen-00-04-08/src/EvtGen/EvtGenModels/EvtMultibody.hh.

13{ _decayTree = NULL; }
NULL
#define NULL
Definition: VertexExtrapolate.h:14

Referenced by clone().

◆ ~EvtMultibody() [1/2]

EvtMultibody::~EvtMultibody ( )
virtual

Definition at line 13 of file bak-BesEvtGen-00-04-08/src/EvtGen/EvtGenModels/EvtMultibody.cc.

14{
15 if( _decayTree != NULL ) delete _decayTree;
16 _decayTree=NULL;
17}

◆ EvtMultibody() [2/2]

EvtMultibody::EvtMultibody ( )
inline

Definition at line 13 of file BesEvtGen-00-04-08/src/EvtGen/EvtGenModels/EvtMultibody.hh.

13{ _decayTree = NULL; }

◆ ~EvtMultibody() [2/2]

virtual EvtMultibody::~EvtMultibody ( )
virtual

Member Function Documentation

◆ clone() [1/2]

EvtDecayBase * EvtMultibody::clone ( )
virtual

Implements EvtDecayBase.

Definition at line 24 of file bak-BesEvtGen-00-04-08/src/EvtGen/EvtGenModels/EvtMultibody.cc.

25{
26 return new EvtMultibody;
27}

◆ clone() [2/2]

EvtDecayBase * EvtMultibody::clone ( )
virtual

Implements EvtDecayBase.

◆ decay() [1/2]

void EvtMultibody::decay ( EvtParticle *  p)
virtual

Implements EvtDecayBase.

Definition at line 54 of file bak-BesEvtGen-00-04-08/src/EvtGen/EvtGenModels/EvtMultibody.cc.

55{
56 // Initialize the phase space before doing anything else!
57 p->initializePhaseSpace(getNDaug(),getDaugs());
58 std::vector<EvtVector4R> product;
59
60 for(int i=0; i<getNDaug(); ++i)
61 product.push_back(p->getDaug(i)->getP4Lab());
62
63 EvtSpinAmp amp = _decayTree->amplitude( product );
64
65 int * ilist = new int[amp.rank()];
66
67 // Set up the rotation matrix for the root particle
68 EvtSpinDensity R = p->rotateToHelicityBasis();
69
70 EvtSpinType::spintype type = EvtPDL::getSpinType(getParentId());
71 int twospin = EvtSpinType::getSpin2( EvtPDL::getSpinType(getParentId()) );
72
73 std::vector<EvtSpinType::spintype> types(2, type);
74 EvtSpinAmp newamp( types, EvtComplex(0.0, 0.0) );
75 std::vector<int> index = newamp.iterallowedinit();
76 do {
77 newamp(index) = R.Get((index[0]+twospin)/2,(index[1]+twospin)/2);
78 } while( newamp.iterateallowed( index ) );
79
80 newamp.extcont(amp, 1, 0);
81 amp=newamp;
82
83 index = amp.iterallowedinit();
84 std::vector<int> spins = amp.dims();
85
86 do {
87 for( int i=0; i<index.size(); ++i ) {
88 ilist[i]=index[i]+spins[i];
89 }
90
91 vertex( ilist, amp( index ) );
92 } while( amp.iterateallowed( index ) );
93
94 delete [] ilist;
95}
EvtMTree::amplitude
EvtSpinAmp amplitude(const vector< EvtVector4R > &product) const
Definition: bak-BesEvtGen-00-04-08/src/EvtGen/EvtGenBase/EvtMTree.cc:395
EvtPDL::getSpinType
static EvtSpinType::spintype getSpinType(EvtId i)
Definition: bak-BesEvtGen-00-04-08/src/EvtGen/EvtGenBase/EvtPDL.hh:61
EvtParticle::rotateToHelicityBasis
virtual EvtSpinDensity rotateToHelicityBasis() const =0
EvtParticle::initializePhaseSpace
double initializePhaseSpace(int numdaughter, EvtId *daughters, double poleSize=-1., int whichTwo1=0, int whichTwo2=1)
Definition: bak-BesEvtGen-00-04-08/src/EvtGen/EvtGenBase/EvtParticle.cc:1071
EvtSpinAmp::iterateallowed
bool iterateallowed(vector< int > &index) const
Definition: bak-BesEvtGen-00-04-08/src/EvtGen/EvtGenBase/EvtSpinAmp.cc:411
rb::R
complex_t R(double Q2, double M2, double G, double Mp2, double Mm2)
Definition: TUtil.h:27

◆ decay() [2/2]

void EvtMultibody::decay ( EvtParticle *  p)
virtual

Implements EvtDecayBase.

◆ getName() [1/2]

void EvtMultibody::getName ( std::string &  name)
virtual

Implements EvtDecayBase.

Definition at line 19 of file bak-BesEvtGen-00-04-08/src/EvtGen/EvtGenModels/EvtMultibody.cc.

20{
21 model_name = "D_MULTIBODY";
22}

◆ getName() [2/2]

void EvtMultibody::getName ( std::string &  name)
virtual

Implements EvtDecayBase.

◆ init() [1/2]

void EvtMultibody::init ( )
virtual

Reimplemented from EvtDecayBase.

Definition at line 29 of file bak-BesEvtGen-00-04-08/src/EvtGen/EvtGenModels/EvtMultibody.cc.

30{
31 int N = getNArg();
32
33 _decayTree = new EvtMTree( getDaugs(), getNDaug() );
34
35 for(int i=0; i<N-1; ++i) {
36 if(getArgStr( i )=="RESONANCE") {
37 _decayTree->addtree( getArgStr( ++i ) );
38 } else {
39 report(ERROR,"EvtGen")
40 << "Syntax error at " << getArgStr( i ) << std::endl;
41 ::abort();
42 }
43 }
44}
report
ostream & report(Severity severity, const char *facility)
Definition: bak-BesEvtGen-00-04-08/src/EvtGen/EvtGenBase/EvtReport.cc:36

◆ init() [2/2]

void EvtMultibody::init ( )
virtual

Reimplemented from EvtDecayBase.

◆ initProbMax() [1/2]

void EvtMultibody::initProbMax ( )
virtual

Reimplemented from EvtDecayBase.

Definition at line 49 of file bak-BesEvtGen-00-04-08/src/EvtGen/EvtGenModels/EvtMultibody.cc.

50{
51 // setProbMax(1.0);
52}

◆ initProbMax() [2/2]

void EvtMultibody::initProbMax ( )
virtual

Reimplemented from EvtDecayBase.

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