BOSS 7.0.8
BESIII Offline Software System
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EvtSPL Class Reference

#include <EvtSPL.hh>

+ Inheritance diagram for EvtSPL:

Public Member Functions

 EvtSPL ()
 
virtual ~EvtSPL ()
 
void getName (std::string &name)
 
EvtDecayBaseclone ()
 
void decay (EvtParticle *p)
 
void init ()
 
void init (int, double *)
 
void initProbMax ()
 
- 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 ()
 
- 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 EvtDecayBaseclone ()=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 ()
 
EvtIdgetDaugs ()
 
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 ()
 

Public Attributes

double alpha
 
double u
 

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)
 
- Protected Member Functions inherited from EvtDecayBase
bool daugsDecayedByParentModel ()
 
- Protected Attributes inherited from EvtDecayAmp
EvtAmp _amp2
 
- Protected Attributes inherited from EvtDecayBase
bool _daugsDecayedByParentModel
 

Detailed Description

Definition at line 29 of file EvtSPL.hh.

Constructor & Destructor Documentation

◆ EvtSPL()

EvtSPL::EvtSPL ( )
inline

Definition at line 33 of file EvtSPL.hh.

33{}

Referenced by clone().

◆ ~EvtSPL()

EvtSPL::~EvtSPL ( )
virtual

Definition at line 37 of file EvtSPL.cc.

37{}

Member Function Documentation

◆ clone()

EvtDecayBase * EvtSPL::clone ( )
virtual

Implements EvtDecayBase.

Definition at line 46 of file EvtSPL.cc.

46 {
47
48 return new EvtSPL;
49
50}
EvtSPL()
Definition: EvtSPL.hh:33

◆ decay()

void EvtSPL::decay ( EvtParticle p)
virtual

Implements EvtDecayBase.

Definition at line 64 of file EvtSPL.cc.

64 {
65
67 EvtParticle *v,*s1;
68 EvtVector4R pv,ps,ppr;
69
70 v =p->getDaug(0); //photon
71 s1=p->getDaug(1); //Lambda
72 pv=v->getP4Lab();
73 ps=s1->getP4Lab();
74 ppr=p->getP4();
75
76// Put phase space results into the daughters.
77
78 EvtHelSys angles(ppr,pv); //using helicity sys.angles
79 double theta=angles.getHelAng(1);
80 double phi =angles.getHelAng(2);
81 double gamma=0;
82
83
84 vertex(0,0,0, Djmn(0.5, 0.5, 0.5,phi,theta,gamma));
85 vertex(0,1,1,-Djmn(0.5, 0.5,-0.5,phi,theta,gamma));
86 vertex(1,0,0, Djmn(0.5,-0.5, 0.5,phi,theta,gamma));
87 vertex(1,1,1,-Djmn(0.5,-0.5,-0.5,phi,theta,gamma));
88 vertex(0,0,1, 0.0);
89 vertex(0,1,0, 0.0);
90 vertex(1,0,1, 0.0);
91 vertex(1,1,0, 0.0);
92 return ;
93
94}
EvtComplex Djmn(int j, int m, int n, double phi, double theta, double gamma)
Definition: EvtHelSys.cc:151
**********Class see also m_nmax DOUBLE PRECISION m_amel DOUBLE PRECISION m_x2 DOUBLE PRECISION m_alfinv DOUBLE PRECISION m_Xenph INTEGER m_KeyWtm INTEGER m_idyfs DOUBLE PRECISION m_zini DOUBLE PRECISION m_q2 DOUBLE PRECISION m_Wt_KF DOUBLE PRECISION m_WtCut INTEGER m_KFfin *COMMON c_KarLud $ !Input CMS energy[GeV] $ !CMS energy after beam spread beam strahlung[GeV] $ !Beam energy spread[GeV] $ !z boost due to beam spread $ !electron beam mass *ff pair spectrum $ !minimum v
Definition: KarLud.h:35
void vertex(const EvtComplex &amp)
Definition: EvtDecayAmp.hh:37
EvtId * getDaugs()
Definition: EvtDecayBase.hh:65
EvtVector4R getP4Lab()
Definition: EvtParticle.cc:685
const EvtVector4R & getP4() const
Definition: EvtParticle.cc:121
EvtParticle * getDaug(int i)
Definition: EvtParticle.cc:85
double initializePhaseSpace(int numdaughter, EvtId *daughters, double poleSize=-1., int whichTwo1=0, int whichTwo2=1)

◆ getName()

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

Implements EvtDecayBase.

Definition at line 39 of file EvtSPL.cc.

39 {
40
41 model_name="SPL";
42
43}

◆ init() [1/2]

void EvtSPL::init ( )
virtual

Reimplemented from EvtDecayBase.

Definition at line 57 of file EvtSPL.cc.

57 {
58 checkNDaug(2);
62}
void checkSpinDaughter(int d1, EvtSpinType::spintype sp)
void checkSpinParent(EvtSpinType::spintype sp)
void checkNDaug(int d1, int d2=-1)

◆ init() [2/2]

void EvtSPL::init ( int  ,
double *   
)

◆ initProbMax()

void EvtSPL::initProbMax ( )
virtual

Reimplemented from EvtDecayBase.

Definition at line 52 of file EvtSPL.cc.

52 {
53 double ProbMax=4.;
54 setProbMax(ProbMax);
55}
void setProbMax(double prbmx)

Member Data Documentation

◆ alpha

double EvtSPL::alpha

Definition at line 44 of file EvtSPL.hh.

◆ u

double EvtSPL::u

Definition at line 45 of file EvtSPL.hh.


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