BOSS 7.1.1
BESIII Offline Software System
Loading...
Searching...
No Matches
EvtSVSCP Class Reference

#include <EvtSVSCP.hh>

+ Inheritance diagram for EvtSVSCP:

Public Member Functions

 EvtSVSCP ()
 
virtual ~EvtSVSCP ()
 
void getName (std::string &name)
 
EvtDecayBaseclone ()
 
void initProbMax ()
 
void init ()
 
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 ()
 
- Public Member Functions inherited from EvtDecayBase
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 ()
 

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 28 of file EvtSVSCP.hh.

Constructor & Destructor Documentation

◆ EvtSVSCP()

EvtSVSCP::EvtSVSCP ( )
inline

Definition at line 32 of file EvtSVSCP.hh.

32{}

Referenced by clone().

◆ ~EvtSVSCP()

EvtSVSCP::~EvtSVSCP ( )
virtual

Definition at line 34 of file EvtSVSCP.cc.

34{}

Member Function Documentation

◆ clone()

EvtDecayBase * EvtSVSCP::clone ( )
virtual

Implements EvtDecayBase.

Definition at line 43 of file EvtSVSCP.cc.

43 {
44
45 return new EvtSVSCP;
46
47}

◆ decay()

void EvtSVSCP::decay ( EvtParticle * p)
virtual

Implements EvtDecayBase.

Definition at line 74 of file EvtSVSCP.cc.

74 {
75
76 //added by Lange Jan4,2000
77 static EvtId B0=EvtPDL::getId("B0");
78 static EvtId B0B=EvtPDL::getId("anti-B0");
79
82 v = p->getDaug(0);
83 EvtVector4R momv = v->getP4();
84 EvtVector4R moms = p->getDaug(1)->getP4();
85 double massv = v->mass();
86 double t;
87 EvtId other_b;
88
89 EvtCPUtil::OtherB(p,t,other_b);
90
91 EvtComplex amp;
92
93 EvtComplex A,Abar;
94
96 Abar=EvtComplex(getArg(5)*cos(getArg(6)),getArg(5)*sin(getArg(6)));
97
98 if (other_b==B0B){
99 amp=A*cos(getArg(1)*t/(2*EvtConst::c))+
100 EvtComplex(cos(-2.0*getArg(0)),sin(-2.0*getArg(0)))*
101 getArg(2)*EvtComplex(0.0,1.0)*Abar*sin(getArg(1)*t/(2*EvtConst::c));
102 }
103 if (other_b==B0){
104 amp=A*EvtComplex(cos(2.0*getArg(0)),sin(2.0*getArg(0)))*
105 EvtComplex(0.0,1.0)*sin(getArg(1)*t/(2*EvtConst::c))+
106 getArg(2)*Abar*cos(getArg(1)*t/(2*EvtConst::c));
107 }
108
109 EvtVector4R p4_parent;
110
111 p4_parent=momv+moms;
112
113 double norm=massv/(momv.d3mag()*p4_parent.mass());
114
115 vertex(0,amp*norm*p4_parent*(v->epsParent(0)));
116 vertex(1,amp*norm*p4_parent*(v->epsParent(1)));
117 vertex(2,amp*norm*p4_parent*(v->epsParent(2)));
118
119 return ;
120}
double sin(const BesAngle a)
Definition BesAngle.h:210
double cos(const BesAngle a)
Definition BesAngle.h:213
**********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
TTree * t
Definition binning.cxx:23
static void OtherB(EvtParticle *p, double &t, EvtId &otherb)
Definition EvtCPUtil.cc:229
static const double c
Definition EvtConst.hh:32
void vertex(const EvtComplex &amp)
double getArg(int j)
EvtId * getDaugs()
Definition EvtId.hh:27
static EvtId getId(const std::string &name)
Definition EvtPDL.cc:287
const EvtVector4R & getP4() const
EvtParticle * getDaug(int i)
double initializePhaseSpace(int numdaughter, EvtId *daughters, double poleSize=-1., int whichTwo1=0, int whichTwo2=1)
double mass() const
double d3mag() const

◆ getName()

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

Implements EvtDecayBase.

Definition at line 36 of file EvtSVSCP.cc.

36 {
37
38 model_name="SVS_CP";
39
40}

◆ init()

void EvtSVSCP::init ( )
virtual

Reimplemented from EvtDecayBase.

Definition at line 49 of file EvtSVSCP.cc.

49 {
50
51 // check that there are 7 arguments
52 checkNArg(7);
53 checkNDaug(2);
54
56
59
60
61}
void checkSpinDaughter(int d1, EvtSpinType::spintype sp)
void checkSpinParent(EvtSpinType::spintype sp)
void checkNDaug(int d1, int d2=-1)
void checkNArg(int a1, int a2=-1, int a3=-1, int a4=-1)

◆ initProbMax()

void EvtSVSCP::initProbMax ( )
virtual

Reimplemented from EvtDecayBase.

Definition at line 64 of file EvtSVSCP.cc.

64 {
65
66 //This is probably not quite right, but it should do as a start...
67 //Anders
68
69 setProbMax(2*(getArg(3)*getArg(3)+getArg(5)*getArg(5)));
70
71}
void setProbMax(double prbmx)

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