BOSS 7.0.4
BESIII Offline Software System
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Public Member Functions | List of all members
EvtSVSNONCPEIGEN Class Reference

#include <EvtSVSNONCPEIGEN.hh>

+ Inheritance diagram for EvtSVSNONCPEIGEN:

Public Member Functions

 EvtSVSNONCPEIGEN ()
 
virtual ~EvtSVSNONCPEIGEN ()
 
void getName (std::string &name)
 
EvtDecayBase * clone ()
 
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 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)
 
- 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 EvtSVSNONCPEIGEN.hh.

Constructor & Destructor Documentation

◆ EvtSVSNONCPEIGEN()

EvtSVSNONCPEIGEN::EvtSVSNONCPEIGEN ( )
inline

Definition at line 32 of file EvtSVSNONCPEIGEN.hh.

32{}

Referenced by clone().

◆ ~EvtSVSNONCPEIGEN()

EvtSVSNONCPEIGEN::~EvtSVSNONCPEIGEN ( )
virtual

Definition at line 35 of file EvtSVSNONCPEIGEN.cc.

35{}

Member Function Documentation

◆ clone()

EvtDecayBase * EvtSVSNONCPEIGEN::clone ( )
virtual

Implements EvtDecayBase.

Definition at line 44 of file EvtSVSNONCPEIGEN.cc.

44 {
45
46 return new EvtSVSNONCPEIGEN;
47
48}

◆ decay()

void EvtSVSNONCPEIGEN::decay ( EvtParticle *  p)
virtual

Implements EvtDecayBase.

Definition at line 84 of file EvtSVSNONCPEIGEN.cc.

84 {
85
86 //added by Lange Jan4,2000
87 static EvtId B0=EvtPDL::getId("B0");
88 static EvtId B0B=EvtPDL::getId("anti-B0");
89
90 double t;
91 EvtId other_b;
92 EvtId daugs[2];
93
94 // MB: flip selects the final of the decay
95 int flip = ((p->getId() == B0) ? 0 : 1);
96 daugs[0]=getDaug(0);
97 daugs[1]=getDaug(1);
98 p->initializePhaseSpace(2, daugs);
99
100 EvtCPUtil::OtherB(p,t,other_b,0.5);
101
102 EvtComplex amp;
103 double dmt2 = (_dm * t) / (2 * EvtConst::c);
104 EvtComplex ePlusIPhi(cos(_phickm), sin(_phickm));
105 EvtComplex eMinusIPhi(cos(-_phickm), -sin(_phickm));
106
107 // flip == 0 : D-rho+
108 // flip == 1 : D+rho-
109
110 if (!flip) {
111 if (other_b==B0B){
112 // At t=0 we have a B0
113 amp = cos(dmt2)*_A_f + eMinusIPhi*EvtComplex(0.0,sin(dmt2))*_Abar_f;
114 }
115 if (other_b==B0){
116 // At t=0 we have a B0bar
117 amp = ePlusIPhi*EvtComplex(0.0,sin(dmt2))*_A_f + cos(dmt2)*_Abar_f;
118 }
119 }
120 else{
121 if (other_b==B0B){
122 // At t=0 we have a B0
123 amp = cos(dmt2)*_A_fbar + eMinusIPhi*EvtComplex(0.0,sin(dmt2))*_Abar_fbar;
124 }
125 if (other_b==B0){
126 // At t=0 we have a B0bar
127 amp = ePlusIPhi*EvtComplex(0.0,sin(dmt2))*_A_fbar + cos(dmt2)*_Abar_fbar;
128 }
129 }
130
131
132 EvtParticle *v;
133 v= p->getDaug(0);
134
135 EvtVector4R momv = p->getDaug(0)->getP4();
136 EvtVector4R moms = p->getDaug(1)->getP4();
137 EvtVector4R p4_parent=momv+moms;
138
139 double norm=momv.mass()/(momv.d3mag()*p->mass());
140
141 vertex(0,amp*norm*p4_parent*(v->epsParent(0)));
142 vertex(1,amp*norm*p4_parent*(v->epsParent(1)));
143 vertex(2,amp*norm*p4_parent*(v->epsParent(2)));
144
145 return ;
146}
sin
double sin(const BesAngle a)
Definition: InstallArea/include/MdcGeom/MdcGeom/BesAngle.h:210
cos
double cos(const BesAngle a)
Definition: InstallArea/include/MdcGeom/MdcGeom/BesAngle.h:213
v
**********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
EvtCPUtil::OtherB
static void OtherB(EvtParticle *p, double &t, EvtId &otherb)
Definition: EvtCPUtil.cc:229
EvtConst::c
static const double c
Definition: EvtConst.hh:32
EvtDecayAmp::vertex
void vertex(const EvtComplex &amp)
Definition: EvtDecayAmp.hh:37
EvtDecayBase::getDaug
EvtId getDaug(int i)
Definition: EvtDecayBase.hh:66
EvtId
Definition: EvtId.hh:27
EvtPDL::getId
static EvtId getId(const std::string &name)
Definition: EvtPDL.cc:287
EvtParticle::getId
EvtId getId() const
Definition: EvtParticle.cc:113
EvtParticle::getP4
const EvtVector4R & getP4() const
Definition: EvtParticle.cc:121
EvtParticle::getDaug
EvtParticle * getDaug(int i)
Definition: EvtParticle.cc:85
EvtParticle::mass
double mass() const
Definition: EvtParticle.cc:127
EvtParticle::initializePhaseSpace
double initializePhaseSpace(int numdaughter, EvtId *daughters, double poleSize=-1., int whichTwo1=0, int whichTwo2=1)
Definition: EvtParticle.cc:1071
EvtVector4R::mass
double mass() const
Definition: EvtVector4R.cc:39
EvtVector4R::d3mag
double d3mag() const
Definition: EvtVector4R.cc:186
t
int t()
Definition: t.c:1

◆ getName()

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

Implements EvtDecayBase.

Definition at line 37 of file EvtSVSNONCPEIGEN.cc.

37 {
38
39 model_name="SVS_NONCPEIGEN";
40
41}

◆ init()

void EvtSVSNONCPEIGEN::init ( )
virtual

Reimplemented from EvtDecayBase.

Definition at line 50 of file EvtSVSNONCPEIGEN.cc.

50 {
51
52 // check that there are 11 arguments
53 checkNArg(11,7);
54 checkNDaug(2);
55
56 checkSpinDaughter(0,EvtSpinType::VECTOR);
57 checkSpinDaughter(1,EvtSpinType::SCALAR);
58
59 _dm=getArg(1);
60 _phickm=2*getArg(0)+getArg(2);
61
62 _A_f=EvtComplex(getArg(3)*cos(getArg(4)),getArg(3)*sin(getArg(4)));
63 _Abar_f=EvtComplex(getArg(5)*cos(getArg(6)),getArg(5)*sin(getArg(6)));
64
65 _A_fbar=_Abar_f;
66 _Abar_fbar=_A_f;
67
68 if (getNArg()==11){
69 _A_fbar=EvtComplex(getArg(7)*cos(getArg(8)),getArg(7)*sin(getArg(8)));
70 _Abar_fbar=EvtComplex(getArg(9)*cos(getArg(10)),getArg(9)*sin(getArg(10)));
71 }
72}
EvtDecayBase::checkSpinDaughter
void checkSpinDaughter(int d1, EvtSpinType::spintype sp)
Definition: EvtDecayBase.cc:533
EvtDecayBase::getArg
double getArg(int j)
Definition: EvtDecayBase.cc:564
EvtDecayBase::checkNDaug
void checkNDaug(int d1, int d2=-1)
Definition: EvtDecayBase.cc:504
EvtDecayBase::checkNArg
void checkNArg(int a1, int a2=-1, int a3=-1, int a4=-1)
Definition: EvtDecayBase.cc:482

◆ initProbMax()

void EvtSVSNONCPEIGEN::initProbMax ( )
virtual

Reimplemented from EvtDecayBase.

Definition at line 74 of file EvtSVSNONCPEIGEN.cc.

74 {
75 double theProbMax =
76 abs(_A_f) * abs(_A_f) +
77 abs(_Abar_f) * abs(_Abar_f) +
78 abs(_A_fbar) * abs(_A_fbar) +
79 abs(_Abar_fbar) * abs(_Abar_fbar);
80
81 setProbMax(theProbMax);
82}
EvtDecayBase::setProbMax
void setProbMax(double prbmx)
Definition: EvtDecayBase.cc:297
The documentation for this class was generated from the following files: