Herwig++
2.7.0
|
This class is designed for the decay of a pseudovector meson to a spin-1 particle, either a vector meson or a photon, and a pseudoscalar meson. More...
#include <PVectorMesonVectorPScalarDecayer.h>
Public Member Functions | |
PVectorMesonVectorPScalarDecayer () | |
Default constructor. | |
virtual int | modeNumber (bool &cc, tcPDPtr parent, const tPDVector &children) const |
Which of the possible decays is required. | |
double | me2 (const int ichan, const Particle &part, const ParticleVector &decay, MEOption meopt) const |
Return the matrix element squared for a given mode and phase-space channel. | |
virtual void | dataBaseOutput (ofstream &os, bool header) const |
Output the setup information for the particle database. | |
bool | twoBodyMEcode (const DecayMode &dm, int &mecode, double &coupling) const |
Specify the ![]() | |
Functions used by the persistent I/O system. | |
void | persistentOutput (PersistentOStream &os) const |
Function used to write out object persistently. | |
void | persistentInput (PersistentIStream &is, int version) |
Function used to read in object persistently. | |
Static Public Member Functions | |
static void | Init () |
Standard Init function used to initialize the interfaces. | |
Protected Member Functions | |
Clone Methods. | |
virtual IBPtr | clone () const |
Make a simple clone of this object. | |
virtual IBPtr | fullclone () const |
Make a clone of this object, possibly modifying the cloned object to make it sane. | |
Standard Interfaced functions. | |
virtual void | doinit () |
Initialize this object after the setup phase before saving and EventGenerator to disk. | |
virtual void | doinitrun () |
Initialize this object to the begining of the run phase. | |
Private Member Functions | |
PVectorMesonVectorPScalarDecayer & | operator= (const PVectorMesonVectorPScalarDecayer &) |
Private and non-existent assignment operator. | |
Private Attributes | |
vector< InvEnergy > | _coupling |
Coupling for a decay. | |
vector< int > | _incoming |
PDG codes for the incoming particles. | |
vector< int > | _outgoingV |
PDG codes for the outgoing vector. | |
vector< int > | _outgoingP |
PDG codes for the outgoing pseudoscalar mesons. | |
vector< double > | _maxweight |
maximum weight for a decay | |
unsigned int | _initsize |
Initial size of the vectors. | |
RhoDMatrix | _rho |
Spin density matrix. | |
vector < Helicity::LorentzPolarizationVector > | _vectors [2] |
Polarization vectors for the incoming and outgoing vector mesons. | |
Static Private Attributes | |
static ClassDescription < PVectorMesonVectorPScalarDecayer > | initPVectorMesonVectorPScalarDecayer |
Describe a concrete class with persistent data. |
This class is designed for the decay of a pseudovector meson to a spin-1 particle, either a vector meson or a photon, and a pseudoscalar meson.
The current for the decay is
where is the polarization vector of the decaying pseudo-vector meson,
is the polarization vector of the outgoing vector meson,
is the momentum of the decaying particle and
is the momentum of the outgoing vector meson.
Definition at line 41 of file PVectorMesonVectorPScalarDecayer.h.
virtual IBPtr Herwig::PVectorMesonVectorPScalarDecayer::clone | ( | ) | const [inline, protected, virtual] |
Make a simple clone of this object.
Implements ThePEG::InterfacedBase.
Definition at line 118 of file PVectorMesonVectorPScalarDecayer.h.
virtual void Herwig::PVectorMesonVectorPScalarDecayer::dataBaseOutput | ( | ofstream & | os, |
bool | header | ||
) | const [virtual] |
Output the setup information for the particle database.
os | The stream to output the information to |
header | Whether or not to output the information for MySQL |
Reimplemented from Herwig::DecayIntegrator.
virtual void Herwig::PVectorMesonVectorPScalarDecayer::doinit | ( | ) | [protected, virtual] |
Initialize this object after the setup phase before saving and EventGenerator to disk.
InitException | if object could not be initialized properly. |
Reimplemented from ThePEG::InterfacedBase.
virtual IBPtr Herwig::PVectorMesonVectorPScalarDecayer::fullclone | ( | ) | const [inline, protected, virtual] |
Make a clone of this object, possibly modifying the cloned object to make it sane.
Reimplemented from ThePEG::InterfacedBase.
Definition at line 124 of file PVectorMesonVectorPScalarDecayer.h.
double Herwig::PVectorMesonVectorPScalarDecayer::me2 | ( | const int | ichan, |
const Particle & | part, | ||
const ParticleVector & | decay, | ||
MEOption | meopt | ||
) | const [virtual] |
Return the matrix element squared for a given mode and phase-space channel.
ichan | The channel we are calculating the matrix element for. |
part | The decaying Particle. |
decay | The particles produced in the decay. |
meopt | Option for the calculation of the matrix element |
Implements Herwig::DecayIntegrator.
virtual int Herwig::PVectorMesonVectorPScalarDecayer::modeNumber | ( | bool & | cc, |
tcPDPtr | parent, | ||
const tPDVector & | children | ||
) | const [virtual] |
Which of the possible decays is required.
cc | Is this mode the charge conjugate |
parent | The decaying particle |
children | The decay products |
Implements Herwig::DecayIntegrator.
void Herwig::PVectorMesonVectorPScalarDecayer::persistentInput | ( | PersistentIStream & | is, |
int | version | ||
) |
Function used to read in object persistently.
is | the persistent input stream read from. |
version | the version number of the object when written. |
Reimplemented from Herwig::DecayIntegrator.
void Herwig::PVectorMesonVectorPScalarDecayer::persistentOutput | ( | PersistentOStream & | os | ) | const |
Function used to write out object persistently.
os | the persistent output stream written to. |
Reimplemented from Herwig::DecayIntegrator.
bool Herwig::PVectorMesonVectorPScalarDecayer::twoBodyMEcode | ( | const DecayMode & | dm, |
int & | mecode, | ||
double & | coupling | ||
) | const [virtual] |
Specify the matrix element to be used in the running width calculation.
dm | The DecayMode |
mecode | The code for the matrix element as described in the GenericWidthGenerator class, in this case 4. |
coupling | The coupling for the matrix element. |
Reimplemented from Herwig::DecayIntegrator.