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Herwig
7.3.0
Decay
HeavyMeson
HQETStrongDecayer.h
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// -*- C++ -*-
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#ifndef Herwig_HQETStrongDecayer_H
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#define Herwig_HQETStrongDecayer_H
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//
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// This is the declaration of the HQETStrongDecayer class.
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//
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#include "Herwig/Decay/DecayIntegrator.h"
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#include "Herwig/PDT/HeavyMesonWidthGenerator.fh"
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#include "Herwig/Decay/PhaseSpaceMode.h"
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#include "ThePEG/Helicity/LorentzPolarizationVector.h"
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#include "ThePEG/Helicity/LorentzRank3Tensor.h"
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namespace
Herwig
{
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using namespace
ThePEG
;
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class
HQETStrongDecayer
:
public
DecayIntegrator
{
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friend
class
HeavyMesonWidthGenerator
;
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public
:
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HQETStrongDecayer
();
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virtual
int
modeNumber
(
bool
& cc,
tcPDPtr
parent,
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const
tPDVector
& children)
const
;
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double
me2
(
const
int
ichan,
const
Particle
& part,
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const
tPDVector
&
outgoing
,
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const
vector<Lorentz5Momentum> & momenta,
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MEOption
meopt)
const
;
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virtual
void
constructSpinInfo
(
const
Particle
& part,
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ParticleVector
outgoing
)
const
;
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bool
twoBodyMEcode
(
const
DecayMode
& dm,
int
& mecode,
double
& coupling)
const
;
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virtual
void
dataBaseOutput
(ofstream & os,
bool
header)
const
;
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public
:
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void
persistentOutput
(
PersistentOStream
& os)
const
;
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void
persistentInput
(
PersistentIStream
& is,
int
version);
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static
void
Init
();
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protected
:
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virtual
IBPtr
clone
()
const
;
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virtual
IBPtr
fullclone
()
const
;
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protected
:
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virtual
void
doinit
();
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virtual
void
doinitrun
();
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private
:
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HQETStrongDecayer
&
operator=
(
const
HQETStrongDecayer
&) =
delete
;
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public
:
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string
setUpDecayMode
(
string
arg);
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private
:
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Energy
fPi_
;
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double
g_
;
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double
gp_
;
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double
h_
;
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double
hp_
;
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double
k_
;
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double
kp_
;
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double
gtilde_
;
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double
psiL_
;
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double
psiS_
;
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double
deltaEta_
;
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Energy
Lambda_
;
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vector<long>
incoming_
;
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vector<pair<long,long> >
outgoing_
;
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vector<double>
maxWeight_
;
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mutable
RhoDMatrix
rho_
;
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mutable
vector<Helicity::LorentzPolarizationVector>
vecIn_
;
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mutable
vector<Helicity::LorentzTensor<double> >
tensorIn_
;
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mutable
vector<Helicity::LorentzRank3Tensor<double> >
spin3In_
;
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mutable
vector<Helicity::LorentzPolarizationVector>
vecOut_
;
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};
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}
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#endif
/* Herwig_HQETStrongDecayer_H */
Herwig::DecayIntegrator
Main class for Decayers implementing multi-channel phase space integration.
Definition:
DecayIntegrator.h:60
Herwig::DecayIntegrator::MEOption
MEOption
Enum for the matrix element option.
Definition:
DecayIntegrator.h:72
Herwig::HQETStrongDecayer
The HQETStrongDecayer class implements the strong decays of excited heavy, i.e.
Definition:
HQETStrongDecayer.h:25
Herwig::HQETStrongDecayer::twoBodyMEcode
bool twoBodyMEcode(const DecayMode &dm, int &mecode, double &coupling) const
Specify the matrix element to be used in the running width calculation.
Herwig::HQETStrongDecayer::k_
double k_
Coupling for decays from the multiplet.
Definition:
HQETStrongDecayer.h:194
Herwig::HQETStrongDecayer::gtilde_
double gtilde_
Coupling for decays from the 2S multiplet.
Definition:
HQETStrongDecayer.h:204
Herwig::HQETStrongDecayer::doinitrun
virtual void doinitrun()
Initialize this object to the begining of the run phase.
Herwig::HQETStrongDecayer::dataBaseOutput
virtual void dataBaseOutput(ofstream &os, bool header) const
Output the setup information for the particle database.
Herwig::HQETStrongDecayer::outgoing_
vector< pair< long, long > > outgoing_
the PDG codes for outgoing heavy meson
Definition:
HQETStrongDecayer.h:241
Herwig::HQETStrongDecayer::clone
virtual IBPtr clone() const
Make a simple clone of this object.
Herwig::HQETStrongDecayer::me2
double me2(const int ichan, const Particle &part, const tPDVector &outgoing, const vector< Lorentz5Momentum > &momenta, MEOption meopt) const
Return the matrix element squared for a given mode and phase-space channel.
Herwig::HQETStrongDecayer::rho_
RhoDMatrix rho_
Storage of wavefunctions etx.
Definition:
HQETStrongDecayer.h:256
Herwig::HQETStrongDecayer::maxWeight_
vector< double > maxWeight_
the maximum weight for the decay
Definition:
HQETStrongDecayer.h:246
Herwig::HQETStrongDecayer::vecIn_
vector< Helicity::LorentzPolarizationVector > vecIn_
Storage of polarization vectors of the decaying particle.
Definition:
HQETStrongDecayer.h:261
Herwig::HQETStrongDecayer::persistentInput
void persistentInput(PersistentIStream &is, int version)
Function used to read in object persistently.
Herwig::HQETStrongDecayer::vecOut_
vector< Helicity::LorentzPolarizationVector > vecOut_
Storage of polarization vectors of the decay product.
Definition:
HQETStrongDecayer.h:276
Herwig::HQETStrongDecayer::spin3In_
vector< Helicity::LorentzRank3Tensor< double > > spin3In_
Storage of polarization tensors of the decaying particle.
Definition:
HQETStrongDecayer.h:271
Herwig::HQETStrongDecayer::modeNumber
virtual int modeNumber(bool &cc, tcPDPtr parent, const tPDVector &children) const
Which of the possible decays is required.
Herwig::HQETStrongDecayer::deltaEta_
double deltaEta_
mixing for isospin violating decays
Definition:
HQETStrongDecayer.h:219
Herwig::HQETStrongDecayer::psiL_
double psiL_
D_1 mixing angle (up and down)
Definition:
HQETStrongDecayer.h:209
Herwig::HQETStrongDecayer::incoming_
vector< long > incoming_
Particles etc for thye different modes.
Definition:
HQETStrongDecayer.h:236
Herwig::HQETStrongDecayer::h_
double h_
Coupling for decays from the multiplet.
Definition:
HQETStrongDecayer.h:184
Herwig::HQETStrongDecayer::setUpDecayMode
string setUpDecayMode(string arg)
Set the parameters for a decay mode.
Herwig::HQETStrongDecayer::fullclone
virtual IBPtr fullclone() const
Make a clone of this object, possibly modifying the cloned object to make it sane.
Herwig::HQETStrongDecayer::operator=
HQETStrongDecayer & operator=(const HQETStrongDecayer &)=delete
The assignment operator is private and must never be called.
Herwig::HQETStrongDecayer::psiS_
double psiS_
D_1 mixing angle (strange)
Definition:
HQETStrongDecayer.h:214
Herwig::HQETStrongDecayer::Init
static void Init()
The standard Init function used to initialize the interfaces.
Herwig::HQETStrongDecayer::tensorIn_
vector< Helicity::LorentzTensor< double > > tensorIn_
Storage of polarization tensors of the decaying particle.
Definition:
HQETStrongDecayer.h:266
Herwig::HQETStrongDecayer::gp_
double gp_
Coupling for decays within the multiplet.
Definition:
HQETStrongDecayer.h:179
Herwig::HQETStrongDecayer::HQETStrongDecayer
HQETStrongDecayer()
The default constructor.
Herwig::HQETStrongDecayer::fPi_
Energy fPi_
Coupings for the decays.
Definition:
HQETStrongDecayer.h:169
Herwig::HQETStrongDecayer::g_
double g_
Coupling for decays within the multiplet.
Definition:
HQETStrongDecayer.h:174
Herwig::HQETStrongDecayer::persistentOutput
void persistentOutput(PersistentOStream &os) const
Function used to write out object persistently.
Herwig::HQETStrongDecayer::hp_
double hp_
Coupling for decays from the multiplet.
Definition:
HQETStrongDecayer.h:189
Herwig::HQETStrongDecayer::Lambda_
Energy Lambda_
A momentum scale characterising the convergence of the derivative expansion.
Definition:
HQETStrongDecayer.h:226
Herwig::HQETStrongDecayer::constructSpinInfo
virtual void constructSpinInfo(const Particle &part, ParticleVector outgoing) const
Construct the SpinInfos for the particles produced in the decay.
Herwig::HQETStrongDecayer::doinit
virtual void doinit()
Initialize this object after the setup phase before saving and EventGenerator to disk.
Herwig::HQETStrongDecayer::kp_
double kp_
Coupling for decays from the multiplet.
Definition:
HQETStrongDecayer.h:199
Herwig::HeavyMesonWidthGenerator
The HeavyMesonWidthGenerator class calculates the running width for heavy mesons.
Definition:
HeavyMesonWidthGenerator.h:23
ThePEG::DecayMode
ThePEG::Particle
ThePEG::PersistentIStream
ThePEG::PersistentOStream
ThePEG::RhoDMatrix
Herwig
-*- C++ -*-
Definition:
BasicConsistency.h:17
ThePEG::Helicity::outgoing
outgoing
ThePEG
ThePEG::IBPtr
ThePEG::Ptr< InterfacedBase >::pointer IBPtr
ThePEG::tPDVector
vector< tPDPtr > tPDVector
ThePEG::ParticleVector
vector< PPtr > ParticleVector
ThePEG::tcPDPtr
ThePEG::Ptr< ParticleData >::transient_const_pointer tcPDPtr
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