herwig
is hosted by
Hepforge
,
IPPP Durham
Herwig
7.3.0
Decay
Baryon
Baryon1MesonDecayerBase.h
1
// -*- C++ -*-
2
#ifndef HERWIG_Baryon1MesonDecayerBase_H
3
#define HERWIG_Baryon1MesonDecayerBase_H
4
//
5
// This is the declaration of the Baryon1MesonDecayerBase class.
6
//
7
#include "Herwig/Decay/DecayIntegrator.h"
8
#include "Herwig/PDT/BaryonWidthGenerator.fh"
9
#include "Herwig/Decay/PhaseSpaceMode.h"
10
#include "ThePEG/Helicity/LorentzSpinor.h"
11
#include "ThePEG/Helicity/LorentzSpinorBar.h"
12
#include "ThePEG/Helicity/LorentzRSSpinor.h"
13
#include "ThePEG/Helicity/LorentzRSSpinorBar.h"
14
#include "Baryon1MesonDecayerBase.fh"
15
16
namespace
Herwig
{
17
using namespace
ThePEG
;
18
57
class
Baryon1MesonDecayerBase
:
public
DecayIntegrator
{
58
62
friend
class
BaryonWidthGenerator
;
63
64
public
:
65
66
76
double
me2
(
const
int
ichan,
const
Particle
& part,
77
const
tPDVector
&
outgoing
,
78
const
vector<Lorentz5Momentum> & momenta,
79
MEOption
meopt)
const
;
80
84
virtual
void
constructSpinInfo
(
const
Particle
& part,
85
ParticleVector
outgoing
)
const
;
86
95
virtual
bool
twoBodyMEcode
(
const
DecayMode
& dm,
int
& mecode,
96
double
& coupling)
const
;
97
103
virtual
void
dataBaseOutput
(ofstream & os,
bool
header)
const
;
104
105
protected
:
106
122
virtual
void
halfHalfScalarCoupling
(
int
imode
, Energy m0, Energy m1, Energy m2,
123
Complex
& A,
Complex
& B)
const
;
124
138
virtual
void
halfHalfVectorCoupling
(
int
imode
, Energy m0, Energy m1, Energy m2,
139
Complex
& A1,
Complex
& A2,
140
Complex
& B1,
Complex
& B2)
const
;
141
153
virtual
void
halfThreeHalfScalarCoupling
(
int
imode
, Energy m0, Energy m1, Energy m2,
154
Complex
& A,
Complex
& B)
const
;
155
171
virtual
void
halfThreeHalfVectorCoupling
(
int
imode
, Energy m0, Energy m1, Energy m2,
172
Complex
& A1,
Complex
& A2,
Complex
& A3,
173
Complex
& B1,
Complex
& B2,
Complex
& B3)
const
;
174
175
187
virtual
void
threeHalfHalfScalarCoupling
(
int
imode
, Energy m0, Energy m1, Energy m2,
188
Complex
& A,
Complex
& B)
const
;
189
205
virtual
void
threeHalfHalfVectorCoupling
(
int
imode
, Energy m0, Energy m1, Energy m2,
206
Complex
& A1,
Complex
& A2,
Complex
& A3,
207
Complex
& B1,
Complex
& B2,
Complex
& B3)
const
;
208
222
virtual
void
threeHalfThreeHalfScalarCoupling
(
int
imode
,Energy m0,Energy m1,Energy m2,
223
Complex
& A1,
Complex
& A2,
224
Complex
& B1,
Complex
& B2)
const
;
226
227
public
:
228
232
static
void
Init
();
233
234
private
:
235
249
double
halfHalfScalar
(
const
int
ichan,
const
Particle
& part,
250
const
tPDVector
&
outgoing
,
251
const
vector<Lorentz5Momentum> & momenta,
252
MEOption
meopt)
const
;
253
263
double
halfHalfVector
(
const
int
ichan,
const
Particle
& part,
264
const
tPDVector
&
outgoing
,
265
const
vector<Lorentz5Momentum> & momenta,
266
MEOption
meopt)
const
;
267
277
double
halfThreeHalfScalar
(
const
int
ichan,
const
Particle
& part,
278
const
tPDVector
&
outgoing
,
279
const
vector<Lorentz5Momentum> & momenta,
280
MEOption
meopt)
const
;
281
291
double
halfThreeHalfVector
(
const
int
ichan,
const
Particle
& part,
292
const
tPDVector
&
outgoing
,
293
const
vector<Lorentz5Momentum> & momenta,
294
MEOption
meopt)
const
;
295
305
double
threeHalfHalfScalar
(
const
int
ichan,
const
Particle
& part,
306
const
tPDVector
&
outgoing
,
307
const
vector<Lorentz5Momentum> & momenta,
308
MEOption
meopt)
const
;
309
319
double
threeHalfHalfVector
(
const
int
ichan,
const
Particle
& part,
320
const
tPDVector
&
outgoing
,
321
const
vector<Lorentz5Momentum> & momenta,
322
MEOption
meopt)
const
;
323
333
double
threeHalfThreeHalfScalar
(
const
int
ichan,
const
Particle
& part,
334
const
tPDVector
&
outgoing
,
335
const
vector<Lorentz5Momentum> & momenta,
336
MEOption
meopt)
const
;
338
339
private
:
340
344
Baryon1MesonDecayerBase
&
operator=
(
const
Baryon1MesonDecayerBase
&) =
delete
;
345
346
private
:
347
351
mutable
RhoDMatrix
_rho
;
352
356
mutable
vector<Helicity::LorentzSpinor<SqrtEnergy> >
_inHalf
;
357
361
mutable
vector<Helicity::LorentzSpinorBar<SqrtEnergy> >
_inHalfBar
;
362
366
mutable
vector<Helicity::LorentzRSSpinor<SqrtEnergy> >
_inThreeHalf
;
367
371
mutable
vector<Helicity::LorentzRSSpinorBar<SqrtEnergy> >
_inThreeHalfBar
;
372
376
mutable
vector<Helicity::LorentzPolarizationVector>
_inVec
;
377
};
378
379
}
380
381
382
#endif
/* HERWIG_Baryon1MesonDecayerBase_H */
Herwig::Baryon1MesonDecayerBase
The Baryon1MesonDecayerBase class is the base class for the decay of a baryon to another baryon and a...
Definition:
Baryon1MesonDecayerBase.h:57
Herwig::Baryon1MesonDecayerBase::dataBaseOutput
virtual void dataBaseOutput(ofstream &os, bool header) const
Output the setup information for the particle database.
Herwig::Baryon1MesonDecayerBase::halfHalfScalar
double halfHalfScalar(const int ichan, const Particle &part, const tPDVector &outgoing, const vector< Lorentz5Momentum > &momenta, MEOption meopt) const
Matrix Element Calculation Members.
Herwig::Baryon1MesonDecayerBase::_inThreeHalf
vector< Helicity::LorentzRSSpinor< SqrtEnergy > > _inThreeHalf
Spin- spinor.
Definition:
Baryon1MesonDecayerBase.h:366
Herwig::Baryon1MesonDecayerBase::threeHalfHalfVectorCoupling
virtual void threeHalfHalfVectorCoupling(int imode, Energy m0, Energy m1, Energy m2, Complex &A1, Complex &A2, Complex &A3, Complex &B1, Complex &B2, Complex &B3) const
Couplings for spin- to spin- and a vector.
Herwig::Baryon1MesonDecayerBase::_inThreeHalfBar
vector< Helicity::LorentzRSSpinorBar< SqrtEnergy > > _inThreeHalfBar
Spin- barred spinor.
Definition:
Baryon1MesonDecayerBase.h:371
Herwig::Baryon1MesonDecayerBase::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::Baryon1MesonDecayerBase::threeHalfHalfScalar
double threeHalfHalfScalar(const int ichan, const Particle &part, const tPDVector &outgoing, const vector< Lorentz5Momentum > &momenta, MEOption meopt) const
Matrix element for spin- to spin- and a scalar.
Herwig::Baryon1MesonDecayerBase::halfHalfScalarCoupling
virtual void halfHalfScalarCoupling(int imode, Energy m0, Energy m1, Energy m2, Complex &A, Complex &B) const
Coupling Members.
Herwig::Baryon1MesonDecayerBase::threeHalfThreeHalfScalar
double threeHalfThreeHalfScalar(const int ichan, const Particle &part, const tPDVector &outgoing, const vector< Lorentz5Momentum > &momenta, MEOption meopt) const
Matrix element for spin- to spin- and a scalar.
Herwig::Baryon1MesonDecayerBase::halfThreeHalfVector
double halfThreeHalfVector(const int ichan, const Particle &part, const tPDVector &outgoing, const vector< Lorentz5Momentum > &momenta, MEOption meopt) const
Matrix element for spin- to spin- and a vector.
Herwig::Baryon1MesonDecayerBase::threeHalfHalfVector
double threeHalfHalfVector(const int ichan, const Particle &part, const tPDVector &outgoing, const vector< Lorentz5Momentum > &momenta, MEOption meopt) const
Matrix element for spin- to spin- and a vector.
Herwig::Baryon1MesonDecayerBase::Init
static void Init()
Standard Init function used to initialize the interfaces.
Herwig::Baryon1MesonDecayerBase::operator=
Baryon1MesonDecayerBase & operator=(const Baryon1MesonDecayerBase &)=delete
Private and non-existent assignment operator.
Herwig::Baryon1MesonDecayerBase::halfThreeHalfScalar
double halfThreeHalfScalar(const int ichan, const Particle &part, const tPDVector &outgoing, const vector< Lorentz5Momentum > &momenta, MEOption meopt) const
Matrix element for spin- to spin- and a scalar.
Herwig::Baryon1MesonDecayerBase::halfThreeHalfVectorCoupling
virtual void halfThreeHalfVectorCoupling(int imode, Energy m0, Energy m1, Energy m2, Complex &A1, Complex &A2, Complex &A3, Complex &B1, Complex &B2, Complex &B3) const
Couplings for spin- to spin- and a vector.
Herwig::Baryon1MesonDecayerBase::halfThreeHalfScalarCoupling
virtual void halfThreeHalfScalarCoupling(int imode, Energy m0, Energy m1, Energy m2, Complex &A, Complex &B) const
Couplings for spin- to spin- and a scalar.
Herwig::Baryon1MesonDecayerBase::_inVec
vector< Helicity::LorentzPolarizationVector > _inVec
Polarization vector.
Definition:
Baryon1MesonDecayerBase.h:376
Herwig::Baryon1MesonDecayerBase::halfHalfVector
double halfHalfVector(const int ichan, const Particle &part, const tPDVector &outgoing, const vector< Lorentz5Momentum > &momenta, MEOption meopt) const
Matrix element for spin- to spin- and a vector.
Herwig::Baryon1MesonDecayerBase::twoBodyMEcode
virtual bool twoBodyMEcode(const DecayMode &dm, int &mecode, double &coupling) const
Specify the matrix element to be used in the running width calculation.
Herwig::Baryon1MesonDecayerBase::threeHalfHalfScalarCoupling
virtual void threeHalfHalfScalarCoupling(int imode, Energy m0, Energy m1, Energy m2, Complex &A, Complex &B) const
Couplings for spin- to spin- and a scalar.
Herwig::Baryon1MesonDecayerBase::_inHalfBar
vector< Helicity::LorentzSpinorBar< SqrtEnergy > > _inHalfBar
Spin- barred spinor.
Definition:
Baryon1MesonDecayerBase.h:361
Herwig::Baryon1MesonDecayerBase::_inHalf
vector< Helicity::LorentzSpinor< SqrtEnergy > > _inHalf
Spin- spinor.
Definition:
Baryon1MesonDecayerBase.h:356
Herwig::Baryon1MesonDecayerBase::_rho
RhoDMatrix _rho
Spin density matrx.
Definition:
Baryon1MesonDecayerBase.h:351
Herwig::Baryon1MesonDecayerBase::constructSpinInfo
virtual void constructSpinInfo(const Particle &part, ParticleVector outgoing) const
Construct the SpinInfos for the particles produced in the decay.
Herwig::Baryon1MesonDecayerBase::halfHalfVectorCoupling
virtual void halfHalfVectorCoupling(int imode, Energy m0, Energy m1, Energy m2, Complex &A1, Complex &A2, Complex &B1, Complex &B2) const
Couplings for spin- to spin- and a vector.
Herwig::Baryon1MesonDecayerBase::threeHalfThreeHalfScalarCoupling
virtual void threeHalfThreeHalfScalarCoupling(int imode, Energy m0, Energy m1, Energy m2, Complex &A1, Complex &A2, Complex &B1, Complex &B2) const
Couplings for spin- to spin- and a scalar.
Herwig::BaryonWidthGenerator
The BaryonWidthGenerator class is designed to automatically calculate the running width for a given p...
Definition:
BaryonWidthGenerator.h:26
Herwig::DecayIntegrator
Main class for Decayers implementing multi-channel phase space integration.
Definition:
DecayIntegrator.h:60
Herwig::DecayIntegrator::imode
int imode() const
The mode being used for this decay.
Definition:
DecayIntegrator.h:118
Herwig::DecayIntegrator::MEOption
MEOption
Enum for the matrix element option.
Definition:
DecayIntegrator.h:72
ThePEG::DecayMode
ThePEG::Particle
ThePEG::RhoDMatrix
Herwig
-*- C++ -*-
Definition:
BasicConsistency.h:17
ThePEG::Helicity::outgoing
outgoing
ThePEG
ThePEG::Complex
std::complex< double > Complex
ThePEG::tPDVector
vector< tPDPtr > tPDVector
ThePEG::ParticleVector
vector< PPtr > ParticleVector
Generated on Thu Jun 20 2024 17:50:52 for Herwig by
1.9.6