Herwig 7.3.0
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This class is designed for the partonic decay of a bottom or charm mesons and baryons and is intended to be the same as that in HERWIG6.4. More...
#include <HeavyDecayer.h>
Public Member Functions | |
HeavyDecayer () | |
Default constructor. | |
virtual bool | accept (tcPDPtr parent, const tPDVector &children) const |
Check if this decayer can perfom the decay for a particular mode. | |
virtual ParticleVector | decay (const Particle &parent, const tPDVector &children) const |
Perform the decay of the particle to the specified decay products. | |
virtual void | dataBaseOutput (ofstream &os, bool header) const |
Output the setup information for the particle database. | |
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) |
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PartonicDecayerBase () | |
The default constructor. | |
virtual ParticleVector | decay (const DecayMode &dm, const Particle &p) const |
Perform a decay for a given DecayMode and a given Particle instance. | |
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. | |
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HwDecayerBase () | |
The default constructor. | |
virtual bool | accept (const DecayMode &dm) const |
Check if this decayer can perfom the decay specified by the given decay mode. | |
virtual POWHEGType | hasPOWHEGCorrection () |
Has a POWHEG style correction. | |
virtual bool | hasMECorrection () |
Has an old fashioned ME correction. | |
virtual void | initializeMECorrection (RealEmissionProcessPtr, double &, double &) |
Initialize the ME correction. | |
virtual RealEmissionProcessPtr | applyHardMatrixElementCorrection (RealEmissionProcessPtr) |
Apply the hard matrix element correction to a given hard process or decay. | |
virtual bool | softMatrixElementVeto (PPtr parent, PPtr progenitor, const bool &fs, const Energy &highestpT, const vector< tcPDPtr > &ids, const double &z, const Energy &scale, const Energy &pT) |
Apply the soft matrix element correction. | |
virtual RealEmissionProcessPtr | generateHardest (RealEmissionProcessPtr) |
Apply the POWHEG style correction. | |
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. | |
bool | initialize () const |
Access to the initialize variable. | |
bool | databaseOutput () const |
Access the database output variable. | |
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void | persistentOutput (PersistentOStream &os) const |
void | persistentInput (PersistentIStream &is, int version) |
virtual bool | accept (const DecayMode &dm) const=0 |
virtual bool | needsFullStep () const |
virtual ParticleVector | decay (const DecayMode &dm, const Particle &p) const=0 |
virtual ParticleVector | decay (const DecayMode &dm, const Particle &p, Step &step) const |
virtual double | brat (const DecayMode &dm, const ParticleData &pd, double oldbrat) const |
virtual double | brat (const DecayMode &dm, const Particle &p, double oldbrat) const |
virtual ParticleVector | getChildren (const DecayMode &dm, const Particle &parent) const |
virtual void | finalBoost (const Particle &parent, const ParticleVector &children) const |
virtual void | setScales (const Particle &parent, const ParticleVector &children) const |
Ptr< Amplitude >::pointer | amplitude () const |
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double | rnd () const |
double | rnd (double xu) const |
double | rnd (double xl, double xu) const |
bool | rndbool () const |
bool | rndbool (double p) const |
bool | rndbool (double p1, double p2) const |
int | rndsign (double p1, double p2, double p3) const |
int | rnd2 (double p0, double p1) const |
int | rnd3 (double p0, double p1, double p2) const |
int | rnd4 (double p0, double p1, double p2, double p3) const |
long | irnd (long xu=2) const |
long | irnd (long xl, long xu) const |
const StandardModelBase & | SM () const |
tSMPtr | standardModel () const |
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virtual bool | defaultInit () |
PPtr | getParticle (PID) const |
PDPtr | getParticleData (PID) const |
bool | used () const |
void | useMe () const |
tEGPtr | generator () const |
void | persistentOutput (PersistentOStream &os) const |
void | persistentInput (PersistentIStream &is, int version) |
PPtr | getParticle (PID) const |
PDPtr | getParticleData (PID) const |
bool | used () const |
void | useMe () const |
tEGPtr | generator () const |
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string | fullName () const |
string | name () const |
string | path () const |
string | comment () const |
void | setup (istream &is) |
void | update () |
void | init () |
virtual bool | preInitialize () const |
void | initrun () |
void | finish () |
void | touch () |
void | reset () |
void | clear () |
InitState | state () const |
bool | locked () const |
bool | touched () const |
virtual IBPtr | fullclone () const |
void | persistentOutput (PersistentOStream &os) const |
void | persistentInput (PersistentIStream &is, int version) |
virtual void | debugme () const |
void | update () |
void | init () |
virtual bool | preInitialize () const |
void | initrun () |
void | finish () |
void | touch () |
void | reset () |
void | clear () |
InitState | state () const |
bool | locked () const |
bool | touched () const |
virtual IBPtr | fullclone () const |
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void | debug () const |
virtual void | debugme () const |
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CounterType | referenceCount () const |
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Named (const string &newName=string()) | |
Named (const Named &)=default | |
const string & | name () const |
bool | operator== (const Named &other) const |
bool | operator< (const Named &other) const |
Static Public Member Functions | |
static void | Init () |
Standard Init function used to initialize the interface. | |
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static void | Init () |
The standard Init function used to initialize the interfaces. | |
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static void | Init () |
The standard Init function used to initialize the interfaces. | |
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static void | Init () |
static ParticleVector | DecayParticle (tPPtr parent, Step &step, long maxtry=1000) |
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static void | Init () |
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static void | Init () |
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static void | Init () |
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static void | Init () |
Clone Methods. | |
int | MECode |
The code for the matrix element being used. | |
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. | |
static double | VAWt (Energy2, Energy2, Energy2, InvEnergy4) |
Weighting of phase space for V-A matrix elements. | |
const HeavyDecayer & | operator= (const HeavyDecayer &)=delete |
Private and non-existent assignment operator. | |
Additional Inherited Members | |
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enum | POWHEGType { No , ISR , FSR , Both } |
Virtual members to be overridden by inheriting classes which implement hard corrections. More... | |
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enum | InitState |
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typedef unsigned int | CounterType |
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initializing | |
uninitialized | |
initialized | |
runready | |
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const unsigned long | uniqueId |
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virtual void | doinit () |
Initialize this object after the setup phase before saving an EventGenerator to disk. | |
bool | duplicateMode (const Particle &parent, const vector< tPPtr > &hadrons) const |
Check hadrons produced in a partonic hadron decay do not reproduce an inclusive mode. | |
PVector | shower (const Particle &parent, ParticleVector &partons) const |
Perform the parton shower. | |
bool | timeLikeShower (tShowerParticlePtr particle, Branching fb, bool first, PVector &output) const |
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virtual void | dofinish () |
Finalize this object. | |
void | fixRho (RhoDMatrix &) const |
Set rho to be diagonal if no correlations. | |
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void | reporeg (IBPtr object, string name) const |
bool | setDefaultReference (PtrT &ptr, string classname, string objectname) |
Interfaced (const string &newName) | |
Interfaced (const Interfaced &i) | |
void | setGenerator (tEGPtr generator) |
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virtual void | readSetup (istream &is) |
virtual void | doupdate () |
virtual void | doinit () |
virtual void | doinitrun () |
virtual void | dofinish () |
virtual IVector | getReferences () |
virtual void | rebind (const TranslationMap &) |
virtual IBPtr | clone () const=0 |
InterfacedBase (string newName) | |
InterfacedBase (const InterfacedBase &i) | |
virtual void | readSetup (istream &is) |
virtual void | doupdate () |
virtual void | doinit () |
virtual void | doinitrun () |
virtual void | dofinish () |
virtual IVector | getReferences () |
virtual void | rebind (const TranslationMap &) |
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ReferenceCounted (const ReferenceCounted &) | |
ReferenceCounted & | operator= (const ReferenceCounted &) |
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const Named & | operator= (const Named &other) |
const string & | name (const string &newName) |
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static void | registerRepository (IBPtr) |
static void | registerRepository (IBPtr, string newName) |
This class is designed for the partonic decay of a bottom or charm mesons and baryons and is intended to be the same as that in HERWIG6.4.
Only four body partonic decays are supported.
Two types of matrix element are supported for this decay
The class decays a particle based on the DecayMode given. The basic idea is that the heavy parton in the heavy meson will decay weakly while the other parton will be more or less unchanged. This produces 4 partons, the spectator plus the result of the weak decay. The W then decays again into two more partons, e.g. a decay of \(B^0\to d,\bar{c},\bar{d}, u \).
\(\bar{b}\to\bar{c}\) (colour connected to spectator) and \(W^+\to\bar{d}u\) (the W decay products are colour connected)
The resulting partons then need to be hadronized and decayed again.
Definition at line 47 of file HeavyDecayer.h.
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virtual |
Check if this decayer can perfom the decay for a particular mode.
parent | The decaying particle |
children | The decay products |
Implements Herwig::PartonicDecayerBase.
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virtual |
Make a simple clone of this object.
Implements ThePEG::InterfacedBase.
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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::PartonicDecayerBase.
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virtual |
Perform the decay of the particle to the specified decay products.
parent | The decaying particle |
children | The decay products |
Implements Herwig::PartonicDecayerBase.
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virtual |
Make a clone of this object, possibly modifying the cloned object to make it sane.
Reimplemented from ThePEG::InterfacedBase.
void Herwig::HeavyDecayer::persistentInput | ( | PersistentIStream & | is, |
int | version | ||
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is | the persistent input stream read from. |
version | the version number of the object when written. |
void Herwig::HeavyDecayer::persistentOutput | ( | PersistentOStream & | os | ) | const |
Function used to write out object persistently.
os | the persistent output stream written to. |
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private |
The code for the matrix element being used.
Definition at line 136 of file HeavyDecayer.h.