Herwig
7.2.1
|
The MamboDecayer class inherits from the Decayer class in ThePEG and implements the algorithm of R.Kleiss and W.J.Stirling NPB 385 (1992) 413-432 for massive multi-particle phase-space decays. More...
#include <MamboDecayer.h>
Public Member Functions | |
MamboDecayer () | |
The default constructor. | |
virtual bool | accept (tcPDPtr parent, const tPDVector &children) const |
Check if this decayer can perfom the decay for a particular mode. More... | |
virtual ParticleVector | decay (const Particle &parent, const tPDVector &children) const |
Perform the decay of the particle to the specified decay products. More... | |
virtual void | dataBaseOutput (ofstream &os, bool header) const |
Output the setup information for the particle database. More... | |
Functions used by the persistent I/O system. | |
void | persistentOutput (PersistentOStream &os) const |
Function used to write out object persistently. More... | |
void | persistentInput (PersistentIStream &is, int version) |
Function used to read in object persistently. More... | |
Public Member Functions inherited from Herwig::HwDecayerBase | |
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. More... | |
virtual ParticleVector | decay (const DecayMode &dm, const Particle &p) const |
Perform a decay for a given DecayMode and a given Particle instance. More... | |
void | persistentOutput (PersistentOStream &os) const |
Function used to write out object persistently. More... | |
void | persistentInput (PersistentIStream &is, int version) |
Function used to read in object persistently. More... | |
bool | initialize () const |
Access to the initialize variable. | |
bool | databaseOutput () const |
Access the database output variable. | |
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. More... | |
virtual RealEmissionProcessPtr | generateHardest (RealEmissionProcessPtr) |
Apply the POWHEG style correction. | |
Public Member Functions inherited from ThePEG::Decayer | |
Ptr< Amplitude >::pointer | amplitude () const |
virtual bool | needsFullStep () const |
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 |
void | persistentOutput (PersistentOStream &os) const |
void | persistentInput (PersistentIStream &is, int version) |
virtual bool | needsFullStep () const |
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 |
void | persistentOutput (PersistentOStream &os) const |
void | persistentInput (PersistentIStream &is, int version) |
Public Member Functions inherited from HandlerBaseT< UseRandom > | |
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 |
Public Member Functions inherited from ThePEG::Interfaced | |
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 |
void | persistentOutput (PersistentOStream &os) const |
void | persistentInput (PersistentIStream &is, int version) |
Public Member Functions inherited from ThePEG::InterfacedBase | |
string | fullName () const |
string | name () const |
string | path () const |
string | comment () const |
void | setup (istream &is) |
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 |
void | persistentOutput (PersistentOStream &os) const |
void | persistentInput (PersistentIStream &is, int version) |
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 |
void | persistentOutput (PersistentOStream &os) const |
void | persistentInput (PersistentIStream &is, int version) |
Public Member Functions inherited from ThePEG::Base | |
void | debug () const |
Public Member Functions inherited from ThePEG::Pointer::ReferenceCounted | |
CounterType | referenceCount () const |
Public Member Functions inherited from ThePEG::Named | |
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 () |
The standard Init function used to initialize the interfaces. More... | |
Static Public Member Functions inherited from Herwig::HwDecayerBase | |
static void | Init () |
The standard Init function used to initialize the interfaces. More... | |
Static Public Member Functions inherited from ThePEG::Decayer | |
static ParticleVector | DecayParticle (tPPtr parent, Step &step, long maxtry=1000) |
static void | Init () |
Static Public Member Functions inherited from ThePEG::HandlerBase | |
static void | Init () |
Static Public Member Functions inherited from ThePEG::Interfaced | |
static void | Init () |
Static Public Member Functions inherited from ThePEG::InterfacedBase | |
static void | Init () |
Static Public Member Functions inherited from ThePEG::Base | |
static void | Init () |
Protected Member Functions | |
Clone Methods. | |
virtual IBPtr | clone () const |
Make a simple clone of this object. More... | |
virtual IBPtr | fullclone () const |
Make a clone of this object, possibly modifying the cloned object to make it sane. More... | |
Standard Interfaced functions. | |
virtual void | doinitrun () |
Initialize this object. More... | |
Protected Member Functions inherited from Herwig::HwDecayerBase | |
void | fixRho (RhoDMatrix &) const |
Set rho to be diagonal if no correlations. | |
virtual void | dofinish () |
Finalize this object. More... | |
Protected Member Functions inherited from ThePEG::Interfaced | |
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) |
Protected Member Functions inherited from ThePEG::InterfacedBase | |
InterfacedBase (string newName) | |
InterfacedBase (const InterfacedBase &i) | |
virtual void | readSetup (istream &is) |
virtual void | doupdate () |
virtual void | doinit () |
virtual IVector | getReferences () |
virtual void | rebind (const TranslationMap &) |
virtual void | readSetup (istream &is) |
virtual void | doupdate () |
virtual void | doinit () |
virtual IVector | getReferences () |
virtual void | rebind (const TranslationMap &) |
Protected Member Functions inherited from ThePEG::Pointer::ReferenceCounted | |
ReferenceCounted (const ReferenceCounted &) | |
ReferenceCounted & | operator= (const ReferenceCounted &) |
ReferenceCounted (const ReferenceCounted &) | |
ReferenceCounted & | operator= (const ReferenceCounted &) |
Protected Member Functions inherited from ThePEG::Named | |
const Named & | operator= (const Named &other) |
const string & | name (const string &newName) |
Private Member Functions | |
MamboDecayer & | operator= (const MamboDecayer &)=delete |
The assignment operator is private and must never be called. More... | |
double | calculateMomentum (vector< Lorentz5Momentum > &mom, Energy comEn) const |
Set array of mometum to particles. More... | |
void | colourConnections (const Particle &parent, ParticleVector &out) const |
Set up the colour connections for the decay. More... | |
Bessel Functions. | |
void | BesselFns (const long double x, long double &f, long double &fp) const |
Compute the values and it's derivative using asymptotic expansion for large x values. More... | |
void | BesselIExpand (const long double x, long double &f, long double &fp) const |
Compute the values and it's derivative using asymptotic expansion. More... | |
long double | BesselI0 (const long double x) const |
Modified Bessel function of first kind . More... | |
long double | BesselI1 (const long double x) const |
Modified Bessel function of first kind . More... | |
long double | BesselK0 (const long double x) const |
Modified Bessel function of second kind . More... | |
long double | BesselK1 (const long double x) const |
Modified Bessel function of second kind . More... | |
Private Attributes | |
double | _maxweight |
Maximum weight. | |
vector< double > | _a0 |
Store coefficents for aysymptotic expansion of . | |
vector< double > | _a1 |
Store data for aysymptotic expansion of the first derivative . | |
Additional Inherited Members | |
Public Types inherited from Herwig::HwDecayerBase | |
enum | POWHEGType { No, ISR, FSR, Both } |
Virtual members to be overridden by inheriting classes which implement hard corrections. More... | |
Public Types inherited from ThePEG::InterfacedBase | |
enum | InitState |
Public Types inherited from ThePEG::Pointer::ReferenceCounted | |
typedef unsigned int | CounterType |
Public Attributes inherited from ThePEG::InterfacedBase | |
initializing | |
uninitialized | |
initialized | |
runready | |
Public Attributes inherited from ThePEG::Pointer::ReferenceCounted | |
const unsigned long | uniqueId |
Static Protected Member Functions inherited from ThePEG::Interfaced | |
static void | registerRepository (IBPtr) |
static void | registerRepository (IBPtr, string newName) |
The MamboDecayer class inherits from the Decayer class in ThePEG and implements the algorithm of R.Kleiss and W.J.Stirling NPB 385 (1992) 413-432 for massive multi-particle phase-space decays.
Definition at line 27 of file MamboDecayer.h.
|
virtual |
Check if this decayer can perfom the decay for a particular mode.
parent | The decaying particle |
children | The decay products |
Implements Herwig::HwDecayerBase.
|
inlineprivate |
Compute the values and it's derivative using asymptotic expansion for large x values.
x | The argument |
f | The value of the ratio |
fp | The value of the derivative ratio |
Definition at line 151 of file MamboDecayer.h.
References sqr().
|
inlineprivate |
Modified Bessel function of first kind .
x | Argument of Bessel Function |
Definition at line 184 of file MamboDecayer.h.
|
inlineprivate |
Modified Bessel function of first kind .
x | Argument of Bessel Function |
Definition at line 204 of file MamboDecayer.h.
|
inlineprivate |
Compute the values and it's derivative using asymptotic expansion.
x | The argument |
f | The value of the ratio |
fp | The value of the derivative ratio |
Definition at line 169 of file MamboDecayer.h.
|
inlineprivate |
Modified Bessel function of second kind .
x | Argument of Bessel Function |
Definition at line 224 of file MamboDecayer.h.
References sqrt().
|
inlineprivate |
Modified Bessel function of second kind .
x | Argument of Bessel Function |
Definition at line 245 of file MamboDecayer.h.
References sqrt().
|
private |
Set array of mometum to particles.
mom | Momentum set to be distributed over phase-space |
comEn | The mass of the decaying particle |
|
inlineprotectedvirtual |
Make a simple clone of this object.
Implements ThePEG::InterfacedBase.
Definition at line 95 of file MamboDecayer.h.
|
private |
Set up the colour connections for the decay.
parent | The incoming particle |
out | The decay products |
|
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 |
Implements Herwig::HwDecayerBase.
|
virtual |
Perform the decay of the particle to the specified decay products.
parent | The decaying particle |
children | The decay products |
Implements Herwig::HwDecayerBase.
|
protectedvirtual |
Initialize this object.
Called in the run phase just before a run begins.
Reimplemented from ThePEG::InterfacedBase.
|
inlineprotectedvirtual |
Make a clone of this object, possibly modifying the cloned object to make it sane.
Reimplemented from ThePEG::InterfacedBase.
Definition at line 101 of file MamboDecayer.h.
|
static |
The standard Init function used to initialize the interfaces.
Called exactly once for each class by the class description system before the main function starts or when this class is dynamically loaded.
|
privatedelete |
The assignment operator is private and must never be called.
In fact, it should not even be implemented.
void Herwig::MamboDecayer::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. |
void Herwig::MamboDecayer::persistentOutput | ( | PersistentOStream & | os | ) | const |
Function used to write out object persistently.
os | the persistent output stream written to. |