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Herwig  7.1.4

This class decays the "normal" clusters. More...

#include <ClusterDecayer.h>

Inheritance diagram for Herwig::ClusterDecayer:

Public Member Functions

void decay (const ClusterVector &clusters, tPVector &finalhadrons)
 Decays all remaining clusters into hadrons. More...
 
void persistentOutput (PersistentOStream &) const
 Standard ThePEG function for writing a persistent stream.
 
void persistentInput (PersistentIStream &, int)
 Standard ThePEG function for reading from a persistent stream.
 
pair< PPtr, PPtrdecayIntoTwoHadrons (tClusterPtr ptr)
 Decays the cluster into two hadrons. More...
 
Standard constructors and destructors.
 ClusterDecayer ()
 Default constructor.
 
- 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())
 
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 interfaces.
 
- 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...
 
- 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 void doinitrun ()
 
virtual void dofinish ()
 
virtual IVector getReferences ()
 
virtual void rebind (const TranslationMap &)
 
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 &)
 
- Protected Member Functions inherited from ThePEG::Pointer::ReferenceCounted
 ReferenceCounted (const ReferenceCounted &)
 
ReferenceCountedoperator= (const ReferenceCounted &)
 
 ReferenceCounted (const ReferenceCounted &)
 
ReferenceCountedoperator= (const ReferenceCounted &)
 
- Protected Member Functions inherited from ThePEG::Named
const Namedoperator= (const Named &other)
 
const string & name (const string &newName)
 

Private Member Functions

ClusterDecayeroperator= (const ClusterDecayer &)
 Private and non-existent assignment operator.
 
void calculatePositions (const Lorentz5Momentum &, const LorentzPoint &, const Lorentz5Momentum &, const Lorentz5Momentum &, LorentzPoint &, LorentzPoint &) const
 Compute the positions of the new hadrons based on the clusters position. More...
 

Private Attributes

Ptr< HadronSelector >::pointer _hadronsSelector
 Pointer to a Herwig::HadronSelector for choosing decay types.
 
bool _onshell
 Whether or not the hadrons produced should be on-shell or generated used the MassGenerator.
 
unsigned int _masstry
 Number of tries to generate the masses of the decay products.
 
bool _clDirLight
 Whether a cluster decays along the perturbative parton direction.
 
bool _clDirBottom
 
bool _clDirCharm
 
bool _clDirExotic
 
double _clSmrLight
 The S parameter from decayIntoTwoHadrons.
 
double _clSmrBottom
 
double _clSmrCharm
 
double _clSmrExotic
 

Additional Inherited Members

- 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)
 

Detailed Description

This class decays the "normal" clusters.

Author
Philip Stephens
Alberto Ribon

This class decays the "normal" clusters, e.g. ones that are not heavy enough for fission, and not too light to decay into one hadron.

This class is directs the production of hadrons via 2-body cluster decays. The selection of the hadron flavours is given by Herwig::HadronSelector.

See also
HadronSelector
The interfaces defined for ClusterDecayer.

Definition at line 37 of file ClusterDecayer.h.

Member Function Documentation

◆ calculatePositions()

void Herwig::ClusterDecayer::calculatePositions ( const Lorentz5Momentum &  ,
const LorentzPoint &  ,
const Lorentz5Momentum &  ,
const Lorentz5Momentum &  ,
LorentzPoint &  ,
LorentzPoint &   
) const
private

Compute the positions of the new hadrons based on the clusters position.

This method calculates the positions of the children hadrons by a call to ThePEG::RandomGenerator::rndGaussTwoNumbers with width inversely proportional to the cluster mass, around the parent cluster position.

◆ clone()

virtual IBPtr Herwig::ClusterDecayer::clone ( ) const
protectedvirtual

Make a simple clone of this object.

Returns
a pointer to the new object.

Implements ThePEG::InterfacedBase.

◆ decay()

void Herwig::ClusterDecayer::decay ( const ClusterVector clusters,
tPVector finalhadrons 
)

Decays all remaining clusters into hadrons.

This routine decays the clusters that are left after Herwig::ClusterFissioner::fission and Herwig::LightClusterDecayer::decay have been called. These are all the "normal" clusters which are not forced into hadrons by the other functions.

◆ decayIntoTwoHadrons()

pair<PPtr,PPtr> Herwig::ClusterDecayer::decayIntoTwoHadrons ( tClusterPtr  ptr)

Decays the cluster into two hadrons.

This routine is used to take a given cluster and decay it into two hadrons which are returned. If one of the constituents is from the perturbative regime then the direction of the perturbative parton is remembered and the decay is preferentially in that direction. The direction of the decay is given by

\[ \cos \theta = 1 + S \log r_1 \]

where $ S $ is a parameter of the model and $ r_1 $ is a random number [0,1].

◆ fullclone()

virtual IBPtr Herwig::ClusterDecayer::fullclone ( ) const
protectedvirtual

Make a clone of this object, possibly modifying the cloned object to make it sane.

Returns
a pointer to the new object.

Reimplemented from ThePEG::InterfacedBase.


The documentation for this class was generated from the following file: