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Herwig 7.3.0
Herwig::HadronSelector Class Referenceabstract

This class selects the hadron flavours of a cluster decay. More...

#include <HadronSelector.h>

Inheritance diagram for Herwig::HadronSelector:

Public Member Functions

 HadronSelector (unsigned int)
 The default constructor.
 
virtual tcPDPair chooseHadronPair (const Energy cluMass, tcPDPtr par1, tcPDPtr par2) const
 Method to return a pair of hadrons given the PDG codes of two or three constituents.
 
tcPDPtr chooseSingleHadron (tcPDPtr par1, tcPDPtr par2, Energy mass) const
 Select the single hadron for a cluster decay return null pointer if not a single hadron decay.
 
tcPDPair lightestHadronPair (tcPDPtr ptr1, tcPDPtr ptr2) const
 This returns the lightest pair of hadrons given by the flavours.
 
Energy massLightestHadronPair (tcPDPtr ptr1, tcPDPtr ptr2) const
 Returns the mass of the lightest pair of hadrons with the given particles.
 
tcPDPtr lightestHadron (tcPDPtr ptr1, tcPDPtr ptr2) const
 Returns the lightest hadron formed by the given particles.
 
vector< pair< tcPDPtr, double > > hadronsBelowThreshold (Energy threshold, tcPDPtr ptr1, tcPDPtr ptr2) const
 Returns the hadrons below the constituent mass threshold formed by the given particles, together with their total weight.
 
Energy massLightestHadron (tcPDPtr ptr1, tcPDPtr ptr2) const
 Return the nominal mass of the hadron returned by lightestHadron()
 
double pwt (long pid) const
 Access the parton weights.
 
virtual std::tuple< bool, bool, bool > selectBaryon (const Energy cluMass, tcPDPtr par1, tcPDPtr par2) const
 Force baryon/meson selection.
 
virtual double strangeWeight (const Energy cluMass, tcPDPtr par1, tcPDPtr par2) const
 Strange quark weight.
 
virtual PDPtr makeDiquark (tcPDPtr par1, tcPDPtr par2)
 Return the particle data of the diquark (anti-diquark) made by the two quarks (antiquarks) par1, par2.
 
- 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
 
- Public Member Functions inherited from ThePEG::InterfacedBase
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
 
- Public Member Functions inherited from ThePEG::Base
void debug () const
 
virtual void debugme () 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
 

Private Attributes

A parameter used for determining when clusters are too light.

This parameter is used for setting the lower threshold, \( t \) as

\[ t' = t(1 + r B^1_{\rm lim}) \]

where \( r \) is a random number [0,1].

double _limBottom
 
double _limCharm
 
double _limExotic
 
unsigned int belowThreshold_
 Option for the selection of hadrons below the pair threshold.
 
map< pair< long, long >, tcPDPairlightestHadrons_
 Caches of lightest pairs for speed.
 

Standard Interfaced functions.

enum  MesonMultiplets { Lmax = 3 , Jmax = 4 , Nmax = 4 }
 Enums so arrays can be statically allocated. More...
 
vector< PDPtr_partons
 The PDG codes of the constituent particles allowed.
 
vector< PDPtr_forbidden
 The PDG codes of the hadrons which cannot be produced in the hadronization.
 
map< long, double > _pwt
 Weights for quarks and diquarks.
 
double _etamix
 The mixing angles for the \(I=0\) mesons containing light quarks.
 
double _phimix
 The \(\phi-\omega\) mixing angle.
 
double _h1mix
 The \(h_1'-h_1\) mixing angle.
 
double _f0mix
 The \(f_0(1710)-f_0(1370)\) mixing angle.
 
double _f1mix
 The \(f_1(1420)-f_1(1285)\) mixing angle.
 
double _f2mix
 The \(f'_2-f_2\) mixing angle.
 
double _eta2mix
 The \(\eta_2(1870)-\eta_2(1645)\) mixing angle.
 
double _omhmix
 The \(\phi(???)-\omega(1650)\) mixing angle.
 
double _ph3mix
 The \(\phi_3-\omega_3\) mixing angle.
 
double _eta2Smix
 The \(\eta(1475)-\eta(1295)\) mixing angle.
 
double _phi2Smix
 The \(\phi(1680)-\omega(1420)\) mixing angle.
 
vector< double > _weight1S0
 The weights for the various meson multiplets to be used to supress the production of particular states.
 
vector< double > _weight3S1
 The weights for the \(\phantom{1}^3S_1\) multiplets.
 
vector< double > _weight1P1
 The weights for the \(\phantom{1}^1P_1\) multiplets.
 
vector< double > _weight3P0
 The weights for the \(\phantom{1}^3P_0\) multiplets.
 
vector< double > _weight3P1
 The weights for the \(\phantom{1}^3P_1\) multiplets.
 
vector< double > _weight3P2
 The weights for the \(\phantom{1}^3P_2\) multiplets.
 
vector< double > _weight1D2
 The weights for the \(\phantom{1}^1D_2\) multiplets.
 
vector< double > _weight3D1
 The weights for the \(\phantom{1}^3D_1\) multiplets.
 
vector< double > _weight3D2
 The weights for the \(\phantom{1}^3D_2\) multiplets.
 
vector< double > _weight3D3
 The weights for the \(\phantom{1}^3D_3\) multiplets.
 
vector< vector< vector< double > > > _repwt
 The weights for the excited meson multiplets.
 
HadronTable _table
 The table of hadron data.
 
unsigned int _topt
 Option for the construction of the tables.
 
unsigned int _trial
 Which particles to produce for debugging purposes.
 
virtual void doinit ()
 Initialize this object after the setup phase before saving an EventGenerator to disk.
 
void insertToHadronTable (tPDPtr &particle, int flav1, int flav2)
 A sub-function of HadronSelector::constructHadronTable().
 
virtual void constructHadronTable ()
 Construct the table of hadron data This is the main method to initialize the hadron data (mainly the weights associated to each hadron, taking into account its spin, eventual isoscalar-octect mixing, singlet-decuplet factor).
 
const HadronTabletable () const
 Access to the table of hadrons.
 
HadronTabletable ()
 Access to the table of hadrons.
 
const vector< PDPtr > & partons () const
 Access to the list of partons.
 
vector< PDPtr > & partons ()
 Access to the list of partons.
 
map< long, double > & pwt ()
 Access the parton weights.
 
double probabilityMixing (const double angleMix, const int order) const
 Methods for the mixing of \(I=0\) mesons.
 
virtual double mixingStateWeight (long id) const
 Returns the weight of given mixing state.
 
double specialWeight (long id) const
 Calculates a special weight specific to a given hadron.
 
virtual double mesonWeight (long id) const
 Weights for mesons.
 
virtual double baryonWeight (long id) const =0
 Weights for baryons.
 
int signHadron (tcPDPtr ptr1, tcPDPtr ptr2, tcPDPtr hadron) const
 This method returns the proper sign ( > 0 hadron; < 0 anti-hadron ) for the input PDG id idHad > 0, suppose to be made by the two constituent particle pointers: ptr1 and ptr2 (both with proper sign).
 
virtual void insertMeson (HadronInfo a, int flav1, int flav2)
 Insert a meson in the table.
 
virtual void insertOneHalf (HadronInfo a, int flav1, int flav2)
 Insert a spin \(\frac12\) baryon in the table.
 
virtual void insertThreeHalf (HadronInfo a, int flav1, int flav2)
 Insert a spin \(\frac32\) baryon in the table.
 
HadronSelectoroperator= (const HadronSelector &)=delete
 The assignment operator is private and must never be called.
 

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)
 Function used to read in object persistently.
 
static void Init ()
 The standard Init function used to initialize the interfaces.
 

Additional Inherited Members

- Public Types inherited from ThePEG::InterfacedBase
enum  InitState
 
- Public Types inherited from ThePEG::Pointer::ReferenceCounted
typedef unsigned int CounterType
 
- 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 ()
 
- Public Attributes inherited from ThePEG::InterfacedBase
 initializing
 
 uninitialized
 
 initialized
 
 runready
 
- Public Attributes inherited from ThePEG::Pointer::ReferenceCounted
const unsigned long uniqueId
 
- 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
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 &)
 
- Protected Member Functions inherited from ThePEG::Pointer::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)
 
- Static Protected Member Functions inherited from ThePEG::Interfaced
static void registerRepository (IBPtr)
 
static void registerRepository (IBPtr, string newName)
 

Detailed Description

This class selects the hadron flavours of a cluster decay.

Author
Philip Stephens
Alberto Ribon
Peter Richardson

This is the base class for the selection of either a pair of hadrons, or in some cases a single hadron. The different approaches which were previously implemented in this class are now implemented in the HwppSelector and Hw64Selector which inherit from this class.

This class implements a number of methods which are needed by all models and in addition contains the weights for the different meson multiplets and mixing of the light \(I=0\) mesons.

See also
The interfaces defined for HadronSelector.
HwppSelector
Hw64Selector

Definition at line 51 of file HadronSelector.h.

Member Enumeration Documentation

◆ MesonMultiplets

Enums so arrays can be statically allocated.

Defines values for array sizes. L,J,N max values for excited mesons.

Definition at line 576 of file HadronSelector.h.

Member Function Documentation

◆ baryonWeight()

virtual double Herwig::HadronSelector::baryonWeight ( long  id) const
protectedpure virtual

Weights for baryons.

Implemented in Herwig::Hw64Selector, Herwig::Hw7Selector, and Herwig::HwppSelector.

Referenced by specialWeight().

◆ chooseHadronPair()

virtual tcPDPair Herwig::HadronSelector::chooseHadronPair ( const Energy  cluMass,
tcPDPtr  par1,
tcPDPtr  par2 
) const
virtual

Method to return a pair of hadrons given the PDG codes of two or three constituents.

Parameters
cluMassThe mass of the cluster
par1The first constituent
par2The second constituent
par3The third constituent

Reimplemented in Herwig::Hw64Selector.

◆ chooseSingleHadron()

tcPDPtr Herwig::HadronSelector::chooseSingleHadron ( tcPDPtr  par1,
tcPDPtr  par2,
Energy  mass 
) const

Select the single hadron for a cluster decay return null pointer if not a single hadron decay.

Parameters
par11st constituent
par22nd constituent
massMass of the cluster

◆ constructHadronTable()

virtual void Herwig::HadronSelector::constructHadronTable ( )
protectedvirtual

Construct the table of hadron data This is the main method to initialize the hadron data (mainly the weights associated to each hadron, taking into account its spin, eventual isoscalar-octect mixing, singlet-decuplet factor).

This is the method that one should update when new or updated hadron data is available.

This class implements the construction of the basic table but can be overridden if needed in inheriting classes.

The rationale for factors used for diquarks involving different quarks can be can be explained by taking a prototype example that in the exact SU(2) limit, in which:

\[m_u=m_d\]

\[M_p=M_n=M_\Delta\]

and we will have equal numbers of u and d quarks produced. Suppose that we weight 1 the diquarks made of the same quark and 1/2 those made of different quarks, the fractions of u and d baryons (p, n, Delta) we get are the following:

  • \(\Delta^{++}\): 1 possibility only u uu with weight 1
  • \(\Delta^- \): 1 possibility only d dd with weight 1
  • \(p,\Delta^+ \): 2 possibilities u ud with weight 1/2 d uu with weight 1
  • \(n,\Delta^0 \): 2 possibilities d ud with weight 1/2 u dd with weight 1 In the latter two cases, we have to take into account the fact that p and n have spin 1/2 whereas Delta+ and Delta0 have spin 3/2 therefore from phase space we get a double weight for Delta+ and Delta0 relative to p and n respectively. Therefore the relative amount of these baryons that is produced is the following:

    p = # n = ( 1/2 + 1 ) * 1/3 = 1/2

Delta++ = # Delta- = 1 = ( 1/2 + 1) * 2/3 # Delta+ = # Delta0

which is correct, and therefore the weight 1/2 for the diquarks of different types of quarks is justified (at least in this limit of exact SU(2) ).

◆ doinit()

virtual void Herwig::HadronSelector::doinit ( )
protectedvirtual

Initialize this object after the setup phase before saving an EventGenerator to disk.

The array _repwt is initialized using the interfaces to set different weights for different meson multiplets and the constructHadronTable() method called to complete the construction of the hadron tables.

Exceptions
InitExceptionif object could not be initialized properly.

Reimplemented from ThePEG::InterfacedBase.

Reimplemented in Herwig::Hw64Selector, Herwig::Hw7Selector, and Herwig::HwppSelector.

◆ hadronsBelowThreshold()

vector< pair< tcPDPtr, double > > Herwig::HadronSelector::hadronsBelowThreshold ( Energy  threshold,
tcPDPtr  ptr1,
tcPDPtr  ptr2 
) const

Returns the hadrons below the constituent mass threshold formed by the given particles, together with their total weight.

Given the id of two (or three) constituents of a cluster, it returns the lightest hadron with proper flavour numbers.

Parameters
thresholdThe theshold
ptr1is the first constituent
ptr2is the second constituent

◆ Init()

static void Herwig::HadronSelector::Init ( )
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.

◆ insertOneHalf()

virtual void Herwig::HadronSelector::insertOneHalf ( HadronInfo  a,
int  flav1,
int  flav2 
)
protectedvirtual

Insert a spin \(\frac12\) baryon in the table.

Reimplemented in Herwig::Hw7Selector.

◆ insertThreeHalf()

virtual void Herwig::HadronSelector::insertThreeHalf ( HadronInfo  a,
int  flav1,
int  flav2 
)
protectedvirtual

Insert a spin \(\frac32\) baryon in the table.

Reimplemented in Herwig::Hw7Selector.

◆ insertToHadronTable()

void Herwig::HadronSelector::insertToHadronTable ( tPDPtr particle,
int  flav1,
int  flav2 
)
protected

A sub-function of HadronSelector::constructHadronTable().

It receives the information of a prospective Hadron and inserts it into the hadron table construct.

Parameters
particleis a particle data pointer to the hadron
flav1is the first constituent of the hadron
flav2is the second constituent of the hadron

◆ lightestHadron()

tcPDPtr Herwig::HadronSelector::lightestHadron ( tcPDPtr  ptr1,
tcPDPtr  ptr2 
) const

Returns the lightest hadron formed by the given particles.

Given the id of two (or three) constituents of a cluster, it returns the lightest hadron with proper flavour numbers.

Parameters
ptr1is the first constituent
ptr2is the second constituent

◆ lightestHadronPair()

tcPDPair Herwig::HadronSelector::lightestHadronPair ( tcPDPtr  ptr1,
tcPDPtr  ptr2 
) const

This returns the lightest pair of hadrons given by the flavours.

Given the two (or three) constituents of a cluster, it returns the two lightest hadrons with proper flavour numbers. Furthermore, the first of the two hadrons must have the constituent with par1, and the second must have the constituent with par2.

Todo:
At the moment it does nothing in the case that also par3 is present.

The method is implemented by calling twice lightestHadron, once with (par1,quarktopick->CC()) ,and once with (par2,quarktopick) where quarktopick is either the pointer to d or u quarks . In fact, the idea is that whatever the flavour of par1 and par2, no matter if (anti-)quark or (anti-)diquark, the lightest pair of hadrons containing flavour par1 and par2 will have either flavour d or u, being the lightest quarks. The method returns the pair (PDPtr(),PDPtr()) if anything goes wrong.

Todo:
The method assumes par3 == PDPtr() (otherwise we don't know how to proceed: a possible, trivial way would be to randomly select two of the three (anti-)quarks and treat them as a (anti-)diquark, reducing the problem to two components as treated below. In the normal (two components) situation, the strategy is the following: treat in the same way the two possibilities: (d dbar) (i=0) and (u ubar) (i=1) as the pair quark-antiquark necessary to form a pair of hadrons containing the input flavour par1 and par2; finally, select the one that produces the lightest pair of hadrons, compatible with the charge conservation constraint.

◆ makeDiquark()

virtual PDPtr Herwig::HadronSelector::makeDiquark ( tcPDPtr  par1,
tcPDPtr  par2 
)
virtual

Return the particle data of the diquark (anti-diquark) made by the two quarks (antiquarks) par1, par2.

Parameters
par1(anti-)quark data pointer
par2(anti-)quark data pointer

Reimplemented in Herwig::Hw7Selector.

◆ massLightestHadron()

Energy Herwig::HadronSelector::massLightestHadron ( tcPDPtr  ptr1,
tcPDPtr  ptr2 
) const
inline

Return the nominal mass of the hadron returned by lightestHadron()

Parameters
ptr1is the first constituent
ptr2is the second constituent

Definition at line 154 of file HadronSelector.h.

References _table, and ThePEG::Exception::eventerror.

◆ massLightestHadronPair()

Energy Herwig::HadronSelector::massLightestHadronPair ( tcPDPtr  ptr1,
tcPDPtr  ptr2 
) const
inline

Returns the mass of the lightest pair of hadrons with the given particles.

Parameters
ptr1is the first constituent
ptr2is the second constituent

Definition at line 116 of file HadronSelector.h.

References lightestHadrons_, and ThePEG::ZERO.

◆ mixingStateWeight()

virtual double Herwig::HadronSelector::mixingStateWeight ( long  id) const
protectedvirtual

Returns the weight of given mixing state.

Parameters
idThe PDG code of the meson

◆ operator=()

HadronSelector & Herwig::HadronSelector::operator= ( const HadronSelector )
privatedelete

The assignment operator is private and must never be called.

In fact, it should not even be implemented.

◆ partons() [1/2]

vector< PDPtr > & Herwig::HadronSelector::partons ( )
inlineprotected

Access to the list of partons.

Definition at line 314 of file HadronSelector.h.

References _partons.

◆ partons() [2/2]

const vector< PDPtr > & Herwig::HadronSelector::partons ( ) const
inlineprotected

Access to the list of partons.

Definition at line 307 of file HadronSelector.h.

References _partons.

◆ persistentInput()

void Herwig::HadronSelector::persistentInput ( PersistentIStream is,
int  version 
)

Function used to read in object persistently.

Parameters
isthe persistent input stream read from.
versionthe version number of the object when written.

◆ persistentOutput()

void Herwig::HadronSelector::persistentOutput ( PersistentOStream os) const

Function used to write out object persistently.

Parameters
osthe persistent output stream written to.

◆ probabilityMixing()

double Herwig::HadronSelector::probabilityMixing ( const double  angleMix,
const int  order 
) const
inlineprotected

Methods for the mixing of \(I=0\) mesons.

Return the probability of mixing for Octet-Singlet isoscalar mixing, the probability of the \(\frac1{\sqrt{2}}(|u\bar{u}\rangle + |d\bar{d}\rangle)\) component is returned.

Parameters
angleMixThe mixing angle in degrees (not radians)
orderis 0 for no mixing, 1 for the first resonance of a pair, 2 for the second one. The mixing is defined so that for example with \(\eta-\eta'\) mixing where the mixing angle is \(\theta=-23^0$ with $\eta\) as the first particle and \(\eta'\) the second one. The convention used is

\[\eta = \cos\theta|\eta_{\rm octet }\rangle -\sin\theta|\eta_{\rm singlet}\rangle\]

\[\eta' = \sin\theta|\eta_{\rm octet }\rangle -\cos\theta|\eta_{\rm singlet}\rangle\]

with

\[|\eta_{\rm singlet}\rangle = \frac1{\sqrt{3}} \left[|u\bar{u}\rangle + |d\bar{d}\rangle + |s\bar{s}\rangle\right]\]

\[|\eta_{\rm octet }\rangle = \frac1{\sqrt{6}} \left[|u\bar{u}\rangle + |d\bar{d}\rangle - 2|s\bar{s}\rangle\right]\]

Definition at line 351 of file HadronSelector.h.

References ThePEG::Constants::pi, ThePEG::sqr(), and ThePEG::sqrt().

◆ pwt() [1/2]

map< long, double > & Herwig::HadronSelector::pwt ( )
inlineprotected

Access the parton weights.

Definition at line 321 of file HadronSelector.h.

References _pwt.

◆ pwt() [2/2]

double Herwig::HadronSelector::pwt ( long  pid) const
inline

Access the parton weights.

Definition at line 171 of file HadronSelector.h.

References _pwt.

◆ selectBaryon()

virtual std::tuple< bool, bool, bool > Herwig::HadronSelector::selectBaryon ( const Energy  cluMass,
tcPDPtr  par1,
tcPDPtr  par2 
) const
virtual

Force baryon/meson selection.

Reimplemented in Herwig::Hw7Selector, and Herwig::HwppSelector.

◆ specialWeight()

double Herwig::HadronSelector::specialWeight ( long  id) const
inlineprotected

Calculates a special weight specific to a given hadron.

Parameters
idThe PDG code of the hadron

Definition at line 373 of file HadronSelector.h.

References baryonWeight(), and mesonWeight().

◆ strangeWeight()

virtual double Herwig::HadronSelector::strangeWeight ( const Energy  cluMass,
tcPDPtr  par1,
tcPDPtr  par2 
) const
virtual

Strange quark weight.

Reimplemented in Herwig::Hw7Selector, and Herwig::HwppSelector.

◆ table() [1/2]

HadronTable & Herwig::HadronSelector::table ( )
inlineprotected

Access to the table of hadrons.

Definition at line 300 of file HadronSelector.h.

References _table.

◆ table() [2/2]

const HadronTable & Herwig::HadronSelector::table ( ) const
inlineprotected

Access to the table of hadrons.

Definition at line 293 of file HadronSelector.h.

References _table.

Member Data Documentation

◆ _eta2mix

double Herwig::HadronSelector::_eta2mix
private

The \(\eta_2(1870)-\eta_2(1645)\) mixing angle.

Definition at line 480 of file HadronSelector.h.

◆ _eta2Smix

double Herwig::HadronSelector::_eta2Smix
private

The \(\eta(1475)-\eta(1295)\) mixing angle.

Definition at line 495 of file HadronSelector.h.

◆ _etamix

double Herwig::HadronSelector::_etamix
private

The mixing angles for the \(I=0\) mesons containing light quarks.

The \(\eta-\eta'\) mixing angle

Definition at line 450 of file HadronSelector.h.

◆ _f0mix

double Herwig::HadronSelector::_f0mix
private

The \(f_0(1710)-f_0(1370)\) mixing angle.

Definition at line 465 of file HadronSelector.h.

◆ _f1mix

double Herwig::HadronSelector::_f1mix
private

The \(f_1(1420)-f_1(1285)\) mixing angle.

Definition at line 470 of file HadronSelector.h.

◆ _f2mix

double Herwig::HadronSelector::_f2mix
private

The \(f'_2-f_2\) mixing angle.

Definition at line 475 of file HadronSelector.h.

◆ _forbidden

vector<PDPtr> Herwig::HadronSelector::_forbidden
private

The PDG codes of the hadrons which cannot be produced in the hadronization.

Definition at line 436 of file HadronSelector.h.

◆ _h1mix

double Herwig::HadronSelector::_h1mix
private

The \(h_1'-h_1\) mixing angle.

Definition at line 460 of file HadronSelector.h.

◆ _limBottom

double Herwig::HadronSelector::_limBottom
private

Definition at line 597 of file HadronSelector.h.

◆ _limCharm

double Herwig::HadronSelector::_limCharm
private

Definition at line 598 of file HadronSelector.h.

◆ _limExotic

double Herwig::HadronSelector::_limExotic
private

Definition at line 599 of file HadronSelector.h.

◆ _omhmix

double Herwig::HadronSelector::_omhmix
private

The \(\phi(???)-\omega(1650)\) mixing angle.

Definition at line 485 of file HadronSelector.h.

◆ _partons

vector<PDPtr> Herwig::HadronSelector::_partons
private

The PDG codes of the constituent particles allowed.

Definition at line 431 of file HadronSelector.h.

Referenced by partons().

◆ _ph3mix

double Herwig::HadronSelector::_ph3mix
private

The \(\phi_3-\omega_3\) mixing angle.

Definition at line 490 of file HadronSelector.h.

◆ _phi2Smix

double Herwig::HadronSelector::_phi2Smix
private

The \(\phi(1680)-\omega(1420)\) mixing angle.

Definition at line 500 of file HadronSelector.h.

◆ _phimix

double Herwig::HadronSelector::_phimix
private

The \(\phi-\omega\) mixing angle.

Definition at line 455 of file HadronSelector.h.

◆ _pwt

map<long,double> Herwig::HadronSelector::_pwt
private

Weights for quarks and diquarks.

Definition at line 441 of file HadronSelector.h.

Referenced by pwt().

◆ _repwt

vector<vector<vector<double> > > Herwig::HadronSelector::_repwt
private

The weights for the excited meson multiplets.

Definition at line 562 of file HadronSelector.h.

◆ _table

HadronTable Herwig::HadronSelector::_table
private

The table of hadron data.

Definition at line 567 of file HadronSelector.h.

Referenced by massLightestHadron(), and table().

◆ _topt

unsigned int Herwig::HadronSelector::_topt
private

Option for the construction of the tables.

Definition at line 582 of file HadronSelector.h.

◆ _trial

unsigned int Herwig::HadronSelector::_trial
private

Which particles to produce for debugging purposes.

Definition at line 587 of file HadronSelector.h.

◆ _weight1D2

vector<double> Herwig::HadronSelector::_weight1D2
private

The weights for the \(\phantom{1}^1D_2\) multiplets.

Definition at line 541 of file HadronSelector.h.

◆ _weight1P1

vector<double> Herwig::HadronSelector::_weight1P1
private

The weights for the \(\phantom{1}^1P_1\) multiplets.

Definition at line 521 of file HadronSelector.h.

◆ _weight1S0

vector<double> Herwig::HadronSelector::_weight1S0
private

The weights for the various meson multiplets to be used to supress the production of particular states.

The weights for the \(\phantom{1}^1S_0\) multiplets

Definition at line 511 of file HadronSelector.h.

◆ _weight3D1

vector<double> Herwig::HadronSelector::_weight3D1
private

The weights for the \(\phantom{1}^3D_1\) multiplets.

Definition at line 546 of file HadronSelector.h.

◆ _weight3D2

vector<double> Herwig::HadronSelector::_weight3D2
private

The weights for the \(\phantom{1}^3D_2\) multiplets.

Definition at line 551 of file HadronSelector.h.

◆ _weight3D3

vector<double> Herwig::HadronSelector::_weight3D3
private

The weights for the \(\phantom{1}^3D_3\) multiplets.

Definition at line 556 of file HadronSelector.h.

◆ _weight3P0

vector<double> Herwig::HadronSelector::_weight3P0
private

The weights for the \(\phantom{1}^3P_0\) multiplets.

Definition at line 526 of file HadronSelector.h.

◆ _weight3P1

vector<double> Herwig::HadronSelector::_weight3P1
private

The weights for the \(\phantom{1}^3P_1\) multiplets.

Definition at line 531 of file HadronSelector.h.

◆ _weight3P2

vector<double> Herwig::HadronSelector::_weight3P2
private

The weights for the \(\phantom{1}^3P_2\) multiplets.

Definition at line 536 of file HadronSelector.h.

◆ _weight3S1

vector<double> Herwig::HadronSelector::_weight3S1
private

The weights for the \(\phantom{1}^3S_1\) multiplets.

Definition at line 516 of file HadronSelector.h.

◆ belowThreshold_

unsigned int Herwig::HadronSelector::belowThreshold_
private

Option for the selection of hadrons below the pair threshold.

Definition at line 605 of file HadronSelector.h.

◆ lightestHadrons_

map<pair<long,long>,tcPDPair> Herwig::HadronSelector::lightestHadrons_
private

Caches of lightest pairs for speed.

Masses of lightest hadron pair

Definition at line 614 of file HadronSelector.h.

Referenced by massLightestHadronPair().


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