PYTHIA
8.312
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The HVStringFlav class is used to select HV-quark and HV-hadron flavours. More...
#include <HiddenValleyFragmentation.h>
Public Member Functions | |
HVStringFlav () | |
Constructor. | |
~HVStringFlav () | |
Destructor. | |
void | init () override |
Initialize data members. More... | |
FlavContainer | pick (FlavContainer &flavOld, double, double, bool) override |
Pick a new flavour (including diquarks) given an incoming one. More... | |
int | combine (FlavContainer &flav1, FlavContainer &flav2) override |
Combine two flavours (including diquarks) to produce a hadron. More... | |
int | idLightestNeutralMeson () override |
Lightest flavour-neutral meson. | |
Public Member Functions inherited from StringFlav | |
StringFlav () | |
Constructor. | |
virtual | ~StringFlav () |
Destructor. | |
virtual void | init (double kappaRatio, double strangeFac, double probQQmod) |
Initialise parameters when using close packing. More... | |
int | pickLightQ () |
Pick a light d, u or s quark according to fixed ratios. | |
virtual FlavContainer | pickGauss (FlavContainer &flavOld, bool allowPop=true) |
virtual FlavContainer | pickThermal (FlavContainer &flavOld, double pT, double kappaRatio) |
virtual int | combineId (int id1, int id2, bool keepTrying=true) |
Ditto, simplified input argument for simple configurations. | |
virtual pair< int, int > | combineDiquarkJunction (int id1, int id2, int id3) |
Combine three (di-) quark flavours into two hadrons. More... | |
virtual int | combineToLightest (int id1, int id2) |
Combine two flavours to produce a hadron with lowest possible mass. More... | |
virtual int | getHadronIDwin () |
Return chosen hadron in case of thermal model. | |
virtual int | combineLastThermal (FlavContainer &flav1, FlavContainer &flav2, double pT, double kappaRatio) |
virtual int | getHadronID (FlavContainer &flav1, FlavContainer &flav2, double pT=-1.0, double kappaRatio=0, bool finalTwo=false) |
virtual double | getHadronMassWin (int idHad) |
Return hadron mass. Used one if present, pick otherwise. | |
void | assignPopQ (FlavContainer &flav) |
Assign popcorn quark inside an original (= rank 0) diquark. More... | |
int | makeDiquark (int id1, int id2, int idHad=0) |
Combine two quarks to produce a diquark. More... | |
void | addQuarkDiquark (vector< pair< int, int > > &quarkCombis, int qID, int diqID, int hadronID) |
Check if quark-diquark combination should be added. If so add. | |
int | getMesonSpinCounter (int hadronID) |
Get spin counter for mesons. | |
double | getFlavourSpinRatios (int i, int j) |
void | variations (int idIn, bool early, bool noChoice) |
Calculate the flavor variations. More... | |
Public Member Functions inherited from PhysicsBase | |
void | initInfoPtr (Info &infoPtrIn) |
This function is called from above for physics objects used in a run. More... | |
virtual | ~PhysicsBase () |
Empty virtual destructor. | |
bool | flag (string key) const |
Shorthand to read settings values. | |
int | mode (string key) const |
double | parm (string key) const |
string | word (string key) const |
vector< bool > | fvec (string key) const |
vector< int > | mvec (string key) const |
vector< double > | pvec (string key) const |
vector< string > | wvec (string key) const |
Additional Inherited Members | |
Public Types inherited from PhysicsBase | |
enum | Status { INCOMPLETE = -1, COMPLETE = 0, CONSTRUCTOR_FAILED, INIT_FAILED, LHEF_END, LOWENERGY_FAILED, PROCESSLEVEL_FAILED, PROCESSLEVEL_USERVETO, MERGING_FAILED, PARTONLEVEL_FAILED, PARTONLEVEL_USERVETO, HADRONLEVEL_FAILED, CHECK_FAILED, OTHER_UNPHYSICAL, HEAVYION_FAILED, HADRONLEVEL_USERVETO } |
Enumerate the different status codes the event generation can have. | |
Protected Member Functions inherited from StringFlav | |
virtual void | initDerived () |
Initialise derived parameters. More... | |
Protected Member Functions inherited from PhysicsBase | |
PhysicsBase () | |
Default constructor. | |
virtual void | onInitInfoPtr () |
virtual void | onBeginEvent () |
This function is called in the very beginning of each Pythia::next call. | |
virtual void | onEndEvent (Status) |
virtual void | onStat () |
This function is called from the Pythia::stat() call. | |
void | registerSubObject (PhysicsBase &pb) |
Register a sub object that should have its information in sync with this. | |
Protected Attributes inherited from StringFlav | |
bool | suppressLeadingB |
Settings for Gaussian model. | |
bool | mT2suppression |
bool | useWidthPre |
double | probQQtoQ |
double | probStoUD |
double | probSQtoQQ |
double | probQQ1toQQ0 |
double | probQandQQ |
double | probQandS |
double | probQandSinQQ |
double | probQQ1corr |
double | probQQ1corrInv |
double | probQQ1norm |
double | probQQ1join [4] |
double | mesonRate [4][6] |
double | mesonRateSum [4] |
double | mesonMix1 [2][6] |
double | mesonMix2 [2][6] |
double | etaSup |
double | etaPrimeSup |
double | decupletSup |
double | baryonCGSum [6] |
double | baryonCGMax [6] |
double | popcornRate |
double | popcornSpair |
double | popcornSmeson |
double | barCGMax [8] |
double | scbBM [3] |
double | popFrac |
double | popS [3] |
double | dWT [3][7] |
double | lightLeadingBSup |
double | heavyLeadingBSup |
bool | qqKappa |
double | closePackingFacPT2 |
double | closePackingFacQQ2 |
double | probStoUDSav |
double | probQQtoQSav |
double | probSQtoQQSav |
double | probQQ1toQQ0Sav |
double | alphaQQSav |
double | sigmaHad |
double | widthPreStrange |
double | widthPreDiquark |
bool | thermalModel |
Settings for thermal model. | |
bool | mesonNonetL1 |
double | temperature |
double | tempPreFactor |
int | nNewQuark |
double | mesMixRate1 [2][6] |
double | mesMixRate2 [2][6] |
double | mesMixRate3 [2][6] |
double | baryonOctWeight [6][6][6][2] |
double | baryonDecWeight [6][6][6][2] |
bool | closePacking |
Settings used by both models. | |
double | exponentMPI |
double | exponentNSP |
map< int, vector< pair< int, int > > > | hadronConstIDs |
Key = hadron id, value = list of constituent ids. | |
map< int, vector< pair< int, int > > > | possibleHadrons |
map< int, vector< double > > | possibleRatePrefacs |
Key = initial (di)quark id, value = prefactor to multiply rate. | |
map< pair< int, int >, vector< pair< int, int > > > | possibleHadronsLast |
Similar, but for combining the last two (di)quarks. Key = (di)quark pair. | |
map< pair< int, int >, vector< double > > | possibleRatePrefacsLast |
int | hadronIDwin |
Selection in thermal model. | |
int | idNewWin |
double | hadronMassWin |
Protected Attributes inherited from PhysicsBase | |
Info * | infoPtr = {} |
Settings * | settingsPtr = {} |
Pointer to the settings database. | |
ParticleData * | particleDataPtr = {} |
Pointer to the particle data table. | |
Logger * | loggerPtr = {} |
Pointer to logger. | |
HadronWidths * | hadronWidthsPtr = {} |
Pointer to the hadron widths data table. | |
Rndm * | rndmPtr = {} |
Pointer to the random number generator. | |
CoupSM * | coupSMPtr = {} |
Pointers to SM and SUSY couplings. | |
CoupSUSY * | coupSUSYPtr = {} |
BeamSetup * | beamSetupPtr = {} |
BeamParticle * | beamAPtr = {} |
BeamParticle * | beamBPtr = {} |
BeamParticle * | beamPomAPtr = {} |
BeamParticle * | beamPomBPtr = {} |
BeamParticle * | beamGamAPtr = {} |
BeamParticle * | beamGamBPtr = {} |
BeamParticle * | beamVMDAPtr = {} |
BeamParticle * | beamVMDBPtr = {} |
PartonSystems * | partonSystemsPtr = {} |
Pointer to information on subcollision parton locations. | |
SigmaTotal * | sigmaTotPtr = {} |
Pointers to the total/elastic/diffractive cross sections. | |
SigmaCombined * | sigmaCmbPtr = {} |
set< PhysicsBase * > | subObjects |
UserHooksPtr | userHooksPtr |
Static Protected Attributes inherited from StringFlav | |
static const int | mesonMultipletCode [6] = { 1, 3, 10003, 10001, 20003, 5} |
Constants: could only be changed in the code itself. More... | |
static const double | baryonCGOct [6] = { 0.75, 0.5, 0., 0.1667, 0.0833, 0.1667} |
static const double | baryonCGDec [6] = { 0., 0., 1., 0.3333, 0.6667, 0.3333} |
The HVStringFlav class is used to select HV-quark and HV-hadron flavours.
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overridevirtual |
Combine two flavours (including diquarks) to produce a hadron.
Combine two HV-flavours to produce an HV-hadron.
Check whether incoming diquarks. No solution for diquark-antidiquark.
HV-baryon from diquark plus quark.
Positive and negative flavour. Note that with kinetic mixing the Fv are really intended to represent qv, so remap.
Pick HV-meson code: full spectrum of codes or simplified option.
Pick spin either 0 or 1. Include suppression of eta_1 pseudoscalar.
Done.
Reimplemented from StringFlav.
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overridevirtual |
Initialize data members.
The HVStringFlav class is used to select HV-quark and HV-hadron flavours.
Initialize data members of the flavour generation.
Read in data from Settings.
Sum of flavour suppression factors. Auxiliaries for eta1 suppression.
Some settings not allowed for this scenario. (Plus several more?)
Overwrite some HV-hadron names when simplified displayed flavours.
Also overwrite hv-quark masses to agree in internal fragmentation.
Switch off Zv decays to qv's above the nFlav number.
Reimplemented from StringFlav.
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overridevirtual |
Pick a new flavour (including diquarks) given an incoming one.
Pick a new HV-flavour given an incoming one.
Initial values for old and new flavour.
HV-diquark selection, leading to HV-baryon production.
Pick new HV-flavour according to suppression factors; keep track of sign. Prepare for suppression of eta_1 pseudoscalar, the highest-numbered state.
Done.
Reimplemented from StringFlav.