Photos Class Reference

Collaboration diagram for Photos:

Public Types
enum	MomentumUnits { DEFAULT_MOMENTUM =-1, MEV, GEV }

Public Member Functions
Photos &	getInstance ()

Static Public Member Functions
static void	initialize ()
static void	iniInfo ()
static void	processParticle (PhotosParticle *p)
static void	processBranch (PhotosParticle *p)
static void	suppressBremForDecay (int count, int motherID,...)
static void	suppressBremForBranch (int count, int motherID,...)
static void	suppressAll ()
static void	forceBremForDecay (int count, int motherID,...)
static void	forceBremForBranch (int count, int motherID,...)
static void	IPHEKL_setPi0KLnoEmission (int m)
static bool	IPHQRK_setQarknoEmission (int MODCOR, int PDGID)
static void	createHistoryEntries (bool flag, int status)
static void	ignoreParticlesOfStatus (int status)
static void	deIgnoreParticlesOfStatus (int status)
static bool	isStatusCodeIgnored (int status)
static void	setRandomGenerator (double(*gen)())
static void	setSeed (int iseed1, int iseed2)
static void	maxWtInterference (double interference)
static void	setInfraredCutOff (double cut_off)
static void	setAlphaQED (double alpha)
static void	setInterference (bool interference)
static void	setDoubleBrem (bool doub)
static void	setQuatroBrem (bool quatroBrem)
static void	setCorrectionWtForW (bool corr)
static void	setExponentiation (bool expo)
static void	setPairEmission (bool ifpair)
static void	setPhotonEmission (bool ifphot)
static void	setMeCorrectionWtForScalar (bool corr)
static void	setMeCorrectionWtForW (bool corr)
static void	setMeCorrectionWtForZ (bool corr)
static void	setTopProcessRadiation (bool top)
static void	setMomentumUnit (MomentumUnits unit)
static void	setStopAtCriticalError (bool stop)
static void	initializeKinematicCorrections (int flag)
static void	forceMassFrom4Vector (bool flag)
static void	forceMassFromEventRecord (int pdgid)
static void	forceMass (int pdgid, double mass)
static void	setMomentumConservationThreshold (double threshold)
static void	setEventNo (int iEvt)

Static Public Attributes
static const int	VER_MAJOR =3
static const int	VER_MINOR =64
static const int	DAT_DAY =18
static const int	DAT_MONTH =2
static const int	DAT_YEAR =20
static enum Photospp::Photos::MomentumUnits	momentumUnit = Photos::DEFAULT_MOMENTUM
static int	EventNo =0
static bool	isSuppressed =false
static bool	massFrom4Vector =true
static vector< vector< int > * > *	supBremList = 0
static vector< vector< int > * > *	forceBremList = 0
static vector< pair< int, double > * > *	forceMassList = 0
static vector< int > *	ignoreStatusCodeList = 0
static double	momentum_conservation_threshold = 0.1
static bool	meCorrectionWtForScalar =false
static bool	meCorrectionWtForZ =false
static bool	meCorrectionWtForW =false
static bool	isCreateHistoryEntries =false
static bool	IfPair =false
static bool	IfPhot =true
static int	historyEntriesStatus = 3
static double(*	randomDouble )() = PhotosRandom::randomReal

Private Member Functions
	Photos (const Photos &)
Photos &	operator= (const Photos &)

Static Private Attributes
static Photos	_instance

Detailed Description

Definition at line 31 of file Photos.h.

Member Enumeration Documentation

enum MomentumUnits

Units

Definition at line 38 of file Photos.h.

Member Function Documentation

void createHistoryEntries ( bool  flag, int  status  )

static

If event record allows it, create history entries of particles before Photos processing

Definition at line 343 of file Photos.cxx.

References Photos::historyEntriesStatus, Photos::ignoreParticlesOfStatus(), and Photos::isCreateHistoryEntries.

void deIgnoreParticlesOfStatus ( int  status )

static

Remove 'status' from the list of ignored status codes

Definition at line 373 of file Photos.cxx.

References Photos::ignoreStatusCodeList.

void forceBremForBranch ( int  count, int  motherID,   ...  )

static

Force processing of a whole decay branch

Definition at line 286 of file Photos.cxx.

References Photos::forceBremList.

void forceBremForDecay ( int  count, int  motherID,   ...  )

static

Force processing of a single decay

Definition at line 270 of file Photos.cxx.

References Photos::forceBremList.

void forceMass ( int  pdgid, double  mass  )

static

When particles with PDGID and -PDGID will be processed by Photos, their mass value will be given by user instead of being calculated from 4-vector.

This works only if 'forceMassFrom4Vector' is set to 'true' (default) This routine may be executed several times with different PDGID values.

Definition at line 458 of file Photos.cxx.

References Photos::forceMassList.

static void forceMassFrom4Vector ( bool  flag )

inlinestatic

Force mass value to be sqrt(e^2-p^2) for all particle momenta taken from event record. May be important for numerical stability. May lead to faulty results due to rounding errors for hiper-relativistic electron, for example.

Definition at line 155 of file Photos.h.

References Photos::massFrom4Vector.

void forceMassFromEventRecord ( int  pdgid )

static

When particles with PDGID and -PDGID will be processed by Photos, their mass value will be taken from event record instead of being calculated from 4-vector.

This works only if 'forceMassFrom4Vector' is set to 'true' (default) This routine may be executed several times with different PDGID values.

Definition at line 452 of file Photos.cxx.

References Photos::forceMassList.

Photos& getInstance ( )

inline

Get instance of Photos

Definition at line 231 of file Photos.h.

void ignoreParticlesOfStatus ( int  status )

static

Ignore particles with given status code

Definition at line 356 of file Photos.cxx.

References Photos::ignoreStatusCodeList.

void iniInfo ( )

static

Prints info on Photos initialization (reinitialization) status

Definition at line 181 of file Photos.cxx.

References Photos::IfPair, Photos::IfPhot, Photos::meCorrectionWtForScalar, Photos::meCorrectionWtForW, and Photos::meCorrectionWtForZ.

void initialize ( )

static

Initalize Photos with the parameters previously set via the setter methods

Definition at line 53 of file Photos.cxx.

References Photos::IfPair, Photos::IfPhot, Photos::initializeKinematicCorrections(), Photos::IPHEKL_setPi0KLnoEmission(), Photos::maxWtInterference(), Photos::meCorrectionWtForW, Photos::meCorrectionWtForZ, Photos::setExponentiation(), and Photos::suppressBremForDecay().

static void initializeKinematicCorrections ( int  flag )

inlinestatic

Initialize kinematic corrections

Definition at line 149 of file Photos.h.

void IPHEKL_setPi0KLnoEmission ( int  m )

static

Block emissions id decays pi0 and K_L -> gamma e+ e- 1 = no suppression 2 (default) = suppressed emissions in K_L -> gamma e+ e- ... and all pi0 decays

Definition at line 304 of file Photos.cxx.

References Photos::forceBremForDecay(), and Photos::suppressBremForDecay().

bool isStatusCodeIgnored ( int  status )

static

Returns 'true' if status code is ignored

Definition at line 387 of file Photos.cxx.

References Photos::ignoreStatusCodeList.

static void maxWtInterference ( double  interference )

inlinestatic

Maximum interference weight

Definition at line 97 of file Photos.h.

void processBranch ( PhotosParticle *  p )

static

Process decay of whole decay branch starting from given particle

Definition at line 231 of file Photos.cxx.

References PhotosBranch::createBranches(), and PhotosParticle::getDecayTree().

void processParticle ( PhotosParticle *  p )

static

Process decay of single particle

Definition at line 225 of file Photos.cxx.

References PhotosBranch::getSuppressionStatus(), and PhotosBranch::process().

static void setAlphaQED ( double  alpha )

inlinestatic

Coupling constant alpha QED

Definition at line 103 of file Photos.h.

static void setDoubleBrem ( bool  doub )

inlinestatic

Set double bremsstrahlung generation

Definition at line 109 of file Photos.h.

static void setEventNo ( int  iEvt )

inlinestatic

set event no

Definition at line 177 of file Photos.h.

References Photos::EventNo.

void setExponentiation ( bool  expo )

static

Set exponentiation mode

Definition at line 403 of file Photos.cxx.

References Photos::initializeKinematicCorrections(), Photos::setDoubleBrem(), Photos::setInfraredCutOff(), and Photos::setQuatroBrem().

static void setInfraredCutOff ( double  cut_off )

inlinestatic

Minimal energy (in units of decaying particle mass) for photons to be explicitly generated

Definition at line 100 of file Photos.h.

static void setInterference ( bool  interference )

inlinestatic

Key for interference, matrix element weight

Definition at line 106 of file Photos.h.

void setMeCorrectionWtForScalar ( bool  corr )

static

Switch for complete effects of matrix element (in scalar to 2 scalars decays)

Definition at line 435 of file Photos.cxx.

References Photos::meCorrectionWtForScalar.

void setMeCorrectionWtForW ( bool  corr )

static

Switch for complete effects of matrix element (in leptonic W decays)

Definition at line 426 of file Photos.cxx.

References Photos::meCorrectionWtForW.

void setMeCorrectionWtForZ ( bool  corr )

static

Switch for complete effects of matrix element (in leptonic Z decays)

Definition at line 431 of file Photos.cxx.

References Photos::meCorrectionWtForZ.

static void setMomentumConservationThreshold ( double  threshold )

inlinestatic

set energy momentum conservation threshold

Definition at line 174 of file Photos.h.

References Photos::momentum_conservation_threshold.

static void setMomentumUnit ( MomentumUnits  unit )

inlinestatic

Set momentum unit

Definition at line 139 of file Photos.h.

void setPairEmission ( bool  ifpair )

static

Set pair emission

Definition at line 416 of file Photos.cxx.

References Photos::IfPair.

void setPhotonEmission ( bool  ifphot )

static

Set photon emission

Definition at line 421 of file Photos.cxx.

References Photos::IfPhot.

static void setQuatroBrem ( bool  quatroBrem )

inlinestatic

Set bremsstrahlung generation up to multiplicity of 4

Definition at line 112 of file Photos.h.

void setRandomGenerator ( double(*)()  gen )

static

Substitute build-in generator with external one

Definition at line 397 of file Photos.cxx.

References Photos::randomDouble.

static void setSeed ( int  iseed1, int  iseed2  )

inlinestatic

Seed for RANMAR used by fortran part of the Photos

Definition at line 94 of file Photos.h.

static void setTopProcessRadiation ( bool  top )

inlinestatic

Set photon emission in top pair production in quark (gluon) pair annihilation

Definition at line 136 of file Photos.h.

static void suppressAll ( )

inlinestatic

Suppress all processing. Only forced decays will be processed.

Definition at line 62 of file Photos.h.

References Photos::isSuppressed.

void suppressBremForBranch ( int  count, int  motherID,   ...  )

static

Suppress processing of whole decay branch

Definition at line 254 of file Photos.cxx.

References Photos::supBremList.

void suppressBremForDecay ( int  count, int  motherID,   ...  )

static

Suppress processing of a single decay

Definition at line 238 of file Photos.cxx.

References Photos::supBremList.

Field Documentation

int EventNo =0

static

Is event No

Definition at line 182 of file Photos.h.

vector< vector< int > * > * forceBremList = 0

static

List of forced decays

Definition at line 194 of file Photos.h.

vector< pair< int, double > * > * forceMassList = 0

static

List of forced mass values

Definition at line 197 of file Photos.h.

int historyEntriesStatus = 3

static

Status of history entries

Definition at line 225 of file Photos.h.

bool IfPair =false

static

Flag for generating emission of pairs

Definition at line 218 of file Photos.h.

bool IfPhot =true

static

Flag for generating emission of photons

Definition at line 221 of file Photos.h.

vector< int > * ignoreStatusCodeList = 0

static

List of ignored status codes

Definition at line 200 of file Photos.h.

bool isCreateHistoryEntries =false

static

Flag for creating historic entries

Definition at line 215 of file Photos.h.

bool isSuppressed =false

static

Is in suppressed mode

Definition at line 185 of file Photos.h.

bool massFrom4Vector =true

static

Is mass from 4-vector or from event record

Definition at line 188 of file Photos.h.

bool meCorrectionWtForScalar =false

static

Flag for complete effects of matrix element (in scalars decays)

Definition at line 206 of file Photos.h.

bool meCorrectionWtForW =false

static

Flag for complete effects of matrix element (in leptonic W decays)

Definition at line 212 of file Photos.h.

bool meCorrectionWtForZ =false

static

Flag for complete effects of matrix element (in leptonic Z decays)

Definition at line 209 of file Photos.h.

double momentum_conservation_threshold = 0.1

static

Threshold for momentum conservation check

Definition at line 203 of file Photos.h.

double(* randomDouble)() = PhotosRandom::randomReal

static

Pointer to random generator function

Definition at line 228 of file Photos.h.

vector< vector< int > * > * supBremList = 0

static

List of suppressed decays

Definition at line 191 of file Photos.h.

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

• Photos.h
• Photos.cxx