#include <fun4all_coresoftware/blob/master/generators/decayFinder/DecayFinder.h>

Inheritance diagram for DecayFinder:

Collaboration diagram for DecayFinder:

Public Types
typedef std::vector< std::pair < int, int > >	Decay

Public Member Functions
	DecayFinder ()

	DecayFinder (const std::string &name)

virtual	~DecayFinder ()

int	Init (PHCompositeNode *topNode)

int	process_event (PHCompositeNode *topNode)

int	End (PHCompositeNode *topNode)
	Called at the end of all processing.

int	parseDecayDescriptor ()

bool	findDecay (PHCompositeNode *topNode)

bool	findParticle (std::string particle)

int	checkIfCorrectParticle (HepMC::GenParticle *particle, bool &trackFailedPT, bool &trackFailedETA)

int	deleteElement (int arr[], int n, int x)

void	multiplyVectorByScalarAndSort (std::vector< int > &v, int k)

int	get_pdgcode (std::string name)

int	get_charge (std::string name)

int	createDecayNode (PHCompositeNode *topNode)

void	fillDecayNode (PHCompositeNode *topNode, Decay decay)

void	printInfo ()

void	printNode (PHCompositeNode *topNode)

void	setDecayDescriptor (const std::string &decayDescriptor)
	You define a particle decaying with "->", the mother on the left, the decay products on the right.

void	triggerOnDecay (bool trigger)

void	allowPhotons (bool allow)

void	allowPi0 (bool allow)

void	saveDST (bool save)

void	setNodeName (const std::string &name)

Public Member Functions inherited from SubsysReco
	~SubsysReco () override

virtual int	EndRun (const int)
	Called at the end of each run.

virtual int	InitRun (PHCompositeNode *)

virtual int	Reset (PHCompositeNode *)
	Reset.

virtual int	ResetEvent (PHCompositeNode *)
	Clean up after each event.

void	Print (const std::string &="ALL") const override

Public Member Functions inherited from Fun4AllBase
virtual	~Fun4AllBase ()

virtual const std::string	Name () const
	Returns the name of this module.

virtual void	Name (const std::string &name)
	Sets the name of this module.

virtual void	Verbosity (const int ival)
	Sets the verbosity of this module (0 by default=quiet).

virtual void	Verbosity (enu_Verbosity ival)
	Sets the verbosity of this module (0 by default=quiet).

virtual int	Verbosity () const
	Gets the verbosity of this module.

Private Attributes
PHHepMCGenEventMap *	m_geneventmap = nullptr

PHHepMCGenEvent *	m_genevt = nullptr

int	m_counter = 0

int	m_nCandFail_pT = 0

int	m_nCandFail_eta = 0

int	m_nCandFail_pT_and_eta = 0

int	m_nCandReconstructable = 0

bool	m_getChargeConjugate = false

std::string	m_decayDescriptor

bool	m_triggerOnDecay = false

bool	m_allowPi0 = false

bool	m_allowPhotons = false

int	m_mother_ID = 0

std::vector< int >	m_intermediates_ID

std::vector< int >	m_daughters_ID

int	m_nTracksFromMother = 0

std::vector< int >	m_nTracksFromIntermediates

std::vector< int >	m_motherDecayProducts

bool	m_save_dst

DecayFinderContainer_v1 *	m_decayMap = nullptr

Decay	decayChain

std::string	m_nodeName

std::string	m_container_name

Additional Inherited Members
Protected Member Functions inherited from SubsysReco
	SubsysReco (const std::string &name="NONAME")

Detailed Description

Definition at line 18 of file DecayFinder.h.

View newest version in sPHENIX GitHub at line 18 of file DecayFinder.h

Member Typedef Documentation

typedef std::vector<std::pair<int, int> > DecayFinder::Decay

Definition at line 21 of file DecayFinder.h.

View newest version in sPHENIX GitHub at line 21 of file DecayFinder.h

Constructor & Destructor Documentation

DecayFinder::DecayFinder ( )

Definition at line 57 of file DecayFinder.cc.

View newest version in sPHENIX GitHub at line 57 of file DecayFinder.cc

DecayFinder::DecayFinder ( const std::string & name )

explicit

Definition at line 62 of file DecayFinder.cc.

View newest version in sPHENIX GitHub at line 62 of file DecayFinder.cc

virtual DecayFinder::~DecayFinder ( )

inlinevirtual

Definition at line 27 of file DecayFinder.h.

View newest version in sPHENIX GitHub at line 27 of file DecayFinder.h

Member Function Documentation

void DecayFinder::allowPhotons ( bool allow )

inline

Parameters

[in] allow Set to true to allow photons to be associated to your decay

Definition at line 91 of file DecayFinder.h.

View newest version in sPHENIX GitHub at line 91 of file DecayFinder.h

References m_allowPhotons.

Referenced by KFParticle_QA().

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void DecayFinder::allowPi0 ( bool allow )

inline

Parameters

[in] allow Set to true to allow pi zero to be associated to your decay

Definition at line 95 of file DecayFinder.h.

View newest version in sPHENIX GitHub at line 95 of file DecayFinder.h

References m_allowPi0.

Referenced by KFParticle_QA().

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int DecayFinder::checkIfCorrectParticle	(	HepMC::GenParticle *	particle,
		bool &	trackFailedPT,
		bool &	trackFailedETA
	)

Definition at line 400 of file DecayFinder.cc.

View newest version in sPHENIX GitHub at line 400 of file DecayFinder.cc

References kdfinder::abs(), it, listOfResonantPIDs, m_allowPhotons, m_allowPi0, m_daughters_ID, m_getChargeConjugate, m_intermediates_ID, m_nTracksFromIntermediates, multiplyVectorByScalarAndSort(), Fun4AllBase::Verbosity(), and Fun4AllBase::VERBOSITY_MAX.

Referenced by findDecay().

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int DecayFinder::createDecayNode ( PHCompositeNode * topNode )

Definition at line 603 of file DecayFinder.cc.

View newest version in sPHENIX GitHub at line 603 of file DecayFinder.cc

References PHCompositeNode::addNode(), Fun4AllReturnCodes::EVENT_OK, PHNodeIterator::findFirst(), m_container_name, m_decayMap, m_nodeName, and pos().

Referenced by Init().

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int DecayFinder::deleteElement	(	int	arr[],
		int	n,
		int	x
	)

Definition at line 542 of file DecayFinder.cc.

View newest version in sPHENIX GitHub at line 542 of file DecayFinder.cc

References n.

Referenced by findDecay().

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int DecayFinder::End ( PHCompositeNode * )

virtual

Called at the end of all processing.

Reimplemented from SubsysReco.

Definition at line 103 of file DecayFinder.cc.

View newest version in sPHENIX GitHub at line 103 of file DecayFinder.cc

References printInfo(), Fun4AllBase::Verbosity(), and Fun4AllBase::VERBOSITY_SOME.

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void DecayFinder::fillDecayNode	(	PHCompositeNode *	topNode,
		Decay	decay
	)

Definition at line 649 of file DecayFinder.cc.

View newest version in sPHENIX GitHub at line 649 of file DecayFinder.cc

References DecayFinderContainer_v1::insert(), m_decayMap, and m_nodeName.

Referenced by findDecay().

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bool DecayFinder::findDecay ( PHCompositeNode * topNode )

Definition at line 251 of file DecayFinder.cc.

View newest version in sPHENIX GitHub at line 251 of file DecayFinder.cc

References kdfinder::abs(), checkIfCorrectParticle(), decayChain, deleteElement(), fillDecayNode(), PHHepMCGenEventMap::get(), PHHepMCGenEvent::getEvent(), listOfResonantPIDs, m_allowPhotons, m_allowPi0, m_geneventmap, m_genevt, m_getChargeConjugate, m_intermediates_ID, m_mother_ID, m_motherDecayProducts, m_nCandFail_eta, m_nCandFail_pT, m_nCandFail_pT_and_eta, m_nCandReconstructable, m_save_dst, multiplyVectorByScalarAndSort(), n, p, Fun4AllBase::Verbosity(), and Fun4AllBase::VERBOSITY_MAX.

Referenced by process_event().

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bool DecayFinder::findParticle ( std::string particle )

Definition at line 564 of file DecayFinder.cc.

View newest version in sPHENIX GitHub at line 564 of file DecayFinder.cc

References Fun4AllBase::Verbosity(), and Fun4AllBase::VERBOSITY_SOME.

Referenced by get_charge(), get_pdgcode(), and parseDecayDescriptor().

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int DecayFinder::get_charge ( std::string name )

Definition at line 594 of file DecayFinder.cc.

View newest version in sPHENIX GitHub at line 594 of file DecayFinder.cc

References findParticle().

Referenced by parseDecayDescriptor().

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int DecayFinder::get_pdgcode ( std::string name )

Definition at line 586 of file DecayFinder.cc.

View newest version in sPHENIX GitHub at line 586 of file DecayFinder.cc

References findParticle().

Referenced by parseDecayDescriptor().

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int DecayFinder::Init ( PHCompositeNode * )

virtual

Called during initialization. Typically this is where you can book histograms, and e.g. register them to Fun4AllServer (so they can be output to file using Fun4AllServer::dumpHistos() method).

Reimplemented from SubsysReco.

Definition at line 67 of file DecayFinder.cc.

View newest version in sPHENIX GitHub at line 67 of file DecayFinder.cc

References createDecayNode(), m_decayDescriptor, m_save_dst, Fun4AllBase::Name(), parseDecayDescriptor(), Fun4AllBase::Verbosity(), and Fun4AllBase::VERBOSITY_SOME.

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void DecayFinder::multiplyVectorByScalarAndSort	(	std::vector< int > &	v,
		int	k
	)

Definition at line 579 of file DecayFinder.cc.

View newest version in sPHENIX GitHub at line 579 of file DecayFinder.cc

References c, k, and Acts::Test::transform.

Referenced by checkIfCorrectParticle(), and findDecay().

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int DecayFinder::parseDecayDescriptor ( )

Definition at line 110 of file DecayFinder.cc.

View newest version in sPHENIX GitHub at line 110 of file DecayFinder.cc

References kdfinder::abs(), c, Fun4AllReturnCodes::DONOTREGISTERSUBSYSTEM, findParticle(), get_charge(), get_pdgcode(), m_daughters_ID, m_decayDescriptor, m_getChargeConjugate, m_intermediates_ID, m_mother_ID, m_motherDecayProducts, m_nTracksFromIntermediates, m_nTracksFromMother, Fun4AllBase::Name(), pos(), Fun4AllBase::Verbosity(), Fun4AllBase::VERBOSITY_MORE, and Fun4AllBase::VERBOSITY_SOME.

Referenced by Init().

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void DecayFinder::printInfo ( )

Definition at line 655 of file DecayFinder.cc.

View newest version in sPHENIX GitHub at line 655 of file DecayFinder.cc

References m_counter, m_decayDescriptor, m_nCandFail_eta, m_nCandFail_pT, m_nCandFail_pT_and_eta, m_nCandReconstructable, and Fun4AllBase::Name().

Referenced by End().

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void DecayFinder::printNode ( PHCompositeNode * topNode )

Definition at line 669 of file DecayFinder.cc.

View newest version in sPHENIX GitHub at line 669 of file DecayFinder.cc

References DecayFinderContainer_v1::begin(), DecayFinderContainer_v1::end(), and m_nodeName.

Referenced by process_event().

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int DecayFinder::process_event ( PHCompositeNode * )

virtual

Called for each event. This is where you do the real work.

Reimplemented from SubsysReco.

Definition at line 82 of file DecayFinder.cc.

View newest version in sPHENIX GitHub at line 82 of file DecayFinder.cc

References Fun4AllReturnCodes::ABORTEVENT, Fun4AllReturnCodes::EVENT_OK, findDecay(), m_counter, m_decayDescriptor, m_triggerOnDecay, printNode(), Fun4AllBase::Verbosity(), and Fun4AllBase::VERBOSITY_MORE.

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void DecayFinder::saveDST ( bool save )

inline

Parameters

[in] allow Set to true to save any of your decays that are found back to the node tree in a DecayFinderContainer The default name is "decay" and will automatically have "_DecayMap" added to the end

Definition at line 100 of file DecayFinder.h.

View newest version in sPHENIX GitHub at line 100 of file DecayFinder.h

References m_save_dst.

Referenced by KFParticle_QA().

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void DecayFinder::setDecayDescriptor ( const std::string & decayDescriptor )

inline

You define a particle decaying with "->", the mother on the left, the decay products on the right.

Use this function to define the decay you want to find in the HepMC record

Parameters

[in] decayDescriptor the description of the decay chain, this is a string You define the decay with these rules: Set the charge of final state tracks with "^", the particle name on the left and the charge on the right. Accepted charges are +, - and 0 Use the same rules as above for any intermediatee decays but contain the entire decay within curled brackets, "{}" If you also want to find the charge conjugate decay, contain the entire decay descriptor within "[]cc" for charge-conjugate. The "cc" is NOT case sensitive The particle names you use must be kept in the TDatabasePDG class from root (https://root.cern.ch/doc/master/classTDatabasePDG.html). Print this table to see available particles with TDatabasePDG::Instance()->Print() An example of a decay would be: "[B+ -> {D0_bar -> kaon^+ pion^-} pion^+]cc"

Note: There is an internal list of resonances which, if they appear in the record, will be further analysed. For example, the f0(980)->pipi decay is too quick to have a flight distance and so we would only see the pion pair in the detector. If you are looking for B_s0 -> J/psi pipi then the decay of the f0 will be studied for a pipi final state, basically inclusive decays are handled automatically. If you wish to study the f0 decay, add it to your decay descriptor and it will automatically be removed from the "skip list"

Definition at line 81 of file DecayFinder.h.

View newest version in sPHENIX GitHub at line 81 of file DecayFinder.h

References m_decayDescriptor.

Referenced by KFParticle_QA().

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void DecayFinder::setNodeName ( const std::string & name )

inline

Parameters

[in] name Change the default name of the DecayFinderContainer.

Note: This name will still have "_DecayMap" added to the end, this cannot be changed

Definition at line 105 of file DecayFinder.h.

View newest version in sPHENIX GitHub at line 105 of file DecayFinder.h

References m_container_name, and name.

void DecayFinder::triggerOnDecay ( bool trigger )

inline

Parameters

[in] trigger Set to true to allow further processing of events in which your decay appears, if your decay does not appear, all further processing of this event is skipped. This defaults to false so every event is proccessed in F4A

Definition at line 87 of file DecayFinder.h.

View newest version in sPHENIX GitHub at line 87 of file DecayFinder.h

References m_triggerOnDecay.

Referenced by KFParticle_QA().

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