UtilDimuon Namespace Reference

Functions
SQDimuon *	FindDimuonByID (const SQDimuonVector *vec, const int id_dim, const bool do_assert=false)
	Find a dimuon by dimuon ID in the given dimuon list. More...
void	GetX1X2 (const SQDimuon *dim, double &x1, double &x2)
	OBSOLETE: Use CalcVar() instead. More...
void	GetX1X2 (const SQDimuon *dim, float &x1, float &x2)
	OBSOLETE: Use CalcVar() instead. More...
double	GetX1 (const SQDimuon *dim)
	OBSOLETE: Use CalcVar() instead. More...
double	GetX2 (const SQDimuon *dim)
	OBSOLETE: Use CalcVar() instead. More...
void	CalcVar (const SQDimuon *dim, double &mass, double &pT, double &x1, double &x2, double &xF)
	Calculate the key kinematic variables of dimuon. More...
void	CalcVar (const TLorentzVector &p_pos, const TLorentzVector &p_neg, double &mass, double &pT, double &x1, double &x2, double &xF)
	Calculate the key kinematic variables of dimuon. More...
void	CalcVar (const SQDimuon *dim, double &mass, double &pT, double &x1, double &x2, double &xF, double &costh, double &phi)
	OBSOLETE: Use CalcVar(dim, mass, pT, x1, x2, xF) and Lab2CollinsSoper(dim, costh, phi) instead. More...
void	CalcVar (const TLorentzVector &p_pos, const TLorentzVector &p_neg, double &mass, double &pT, double &x1, double &x2, double &xF, double &costh, double &phi)
	OBSOLETE: Use CalcVar(dim, mass, pT, x1, x2, xF) and Lab2CollinsSoper(dim, costh, phi) instead. More...
void	Lab2CollinsSoper (const SQDimuon *dim, double &costh, double &phi)
	Convert the momenta of muon pair from Lab frame to Collins-Soper frame. More...
void	Lab2CollinsSoper (const TLorentzVector &p1, const TLorentzVector &p2, double &costh, double &phi)
	Convert the momenta of muon pair from Lab frame to Collins-Soper frame. More...
void	Lab2CollinsSoper (const TVector3 &p1, const TVector3 &p2, double &costh, double &phi)
	Convert the momenta of muon pair from Lab frame to Collins-Soper frame. More...
void	Lab2CollinsSoper (const double px1, const double py1, const double pz1, const double px2, const double py2, const double pz2, double &costh, double &phi)
	Convert the momenta of muon pair from Lab frame to Collins-Soper frame. More...

Function Documentation

CalcVar() [1/4]

void UtilDimuon::CalcVar	(	const SQDimuon *	dim,
		double &	mass,
		double &	pT,
		double &	x1,
		double &	x2,
		double &	xF
	)

Calculate the key kinematic variables of dimuon.

Typical usage:

double mass, pT, x1, x2, xF;
UtilDimuon::CalcVar(dim, mass, pT, x1, x2, xF);

Definition at line 70 of file UtilDimuon.cc.

References SQDimuon::get_mom_neg(), and SQDimuon::get_mom_pos().

Referenced by CalcVar(), AnaSimDst::process_event(), AnaSimDimuon::process_event(), SubsysRecoSignal::process_event(), and AnaEmbeddedData::process_event().

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CalcVar() [2/4]

void UtilDimuon::CalcVar	(	const SQDimuon *	dim,
		double &	mass,
		double &	pT,
		double &	x1,
		double &	x2,
		double &	xF,
		double &	costh,
		double &	phi
	)

OBSOLETE: Use CalcVar(dim, mass, pT, x1, x2, xF) and Lab2CollinsSoper(dim, costh, phi) instead.

Typical usage:

double mass, pT, x1, x2, xF, costh, phi;
UtilDimuon::CalcVar(dim, mass, pT, x1, x2, xF, costh, phi);

Definition at line 112 of file UtilDimuon.cc.

References CalcVar(), SQDimuon::get_mom_neg(), and SQDimuon::get_mom_pos().

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CalcVar() [3/4]

void UtilDimuon::CalcVar	(	const TLorentzVector &	p_pos,
		const TLorentzVector &	p_neg,
		double &	mass,
		double &	pT,
		double &	x1,
		double &	x2,
		double &	xF
	)

Calculate the key kinematic variables of dimuon.

Typical usage:

double mass, pT, x1, x2, xF;
UtilDimuon::CalcVar(mom_pos, mom_neg, mass, pT, x1, x2, xF);

Definition at line 83 of file UtilDimuon.cc.

CalcVar() [4/4]

void UtilDimuon::CalcVar	(	const TLorentzVector &	p_pos,
		const TLorentzVector &	p_neg,
		double &	mass,
		double &	pT,
		double &	x1,
		double &	x2,
		double &	xF,
		double &	costh,
		double &	phi
	)

OBSOLETE: Use CalcVar(dim, mass, pT, x1, x2, xF) and Lab2CollinsSoper(dim, costh, phi) instead.

Definition at line 118 of file UtilDimuon.cc.

References CalcVar(), and Lab2CollinsSoper().

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FindDimuonByID()

SQDimuon * UtilDimuon::FindDimuonByID	(	const SQDimuonVector *	vec,
		const int	id_dim,
		const bool	do_assert = false
	)

Find a dimuon by dimuon ID in the given dimuon list.

This function returns a SQDimuon pointer if successful. Otherwise it returns '0' by default, or aborts when 'do_assert' = true.

Definition at line 12 of file UtilDimuon.cc.

References SQDimuonVector::begin(), SQDimuonVector::end(), and SQDimuon::get_dimuon_id().

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GetX1()

double UtilDimuon::GetX1

(

const SQDimuon *

dim

)

OBSOLETE: Use CalcVar() instead.

Definition at line 47 of file UtilDimuon.cc.

References GetX1X2().

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GetX1X2() [1/2]

void UtilDimuon::GetX1X2	(	const SQDimuon *	dim,
		double &	x1,
		double &	x2
	)

OBSOLETE: Use CalcVar() instead.

Definition at line 25 of file UtilDimuon.cc.

References E_BEAM, SQDimuon::get_mom_neg(), SQDimuon::get_mom_pos(), and M_P.

Referenced by GetX1(), GetX1X2(), and GetX2().

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GetX1X2() [2/2]

void UtilDimuon::GetX1X2	(	const SQDimuon *	dim,
		float &	x1,
		float &	x2
	)

OBSOLETE: Use CalcVar() instead.

Definition at line 38 of file UtilDimuon.cc.

References GetX1X2().

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GetX2()

double UtilDimuon::GetX2

(

const SQDimuon *

dim

)

OBSOLETE: Use CalcVar() instead.

Definition at line 55 of file UtilDimuon.cc.

References GetX1X2().

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Lab2CollinsSoper() [1/4]

void UtilDimuon::Lab2CollinsSoper	(	const double	px1,
		const double	py1,
		const double	pz1,
		const double	px2,
		const double	py2,
		const double	pz2,
		double &	costh,
		double &	phi
	)

Convert the momenta of muon pair from Lab frame to Collins-Soper frame.

The code was written originally by Suguru Tamamushi. Only the cos(theta) and phi are returned at present.

Definition at line 147 of file UtilDimuon.cc.

Lab2CollinsSoper() [2/4]

void UtilDimuon::Lab2CollinsSoper	(	const SQDimuon *	dim,
		double &	costh,
		double &	phi
	)

Convert the momenta of muon pair from Lab frame to Collins-Soper frame.

Definition at line 125 of file UtilDimuon.cc.

References SQDimuon::get_mom_neg(), and SQDimuon::get_mom_pos().

Referenced by CalcVar(), Lab2CollinsSoper(), AnaSimDimuon::process_event(), and AnaEmbeddedData::process_event().

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Lab2CollinsSoper() [3/4]

void UtilDimuon::Lab2CollinsSoper	(	const TLorentzVector &	p1,
		const TLorentzVector &	p2,
		double &	costh,
		double &	phi
	)

Convert the momenta of muon pair from Lab frame to Collins-Soper frame.

Definition at line 131 of file UtilDimuon.cc.

References Lab2CollinsSoper().

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Lab2CollinsSoper() [4/4]

void UtilDimuon::Lab2CollinsSoper	(	const TVector3 &	p1,
		const TVector3 &	p2,
		double &	costh,
		double &	phi
	)

Convert the momenta of muon pair from Lab frame to Collins-Soper frame.

Definition at line 137 of file UtilDimuon.cc.

References Lab2CollinsSoper().

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