UtilDimuon Namespace Reference

Functions
void	GetX1X2 (const SQDimuon *dim, double &x1, double &x2)
void	GetX1X2 (const SQDimuon *dim, float &x1, float &x2)
double	GetX1 (const SQDimuon *dim)
double	GetX2 (const SQDimuon *dim)
void	CalcVar (const SQDimuon *dim, double &mass, double &pT, double &x1, double &x2, double &xF, double &costh, double &phi)
	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, double &costh, double &phi)
	Calculate the key kinematic variables of dimuon. More...

Function Documentation

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

Calculate the key kinematic variables of dimuon.

Typical usage:

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

The costh and phi values are of the Collins-Soper frame. Please look into this function to check the formulae used. The formulae were taken from SQMCDimuon::calcVariable() on 2020-11-05.

Definition at line 52 of file UtilDimuon.cc.

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

Referenced by SQPrimaryParticleGen::generateDimuon(), SQPrimaryParticleGen::generateDrellYan(), SQPrimaryParticleGen::generateJPsi(), SQPrimaryParticleGen::generatePsip(), and AnaSimDst::process_event().

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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
	)

Calculate the key kinematic variables of dimuon.

Definition at line 59 of file UtilDimuon.cc.

References DPGEN::bv_cms, DPGEN::ebeam, DPGEN::mp, DPGEN::p_beam(), DPGEN::p_cms, DPGEN::p_target(), DPGEN::s, and DPGEN::sqrts.

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double UtilDimuon::GetX1

(

const SQDimuon *

dim

)

Definition at line 26 of file UtilDimuon.cc.

References GetX1X2().

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

Definition at line 6 of file UtilDimuon.cc.

References E_BEAM, SQDimuon::get_mom_neg(), SQDimuon::get_mom_pos(), M_P, DPGEN::p_beam(), DPGEN::p_cms, and DPGEN::p_target().

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

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

Definition at line 18 of file UtilDimuon.cc.

References GetX1X2().

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double UtilDimuon::GetX2

(

const SQDimuon *

dim

)

Definition at line 33 of file UtilDimuon.cc.

References GetX1X2().

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