xAODP4Helpers.h File Reference

#include <cmath>
#include "CxxUtils/fpcompare.h"
#include "xAODBase/IParticle.h"
#include "xAODMissingET/MissingET.h"

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Namespaces
namespace	xAOD
	ICaloAffectedTool is abstract interface for tools checking if 4 mom is in calo affected region.
namespace	xAOD::P4Helpers

Functions
double	xAOD::P4Helpers::deltaRapidity (const xAOD::IParticle &p1, const xAOD::IParticle &p2)
	Computes efficiently \( \Delta{y} \).
double	xAOD::P4Helpers::deltaRapidity (const xAOD::IParticle *const p1, const xAOD::IParticle *const p2)
	Computes efficiently \( \Delta{y} \), pointer args.
double	xAOD::P4Helpers::deltaEta (const xAOD::IParticle &p1, const xAOD::IParticle &p2)
	Computes efficiently \( \Delta{\eta} \).
double	xAOD::P4Helpers::deltaEta (const xAOD::IParticle *const p1, const xAOD::IParticle *const p2)
	Computes efficiently \( \Delta{\eta} \), pointer args.
double	xAOD::P4Helpers::deltaPhi (double phiA, double phiB)
	delta Phi in range [-pi,pi[
double	xAOD::P4Helpers::deltaPhi (const xAOD::IParticle &p4, const double phi)
	delta Phi in range [-pi,pi[ from one xAOD::IParticle reference
double	xAOD::P4Helpers::deltaPhi (const xAOD::IParticle &pA, const xAOD::IParticle &pB)
	delta Phi in range [-pi,pi[ from two xAOD::IParticle references
double	xAOD::P4Helpers::deltaPhi (const xAOD::IParticle *const pA, const xAOD::IParticle *const pB)
	delta Phi in range [-pi,pi[ from two xAOD::IParticle pointers
double	xAOD::P4Helpers::deltaPhi (const xAOD::IParticle &pA, const xAOD::MissingET &met)
	delta Phi in range [-pi,pi[ from an xAOD::IParticle references and an xAOD::MissingEt reference
double	xAOD::P4Helpers::deltaPhi (const xAOD::IParticle *const pA, const xAOD::MissingET *const met)
	delta Phi in range [-pi,pi[ from an xAOD::IParticle pointers and an xAOD::MissingEt poiter
double	xAOD::P4Helpers::deltaR2 (double rapidity1, double phi1, double rapidity2, double phi2)
	\( \Delta{R}^2 \) from bare rapidity,phi
double	xAOD::P4Helpers::deltaR2 (const xAOD::IParticle &p4, double rapidity, double phi, bool useRapidity=true)
	\( \Delta{R}^2 \) from 1 xAOD::IParticle
double	xAOD::P4Helpers::deltaR2 (const xAOD::IParticle &pA, const xAOD::IParticle &pB, bool useRapidity=true)
	delta R^2 from two xAOD::IParticle reference
double	xAOD::P4Helpers::deltaR2 (const xAOD::IParticle *const pA, const xAOD::IParticle *const pB, bool useRapidity=true)
	delta R^2 from two xAOD::IParticle pointers
double	xAOD::P4Helpers::deltaR (double rapidity1, double phi1, double rapidity2, double phi2)
	\( \Delta{R} \) from bare bare rapidity,phi
double	xAOD::P4Helpers::deltaR (const xAOD::IParticle &p4, double rapidity, double phi, bool useRapidity=true)
	\( \Delta{R} \) from 1 xAOD::IParticle
double	xAOD::P4Helpers::deltaR (const xAOD::IParticle &pA, const xAOD::IParticle &pB, bool useRapidity=true)
	delta R from two xAOD::IParticle reference
double	xAOD::P4Helpers::deltaR (const xAOD::IParticle *const pA, const xAOD::IParticle *const pB, bool useRapidity=true)
	delta R from two xAOD::IParticle pointers
bool	xAOD::P4Helpers::isInDeltaR (const xAOD::IParticle &p1, const xAOD::IParticle &p2, double dR, bool useRapidity=true)
	Check if 2 xAOD::IParticle are in a \( \Delta{R} \) cone.
double	xAOD::P4Helpers::deltaAbsP (const xAOD::IParticle &pA, const xAOD::IParticle &pB)
	Get the delta-| \( \vec{p} \)| between two particles.
double	xAOD::P4Helpers::deltaAbsP (const xAOD::IParticle *const pA, const xAOD::IParticle *const pB)
	Get the delta-| \( \vec{p} \)| between two particles using pointers.