base class for dynamic coordinates management More...

#include <momentum.h>

Collaboration diagram for siscone::Cmomentum:

Public Member Functions
	Cmomentum ()
	default ctor More...

	Cmomentum (double _px, double _py, double _pz, double _E)
	ctor with initialisation More...

	Cmomentum (double _eta, double _phi, Creference _ref)
	ctor with detailed initialisation More...

	~Cmomentum ()
	default dtor More...

double	perp () const
	computes pT More...

double	perp2 () const
	computes pT^2 More...

double	mass () const
	computes m More...

double	mass2 () const
	computes m^2 More...

double	perpmass () const
	transverse mass, mt = sqrt(pt^2+m^2) = sqrt(E^2 - pz^2) More...

double	perpmass2 () const
	transverse mass squared, mt^2 = pt^2+m^2 = E^2 - pz^2 More...

double	Et () const
	computes transverse energy More...

double	Et2 () const
	computes transverse energy (squared) More...

Cmomentum &	operator= (const Cmomentum &v)
	assignment of vectors More...

const Cmomentum	operator+ (const Cmomentum &v)
	addition of vectors !!! WARNING !!! no updating of eta and phi !!! More...

Cmomentum &	operator+= (const Cmomentum &v)
	incrementation of vectors !!! WARNING !!! no updating of eta and phi !!! More...

Cmomentum &	operator-= (const Cmomentum &v)
	decrementation of vectors !!! WARNING !!! no updating of eta and phi !!! More...

void	build_etaphi ()
	build eta-phi from 4-momentum info !!! WARNING !!! !!! computing eta and phi is time-consuming !!! !!! use this whenever you need eta or phi !!! !!! automatically called for single-particle !!! More...

Public Attributes
double	px
	x-momentum More...

double	py
	y-momentum More...

double	pz
	z-momentum More...

double	E
	energy More...

double	eta
	particle pseudo-rapidity More...

double	phi
	particle azimuthal angle More...

int	parent_index
	particle number in the parent list More...

int	index
	internal particle number More...

Creference	ref
	reference number for the vector More...

Detailed Description

base class for dynamic coordinates management

This class contains the information for particle or group of particles management. It includes all Lorentz properties as well as tools for summing them. Note: 'sums' over phi angles are indeed averages. This allows to deal with periodicity at each step

Definition at line 49 of file momentum.h.

Constructor & Destructor Documentation

◆ Cmomentum() [1/3]

siscone::Cmomentum::Cmomentum ( )

default ctor

Definition at line 42 of file momentum.cpp.

References E, eta, index, phi, px, py, pz, and ref.

◆ Cmomentum() [2/3]

siscone::Cmomentum::Cmomentum	(	double	_px,
		double	_py,
		double	_pz,
		double	_E
	)

ctor with initialisation

Definition at line 52 of file momentum.cpp.

References build_etaphi(), E, px, py, pz, and ref.

◆ Cmomentum() [3/3]

siscone::Cmomentum::Cmomentum	(	double	_eta,
		double	_phi,
		Creference	_ref
	)

ctor with detailed initialisation

Definition at line 65 of file momentum.cpp.

References eta, phi, and ref.

◆ ~Cmomentum()

siscone::Cmomentum::~Cmomentum ( )

default dtor

Definition at line 74 of file momentum.cpp.

Member Function Documentation

◆ build_etaphi()

void siscone::Cmomentum::build_etaphi ( )

build eta-phi from 4-momentum info !!! WARNING !!! !!! computing eta and phi is time-consuming !!! !!! use this whenever you need eta or phi !!! !!! automatically called for single-particle !!!

Definition at line 134 of file momentum.cpp.

References E, eta, phi, px, py, and pz.

Referenced by Cmomentum(), siscone::hash_cones::insert(), and siscone::Csplit_merge::save_contents().

◆ Et()

double siscone::Cmomentum::Et ( ) const

inline

computes transverse energy

Definition at line 82 of file momentum.h.

References E, perp2(), and pz.

◆ Et2()

double siscone::Cmomentum::Et2 ( ) const

inline

computes transverse energy (squared)

Definition at line 85 of file momentum.h.

References E, perp2(), and pz.

◆ mass()

double siscone::Cmomentum::mass ( ) const

inline

computes m

Definition at line 70 of file momentum.h.

References mass2().

◆ mass2()

double siscone::Cmomentum::mass2 ( ) const

inline

computes m^2

Definition at line 73 of file momentum.h.

References perp2(), and perpmass2().

Referenced by mass().

◆ operator+()

const Cmomentum siscone::Cmomentum::operator+ ( const Cmomentum & v )

addition of vectors !!! WARNING !!! no updating of eta and phi !!!

Definition at line 96 of file momentum.cpp.

◆ operator+=()

Cmomentum & siscone::Cmomentum::operator+= ( const Cmomentum & v )

incrementation of vectors !!! WARNING !!! no updating of eta and phi !!!

Definition at line 104 of file momentum.cpp.

References E, px, py, pz, and ref.

◆ operator-=()

Cmomentum & siscone::Cmomentum::operator-= ( const Cmomentum & v )

decrementation of vectors !!! WARNING !!! no updating of eta and phi !!!

Definition at line 118 of file momentum.cpp.

References E, px, py, pz, and ref.

◆ operator=()

Cmomentum & siscone::Cmomentum::operator= ( const Cmomentum & v )

assignment of vectors

Definition at line 80 of file momentum.cpp.

References E, eta, phi, px, py, pz, and ref.

◆ perp()

double siscone::Cmomentum::perp ( ) const

inline

computes pT

Definition at line 64 of file momentum.h.

References perp2().

Referenced by siscone::Csplit_merge::save_contents().

◆ perp2()

double siscone::Cmomentum::perp2 ( ) const

inline

computes pT^2

Definition at line 67 of file momentum.h.

References px, and py.

Referenced by siscone::Csplit_merge::add_hardest_protocone_to_jets(), Et(), Et2(), mass2(), siscone::Csplit_merge_ptcomparison::operator()(), and perp().

◆ perpmass()

double siscone::Cmomentum::perpmass ( ) const

inline

transverse mass, mt = sqrt(pt^2+m^2) = sqrt(E^2 - pz^2)

Definition at line 76 of file momentum.h.

References E, and pz.

◆ perpmass2()

double siscone::Cmomentum::perpmass2 ( ) const

inline

transverse mass squared, mt^2 = pt^2+m^2 = E^2 - pz^2

Definition at line 79 of file momentum.h.

References E, and pz.

Referenced by mass2().

Member Data Documentation

◆ E

double siscone::Cmomentum::E

energy

Definition at line 112 of file momentum.h.

Referenced by build_etaphi(), Cmomentum(), Et(), Et2(), siscone::Csplit_merge_ptcomparison::operator()(), operator+=(), operator-=(), operator=(), perpmass(), perpmass2(), and siscone::Csplit_merge::show().

◆ eta

double siscone::Cmomentum::eta

particle pseudo-rapidity

Definition at line 114 of file momentum.h.

Referenced by siscone::Cquadtree::add(), siscone::Csplit_merge::add_hardest_protocone_to_jets(), siscone::Csplit_merge::add_protocones(), siscone::Cvicinity::append_to_vicinity(), siscone::Cvicinity::build(), build_etaphi(), siscone::Cborder_store::Cborder_store(), siscone::Cquadtree::circle_intersect(), Cmomentum(), siscone::hash_cones::insert(), siscone::hash_cones::is_inside(), operator=(), and siscone::Csplit_merge::save_contents().

◆ index

int siscone::Cmomentum::index

internal particle number

Definition at line 117 of file momentum.h.

Referenced by siscone::Csplit_merge::add_hardest_protocone_to_jets(), siscone::Csplit_merge::add_protocones(), siscone::Cvicinity::append_to_vicinity(), and Cmomentum().

◆ parent_index

int siscone::Cmomentum::parent_index

particle number in the parent list

Definition at line 116 of file momentum.h.

Referenced by siscone::Csplit_merge::add_hardest_protocone_to_jets(), and siscone::Csplit_merge::add_protocones().

◆ phi

double siscone::Cmomentum::phi

particle azimuthal angle

Definition at line 115 of file momentum.h.

Referenced by siscone::Cquadtree::add(), siscone::Csplit_merge::add_hardest_protocone_to_jets(), siscone::Csplit_merge::add_protocones(), siscone::Cvicinity::append_to_vicinity(), siscone::Cvicinity::build(), build_etaphi(), siscone::Cborder_store::Cborder_store(), siscone::Cquadtree::circle_intersect(), Cmomentum(), siscone::hash_cones::insert(), siscone::hash_cones::is_inside(), operator=(), and siscone::Csplit_merge::save_contents().

◆ px

double siscone::Cmomentum::px

x-momentum

Definition at line 109 of file momentum.h.

Referenced by build_etaphi(), Cmomentum(), siscone::Csplit_merge_ptcomparison::operator()(), operator+=(), operator-=(), operator=(), perp2(), and siscone::Csplit_merge::show().

◆ py

double siscone::Cmomentum::py

y-momentum

Definition at line 110 of file momentum.h.

Referenced by build_etaphi(), Cmomentum(), siscone::Csplit_merge_ptcomparison::operator()(), operator+=(), operator-=(), operator=(), perp2(), and siscone::Csplit_merge::show().

◆ pz

double siscone::Cmomentum::pz

z-momentum

Definition at line 111 of file momentum.h.

Referenced by build_etaphi(), Cmomentum(), Et(), Et2(), siscone::Csplit_merge_ptcomparison::operator()(), operator+=(), operator-=(), operator=(), perpmass(), perpmass2(), and siscone::Csplit_merge::show().

◆ ref

Creference siscone::Cmomentum::ref

reference number for the vector

Definition at line 122 of file momentum.h.

Referenced by siscone::Cquadtree::circle_intersect(), Cmomentum(), siscone::hash_cones::insert(), siscone::Csplit_merge_ptcomparison::operator()(), operator+=(), operator-=(), and operator=().

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

siscone/momentum.h
siscone/momentum.cpp

The SISCone Jet Algorithm

Version 3.0.6

Public Member Functions

Public Attributes

Detailed Description

Constructor & Destructor Documentation

◆ Cmomentum() [1/3]

◆ Cmomentum() [2/3]

◆ Cmomentum() [3/3]

◆ ~Cmomentum()

Member Function Documentation

◆ build_etaphi()

◆ Et()

◆ Et2()

◆ mass()

◆ mass2()

◆ operator+()

◆ operator+=()

◆ operator-=()

◆ operator=()

◆ perp()

◆ perp2()

◆ perpmass()

◆ perpmass2()

Member Data Documentation

◆ E

◆ eta

◆ index

◆ parent_index

◆ phi

◆ px

◆ py

◆ pz

◆ ref