base class for dynamic coordinates management
const Cmomentum operator+(const Cmomentum &v)
addition of vectors !!! WARNING !!! no updating of eta and phi !!!
Creference ref
reference number for the vector
double phi
particle azimuthal angle
void build_etaphi()
build eta-phi from 4-momentum info !!! WARNING !!! !!! computing eta and phi is time-consuming !!! !!...
double perp2() const
computes pT^2
Cmomentum & operator=(const Cmomentum &v)
assignment of vectors
int index
internal particle number
double eta
particle pseudo-rapidity
Cmomentum & operator+=(const Cmomentum &v)
incrementation of vectors !!! WARNING !!! no updating of eta and phi !!!
references used for checksums.
Cmomentum & operator-=(const Cmomentum &v)
decrementation of vectors !!! WARNING !!! no updating of eta and phi !!!