base class for dynamic coordinates management More...
#include <momentum.h>
Inheritance diagram for siscone_spherical::CSphmomentum:
Collaboration diagram for siscone_spherical::CSphmomentum:
Public Member Functions | |
| CSphmomentum () | |
| default ctor | |
| CSphmomentum (CSph3vector &init, double E=0.0) | |
| init from a 3-vect | |
| CSphmomentum (double _px, double _py, double _pz, double _E) | |
| ctor with initialisation | |
| ~CSphmomentum () | |
| ctor with detailed initialisation | |
| double | mass () const |
| computes m | |
| double | mass2 () const |
| computes m^2 | |
| double | perpmass () const |
| transverse mass, mt = sqrt(pt^2+m^2) = sqrt(E^2 - pz^2) | |
| double | perpmass2 () const |
| transverse mass squared, mt^2 = pt^2+m^2 = E^2 - pz^2 | |
| double | Et () const |
| computes transverse energy | |
| double | Et2 () const |
| computes transverse energy (squared) | |
| CSphmomentum & | operator= (const CSphmomentum &v) |
| assignment of vectors | |
| const CSphmomentum | operator+ (const CSphmomentum &v) |
| addition of vectors !!! WARNING !!! no updating of eta and phi !!! | |
| CSphmomentum & | operator+= (const CSphmomentum &v) |
| incrementation of vectors !!! WARNING !!! no updating of eta and phi !!! | |
| CSphmomentum & | operator-= (const CSphmomentum &v) |
| decrementation of vectors !!! WARNING !!! no updating of eta and phi !!! | |
Public Attributes | |
| double | E |
| energy | |
| int | parent_index |
| particle number in the parent list | |
| int | index |
| internal particle number | |
Detailed Description
base class for dynamic coordinates management
This class contains the information for particle or group of particles management. It is adapted to use spherical geometry, where, for our purposes, the only time-consuming operation we need is the computation of the norm. To compute it once-and-for-all and store it in a local variable, you should call the 'build_norm' method. On top of that, the angle phi is computed from the x-axis and theta from the "north pole".
Definition at line 158 of file momentum.h.
Constructor & Destructor Documentation
The documentation for this class was generated from the following files:
- siscone/spherical/momentum.h
- siscone/spherical/momentum.cpp