ThePEG is hosted by Hepforge, IPPP Durham
ThePEG  2.1.0
ThePEG::HEPEUP Class Reference

The HEPEUP class is a simple container corresponding to the Les Houches accord (hep-ph/0109068) common block with the same name. More...

#include <LesHouches.h>

Public Member Functions

void resize (int nup)
 Set the NUP variable, corresponding to the number of particles in the current event, to nup, and resize all relevant vectors accordingly.
 
void resize ()
 Assuming the NUP variable, corresponding to the number of particles in the current event, is correctly set, resize the relevant vectors accordingly.
 
Standard constructors and destructors.
 HEPEUP ()
 Default constructor.
 

Public Attributes

int NUP
 The number of particle entries in the current event.
 
int IDPRUP
 The subprocess code for this event (as given in LPRUP).
 
double XWGTUP
 The weight for this event.
 
pair< double, double > XPDWUP
 The PDF weights for the two incoming partons. More...
 
double SCALUP
 The scale in GeV used in the calculation of the PDF's in this event.
 
double AQEDUP
 The value of the QED coupling used in this event.
 
double AQCDUP
 The value of the QCD coupling used in this event.
 
vector< long > IDUP
 The PDG id's for the particle entries in this event.
 
vector< int > ISTUP
 The status codes for the particle entries in this event.
 
vector< pair< int, int > > MOTHUP
 Indices for the first and last mother for the particle entries in this event.
 
vector< pair< int, int > > ICOLUP
 The colour-line indices (first(second) is (anti)colour) for the particle entries in this event.
 
vector< vector< double > > PUP
 Lab frame momentum (Px, Py, Pz, E and M in GeV) for the particle entries in this event.
 
vector< double > VTIMUP
 Invariant lifetime (c*tau, distance from production to decay im mm) for the particle entries in this event.
 
vector< double > SPINUP
 Spin info for the particle entries in this event given as the cosine of the angle between the spin vector of a particle and the 3-momentum of the decaying particle, specified in the lab frame.
 

Detailed Description

The HEPEUP class is a simple container corresponding to the Les Houches accord (hep-ph/0109068) common block with the same name.

The members are named in the same way as in the common block. However, fortran arrays are represented by vectors, except for the arrays of length two which are represented by pair objects.

Definition at line 128 of file LesHouches.h.

Member Data Documentation

◆ XPDWUP

pair<double,double> ThePEG::HEPEUP::XPDWUP

The PDF weights for the two incoming partons.

Note that this variable is not present in the current LesHouches accord (hep-ph/0109068), hopefully it will be present in a future accord.

Definition at line 190 of file LesHouches.h.


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