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PYTHIA
8.312
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#include <LHEF3.h>
Public Member Functions | |
| HEPEUP () | |
| Default constructor. | |
| HEPEUP (const HEPEUP &x) | |
| Copy constructor. | |
| HEPEUP & | setEvent (const HEPEUP &x) |
| Copy information from the given HEPEUP. More... | |
| HEPEUP & | operator= (const HEPEUP &x) |
| Assignment operator. | |
| ~HEPEUP () | |
| Destructor. | |
| void | reset () |
| Reset the HEPEUP object. | |
| void | clear () |
| Clear the HEPEUP object. | |
| void | resize (int nup) |
| double | weight () const |
| Return the main weight for this event. | |
| void | resize () |
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 |
| double | SCALUP |
| 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 |
| vector< pair< int, int > > | ICOLUP |
| vector< vector< double > > | PUP |
| vector< double > | VTIMUP |
| vector< double > | SPINUP |
| HEPRUP * | heprup |
| A pointer to the current HEPRUP object. | |
| map< string, double > | weights_detailed |
| The weights associated with this event, as given by the LHAwgt tags. | |
| vector< double > | weights_compressed |
| The weights associated with this event, as given by the LHAweights tags. | |
| LHAscales | scalesSave |
| Contents of the LHAscales tag. | |
| LHAweights | weightsSave |
| Contents of the LHAweights tag (compressed format) | |
| LHArwgt | rwgtSave |
| Contents of the LHArwgt tag (detailed format) | |
| map< string, string > | attributes |
| Any other attributes. | |
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.
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inline |
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.
Copy information from the given HEPEUP.
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.
| vector< pair<int,int> > ICOLUP |
The colour-line indices (first(second) is (anti)colour) 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< vector<double> > PUP |
Lab frame momentum (Px, Py, Pz, E and M in GeV) for the particle entries in this event.
| double SCALUP |
The scale in GeV used in the calculation of the PDF's 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.
| vector<double> VTIMUP |
Invariant lifetime (c*tau, distance from production to decay in mm) for the particle entries in this event.
| pair<double,double> 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.
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