StDalitz.cc

/***************************************************************************
 *
 * $Id: StDalitz.cc,v 1.1 2010/01/28 20:01:00 jwebb Exp $
 *
 * Author: Thomas Ullrich, May 99 (based on Geant4 code, see below) 
 ***************************************************************************
 *
 * The design of the StParticleDefinition class and all concrete
 * classes derived from it is largely based on the design of the 
 * G4ParticleDefinition class from Geant4 (RD44).
 * Although the code is in large parts different (modified or rewritten)
 * and adapted to the STAR framework the basic idea stays the same.
 *
 ***************************************************************************
 *
 * $Log: StDalitz.cc,v $
 * Revision 1.1  2010/01/28 20:01:00  jwebb
 * Added two 'STAR' particle classes.  The (fake) Dalitz particle, which
 * is really just a pi0 with its Dalitz decay branch at 100%.  It is added
 * so the embedding team can access it by the geant ID defined in gstar_part.g.
 * The hypertriton is also added.
 *
 * In both cases we define a fake PDG id in the header file StarPDGEncoding.hh.
 *
 * Revision 1.1  1999/05/14 18:48:16  ullrich
 * Initial Revision
 *
 **************************************************************************/
#include "StDalitz.hh" 
#include "PhysicalConstants.h"

StDalitz::StDalitz(const string  &  aName,  
                       double           mass,     
                       double           width,
                       double           charge,   
                       int              iSpin,
                       int              iParity,
                       int              iConjugation,
                       int              iIsospin,   
                       int              iIsospinZ, 
                       int              gParity,
                       const string  &  pType,
                       int              lepton,
                       int              baryon,
                       int              encoding,
                       bool             stable,
                       double           lifetime)
    : StMeson(aName, mass, width, charge, iSpin, iParity,
              iConjugation, iIsospin, iIsospinZ, gParity,
              pType, lepton, baryon, encoding, stable,
              lifetime) {/* noop */}

// ......................................................................
// ...                 static member definitions                      ...
// ......................................................................
//     
//    Arguments for constructor are as follows
//               name             mass          width         charge
//             2*spin           parity  C-conjugation
//          2*Isospin       2*Isospin3       G-parity
//               type    lepton number  baryon number   PDG encoding
//             stable         lifetime   
//
#include "StarPDGEncoding.hh" 
StDalitz StDalitz::mDalitz(
                "dalitz",   0.1349764*GeV,       0.0*MeV,         0.0, 
                    0,              -1,            +1,          
                    2,               0,            -1,             
              "meson",               0,             0,         kDalitz,
                false,       8.4e-8*nanosecond
);