SU2Helper.h

// -*- C++ -*-
//
// SU2Helper.h is a part of Herwig - A multi-purpose Monte Carlo event generator
// Copyright (C) 2002-2019 The Herwig Collaboration
//
// Herwig is licenced under version 3 of the GPL, see COPYING for details.
// Please respect the MCnet academic guidelines, see GUIDELINES for details.
//
#ifndef HERWIG_SU2Helper_H
#define HERWIG_SU2Helper_H
 
#include "ThePEG/PDT/ParticleData.h"
 
namespace Herwig {
 
using namespace ThePEG;
 
struct SU2Helper {
 
  static bool isInSU2Doublet(tcPDPtr p) {
    return abs(p->id()) < 9 || (abs(p->id()) >= 11 && abs(p->id()) < 19);
  }
 
  static bool isSU2Up(tcPDPtr p) { return abs(p->id())%2==0 && isInSU2Doublet(p); }
 
  static bool isSU2Down(tcPDPtr p) { return abs(p->id())%2!=0 && isInSU2Doublet(p); }
 
  static tcPDPtr SU2CC(tcPDPtr p, int familyShift = 0);
 
  static int family(tcPDPtr p);
 
};
 
 
}
 
#endif // HERWIG_SU2Helper_H