g4g5_x_g4g5_local.h

Go to the documentation of this file.

#ifndef G4G5_X_G4G5_S_H
#define G4G5_X_G4G5_S_H
 
 
 
#include "meas/hadron/hadron_corr_s.h"
#include "meas/hadron/stag_propShift_s.h"
 
namespace Chroma {
 
/*
 
This is code to compute the local pseudoscalars 
using staggered fermions.
 
*/
 
  class staggered_hadron_corr ; 
 
  class g4g5_x_g4g5_local_meson  : public staggered_hadron_corr
  {
 
 
  public :
    void compute(LatticeStaggeredPropagator& quark_prop_A,
                 LatticeStaggeredPropagator& quark_prop_B,
                 int j_decay) ; 
 
  // This is very ugly
   void compute(multi1d<LatticeStaggeredPropagator>& quark_props,
                         int j_decay) { QDP_abort(1);   }  
  
  g4g5_x_g4g5_local_meson(int t_len, 
                       const multi1d<LatticeColorMatrix> & uin,
                       Stag_shift_option type_of_shift_in = SYM_GAUGE_INVAR)
    : staggered_hadron_corr(t_len,no_pions,uin,type_of_shift_in)
    {
      outer_tag = "g4g5_x_g4g5"  ; 
      inner_tag = "Pi" ; 
      
      tag_names.resize(no_pions) ; 
      for(int i = 0 ; i <  no_pions ; ++i ) 
        {
          std::ostringstream tag;
          tag << "re_pion" << i;
          tag_names[i] = tag.str() ; 
        }
 
    }
 
  virtual ~g4g5_x_g4g5_local_meson()
    {
    }
 
 
  protected:
 
  private :
    static const int no_pions = 1 ; 
 
  } ;
 
 
}  // end namespace Chroma
 
 
#endif