KTStructures.h

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/*
 *  CepGen: a central exclusive processes event generator
 *  Copyright (C) 2013-2022  Laurent Forthomme
 *
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
#ifndef CepGen_Process_Fortran_KTStructures_h
#define CepGen_Process_Fortran_KTStructures_h
 
namespace cepgen {
  namespace ktblock {
    struct Constants {
      double m_p;    
      double units;  
      double pi;     
    };
    struct GenParameters {
      int icontri;  
      int idum;     
      int iflux1;   
      int iflux2;   
      int a_nuc1;   
      int z_nuc1;   
      int a_nuc2;   
      int z_nuc2;   
      double inp1;  
      double inp2;  
    };
    struct KTKinematics {
      double q1t;        
      double q2t;        
      double phiq1t;     
      double phiq2t;     
      double y1;         
      double y2;         
      double ptdiff;     
      double phiptdiff;  
      double m_x;        
      double m_y;        
    };
    struct KinCuts {
      int ipt;           
      int iene;          
      int ieta;          
      int iinvm;         
      int iptsum;        
      int idely;         
      double pt_min;     
      double pt_max;     
      double ene_min;    
      double ene_max;    
      double eta_min;    
      double eta_max;    
      double invm_min;   
      double invm_max;   
      double ptsum_min;  
      double ptsum_max;  
      double dely_min;   
      double dely_max;   
    };
    struct EventKinematics {
      static constexpr size_t MAX_PART = 10;
      int nout;                
      int pdg[MAX_PART];       
      int idum;                
      double pc[MAX_PART][4];  
      double px[4];            
      double py[4];            
    };
  }  // namespace ktblock
}  // namespace cepgen
 
#endif