Cuts.h

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/*
 *  CepGen: a central exclusive processes event generator
 *  Copyright (C) 2017-2024  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_Physics_Cuts_h
#define CepGen_Physics_Cuts_h
 
#include "CepGen/Event/Particle.h"
 
namespace cepgen {
  class Event;
  class ParametersList;
 
  namespace cuts {
    struct Central final : public SteeredObject<Central> {
      Central();
      explicit Central(const ParametersList&);
 
      static ParametersDescription description();
      bool contain(const Particles&, const Event* evt = nullptr) const;
 
      Limits pt_single;        
      Limits eta_single;       
      Limits rapidity_single;  
      Limits energy_single;    
      Limits mass_single;      
      Limits pt_sum;           
      Limits eta_sum;          
      Limits energy_sum;       
      Limits mass_sum;         
      Limits pt_diff;          
      Limits phi_diff;         
      Limits rapidity_diff;    
    };
 
    struct Initial final : public SteeredObject<Initial> {
      explicit Initial(const ParametersList&);
 
      static ParametersDescription description();
      bool contain(const Particles&, const Event* evt = nullptr) const;
 
      void setParameters(const ParametersList&) override;
 
      std::vector<Limits> q2;  
      Limits qt;               
      Limits phi;              
    };
 
    struct Remnants final : public SteeredObject<Remnants> {
      explicit Remnants(const ParametersList&);
 
      static ParametersDescription description();
      bool contain(const Particles&, const Event* evt = nullptr) const;
 
      void setParameters(const ParametersList&) override;
 
      Limits mx;  
      Limits yj;  
      Limits xi;  
 
      static constexpr double MX_MIN = 1.07;  
    };
  }  // namespace cuts
  typedef std::unordered_map<pdgid_t, cuts::Central> PerIdCuts;
  struct CutsList final : SteeredObject<CutsList> {
    explicit CutsList(const ParametersList&);
 
    static ParametersDescription description();
 
    void setParameters(const ParametersList&) override;
 
    friend std::ostream& operator<<(std::ostream&, const CutsList&);
 
    cuts::Initial initial;        
    cuts::Central central;        
    PerIdCuts central_particles;  
    cuts::Remnants remnants;      
  };
}  // namespace cepgen
 
#endif