ProcessIntegrand.h

Go to the documentation of this file.

/*
 *  CepGen: a central exclusive processes event generator
 *  Copyright (C) 2013-2024  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_Integration_ProcessIntegrand_h
#define CepGen_Integration_ProcessIntegrand_h
 
#include <memory>
 
#include "CepGen/EventFilter/EventBrowser.h"
#include "CepGen/Integration/Integrand.h"
 
namespace cepgen {
  class RunParameters;
  namespace proc {
    class Process;
  }
  namespace utils {
    class Timer;
  }
  class ProcessIntegrand : public Integrand {
  public:
    explicit ProcessIntegrand(const proc::Process&);
    explicit ProcessIntegrand(const RunParameters*);
 
    double eval(const std::vector<double>& x) override;
    size_t size() const override;  
    bool hasProcess() const override final { return true; }
 
    proc::Process& process();              
    const proc::Process& process() const;  
 
    void setStorage(bool store) { storage_ = store; }  
    bool storage() const { return storage_; }          
 
  private:
    void setProcess(const proc::Process&);
 
    std::unique_ptr<proc::Process> process_;   
    const RunParameters* params_{nullptr};     
    const std::unique_ptr<utils::Timer> tmr_;  
    utils::EventBrowser bws_;                  
    bool storage_{false};                      
  };
}  // namespace cepgen
 
#endif