PDGLibrary.h

Go to the documentation of this file.

//____________________________________________________________________________
/*!

\class    genie::PDGLibrary

\brief    Singleton class to load & serve a TDatabasePDG.

\author   Costas Andreopoulos <costas.andreopoulos \at stfc.ac.uk>
          University of Liverpool & STFC Rutherford Appleton Lab

          Changes required to implement the GENIE Boosted Dark Matter module
          were installed by Josh Berger (Univ. of Wisconsin)

\created  May 06, 2004

\cpright  Copyright (c) 2003-2019, The GENIE Collaboration
          For the full text of the license visit http://copyright.genie-mc.org
          or see $GENIE/LICENSE
*/
//____________________________________________________________________________

#ifndef _PDG_LIBRARY_H_
#define _PDG_LIBRARY_H_

#include <TDatabasePDG.h>
#include <TParticlePDG.h>

namespace genie {

class PDGLibrary 
{
public:

  static PDGLibrary * Instance(void);

  TDatabasePDG * DBase (void);
  TParticlePDG * Find  (int pdgc);
  void           ReloadDBase (void);

  // Add dark matter and mediator with parameters from Boosted Dark Matter app configuration
  // Ideally, this code should be in the Dark Matter app, not here.
  // But presently there is no way to edit the PDGLibrary after it has been created.
  void AddDarkMatter  (double mass, double med_ratio);  

private:

  PDGLibrary();
  PDGLibrary(const PDGLibrary & config_pool);
  virtual ~PDGLibrary();

  bool LoadDBase(void);

  static PDGLibrary * fInstance;
  TDatabasePDG      * fDatabasePDG;
  
  struct Cleaner {
      void DummyMethodAndSilentCompiler() { }
      ~Cleaner() {
         if (PDGLibrary::fInstance !=0) {
            delete PDGLibrary::fInstance;
            PDGLibrary::fInstance = 0;
         }
      }
  };
  friend struct Cleaner;
};

}      // genie namespace

#endif // _PDG_LIBRARY_H_