G4CameronGilbertPairingCorrections.hh

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// $Id: G4CameronGilbertPairingCorrections.hh 68724 2013-04-05 09:26:32Z gcosmo $
//
// Hadronic Process: Nuclear De-excitations
// by V. Lara
//
// Modified:
// 21.03.2013 V.Ivanchenko redesigned and cleaned up


#ifndef G4CameronGilbertPairingCorrections_h
#define G4CameronGilbertPairingCorrections_h 1

#include "globals.hh"

class G4CameronGilbertPairingCorrections
{
public:

  G4CameronGilbertPairingCorrections();

  ~G4CameronGilbertPairingCorrections();

  inline 
  G4double GetPairingCorrection(G4int A, G4int Z) const
  {
    return GetPairingZ(Z) + GetPairingN(A-Z);
  }

  inline 
  G4double GetPairingZ(G4int Z) const 
  {
    G4double res = 0.0;
    if (IsInTableThisZ(Z)) { res = PairingZTable[Z-ZTableMin]; }
    return res;
  }

  inline 
  G4bool IsInTableThisZ(G4int Z) const 
  {
    return ( Z >= ZTableMin && Z <= ZTableMax );
  }

  inline 
  G4double GetPairingN(G4int N) const 
  {
    G4double res = 0.0;
    if (IsInTableThisN(N)) { res = PairingNTable[N-NTableMin]; }
    return res;
  }

  G4bool IsInTableThisN(G4int N) const 
  {
    return ( N >= NTableMin && N <= NTableMax );
  }

  enum  { ZTableSize = 88, NTableSize = 140, ZTableMin = 11, ZTableMax = 98,
      NTableMin = 11, NTableMax = 150 };

private:

  static G4double PairingZTable[ZTableSize];
  static G4double PairingNTable[NTableSize];
    
};
#endif