include/Geant4/G4InuclSpecialFunctions.hh

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0024 // ********************************************************************
0025 //
0026 // G4InuclSpecialFunctions namespace
0027 //
0028 // Original Author: Aatos Heikkinen, 2002
0029 // --------------------------------------------------------------------
0030 #ifndef G4INUCL_SPECIAL_FUNC_HH
0031 #define G4INUCL_SPECIAL_FUNC_HH
0032
0033 #include "globals.hh"
0034 #include "G4LorentzVector.hh"
0035 #include <algorithm>
0036 #include <vector>
0037
0038 template <int N> class G4CascadeInterpolator;
0039
0040 namespace G4InuclSpecialFunctions
0041 {
0042   G4double bindingEnergy(G4int A, G4int Z);
0043
0044   // NOTE:  Used only by G4Fissioner
0045   G4double bindingEnergyAsymptotic(G4int A, G4int Z);
0046
0047   G4double FermiEnergy(G4int A, G4int Z, G4int ntype);
0048
0049   G4double getAL(G4int A);
0050
0051   G4double csNN(G4double e);
0052
0053   G4double csPN(G4double e);
0054
0055   G4double G4cbrt(G4double x);  // Use std::cbrt from <cmath>
0056   G4double G4cbrt(G4int n); // Use G4Pow::powN() here for speedup
0057
0058   G4double randomInuclPowers(G4double ekin,     // Power series in Ekin, S
0059                  const G4double (&coeff)[4][4]);
0060
0061   G4double randomGauss(G4double sigma);     // Gaussian distribution
0062
0063   G4double randomPHI();
0064
0065   std::pair<G4double, G4double> randomCOS_SIN();
0066
0067   G4double nucleiLevelDensity(G4int A);
0068
0069   // Optional mass argument will be used to fill G4LorentzVector correctly
0070   G4LorentzVector generateWithFixedTheta(G4double ct, G4double p,
0071                      G4double mass=0.);
0072
0073   G4LorentzVector generateWithRandomAngles(G4double p, G4double mass=0.);
0074
0075   // This is an object to be instantiated by client code
0076   class paraMaker
0077   {
0078     public:
0079
0080       paraMaker(G4int verbose=0);
0081       ~paraMaker();
0082
0083       paraMaker(const paraMaker& right) = delete;
0084       paraMaker& operator=(const paraMaker& right) = delete;
0085
0086       // NOTE:  Passing Z as double here, to be used as interpolation argument
0087       void getParams(G4double Z, std::pair<std::vector<G4double>,
0088                                  std::vector<G4double> >& parms);
0089
0090       void getTruncated(G4double Z, std::pair<G4double, G4double>& parms);
0091
0092     private:
0093
0094       G4int verboseLevel;
0095       G4CascadeInterpolator<5>* interp;
0096   };
0097 }
0098
0099
0100 #endif