include/Geant4/G4InuclSpecialFunctions.hh

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0025 //
0026 //
0027 // 20100114  M. Kelsey -- Remove G4CascadeMomentum, use G4LorentzVector directly
0028 // 20100319  M. Kelsey -- Add optional mass argument to generateWithFixedTheta;
0029 //      define new generateWithRandomAngles, encapsulating code; define
0030 //      cbrt() cube-root function (in math.h, but not in <math>!)
0031 // 20100412  M. Kelsey -- Modify paraMaker[Truncated] to take buffer as argument
0032 // 20100914  M. Kelsey -- Migrate to integer A and Z.  Discard unused binding
0033 //      energy functions
0034 // 20120608  M. Kelsey -- Fix variable-name "shadowing" compiler warnings.
0035 // 20130308  M. Kelsey -- New function to encapsulate INUCL power expansion
0036 // 20130808  M. Kelsey -- Convert paraMaker[Truncated] to class object, to
0037 //      allow thread isolation
0038 // 20130829  M. Kelsey -- Address Coverity #52158, 52161 for copy actions.
0039 // 20150619  M. Kelsey -- Overload G4cbrt for case of integer arguments
0040
0041 #ifndef G4INUCL_SPECIAL_FUNC_HH
0042 #define G4INUCL_SPECIAL_FUNC_HH
0043
0044 #include "globals.hh"
0045 #include "G4LorentzVector.hh"
0046 #include <algorithm>
0047 #include <vector>
0048
0049 template <int N> class G4CascadeInterpolator;
0050
0051
0052 namespace G4InuclSpecialFunctions {
0053   G4double bindingEnergy(G4int A, G4int Z);
0054
0055   // NOTE:  Used only by G4Fissioner
0056   G4double bindingEnergyAsymptotic(G4int A, G4int Z);
0057
0058   G4double FermiEnergy(G4int A, G4int Z, G4int ntype);
0059
0060   G4double getAL(G4int A);
0061
0062   G4double csNN(G4double e);
0063
0064   G4double csPN(G4double e);
0065
0066   G4double G4cbrt(G4double x);  // Can't use "cbrt" name, clashes with <math.h>
0067   G4double G4cbrt(G4int n); // Use G4Pow::powN() here for speedup
0068
0069   G4double inuclRndm();             // Wrapper for G4UniformRand()
0070
0071   G4double randomInuclPowers(G4double ekin,     // Power series in Ekin, S
0072                  const G4double (&coeff)[4][4]);
0073
0074   G4double randomGauss(G4double sigma);     // Gaussian distribution
0075
0076   G4double randomPHI();
0077
0078   std::pair<G4double, G4double> randomCOS_SIN();
0079
0080   G4double nucleiLevelDensity(G4int A);
0081
0082   // Optional mass argument will be used to fill G4LorentzVector correctly
0083   G4LorentzVector generateWithFixedTheta(G4double ct, G4double p,
0084                      G4double mass=0.);
0085
0086   G4LorentzVector generateWithRandomAngles(G4double p, G4double mass=0.);
0087
0088   // This is an object to be instantiated by client code
0089   class paraMaker {
0090   public:
0091     paraMaker(G4int verbose=0);
0092     ~paraMaker();
0093
0094   // NOTE:  Passing Z as double here, to be used as interpolation argument
0095     void getParams(G4double Z, std::pair<std::vector<G4double>,
0096                                  std::vector<G4double> >& parms);
0097
0098     void getTruncated(G4double Z, std::pair<G4double, G4double>& parms);
0099
0100   private:
0101     G4int verboseLevel;
0102     G4CascadeInterpolator<5>* interp;
0103
0104     // No copy actions
0105     paraMaker(const paraMaker& right);
0106     paraMaker& operator=(const paraMaker& right);
0107   };
0108 }
0109
0110
0111 #endif