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>> 26 // $Id: G4ee2KNeutralModel.cc,v 1.2 2009/02/20 16:38:33 vnivanch Exp $
>> 27 // GEANT4 tag $Name: geant4-09-03 $
26 // 28 //
27 // ------------------------------------------- 29 // -------------------------------------------------------------------
28 // 30 //
29 // GEANT4 Class header file 31 // GEANT4 Class header file
30 // 32 //
31 // 33 //
32 // File name: G4ee2KNeutralModel 34 // File name: G4ee2KNeutralModel
33 // 35 //
34 // Author: Vladimir Ivanchenko 36 // Author: Vladimir Ivanchenko
35 // 37 //
36 // Creation date: 09.07.2008 38 // Creation date: 09.07.2008
37 // 39 //
38 // Modifications: 40 // Modifications:
39 // 41 //
40 // 42 //
41 // ------------------------------------------- 43 // -------------------------------------------------------------------
42 // 44 //
43 45
44 46
45 //....oooOO0OOooo........oooOO0OOooo........oo 47 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
46 //....oooOO0OOooo........oooOO0OOooo........oo 48 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
47 49
48 #include "G4ee2KNeutralModel.hh" 50 #include "G4ee2KNeutralModel.hh"
49 #include "Randomize.hh" 51 #include "Randomize.hh"
50 #include "G4PhysicalConstants.hh" <<
51 #include "G4SystemOfUnits.hh" <<
52 #include "G4KaonZeroLong.hh" 52 #include "G4KaonZeroLong.hh"
53 #include "G4KaonZeroShort.hh" 53 #include "G4KaonZeroShort.hh"
54 #include "G4DynamicParticle.hh" 54 #include "G4DynamicParticle.hh"
55 #include "G4PhysicsVector.hh" 55 #include "G4PhysicsVector.hh"
56 #include "G4PhysicsLinearVector.hh" 56 #include "G4PhysicsLinearVector.hh"
57 #include "G4eeCrossSections.hh" 57 #include "G4eeCrossSections.hh"
58 58
59 //....oooOO0OOooo........oooOO0OOooo........oo 59 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
60 60
61 using namespace std; 61 using namespace std;
62 62
63 G4ee2KNeutralModel::G4ee2KNeutralModel(G4eeCro << 63 G4ee2KNeutralModel::G4ee2KNeutralModel(G4eeCrossSections* cr):
64 G4double maxkinEnergy, << 64 cross(cr)
65 G4double binWidth) <<
66 : G4Vee2hadrons(cr, <<
67 2.0*G4KaonZeroLong::KaonZeroLong()->GetPD <<
68 maxkinEnergy, <<
69 binWidth) <<
70 { 65 {
71 G4cout << "####G4ee2KNeutralModel####" <<G4e <<
72 <<
73 massK = G4KaonZeroLong::KaonZeroLong()->GetP 66 massK = G4KaonZeroLong::KaonZeroLong()->GetPDGMass();
74 massPhi = 1019.46*MeV; 67 massPhi = 1019.46*MeV;
75 } 68 }
76 69
77 //....oooOO0OOooo........oooOO0OOooo........oo 70 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
78 71
79 G4ee2KNeutralModel::~G4ee2KNeutralModel() 72 G4ee2KNeutralModel::~G4ee2KNeutralModel()
80 {} 73 {}
81 74
82 //....oooOO0OOooo........oooOO0OOooo........oo 75 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
83 76
>> 77 G4double G4ee2KNeutralModel::ThresholdEnergy() const
>> 78 {
>> 79 return 2.0*massK;
>> 80 }
>> 81
>> 82 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
>> 83
84 G4double G4ee2KNeutralModel::PeakEnergy() cons 84 G4double G4ee2KNeutralModel::PeakEnergy() const
85 { 85 {
86 return massPhi; 86 return massPhi;
87 } 87 }
88 88
89 //....oooOO0OOooo........oooOO0OOooo........oo 89 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
90 90
91 G4double G4ee2KNeutralModel::ComputeCrossSecti 91 G4double G4ee2KNeutralModel::ComputeCrossSection(G4double e) const
92 { 92 {
93 return cross->CrossSection2Kneutral(e); << 93 G4double ee = std::min(HighEnergy(),e);
>> 94 return cross->CrossSection2Kneutral(ee);
>> 95 }
>> 96
>> 97 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
>> 98
>> 99 G4PhysicsVector* G4ee2KNeutralModel::PhysicsVector(G4double emin,
>> 100 G4double emax) const
>> 101 {
>> 102 G4double tmin = std::max(emin, 2.0*massK);
>> 103 G4double tmax = std::max(tmin, emax);
>> 104 G4int nbins = (G4int)((tmax - tmin)/(1.0*MeV));
>> 105 G4PhysicsVector* v = new G4PhysicsLinearVector(emin,emax,nbins);
>> 106 v->SetSpline(true);
>> 107 return v;
94 } 108 }
95 109
96 //....oooOO0OOooo........oooOO0OOooo........oo 110 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
97 111
98 void G4ee2KNeutralModel::SampleSecondaries(std 112 void G4ee2KNeutralModel::SampleSecondaries(std::vector<G4DynamicParticle*>* newp,
99 G4double e, const G4ThreeVector& directi 113 G4double e, const G4ThreeVector& direction)
100 { 114 {
101 115
102 G4double tkin = 0.5*e - massK; 116 G4double tkin = 0.5*e - massK;
103 if(tkin < 0.0) tkin = 0.0; 117 if(tkin < 0.0) tkin = 0.0;
104 118
105 G4double cost; 119 G4double cost;
106 do { 120 do {
107 cost = 2.0*G4UniformRand() - 1.0; 121 cost = 2.0*G4UniformRand() - 1.0;
108 // Loop checking, 07-Aug-2015, Vladimir Iv <<
109 } while( G4UniformRand() > 1.0 - cost*cost ) 122 } while( G4UniformRand() > 1.0 - cost*cost );
110 123
111 G4double sint = sqrt(1.0 - cost*cost); 124 G4double sint = sqrt(1.0 - cost*cost);
112 G4double phi = twopi * G4UniformRand(); 125 G4double phi = twopi * G4UniformRand();
113 126
114 G4ThreeVector dir(sint*cos(phi),sint*sin(phi 127 G4ThreeVector dir(sint*cos(phi),sint*sin(phi), cost);
115 dir.rotateUz(direction); 128 dir.rotateUz(direction);
116 129
117 // create G4DynamicParticle objects 130 // create G4DynamicParticle objects
118 G4DynamicParticle* p1 = 131 G4DynamicParticle* p1 =
119 new G4DynamicParticle(G4KaonZeroLong::Kao 132 new G4DynamicParticle(G4KaonZeroLong::KaonZeroLong(),dir,tkin);
120 G4DynamicParticle* p2 = 133 G4DynamicParticle* p2 =
121 new G4DynamicParticle(G4KaonZeroShort::Ka 134 new G4DynamicParticle(G4KaonZeroShort::KaonZeroShort(),-dir,tkin);
122 newp->push_back(p1); 135 newp->push_back(p1);
123 newp->push_back(p2); 136 newp->push_back(p2);
124 } 137 }
125 138
126 //....oooOO0OOooo........oooOO0OOooo........oo 139 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
127 140
128 141