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27 // PDG fits, 1998 Review of Particle Propertie 27 // PDG fits, 1998 Review of Particle Properties, European Phys. J. 3(1998), 1
28 // ------------------------------------------- 28 // -------------------------------------------------------------------
29 29
30 #include "globals.hh" 30 #include "globals.hh"
31 #include "G4ios.hh" 31 #include "G4ios.hh"
32 #include "G4Pow.hh" <<
33 #include "G4SystemOfUnits.hh" <<
34 #include "G4XPDGTotal.hh" 32 #include "G4XPDGTotal.hh"
35 #include "G4KineticTrack.hh" 33 #include "G4KineticTrack.hh"
36 #include "G4ParticleDefinition.hh" 34 #include "G4ParticleDefinition.hh"
37 #include "G4DataVector.hh" 35 #include "G4DataVector.hh"
38 #include "G4AntiProton.hh" 36 #include "G4AntiProton.hh"
39 #include "G4AntiNeutron.hh" 37 #include "G4AntiNeutron.hh"
40 #include "G4Proton.hh" 38 #include "G4Proton.hh"
41 #include "G4Neutron.hh" 39 #include "G4Neutron.hh"
42 #include "G4PionPlus.hh" 40 #include "G4PionPlus.hh"
43 #include "G4PionMinus.hh" 41 #include "G4PionMinus.hh"
44 #include "G4Gamma.hh" 42 #include "G4Gamma.hh"
45 #include "G4KaonMinus.hh" 43 #include "G4KaonMinus.hh"
46 #include "G4KaonPlus.hh" 44 #include "G4KaonPlus.hh"
47 45
48 const G4double G4XPDGTotal::_lowLimit = 3. * G 46 const G4double G4XPDGTotal::_lowLimit = 3. * GeV; // 2.99999 * GeV;
49 const G4double G4XPDGTotal::_highLimit = DBL_M 47 const G4double G4XPDGTotal::_highLimit = DBL_MAX;
50 48
51 // Parameters of the PDG total cross-section f 49 // Parameters of the PDG total cross-section fit (Rev. Particle Properties, 1998)
52 // Columns are: lower and higher fit range, X, 50 // Columns are: lower and higher fit range, X, Y1, Y2
53 const G4int G4XPDGTotal::nFit = 5; 51 const G4int G4XPDGTotal::nFit = 5;
54 // p p 52 // p p
55 const G4double G4XPDGTotal::ppPDGFit[5] = 53 const G4double G4XPDGTotal::ppPDGFit[5] = { 3., 40000., 18.256, 60.19, 33.43 };
56 // n p 54 // n p
57 const G4double G4XPDGTotal::npPDGFit[5] = 55 const G4double G4XPDGTotal::npPDGFit[5] = { 3., 40., 18.256, 61.14, 29.80 };
58 // pi p 56 // pi p
59 const G4double G4XPDGTotal::pipPDGFit[5] = 57 const G4double G4XPDGTotal::pipPDGFit[5] = { 3., 40., 11.568, 27.55, 5.62 };
60 // K p 58 // K p
61 const G4double G4XPDGTotal::KpPDGFit[5] = 59 const G4double G4XPDGTotal::KpPDGFit[5] = { 3., 40., 10.376, 15.57, 13.19 };
62 // K n 60 // K n
63 const G4double G4XPDGTotal::KnPDGFit[5] = 61 const G4double G4XPDGTotal::KnPDGFit[5] = { 3., 40., 10.376, 14.29, 7.38 };
64 // gamma p 62 // gamma p
65 const G4double G4XPDGTotal::gammapPDGFit[5] = 63 const G4double G4XPDGTotal::gammapPDGFit[5] = { 3., 300., 0.0577, 0.1171, 0. };
66 //gamma gamma 64 //gamma gamma
67 const G4double G4XPDGTotal::gammagammaPDGFit[5 65 const G4double G4XPDGTotal::gammagammaPDGFit[5] = { 3., 300., 0.000156, 0.00032, 0. };
68 66
69 67
70 G4XPDGTotal::G4XPDGTotal() 68 G4XPDGTotal::G4XPDGTotal()
71 { 69 {
72 std::pair<const G4ParticleDefinition *,const << 70 std::pair<G4String,G4String> pp(G4Proton::ProtonDefinition()->GetParticleName(),
73 G4Proton::ProtonDefinition()); << 71 G4Proton::ProtonDefinition()->GetParticleName());
74 std::pair<const G4ParticleDefinition *,const << 72 std::pair<G4String,G4String> pn(G4Proton::ProtonDefinition()->GetParticleName(),
75 G4Neutron::NeutronDefinition()); << 73 G4Neutron::NeutronDefinition()->GetParticleName());
76 std::pair<const G4ParticleDefinition *,const << 74 std::pair<G4String,G4String> piPlusp(G4PionPlus::PionPlusDefinition()->GetParticleName(),
77 G4Proton::ProtonDefinition()); << 75 G4Proton::ProtonDefinition()->GetParticleName());
78 std::pair<const G4ParticleDefinition *,const << 76 std::pair<G4String,G4String> piMinusp(G4PionMinus::PionMinusDefinition()->GetParticleName(),
79 G4Proton::ProtonDefinition()); << 77 G4Proton::ProtonDefinition()->GetParticleName());
80 std::pair<const G4ParticleDefinition *,const << 78 std::pair<G4String,G4String> KPlusp(G4KaonPlus::KaonPlusDefinition()->GetParticleName(),
81 G4Proton::ProtonDefinition()); << 79 G4Proton::ProtonDefinition()->GetParticleName());
82 std::pair<const G4ParticleDefinition *,const << 80 std::pair<G4String,G4String> KPlusn(G4KaonPlus::KaonPlusDefinition()->GetParticleName(),
83 G4Neutron::NeutronDefinition()); << 81 G4Neutron::NeutronDefinition()->GetParticleName());
84 std::pair<const G4ParticleDefinition *,const << 82 std::pair<G4String,G4String> KMinusp(G4KaonMinus::KaonMinusDefinition()->GetParticleName(),
85 G4Proton::ProtonDefinition()); << 83 G4Proton::ProtonDefinition()->GetParticleName());
86 std::pair<const G4ParticleDefinition *,const << 84 std::pair<G4String,G4String> KMinusn(G4KaonMinus::KaonMinusDefinition()->GetParticleName(),
87 G4Neutron::NeutronDefinition()); << 85 G4Neutron::NeutronDefinition()->GetParticleName());
88 std::pair<const G4ParticleDefinition *,const << 86 std::pair<G4String,G4String> gp(G4Gamma::GammaDefinition()->GetParticleName(),
89 G4Proton::ProtonDefinition()); << 87 G4Proton::ProtonDefinition()->GetParticleName());
90 std::pair<const G4ParticleDefinition *,const << 88 std::pair<G4String,G4String> gg(G4Gamma::GammaDefinition()->GetParticleName(),
91 G4Gamma::GammaDefinition()); << 89 G4Gamma::GammaDefinition()->GetParticleName());
92 std::pair<const G4ParticleDefinition *,const << 90 std::pair<G4String,G4String> nn(G4Neutron::NeutronDefinition()->GetParticleName(),
93 G4Neutron::NeutronDefinition()); << 91 G4Neutron::NeutronDefinition()->GetParticleName());
94 92
95 std::vector<G4double> nnData; 93 std::vector<G4double> nnData;
96 std::vector<G4double> ppData; 94 std::vector<G4double> ppData;
97 std::vector<G4double> pnData; 95 std::vector<G4double> pnData;
98 std::vector<G4double> pipData; 96 std::vector<G4double> pipData;
99 std::vector<G4double> KpData; 97 std::vector<G4double> KpData;
100 std::vector<G4double> KnData; 98 std::vector<G4double> KnData;
101 std::vector<G4double> gpData; 99 std::vector<G4double> gpData;
102 std::vector<G4double> ggData; 100 std::vector<G4double> ggData;
103 101
104 G4int i; 102 G4int i;
105 for (i=0; i<2; i++) 103 for (i=0; i<2; i++)
106 { 104 {
107 nnData.push_back(ppPDGFit[i] * GeV); 105 nnData.push_back(ppPDGFit[i] * GeV);
108 ppData.push_back(ppPDGFit[i] * GeV); 106 ppData.push_back(ppPDGFit[i] * GeV);
109 pnData.push_back(npPDGFit[i] * GeV); 107 pnData.push_back(npPDGFit[i] * GeV);
110 pipData.push_back(pipPDGFit[i] * GeV); 108 pipData.push_back(pipPDGFit[i] * GeV);
111 KpData.push_back(KpPDGFit[i] * GeV); 109 KpData.push_back(KpPDGFit[i] * GeV);
112 KnData.push_back(KnPDGFit[i] * GeV); 110 KnData.push_back(KnPDGFit[i] * GeV);
113 gpData.push_back(gammapPDGFit[i] * GeV); 111 gpData.push_back(gammapPDGFit[i] * GeV);
114 ggData.push_back(gammagammaPDGFit[i] * G 112 ggData.push_back(gammagammaPDGFit[i] * GeV);
115 } 113 }
116 for (i=2; i<nFit; i++) 114 for (i=2; i<nFit; i++)
117 { 115 {
118 nnData.push_back(ppPDGFit[i]); 116 nnData.push_back(ppPDGFit[i]);
119 ppData.push_back(ppPDGFit[i]); 117 ppData.push_back(ppPDGFit[i]);
120 pnData.push_back(npPDGFit[i]); 118 pnData.push_back(npPDGFit[i]);
121 pipData.push_back(pipPDGFit[i]); 119 pipData.push_back(pipPDGFit[i]);
122 KpData.push_back(KpPDGFit[i]); 120 KpData.push_back(KpPDGFit[i]);
123 KnData.push_back(KnPDGFit[i]); 121 KnData.push_back(KnPDGFit[i]);
124 gpData.push_back(gammapPDGFit[i]); 122 gpData.push_back(gammapPDGFit[i]);
125 ggData.push_back(gammagammaPDGFit[i]); 123 ggData.push_back(gammagammaPDGFit[i]);
126 } 124 }
127 125
128 xMap[pp] = std::move(ppData); << 126 xMap[pp] = ppData;
129 xMap[pn] = std::move(pnData); << 127 xMap[pn] = pnData;
130 xMap[piPlusp] = pipData; 128 xMap[piPlusp] = pipData;
131 xMap[piMinusp] = std::move(pipData); << 129 xMap[piMinusp] = pipData;
132 xMap[KPlusp] = KpData; 130 xMap[KPlusp] = KpData;
133 xMap[KPlusn] = KnData; 131 xMap[KPlusn] = KnData;
134 xMap[KMinusp] = std::move(KpData); << 132 xMap[KMinusp] = KpData;
135 xMap[KMinusn] = std::move(KnData); << 133 xMap[KMinusn] = KnData;
136 xMap[gp] = std::move(gpData); << 134 xMap[gp] = gpData;
137 xMap[gg] = std::move(ggData); << 135 xMap[gg] = ggData;
138 xMap[nn] = std::move(nnData); << 136 xMap[nn] = nnData;
139 } 137 }
140 138
141 139
142 G4XPDGTotal::~G4XPDGTotal() 140 G4XPDGTotal::~G4XPDGTotal()
143 { } 141 { }
144 142
145 143
146 G4bool G4XPDGTotal::operator==(const G4XPDGTot 144 G4bool G4XPDGTotal::operator==(const G4XPDGTotal &right) const
147 { 145 {
148 return (this == (G4XPDGTotal *) &right); 146 return (this == (G4XPDGTotal *) &right);
149 } 147 }
150 148
151 149
152 G4bool G4XPDGTotal::operator!=(const G4XPDGTot 150 G4bool G4XPDGTotal::operator!=(const G4XPDGTotal &right) const
153 { 151 {
154 return (this != (G4XPDGTotal *) &right); 152 return (this != (G4XPDGTotal *) &right);
155 } 153 }
156 154
157 155
158 G4double G4XPDGTotal::CrossSection(const G4Kin 156 G4double G4XPDGTotal::CrossSection(const G4KineticTrack& trk1,
159 const G4KineticTrack& trk2) const 157 const G4KineticTrack& trk2) const
160 { 158 {
161 G4double sigma = 0.; 159 G4double sigma = 0.;
162 160
163 G4double sqrtS = (trk1.Get4Momentum() + trk2 161 G4double sqrtS = (trk1.Get4Momentum() + trk2.Get4Momentum()).mag();
164 162
165 const G4ParticleDefinition* def1 = trk1.GetD << 163 G4ParticleDefinition* def1 = trk1.GetDefinition();
166 const G4ParticleDefinition* def2 = trk2.GetD << 164 G4ParticleDefinition* def2 = trk2.GetDefinition();
167 165
168 G4double enc1 = def1->GetPDGEncoding(); 166 G4double enc1 = def1->GetPDGEncoding();
169 G4double enc2 = def2->GetPDGEncoding(); 167 G4double enc2 = def2->GetPDGEncoding();
170 G4double coeff = -1.; 168 G4double coeff = -1.;
171 if ( (enc1 < 0 && enc2 >0) || (enc2 < 0 && e 169 if ( (enc1 < 0 && enc2 >0) || (enc2 < 0 && enc1 >0) ) coeff = 1.;
172 170
173 // Order the pair: first is the lower mass p 171 // Order the pair: first is the lower mass particle, second is the higher mass one
174 std::pair<const G4ParticleDefinition *,const << 172 std::pair<G4String,G4String> trkPair(def1->GetParticleName(),def2->GetParticleName());
175 173
176 if (def1->GetPDGMass() > def2->GetPDGMass()) 174 if (def1->GetPDGMass() > def2->GetPDGMass())
177 trkPair = std::pair<const G4ParticleDefini << 175 trkPair = std::pair<G4String,G4String>(def2->GetParticleName(),def1->GetParticleName());
178 176
179 std::vector<G4double> data; 177 std::vector<G4double> data;
180 178
181 if (xMap.find(trkPair) != xMap.end()) 179 if (xMap.find(trkPair) != xMap.end())
182 { 180 {
183 181
184 PairDoubleMap::const_iterator iter; 182 PairDoubleMap::const_iterator iter;
185 for (iter = xMap.begin(); iter != xMap.e 183 for (iter = xMap.begin(); iter != xMap.end(); ++iter)
186 { 184 {
187 std::pair<const G4ParticleDefinition *,con << 185 std::pair<G4String,G4String> thePair = (*iter).first;
188 if (thePair == trkPair) 186 if (thePair == trkPair)
189 { 187 {
190 data = (*iter).second; 188 data = (*iter).second;
191 189
192 G4double eMinFit = data[0]; 190 G4double eMinFit = data[0];
193 G4double eMaxFit = data[1]; 191 G4double eMaxFit = data[1];
194 G4double xFit = data[2]; 192 G4double xFit = data[2];
195 G4double y1Fit = data[3]; 193 G4double y1Fit = data[3];
196 G4double y2Fit = data[4]; 194 G4double y2Fit = data[4];
197 195
198 // Total Cross-section fit, 1998 Revie 196 // Total Cross-section fit, 1998 Review of Particle Properties, European Phys. J. 3(1998), 1
199 197
200 // Parameters from the PDG fit 198 // Parameters from the PDG fit
201 static const G4double epsilon = 0.095; << 199 const G4double epsilon = 0.095;
202 static const G4double eta1 = -0.34; << 200 const G4double eta1 = -0.34;
203 static const G4double eta2 = -0.55; << 201 const G4double eta2 = -0.55;
204 202
205 if (sqrtS < eMinFit || sqrtS > eMaxFit 203 if (sqrtS < eMinFit || sqrtS > eMaxFit)
206 { 204 {
207 G4cout << "WARNING! G4XPDGTotal::P 205 G4cout << "WARNING! G4XPDGTotal::PDGTotal extrapolating cross section at "
208 << sqrtS / GeV 206 << sqrtS / GeV
209 << " GeV outside the PDG fit range 207 << " GeV outside the PDG fit range "
210 << eMinFit / GeV << " - " << eMaxFi 208 << eMinFit / GeV << " - " << eMaxFit / GeV << " GeV " << G4endl;
211 } 209 }
212 210
213 G4double S = (sqrtS * sqrtS) / (GeV*Ge << 211 G4double s = (sqrtS * sqrtS) / (GeV*GeV);
214 212
215 sigma = ( (xFit * G4Pow::GetInstance() << 213 sigma = ( (xFit * std::pow(s,epsilon)) +
216 (y1Fit * G4Pow::GetInstance()->powA(S,et << 214 (y1Fit * std::pow(s,eta1)) +
217 (coeff * y2Fit * G4Pow::GetInstance()->p << 215 (coeff * y2Fit * std::pow(s,eta2)) ) * millibarn;
218 216
219 if (sigma < 0.) 217 if (sigma < 0.)
220 { 218 {
221 G4String name1 = def1->GetParticleName() 219 G4String name1 = def1->GetParticleName();
222 G4String name2 = def2->GetParticleName() 220 G4String name2 = def2->GetParticleName();
223 G4cout << "WARNING! G4XPDGTotal::PDGTota 221 G4cout << "WARNING! G4XPDGTotal::PDGTotal "
224 << name1 << "-" << name2 222 << name1 << "-" << name2
225 << " total cross section: Ecm " 223 << " total cross section: Ecm "
226 << sqrtS / GeV << " GeV, negative cross 224 << sqrtS / GeV << " GeV, negative cross section "
227 << sigma / millibarn << " mb set to 0" 225 << sigma / millibarn << " mb set to 0" << G4endl;
228 sigma = 0.; 226 sigma = 0.;
229 } 227 }
230 } 228 }
231 } 229 }
232 } 230 }
233 return sigma; 231 return sigma;
234 } 232 }
235 233
236 234
237 G4String G4XPDGTotal::Name() const 235 G4String G4XPDGTotal::Name() const
238 { 236 {
239 G4String name = "PDGTotal "; 237 G4String name = "PDGTotal ";
240 return name; 238 return name;
241 } 239 }
242 240
243 241
244 G4bool G4XPDGTotal::IsValid(G4double e) const 242 G4bool G4XPDGTotal::IsValid(G4double e) const
245 { 243 {
246 G4bool answer = InLimits(e,_lowLimit,_highLi 244 G4bool answer = InLimits(e,_lowLimit,_highLimit);
247 245
248 return answer; 246 return answer;
249 } 247 }
250 248
251 249
252 G4double G4XPDGTotal::PDGTotal(G4double ,G4dou 250 G4double G4XPDGTotal::PDGTotal(G4double ,G4double ) const
253 { 251 {
254 return 0.; 252 return 0.;
255 } 253 }
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