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