1 | // |
---|
2 | // ******************************************************************** |
---|
3 | // * License and Disclaimer * |
---|
4 | // * * |
---|
5 | // * The Geant4 software is copyright of the Copyright Holders of * |
---|
6 | // * the Geant4 Collaboration. It is provided under the terms and * |
---|
7 | // * conditions of the Geant4 Software License, included in the file * |
---|
8 | // * LICENSE and available at http://cern.ch/geant4/license . These * |
---|
9 | // * include a list of copyright holders. * |
---|
10 | // * * |
---|
11 | // * Neither the authors of this software system, nor their employing * |
---|
12 | // * institutes,nor the agencies providing financial support for this * |
---|
13 | // * work make any representation or warranty, express or implied, * |
---|
14 | // * regarding this software system or assume any liability for its * |
---|
15 | // * use. Please see the license in the file LICENSE and URL above * |
---|
16 | // * for the full disclaimer and the limitation of liability. * |
---|
17 | // * * |
---|
18 | // * This code implementation is the result of the scientific and * |
---|
19 | // * technical work of the GEANT4 collaboration. * |
---|
20 | // * By using, copying, modifying or distributing the software (or * |
---|
21 | // * any work based on the software) you agree to acknowledge its * |
---|
22 | // * use in resulting scientific publications, and indicate your * |
---|
23 | // * acceptance of all terms of the Geant4 Software license. * |
---|
24 | // ******************************************************************** |
---|
25 | // |
---|
26 | // |
---|
27 | // $Id: G4ElasticHadrNucleusHE.hh,v 1.47 2009/09/22 16:21:46 vnivanch Exp $ |
---|
28 | // GEANT4 tag $Name: geant4-09-03 $ |
---|
29 | // |
---|
30 | // G4ElasticHadrNucleusHe.hh |
---|
31 | |
---|
32 | // The generator of high energy hadron-nucleus elastic scattering |
---|
33 | // The hadron kinetic energy T > 1 GeV |
---|
34 | // N. Starkov 2003. |
---|
35 | // |
---|
36 | // 19.05.04 Variant for G4 6.1: The 'ApplyYourself' was changed |
---|
37 | // 19.11.05 The HE elastic scattering on proton is added (N.Starkov) |
---|
38 | // 16.11.06 General redesign (N.Starkov) |
---|
39 | // 23.11.06 General cleanup, ONQ0=3 (V.Ivanchenko) |
---|
40 | // 15.05.07 Redesign and cleanup (V.Ivanchenko) |
---|
41 | // 18.05.07 Cleanup (V.Grichine) |
---|
42 | // |
---|
43 | |
---|
44 | #ifndef G4ElasticHadrNucleusHE_h |
---|
45 | #define G4ElasticHadrNucleusHE_h 1 |
---|
46 | |
---|
47 | #include <vector> |
---|
48 | |
---|
49 | #include "globals.hh" |
---|
50 | #include "G4ParticleDefinition.hh" |
---|
51 | #include "G4ParticleChange.hh" |
---|
52 | #include "G4Nucleus.hh" |
---|
53 | #include "G4VHadronElastic.hh" |
---|
54 | |
---|
55 | class G4NistManager; |
---|
56 | |
---|
57 | static const G4int NHADRONS = 26; // Number of hadrons for which model is applied |
---|
58 | static const G4int ONQ0 = 5; // The initial number of steps on Q2 |
---|
59 | static const G4int ONQ2 = 100; // The total number of steps on Q2 |
---|
60 | static const G4int NENERGY = 30; |
---|
61 | static const G4int NQTABLE = NENERGY*ONQ2; |
---|
62 | |
---|
63 | |
---|
64 | /////////////////////////////////////////////////////////////////////// |
---|
65 | // |
---|
66 | // |
---|
67 | |
---|
68 | class G4ElasticData |
---|
69 | { |
---|
70 | public: |
---|
71 | |
---|
72 | G4ElasticData(const G4ParticleDefinition* h, |
---|
73 | G4int Z, G4double A, G4double* eGeV); |
---|
74 | |
---|
75 | ~G4ElasticData(){} |
---|
76 | |
---|
77 | const G4ParticleDefinition* Hadron() {return hadr;} |
---|
78 | |
---|
79 | private: |
---|
80 | void DefineNucleusParameters(G4double A); |
---|
81 | const G4ParticleDefinition* hadr; |
---|
82 | |
---|
83 | // hide assignment operator |
---|
84 | G4ElasticData & operator=(const G4ElasticData &right); |
---|
85 | G4ElasticData(const G4ElasticData&); |
---|
86 | |
---|
87 | public: |
---|
88 | G4int AtomicWeight; |
---|
89 | G4double R1, R2, Pnucl, Aeff; |
---|
90 | G4double limitQ2; |
---|
91 | G4double massGeV; |
---|
92 | G4double mass2GeV2; |
---|
93 | G4double massA; |
---|
94 | G4double massA2; |
---|
95 | G4int dnkE[NENERGY]; |
---|
96 | G4double maxQ2[NENERGY]; |
---|
97 | G4double CrossSecMaxQ2[NENERGY]; |
---|
98 | |
---|
99 | G4double TableQ2[ONQ2]; |
---|
100 | G4double TableCrossSec[NQTABLE]; |
---|
101 | }; |
---|
102 | |
---|
103 | ///////////////////////////////////////////////////////////////////// |
---|
104 | // |
---|
105 | // |
---|
106 | |
---|
107 | class G4ElasticHadrNucleusHE : public G4VHadronElastic |
---|
108 | { |
---|
109 | public: |
---|
110 | |
---|
111 | G4ElasticHadrNucleusHE(); |
---|
112 | |
---|
113 | virtual ~G4ElasticHadrNucleusHE(); |
---|
114 | |
---|
115 | virtual G4double SampleInvariantT(const G4ParticleDefinition* p, |
---|
116 | G4double plab, |
---|
117 | G4int Z, G4int A); |
---|
118 | |
---|
119 | G4double SampleT(const G4ParticleDefinition* p, |
---|
120 | G4double plab, |
---|
121 | G4int Z, G4int A); |
---|
122 | |
---|
123 | G4double HadronNucleusQ2_2(G4ElasticData * pElD, G4int Z, |
---|
124 | G4double plabGeV, G4double tmax); |
---|
125 | |
---|
126 | void DefineHadronValues(G4int Z); |
---|
127 | |
---|
128 | G4double GetLightFq2(G4int Z, G4int A, G4double Q); |
---|
129 | G4double GetHeavyFq2(G4int Nucleus, G4double *LineFq2); |
---|
130 | |
---|
131 | G4double GetQ2_2(G4int N, G4double * Q, |
---|
132 | G4double * F, G4double R); |
---|
133 | |
---|
134 | G4double LineInterpol(G4double p0, G4double p2, |
---|
135 | G4double c1, G4double c2, |
---|
136 | G4double p); |
---|
137 | |
---|
138 | G4double HadrNucDifferCrSec(G4int Nucleus, G4double Q2); |
---|
139 | |
---|
140 | void InterpolateHN(G4int n, const G4double EnP[], |
---|
141 | const G4double C0P[], const G4double C1P[], |
---|
142 | const G4double B0P[], const G4double B1P[]); |
---|
143 | |
---|
144 | // hide assignment operator |
---|
145 | G4ElasticHadrNucleusHE & operator=(const G4ElasticHadrNucleusHE &right); |
---|
146 | G4ElasticHadrNucleusHE(const G4ElasticHadrNucleusHE&); |
---|
147 | |
---|
148 | G4double GetBinomCof( G4int n, G4int m ); |
---|
149 | |
---|
150 | G4double GetFt(G4double Q2); |
---|
151 | |
---|
152 | G4double GetDistrFun(G4double Q2); |
---|
153 | |
---|
154 | G4double GetQ2(G4double Ran); |
---|
155 | |
---|
156 | G4double HadronProtonQ2(const G4ParticleDefinition * aHadron, |
---|
157 | G4double inLabMom); |
---|
158 | |
---|
159 | void GetKinematics(const G4ParticleDefinition * aHadron, |
---|
160 | G4double MomentumH); |
---|
161 | private: |
---|
162 | |
---|
163 | void Binom(); |
---|
164 | |
---|
165 | // fields |
---|
166 | |
---|
167 | G4int iHadrCode; |
---|
168 | G4int iHadron; |
---|
169 | G4int HadronCode[NHADRONS]; |
---|
170 | G4int HadronType[NHADRONS]; |
---|
171 | G4int HadronType1[NHADRONS]; |
---|
172 | |
---|
173 | // protection energy and momemtum |
---|
174 | |
---|
175 | G4double lowestEnergyLimit; |
---|
176 | G4double plabLowLimit; |
---|
177 | G4double dQ2; |
---|
178 | |
---|
179 | // transition between internal and CLHEP units |
---|
180 | |
---|
181 | G4double MbToGeV2; |
---|
182 | G4double sqMbToGeV; |
---|
183 | G4double Fm2ToGeV2; |
---|
184 | G4double GeV2; |
---|
185 | G4double protonM; // GeV |
---|
186 | G4double protonM2; // GeV^2 |
---|
187 | |
---|
188 | // projectile kinematics in GeV |
---|
189 | |
---|
190 | G4double hMass; |
---|
191 | G4double hMass2; |
---|
192 | G4double hLabMomentum; |
---|
193 | G4double hLabMomentum2; |
---|
194 | G4double MomentumCM; |
---|
195 | G4double HadrEnergy; |
---|
196 | |
---|
197 | // nucleaus parameters |
---|
198 | |
---|
199 | G4double R1, R2, Pnucl, Aeff; |
---|
200 | G4int NumbN; |
---|
201 | |
---|
202 | // elastic parameters |
---|
203 | |
---|
204 | G4double HadrTot, HadrSlope, HadrReIm, TotP, |
---|
205 | DDSect2, DDSect3, ConstU, FmaxT; |
---|
206 | |
---|
207 | // momentum limits for different models of hadron/nucleon scatetring |
---|
208 | G4double BoundaryP[7], BoundaryTL[7], BoundaryTG[7]; |
---|
209 | |
---|
210 | // parameterisation of scattering |
---|
211 | |
---|
212 | G4double Slope1, Slope2, Coeff1, Coeff2, MaxTR; |
---|
213 | G4double Slope0, Coeff0; |
---|
214 | |
---|
215 | G4double aAIm, aDIm, Dtot11; |
---|
216 | |
---|
217 | G4double Energy[NENERGY]; |
---|
218 | G4double LowEdgeEnergy[NENERGY]; |
---|
219 | |
---|
220 | G4double SetBinom[240][240]; |
---|
221 | |
---|
222 | G4ElasticData* SetOfElasticData[NHADRONS][93]; |
---|
223 | G4NistManager* nistManager; |
---|
224 | |
---|
225 | }; // The end of the class description |
---|
226 | |
---|
227 | //////////////////////////////////////////////////////////////// |
---|
228 | |
---|
229 | inline |
---|
230 | G4double G4ElasticHadrNucleusHE::LineInterpol(G4double p1, G4double p2, |
---|
231 | G4double c1, G4double c2, |
---|
232 | G4double p) |
---|
233 | { |
---|
234 | // G4cout<<" LineInterpol: p1 p2 c1 c2 "<<p1<<" "<<p2<<" " |
---|
235 | // <<c1<<" "<<c2<<" c "<<c1+(p-p1)*(c2-c1)/(p2-p1)<<G4endl; |
---|
236 | |
---|
237 | |
---|
238 | return c1+(p-p1)*(c2-c1)/(p2-p1); |
---|
239 | } |
---|
240 | |
---|
241 | //////////////////////////////////////////////////////////////// |
---|
242 | |
---|
243 | inline |
---|
244 | void G4ElasticHadrNucleusHE::InterpolateHN(G4int n, const G4double EnP[], |
---|
245 | const G4double C0P[], const G4double C1P[], |
---|
246 | const G4double B0P[], const G4double B1P[]) |
---|
247 | { |
---|
248 | G4int i; |
---|
249 | |
---|
250 | for(i=1; i<n; i++) if(hLabMomentum <= EnP[i]) break; |
---|
251 | |
---|
252 | if(i == n) i = n - 1; |
---|
253 | |
---|
254 | Coeff0 = LineInterpol(EnP[i], EnP[i-1], C0P[i], C0P[i-1], hLabMomentum); |
---|
255 | Coeff1 = LineInterpol(EnP[i], EnP[i-1], C1P[i], C1P[i-1], hLabMomentum); |
---|
256 | Slope0 = LineInterpol(EnP[i], EnP[i-1], B0P[i], B0P[i-1], hLabMomentum); |
---|
257 | Slope1 = LineInterpol(EnP[i], EnP[i-1], B1P[i], B1P[i-1], hLabMomentum); |
---|
258 | |
---|
259 | // G4cout<<" InterpolHN: n i "<<n<<" "<<i<<" Mom " |
---|
260 | // <<hLabMomentum<<G4endl; |
---|
261 | } |
---|
262 | |
---|
263 | //////////////////////////////////////////////////////////////// |
---|
264 | |
---|
265 | inline |
---|
266 | G4double G4ElasticHadrNucleusHE::GetBinomCof( G4int n, G4int m ) |
---|
267 | { |
---|
268 | if ( n >= m && n <= 240) return SetBinom[n][m]; |
---|
269 | else return 0.; |
---|
270 | } |
---|
271 | |
---|
272 | //////////////////////////////////////////////////////////////// |
---|
273 | |
---|
274 | inline |
---|
275 | G4double G4ElasticHadrNucleusHE::GetDistrFun(G4double Q2) |
---|
276 | { |
---|
277 | return GetFt(Q2)/FmaxT; |
---|
278 | } |
---|
279 | |
---|
280 | #endif |
---|