Geant4  v4-10.4-release
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G4INCLNpiToLKChannel.cc
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25 //
26 // INCL++ intra-nuclear cascade model
27 // Alain Boudard, CEA-Saclay, France
28 // Joseph Cugnon, University of Liege, Belgium
29 // Jean-Christophe David, CEA-Saclay, France
30 // Pekka Kaitaniemi, CEA-Saclay, France, and Helsinki Institute of Physics, Finland
31 // Sylvie Leray, CEA-Saclay, France
32 // Davide Mancusi, CEA-Saclay, France
33 //
34 #define INCLXX_IN_GEANT4_MODE 1
35 
36 #include "globals.hh"
37 
38 #include "G4INCLNpiToLKChannel.hh"
39 #include "G4INCLKinematicsUtils.hh"
40 #include "G4INCLBinaryCollisionAvatar.hh"
41 #include "G4INCLRandom.hh"
42 #include "G4INCLGlobals.hh"
43 #include "G4INCLLogger.hh"
44 #include <algorithm>
45 #include "G4INCLPhaseSpaceGenerator.hh"
46 
47 namespace G4INCL {
48 
49  NpiToLKChannel::NpiToLKChannel(Particle *p1, Particle *p2)
50  : particle1(p1), particle2(p2)
51  {}
52 
53  NpiToLKChannel::~NpiToLKChannel(){}
54 
55  void NpiToLKChannel::fillFinalState(FinalState *fs) {
56 
57  Particle *nucleon;
58  Particle *pion;
59 
60  if(particle1->isNucleon()){
61  nucleon = particle1;
62  pion = particle2;
63  }
64  else{
65  nucleon = particle2;
66  pion = particle1;
67  }
68 
69  const G4int iso = ParticleTable::getIsospin(nucleon->getType()) + ParticleTable::getIsospin(pion->getType());
70 
71  ParticleType KaonType;
72 
73  if(iso == 1) KaonType = KPlus;
74  else if(iso == -1) KaonType = KZero;
75  else{
76  INCL_ERROR("NpiToLKChannel called with an inconsitant pair\n");
77  return;
78  }
79 
80  ThreeVector mom_kaon = KaonMomentum(pion,nucleon);
81 
82  nucleon->setType(Lambda);
83  pion->setType(KaonType);
84 
85  G4double norm = KinematicsUtils::momentumInCM(nucleon,pion);
86 
87  pion->setMomentum(mom_kaon*norm);
88  nucleon->setMomentum(-mom_kaon*norm);
89 
90  nucleon->adjustEnergyFromMomentum();
91  pion->adjustEnergyFromMomentum();
92 
93  //INCL_DEBUG("NpiToLK " << (pion->getMomentum().theta()) * 180. / G4INCL::Math::pi << '\n');
94 
95  fs->addModifiedParticle(nucleon);
96  fs->addModifiedParticle(pion);
97 
98  }
99 
100  ThreeVector NpiToLKChannel::KaonMomentum(Particle const * const pion, Particle const * const nucleon){
101 
102  const G4double pLab = KinematicsUtils::momentumInLab(pion,nucleon);
103 
104  if(pLab < 930.) return Random::normVector(); // isotropic
105 
106  G4double cos_theta = 1.;
107  G4double sin_theta = 0.;
108  const G4double cos_phi = std::cos(Random::shoot()*Math::twoPi);
109  const G4double sin_phi = std::sqrt(1-cos_phi*cos_phi);
110 
111  const G4double x = pion->getMomentum().getX();
112  const G4double y = pion->getMomentum().getY();
113  const G4double z = pion->getMomentum().getZ();
114 
115  const G4double r = std::sqrt(x*x+y*y+z*z);
116  const G4double rho = std::sqrt(x*x+y*y);
117 
118  if(pLab >= 2375.){
119  const G4double b = 12. * pLab/2375.; // correspond to the forward slope description at 2375 MeV/c
120  cos_theta = std::log(Random::shoot()*(std::exp(b)-std::exp(-b))+std::exp(-b))/b;
121  sin_theta = std::sqrt(1-cos_theta*cos_theta);
122 
123  }
124  else{
125  const G4double Legendre_coef[290][8] = {
126  {930,0.18739,-0.06,-0.00621,-2e-05,0,0,0},
127  {935,0.22915,-0.05104,-0.00013,-2e-05,0,0,0},
128  {940,0.27087,-0.04199,0.006,-2e-05,0,0,0},
129  {945,0.31247,-0.0327,0.01223,-2e-05,0,0,0},
130  {950,0.35388,-0.02306,0.01863,-2e-05,0,0,0},
131  {955,0.39503,-0.01292,0.02525,-2e-05,0,0,0},
132  {960,0.43586,-0.00217,0.03214,-3e-05,0,0,0},
133  {965,0.4763,0.00933,0.03938,-3e-05,0,0,0},
134  {970,0.51629,0.02171,0.04702,-3e-05,0,0,0},
135  {975,0.55575,0.03509,0.05511,-3e-05,0,0,0},
136  {980,0.59462,0.04962,0.06371,-3e-05,0,0,0},
137  {985,0.63291,0.06537,0.073,-3e-05,0,0,0},
138  {990,0.6706,0.08222,0.0833,-3e-05,0,0,0},
139  {995,0.70756,0.09998,0.09494,-2e-05,0,0,0},
140  {1000,0.74362,0.11842,0.10816,-2e-05,0,0,0},
141  {1005,0.77857,0.13733,0.12261,-2e-05,0,0,0},
142  {1010,0.8121,0.15648,0.13737,-1e-05,0,0,0},
143  {1015,0.84402,0.17556,0.15102,-1e-05,0,0,0},
144  {1020,0.87447,0.19424,0.16201,0,0,0,0},
145  {1025,0.90358,0.21231,0.16943,1e-05,0,0,0},
146  {1030,0.93118,0.22961,0.17264,2e-05,0,0,0},
147  {1035,0.95642,0.24598,0.17205,4e-05,0,0,0},
148  {1040,0.9784,0.26128,0.16958,6e-05,0,0,0},
149  {1045,0.99681,0.2754,0.16737,8e-05,0,0,0},
150  {1050,1.01213,0.2883,0.16575,1e-04,0,0,0},
151  {1055,1.02473,0.29992,0.16397,0.00012,0,0,0},
152  {1060,1.03467,0.31018,0.16082,0.00015,0,0,0},
153  {1065,1.0417,0.31907,0.15599,0.00018,0,0,0},
154  {1070,1.04567,0.32661,0.14947,0.00021,0,0,0},
155  {1075,1.04705,0.3329,0.14185,0.00024,0,0,0},
156  {1080,1.04645,0.33806,0.13383,0.00027,0,0,0},
157  {1085,1.04451,0.34222,0.12613,3e-04,0,0,0},
158  {1090,1.04182,0.34551,0.11946,0.00032,0,0,0},
159  {1095,1.03903,0.34804,0.11454,0.00034,0,0,0},
160  {1100,1.03662,0.34992,0.11184,0.00036,0,0,0},
161  {1105,1.03464,0.35117,0.11087,0.00037,0,0,0},
162  {1110,1.03303,0.3518,0.11087,0.00037,0,0,0},
163  {1115,1.0317,0.35178,0.1111,0.00037,0,0,0},
164  {1120,1.03059,0.35112,0.11082,0.00035,0,0,0},
165  {1125,1.02963,0.34981,0.10927,0.00031,0,0,0},
166  {1130,1.02873,0.34786,0.10573,0.00027,0,0,0},
167  {1135,1.02779,0.34528,0.09967,2e-04,0,0,0},
168  {1140,1.02643,0.34217,0.09158,0.00012,0,0,0},
169  {1145,1.02426,0.33869,0.08216,2e-05,0,0,0},
170  {1150,1.02085,0.33495,0.07213,-0.00011,0,0,0},
171  {1155,1.01581,0.33109,0.0622,-0.00026,0,0,0},
172  {1160,1.00873,0.32726,0.05308,-0.00044,0,0,0},
173  {1165,0.99942,0.32354,0.04523,-0.00065,0,0,0},
174  {1170,0.98823,0.31998,0.03857,-9e-04,0,0,0},
175  {1175,0.97557,0.31661,0.03292,-0.00117,0,0,0},
176  {1180,0.96183,0.31345,0.02813,-0.00148,0,0,0},
177  {1185,0.94743,0.31053,0.02403,-0.00183,0,0,0},
178  {1190,0.93279,0.30788,0.02045,-0.00221,1e-05,-1e-05,0},
179  {1195,0.91829,0.30552,0.01722,-0.00263,1e-05,-1e-05,0},
180  {1200,0.90437,0.30349,0.0142,-0.00309,1e-05,-1e-05,0},
181  {1205,0.89141,0.30181,0.0112,-0.0036,1e-05,-1e-05,0},
182  {1210,0.87983,0.30052,0.00806,-0.00414,1e-05,-1e-05,0},
183  {1215,0.87005,0.29962,0.00463,-0.00473,1e-05,-1e-05,0},
184  {1220,0.86245,0.29917,0.00072,-0.00537,1e-05,-1e-05,0},
185  {1225,0.85746,0.29917,-0.00381,-0.00605,1e-05,-1e-05,0},
186  {1230,0.85526,0.29965,-0.00909,-0.00678,1e-05,-1e-05,0},
187  {1235,0.85551,0.30056,-0.01516,-0.00754,1e-05,-2e-05,0},
188  {1240,0.85783,0.30188,-0.02202,-0.00833,1e-05,-2e-05,0},
189  {1245,0.86183,0.30357,-0.02969,-0.00912,0,-2e-05,0},
190  {1250,0.86711,0.30559,-0.03818,-0.00992,0,-2e-05,0},
191  {1255,0.87328,0.30789,-0.0475,-0.0107,0,-2e-05,0},
192  {1260,0.87995,0.31046,-0.05768,-0.01146,0,-2e-05,0},
193  {1265,0.88672,0.31324,-0.06872,-0.01218,0,-2e-05,0},
194  {1270,0.89321,0.3162,-0.08064,-0.01285,0,-2e-05,0},
195  {1275,0.89901,0.31931,-0.09346,-0.01347,0,-2e-05,0},
196  {1280,0.90375,0.32252,-0.10718,-0.01401,0,-2e-05,0},
197  {1285,0.90702,0.3258,-0.12182,-0.01447,-1e-05,-2e-05,0},
198  {1290,0.90844,0.32912,-0.13739,-0.01483,-1e-05,-2e-05,-1e-05},
199  {1295,0.90798,0.33251,-0.15381,-0.01508,-1e-05,-2e-05,-1e-05},
200  {1300,0.90606,0.33607,-0.17084,-0.01516,-2e-05,-2e-05,-1e-05},
201  {1305,0.90314,0.33995,-0.18827,-0.01504,-2e-05,-2e-05,-1e-05},
202  {1310,0.89965,0.34425,-0.20584,-0.01466,-2e-05,-2e-05,-1e-05},
203  {1315,0.89606,0.34911,-0.22335,-0.01398,-3e-05,-1e-05,-1e-05},
204  {1320,0.89281,0.35464,-0.24054,-0.01297,-3e-05,-1e-05,-2e-05},
205  {1325,0.89036,0.36097,-0.2572,-0.01157,-4e-05,-1e-05,-2e-05},
206  {1330,0.88915,0.36823,-0.27308,-0.00975,-5e-05,0,-2e-05},
207  {1335,0.88959,0.37652,-0.28798,-0.00745,-5e-05,0,-2e-05},
208  {1340,0.89162,0.38589,-0.30176,-0.00461,-6e-05,1e-05,-3e-05},
209  {1345,0.89499,0.39635,-0.31438,-0.00118,-6e-05,2e-05,-3e-05},
210  {1350,0.89948,0.40792,-0.32575,0.00291,-7e-05,3e-05,-3e-05},
211  {1355,0.90484,0.42061,-0.3358,0.00773,-8e-05,4e-05,-4e-05},
212  {1360,0.91082,0.43443,-0.34446,0.01335,-8e-05,5e-05,-4e-05},
213  {1365,0.91718,0.44939,-0.35167,0.01983,-9e-05,7e-05,-4e-05},
214  {1370,0.92368,0.46552,-0.35736,0.02723,-1e-04,8e-05,-4e-05},
215  {1375,0.93008,0.48281,-0.36144,0.03562,-1e-04,1e-04,-5e-05},
216  {1380,0.93614,0.50128,-0.36387,0.04506,-0.00011,0.00012,-5e-05},
217  {1385,0.94161,0.52096,-0.36455,0.05562,-0.00011,0.00014,-5e-05},
218  {1390,0.94624,0.54184,-0.36343,0.06737,-0.00012,0.00016,-5e-05},
219  {1395,0.94981,0.56394,-0.36043,0.08036,-0.00012,0.00018,-5e-05},
220  {1400,0.95212,0.58725,-0.35554,0.09464,-0.00012,0.00021,-5e-05},
221  {1405,0.95323,0.61167,-0.34898,0.11013,-0.00012,0.00023,-5e-05},
222  {1410,0.95325,0.63706,-0.34102,0.12669,-0.00012,0.00026,-5e-05},
223  {1415,0.95229,0.6633,-0.33195,0.14424,-0.00012,0.00029,-5e-05},
224  {1420,0.95046,0.69026,-0.32204,0.16264,-0.00011,0.00032,-4e-05},
225  {1425,0.94788,0.7178,-0.31156,0.1818,-1e-04,0.00035,-4e-05},
226  {1430,0.94466,0.74581,-0.30079,0.20158,-9e-05,0.00038,-3e-05},
227  {1435,0.9409,0.77415,-0.29002,0.22189,-8e-05,0.00041,-3e-05},
228  {1440,0.93673,0.80269,-0.2795,0.24261,-6e-05,0.00044,-2e-05},
229  {1445,0.93225,0.8313,-0.26953,0.26362,-4e-05,0.00047,-1e-05},
230  {1450,0.92757,0.85985,-0.26038,0.28481,-1e-05,5e-04,1e-05},
231  {1455,0.92282,0.88822,-0.25232,0.30607,2e-05,0.00052,2e-05},
232  {1460,0.91806,0.91629,-0.24556,0.3273,6e-05,0.00055,4e-05},
233  {1465,0.9133,0.94406,-0.24008,0.34847,1e-04,0.00057,6e-05},
234  {1470,0.90849,0.97153,-0.23576,0.36956,0.00015,0.00058,8e-05},
235  {1475,0.90359,0.99871,-0.2325,0.39056,0.00021,0.00059,0.00011},
236  {1480,0.89857,1.02561,-0.2302,0.41146,0.00027,0.00059,0.00014},
237  {1485,0.89338,1.05224,-0.22876,0.43223,0.00034,0.00059,0.00017},
238  {1490,0.88799,1.0786,-0.22808,0.45286,0.00042,0.00057,2e-04},
239  {1495,0.88235,1.1047,-0.22805,0.47333,5e-04,0.00054,0.00024},
240  {1500,0.87644,1.13056,-0.22858,0.49364,0.00059,0.00049,0.00028},
241  {1505,0.87021,1.15617,-0.22955,0.51376,0.00069,0.00043,0.00033},
242  {1510,0.86362,1.18155,-0.23086,0.53368,8e-04,0.00035,0.00037},
243  {1515,0.85663,1.20671,-0.23242,0.55338,0.00092,0.00026,0.00043},
244  {1520,0.84921,1.23163,-0.23416,0.57284,0.00104,0.00014,0.00048},
245  {1525,0.84136,1.25616,-0.23614,0.59195,0.00118,1e-05,0.00054},
246  {1530,0.83308,1.28016,-0.23847,0.6106,0.00132,-0.00015,6e-04},
247  {1535,0.82437,1.30346,-0.24125,0.62869,0.00146,-0.00034,0.00066},
248  {1540,0.81522,1.32589,-0.24459,0.6461,0.0016,-0.00055,0.00072},
249  {1545,0.80565,1.34729,-0.2486,0.66271,0.00175,-8e-04,0.00079},
250  {1550,0.79564,1.3675,-0.25336,0.67841,0.00189,-0.00107,0.00085},
251  {1555,0.78521,1.38636,-0.259,0.6931,0.00204,-0.00138,0.00091},
252  {1560,0.77436,1.4037,-0.26561,0.70666,0.00217,-0.00173,0.00096},
253  {1565,0.76308,1.41937,-0.2733,0.71898,0.0023,-0.00211,0.00101},
254  {1570,0.75138,1.4332,-0.28217,0.72994,0.00243,-0.00254,0.00106},
255  {1575,0.73925,1.44502,-0.29233,0.73943,0.00254,-0.00301,0.0011},
256  {1580,0.72671,1.45474,-0.30383,0.74739,0.00264,-0.00352,0.00114},
257  {1585,0.71375,1.46248,-0.31657,0.75388,0.00272,-0.00407,0.00116},
258  {1590,0.7004,1.46841,-0.33037,0.75901,0.00278,-0.00465,0.00118},
259  {1595,0.68665,1.47272,-0.3451,0.76289,0.0028,-0.00527,0.00118},
260  {1600,0.67251,1.4756,-0.36058,0.76565,0.00278,-0.00591,0.00115},
261  {1605,0.658,1.47722,-0.37667,0.76737,0.00272,-0.00657,0.00111},
262  {1610,0.64313,1.47777,-0.3932,0.76819,0.00259,-0.00725,0.00104},
263  {1615,0.6279,1.47743,-0.41002,0.76821,0.00241,-0.00795,0.00094},
264  {1620,0.61232,1.47637,-0.42696,0.76754,0.00215,-0.00865,0.00081},
265  {1625,0.59641,1.47479,-0.44387,0.76629,0.00182,-0.00935,0.00064},
266  {1630,0.58017,1.47287,-0.4606,0.76457,0.0014,-0.01005,0.00043},
267  {1635,0.56361,1.47078,-0.47698,0.7625,0.00089,-0.01075,0.00018},
268  {1640,0.54674,1.4687,-0.49286,0.76019,0.00028,-0.01143,-0.00011},
269  {1645,0.52957,1.46683,-0.50808,0.75774,-0.00044,-0.0121,-0.00045},
270  {1650,0.51216,1.46529,-0.5225,0.75525,-0.00127,-0.01274,-0.00085},
271  {1655,0.49484,1.46406,-0.53609,0.75274,-0.00222,-0.01333,-0.0013},
272  {1660,0.47796,1.46306,-0.54882,0.75023,-0.0033,-0.01384,-0.00181},
273  {1665,0.46188,1.4622,-0.56068,0.7477,-0.00452,-0.01424,-0.00237},
274  {1670,0.44698,1.46141,-0.57165,0.74517,-0.00587,-0.01449,-0.003},
275  {1675,0.43363,1.46061,-0.58171,0.74264,-0.00737,-0.01456,-0.00369},
276  {1680,0.42219,1.45972,-0.59084,0.74012,-0.00902,-0.01443,-0.00444},
277  {1685,0.41302,1.45866,-0.59903,0.73761,-0.01083,-0.01405,-0.00527},
278  {1690,0.40649,1.45737,-0.60625,0.73511,-0.01281,-0.01341,-0.00616},
279  {1695,0.40298,1.45575,-0.6125,0.73264,-0.01495,-0.01246,-0.00712},
280  {1700,0.40284,1.45373,-0.61774,0.73018,-0.01727,-0.01118,-0.00816},
281  {1705,0.40645,1.45123,-0.62196,0.72776,-0.01978,-0.00954,-0.00928},
282  {1710,0.41402,1.44822,-0.62516,0.72539,-0.02247,-0.00749,-0.01047},
283  {1715,0.42517,1.44489,-0.6274,0.72323,-0.02531,-0.005,-0.01172},
284  {1720,0.43937,1.44146,-0.62876,0.72143,-0.02827,-0.00201,-0.01302},
285  {1725,0.45609,1.43817,-0.62931,0.72016,-0.0313,0.00154,-0.01434},
286  {1730,0.4748,1.43525,-0.62913,0.71959,-0.03438,0.00569,-0.01566},
287  {1735,0.49497,1.43292,-0.6283,0.71989,-0.03746,0.01051,-0.01698},
288  {1740,0.51607,1.43142,-0.6269,0.72121,-0.04051,0.01603,-0.01826},
289  {1745,0.53758,1.43098,-0.62499,0.72373,-0.04349,0.02233,-0.0195},
290  {1750,0.55895,1.43183,-0.62267,0.7276,-0.04637,0.02944,-0.02067},
291  {1755,0.57967,1.4342,-0.61999,0.73301,-0.0491,0.03742,-0.02175},
292  {1760,0.5992,1.43833,-0.61705,0.74011,-0.05165,0.04632,-0.02273},
293  {1765,0.61701,1.44443,-0.61392,0.74907,-0.05398,0.0562,-0.0236},
294  {1770,0.63257,1.45275,-0.61067,0.76005,-0.05606,0.06712,-0.02432},
295  {1775,0.64535,1.46351,-0.60738,0.77322,-0.05785,0.07911,-0.02489},
296  {1780,0.65496,1.47687,-0.60408,0.78868,-0.05929,0.09221,-0.02527},
297  {1785,0.66162,1.49263,-0.60057,0.80621,-0.06023,0.10632,-0.02541},
298  {1790,0.66566,1.51054,-0.5966,0.82552,-0.06051,0.12132,-0.02522},
299  {1795,0.66742,1.53032,-0.59194,0.84633,-0.05997,0.13708,-0.02464},
300  {1800,0.66727,1.55172,-0.58634,0.86836,-0.05843,0.15349,-0.02359},
301  {1805,0.66553,1.57446,-0.57955,0.89131,-0.05573,0.17042,-0.02199},
302  {1810,0.66256,1.59828,-0.57132,0.9149,-0.05171,0.18775,-0.01978},
303  {1815,0.6587,1.62291,-0.56141,0.93885,-0.04619,0.20535,-0.01688},
304  {1820,0.6543,1.64809,-0.54958,0.96288,-0.03901,0.2231,-0.01321},
305  {1825,0.64971,1.67356,-0.53558,0.98668,-0.03001,0.24088,-0.00871},
306  {1830,0.64526,1.69904,-0.51916,1.00999,-0.01902,0.25856,-0.00329},
307  {1835,0.64131,1.72427,-0.50008,1.0325,-0.00587,0.27603,0.00312},
308  {1840,0.63821,1.74898,-0.47809,1.05395,0.00961,0.29315,0.01058},
309  {1845,0.63629,1.77291,-0.45295,1.07404,0.02757,0.30981,0.01917},
310  {1850,0.63591,1.79579,-0.42441,1.09248,0.04819,0.32589,0.02898},
311  {1855,0.63741,1.81736,-0.39222,1.10899,0.07164,0.34125,0.04006},
312  {1860,0.64113,1.83735,-0.35615,1.12328,0.09807,0.35578,0.0525},
313  {1865,0.64742,1.8555,-0.31594,1.13507,0.12766,0.36936,0.06637},
314  {1870,0.65664,1.87153,-0.27136,1.14408,0.16058,0.38186,0.08174},
315  {1875,0.66911,1.88519,-0.22214,1.15001,0.19698,0.39315,0.09868},
316  {1880,0.68509,1.89627,-0.16819,1.15266,0.23695,0.40315,0.11724},
317  {1885,0.70432,1.90488,-0.10992,1.15218,0.28023,0.4119,0.1373},
318  {1890,0.72647,1.91118,-0.04788,1.14879,0.3265,0.41946,0.15872},
319  {1895,0.75118,1.91533,0.01738,1.14272,0.37541,0.42591,0.18135},
320  {1900,0.77812,1.91751,0.08531,1.13419,0.42662,0.43131,0.20505},
321  {1905,0.80692,1.91788,0.15535,1.12342,0.47979,0.43573,0.22967},
322  {1910,0.83725,1.91661,0.22697,1.11064,0.53459,0.43925,0.25507},
323  {1915,0.86875,1.91386,0.2996,1.09608,0.59068,0.44194,0.28109},
324  {1920,0.90109,1.90981,0.37269,1.07996,0.64773,0.44385,0.30761},
325  {1925,0.9339,1.90461,0.4457,1.06251,0.70538,0.44508,0.33446},
326  {1930,0.96685,1.89844,0.51808,1.04394,0.76331,0.44567,0.36151},
327  {1935,0.99958,1.89146,0.58927,1.02449,0.82118,0.44571,0.38861},
328  {1940,1.03175,1.88384,0.65873,1.00439,0.87864,0.44526,0.41561},
329  {1945,1.06301,1.87575,0.72589,0.98385,0.93537,0.44439,0.44237},
330  {1950,1.09301,1.86735,0.79022,0.9631,0.99102,0.44318,0.46874},
331  {1955,1.1214,1.85881,0.85116,0.94236,1.04526,0.44169,0.49458},
332  {1960,1.14785,1.8503,0.90817,0.92187,1.09774,0.43999,0.51975},
333  {1965,1.17199,1.84198,0.96068,0.90184,1.14813,0.43816,0.54408},
334  {1970,1.19348,1.83402,1.00815,0.88251,1.1961,0.43625,0.56745},
335  {1975,1.21198,1.82659,1.05004,0.86409,1.2413,0.43435,0.58971},
336  {1980,1.22713,1.81986,1.08578,0.84681,1.28339,0.43252,0.6107},
337  {1985,1.23859,1.81398,1.11483,0.8309,1.32204,0.43084,0.63029},
338  {1990,1.24601,1.80914,1.13664,0.81658,1.35691,0.42936,0.64833},
339  {1995,1.24905,1.80549,1.15065,0.80408,1.38766,0.42817,0.66467},
340  {2000,1.24735,1.8032,1.15632,0.79362,1.41396,0.42732,0.67917},
341  {2005,1.2407,1.80242,1.15334,0.78541,1.43554,0.42692,0.6917},
342  {2010,1.22949,1.80321,1.14236,0.77959,1.45242,0.42713,0.70224},
343  {2015,1.21419,1.80564,1.12429,0.7763,1.4647,0.42812,0.71076},
344  {2020,1.19533,1.80973,1.10003,0.77565,1.47248,0.4301,0.71727},
345  {2025,1.17341,1.81555,1.07046,0.77778,1.47586,0.43325,0.72176},
346  {2030,1.14892,1.82314,1.0365,0.78281,1.47493,0.43775,0.7242},
347  {2035,1.12238,1.83254,0.99904,0.79087,1.4698,0.44379,0.7246},
348  {2040,1.09429,1.84381,0.95898,0.8021,1.46056,0.45155,0.72294},
349  {2045,1.06515,1.85699,0.91723,0.8166,1.44731,0.46123,0.71921},
350  {2050,1.03547,1.87214,0.87467,0.83452,1.43015,0.473,0.71341},
351  {2055,1.00576,1.88929,0.83222,0.85598,1.40917,0.48707,0.70551},
352  {2060,0.97644,1.90846,0.79062,0.88103,1.38453,0.50353,0.69555},
353  {2065,0.94767,1.92947,0.75007,0.90941,1.35653,0.52226,0.6837},
354  {2070,0.91954,1.95211,0.71063,0.94081,1.32555,0.54305,0.67014},
355  {2075,0.89213,1.97615,0.67234,0.97489,1.29194,0.5657,0.65508},
356  {2080,0.86552,2.0014,0.63526,1.01133,1.25607,0.58999,0.63872},
357  {2085,0.83981,2.02762,0.59943,1.04978,1.21831,0.61572,0.62125},
358  {2090,0.81506,2.0546,0.56491,1.08994,1.17903,0.64269,0.60288},
359  {2095,0.79138,2.08213,0.53175,1.13146,1.13857,0.67069,0.5838},
360  {2100,0.76883,2.11,0.5,1.17402,1.09732,0.69951,0.56422},
361  {2105,0.74751,2.13798,0.46972,1.2173,1.05563,0.72895,0.54432},
362  {2110,0.72751,2.16586,0.44094,1.26096,1.01387,0.7588,0.52432},
363  {2115,0.70889,2.19343,0.41374,1.30467,0.9724,0.78886,0.5044},
364  {2120,0.69174,2.22049,0.38814,1.34815,0.93155,0.81894,0.48475},
365  {2125,0.67605,2.24701,0.36417,1.39128,0.89144,0.84898,0.46544},
366  {2130,0.6618,2.27294,0.34183,1.43399,0.85218,0.87891,0.44653},
367  {2135,0.64897,2.29827,0.32114,1.47621,0.81386,0.90871,0.42808},
368  {2140,0.63754,2.32297,0.3021,1.51786,0.77658,0.9383,0.41014},
369  {2145,0.62749,2.34703,0.28473,1.55887,0.74042,0.96766,0.39278},
370  {2150,0.61881,2.37041,0.26902,1.59918,0.70547,0.99672,0.37603},
371  {2155,0.61148,2.39309,0.25499,1.63869,0.67185,1.02545,0.35997},
372  {2160,0.60547,2.41504,0.24265,1.67735,0.63963,1.05379,0.34465},
373  {2165,0.60077,2.43625,0.23201,1.71507,0.60891,1.08169,0.33013},
374  {2170,0.59735,2.45669,0.22308,1.75179,0.57979,1.10911,0.31645},
375  {2175,0.59521,2.47634,0.21586,1.78743,0.55236,1.136,0.30368},
376  {2180,0.59431,2.49517,0.21037,1.82192,0.52671,1.1623,0.29188},
377  {2185,0.59465,2.51315,0.20661,1.85518,0.50293,1.18798,0.2811},
378  {2190,0.59619,2.53027,0.20459,1.88715,0.48113,1.21298,0.27139},
379  {2195,0.59893,2.5465,0.20433,1.91774,0.46139,1.23725,0.26282},
380  {2200,0.60284,2.56181,0.20582,1.9469,0.44381,1.26075,0.25544},
381  {2205,0.60791,2.57618,0.20909,1.97453,0.42849,1.28343,0.2493},
382  {2210,0.61411,2.5896,0.21413,2.00058,0.41551,1.30524,0.24447},
383  {2215,0.62143,2.60202,0.22096,2.02496,0.40496,1.32612,0.24099},
384  {2220,0.62984,2.61344,0.22959,2.04761,0.39696,1.34604,0.23893},
385  {2225,0.63934,2.62382,0.24002,2.06845,0.39157,1.36495,0.23834},
386  {2230,0.64989,2.63314,0.25227,2.0874,0.38891,1.38278,0.23928},
387  {2235,0.66148,2.64138,0.26634,2.1044,0.38907,1.39951,0.24181},
388  {2240,0.67408,2.64852,0.28223,2.1194,0.3921,1.41509,0.24595},
389  {2245,0.68768,2.6546,0.29989,2.13244,0.39794,1.42955,0.25168},
390  {2250,0.70222,2.65965,0.31925,2.14359,0.40647,1.44294,0.25893},
391  {2255,0.71767,2.66371,0.34024,2.15294,0.4176,1.45528,0.26765},
392  {2260,0.73399,2.66683,0.36281,2.16054,0.43123,1.46664,0.27777},
393  {2265,0.75115,2.66903,0.38688,2.16649,0.44724,1.47703,0.28924},
394  {2270,0.76912,2.67037,0.41239,2.17083,0.46554,1.48652,0.30199},
395  {2275,0.78785,2.67088,0.43927,2.17366,0.48602,1.49514,0.31598},
396  {2280,0.80731,2.67059,0.46746,2.17504,0.50857,1.50293,0.33114},
397  {2285,0.82746,2.66956,0.49689,2.17504,0.5331,1.50993,0.34741},
398  {2290,0.84826,2.66782,0.5275,2.17375,0.55949,1.51618,0.36473},
399  {2295,0.86969,2.66541,0.55922,2.17122,0.58765,1.52173,0.38305},
400  {2300,0.89169,2.66236,0.59199,2.16753,0.61747,1.52662,0.40231},
401  {2305,0.91425,2.65872,0.62574,2.16276,0.64884,1.53089,0.42244},
402  {2310,0.93731,2.65453,0.6604,2.15697,0.68167,1.53458,0.44339},
403  {2315,0.96085,2.64983,0.69591,2.15025,0.71584,1.53773,0.46511},
404  {2320,0.98482,2.64466,0.7322,2.14266,0.75126,1.54038,0.48752},
405  {2325,1.00919,2.63905,0.76922,2.13427,0.78782,1.54258,0.51058},
406  {2330,1.03393,2.63304,0.80688,2.12516,0.82541,1.54437,0.53422},
407  {2335,1.05899,2.62669,0.84513,2.11541,0.86393,1.54578,0.55838},
408  {2340,1.08434,2.62001,0.88391,2.10507,0.90328,1.54686,0.58302},
409  {2345,1.10995,2.61307,0.92313,2.09423,0.94336,1.54766,0.60806},
410  {2350,1.13577,2.60588,0.96275,2.08296,0.98405,1.54821,0.63345},
411  {2355,1.16178,2.5985,1.0027,2.07133,1.02526,1.54855,0.65913},
412  {2360,1.18793,2.59097,1.0429,2.05941,1.06688,1.54873,0.68504},
413  {2365,1.21419,2.58332,1.0833,2.04728,1.10881,1.54878,0.71113},
414  {2370,1.24052,2.57559,1.12382,2.035,1.15094,1.54876,0.73733},
415  {2375,1.26688,2.56782,1.16441,2.02266,1.19317,1.54869,0.76358}};
416 
417  const G4int coef_ener = G4int((pLab-Legendre_coef[0][0])/5);
418  const G4double sup_ener = pLab/5. - coef_ener -Legendre_coef[0][0]/5;
419  //std::cout << "sup_ener\t" << sup_ener << std::endl;
420 
421 // assert(pLab >= Legendre_coef[coef_ener][0] && pLab < Legendre_coef[coef_ener+1][0]);
422 
423  // Legendre coefficient normalized
424  const G4double A0 = 1.;
425  const G4double A1 = (1-sup_ener)*Legendre_coef[coef_ener][1] + sup_ener*Legendre_coef[coef_ener+1][1];
426  const G4double A2 = (1-sup_ener)*Legendre_coef[coef_ener][2] + sup_ener*Legendre_coef[coef_ener+1][2];
427  const G4double A3 = (1-sup_ener)*Legendre_coef[coef_ener][3] + sup_ener*Legendre_coef[coef_ener+1][3];
428  const G4double A4 = (1-sup_ener)*Legendre_coef[coef_ener][4] + sup_ener*Legendre_coef[coef_ener+1][4];
429  const G4double A5 = (1-sup_ener)*Legendre_coef[coef_ener][5] + sup_ener*Legendre_coef[coef_ener+1][5];
430  const G4double A6 = (1-sup_ener)*Legendre_coef[coef_ener][6] + sup_ener*Legendre_coef[coef_ener+1][6];
431  const G4double A7 = (1-sup_ener)*Legendre_coef[coef_ener][7] + sup_ener*Legendre_coef[coef_ener+1][7];
432 
433  // Theoritical max if all Ai > 0 (often the case)
434  const G4double A = std::fabs(A0) + std::fabs(A1) + std::fabs(A2) + std::fabs(A3) + std::fabs(A4) + std::fabs(A5) + std::fabs(A6) + std::fabs(A7);
435 
436  G4bool success = false;
437  G4int maxloop = 0;
438 
439  while(!success && maxloop < 1000){
440 
441  cos_theta = Random::shoot()*2-1.; // not optimized
442 
443  // Legendre Polynomial
444  G4double P0 = A0;
445  G4double P1 = A1*cos_theta;
446  G4double P2 = A2/2.*(3*std::pow(cos_theta,2)-1);
447  G4double P3 = A3/2.*(5*std::pow(cos_theta,3)-3*cos_theta);
448  G4double P4 = A4/8.*(35*std::pow(cos_theta,4)-30*std::pow(cos_theta,2)+3);
449  G4double P5 = A5/8.*(63*std::pow(cos_theta,5)-70*std::pow(cos_theta,3)+15*cos_theta);
450  G4double P6 = A6/16.*(231*std::pow(cos_theta,6)-315*std::pow(cos_theta,4)+105*std::pow(cos_theta,2)-5);
451  G4double P7 = A7/16.*(429*std::pow(cos_theta,7)-693*std::pow(cos_theta,5)+315*std::pow(cos_theta,3)-35*cos_theta);
452 
453  G4double P = (P0 + P1 + P2 + P3 + P4 + P5 + P6 + P7);
454 
455  if(Random::shoot()*A < P) success = true;
456  maxloop +=1 ;
457  if(maxloop==1000) cos_theta = std::log(Random::shoot()*(std::exp(10.)-std::exp(-10.))+std::exp(-10.))/10.; // if no success in 1E4 shoot, probably angulard distribution piked very forward
458  }
459  sin_theta = std::sqrt(1-cos_theta*cos_theta);
460  }
461 
462  if(rho == 0) return ThreeVector(sin_theta*cos_phi,sin_theta*sin_phi,cos_theta);
463  // Rotation in the direction of the incident pi
464  const G4double px = x/r*cos_theta - y/rho*sin_theta*cos_phi + z/r*x/rho*sin_theta*sin_phi;
465  const G4double py = y/r*cos_theta + x/rho*sin_theta*cos_phi + z/r*y/rho*sin_theta*sin_phi;
466  const G4double pz = z/r*cos_theta - rho/r*sin_theta*sin_phi;
467 
468 
469  return ThreeVector(px,py,pz);
470  }
471 
472 }
x
Float_t x
Definition: compare.C:6
G4InuclParticleNames::pion
G4bool pion(G4int ityp)
Definition: G4InuclParticleNames.hh:91
G4INCL::FinalState::addModifiedParticle
void addModifiedParticle(Particle *p)
Definition: G4INCLFinalState.cc:60
G4INCL::Random::normVector
ThreeVector normVector(G4double norm=1.)
Definition: G4INCLRandom.cc:138
G4INCL::Particle::getMomentum
const G4INCL::ThreeVector & getMomentum() const
Definition: G4INCLParticle.hh:704
y
Float_t y
Definition: compare.C:6
z
Double_t z
Definition: advanced/microbeam/plot.C:277
G4InuclParticleNames::nucleon
G4bool nucleon(G4int ityp)
Definition: G4InuclParticleNames.hh:95
P2
static const G4double * P2[nN]
Definition: G4ElectroNuclearCrossSection.cc:2177
P0
static const G4double * P0[nN]
Definition: G4ElectroNuclearCrossSection.cc:2175
G4INCL::NpiToLKChannel::KaonMomentum
ThreeVector KaonMomentum(Particle const *const pion, Particle const *const nucleon)
Definition: G4INCLNpiToLKChannel.cc:100
G4INCL::ThreeVector::getZ
G4double getZ() const
Definition: G4INCLThreeVector.hh:66
G4INCL::KinematicsUtils::momentumInCM
G4double momentumInCM(Particle const *const p1, Particle const *const p2)
gives the momentum in the CM frame of two particles.
Definition: G4INCLKinematicsUtils.cc:107
G4double
double G4double
Definition: G4Types.hh:76
G4bool
bool G4bool
Definition: G4Types.hh:79
G4INCL::Random::shoot
G4double shoot()
Definition: G4INCLRandom.cc:93
INCL_ERROR
#define INCL_ERROR(x)
Definition: G4INCLLogger.hh:225
A
double A(double temperature)
Definition: G4DNAElectronHoleRecombination.cc:60
G4INCL::ThreeVector::getX
G4double getX() const
Definition: G4INCLThreeVector.hh:64
G4INCL::Particle::setType
void setType(ParticleType t)
Definition: G4INCLParticle.hh:180
G4INCL::Math::twoPi
const G4double twoPi
Definition: G4INCLGlobals.hh:69
P
static double P[]
Definition: nf_gammaFunctions.cc:89
G4INCL::Particle::setMomentum
virtual void setMomentum(const G4INCL::ThreeVector &momentum)
Definition: G4INCLParticle.hh:718
G4INCL::NpiToLKChannel::fillFinalState
void fillFinalState(FinalState *fs)
Definition: G4INCLNpiToLKChannel.cc:55
G4int
int G4int
Definition: G4Types.hh:78
norm
Float_t norm
Definition: comparison_ascii.C:71
G4INCL::ParticleTable::getIsospin
G4int getIsospin(const ParticleType t)
Get the isospin of a particle.
Definition: G4INCLParticleTable.cc:471
G4INCL::Particle::getType
G4INCL::ParticleType getType() const
Definition: G4INCLParticle.hh:171
P1
static const G4double * P1[nN]
Definition: G4ElectroNuclearCrossSection.cc:2176
G4INCL::Particle::adjustEnergyFromMomentum
G4double adjustEnergyFromMomentum()
Recompute the energy to match the momentum.
Definition: G4INCLParticle.cc:152
G4INCL::KinematicsUtils::momentumInLab
G4double momentumInLab(Particle const *const p1, Particle const *const p2)
gives the momentum in the lab frame of two particles.
Definition: G4INCLKinematicsUtils.cc:135
G4INCL::NpiToLKChannel::NpiToLKChannel
NpiToLKChannel(Particle *, Particle *)
Definition: G4INCLNpiToLKChannel.cc:49
G4INCL::Particle::isNucleon
G4bool isNucleon() const
Definition: G4INCLParticle.hh:296
G4INCL::ThreeVector::getY
G4double getY() const
Definition: G4INCLThreeVector.hh:65
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