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G4INCL::NpiToLKChannel Class Reference
#include <G4INCLNpiToLKChannel.hh>
Inheritance diagram for G4INCL::NpiToLKChannel:
Public Member Functions | |
| NpiToLKChannel (Particle *, Particle *) | |
| virtual | ~NpiToLKChannel () |
| void | fillFinalState (FinalState *fs) |
| ThreeVector | KaonMomentum (Particle const *const pion, Particle const *const nucleon) |
| Public Member Functions inherited from G4INCL::IChannel | |
| IChannel () | |
| virtual | ~IChannel () |
| FinalState * | getFinalState () |
| virtual void | fillFinalState (FinalState *fs)=0 |
Detailed Description
Definition at line 47 of file G4INCLNpiToLKChannel.hh.
Constructor & Destructor Documentation
◆ NpiToLKChannel()
Definition at line 49 of file G4INCLNpiToLKChannel.cc.
50 : particle1(p1), particle2(p2)
51 {}
◆ ~NpiToLKChannel()
|
virtual |
Definition at line 53 of file G4INCLNpiToLKChannel.cc.
53{}
Member Function Documentation
◆ fillFinalState()
|
virtual |
Implements G4INCL::IChannel.
Definition at line 55 of file G4INCLNpiToLKChannel.cc.
55 {
56
57 Particle *nucleon;
58 Particle *pion;
59
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
75 else{
77 return;
78 }
79
80 ThreeVector mom_kaon = KaonMomentum(pion,nucleon);
81
83 pion->setType(KaonType);
84
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 }
ThreeVector KaonMomentum(Particle const *const pion, Particle const *const nucleon)
Definition: G4INCLNpiToLKChannel.cc:100
G4double momentumInCM(Particle const *const p1, Particle const *const p2)
gives the momentum in the CM frame of two particles.
Definition: G4INCLKinematicsUtils.cc:107
G4int getIsospin(const ParticleType t)
Get the isospin of a particle.
Definition: G4INCLParticleTable.cc:478
◆ KaonMomentum()
| ThreeVector G4INCL::NpiToLKChannel::KaonMomentum | ( | Particle const *const | pion, |
| Particle const *const | nucleon | ||
| ) |
Definition at line 100 of file G4INCLNpiToLKChannel.cc.
100 {
101
103
105
106 G4double cos_theta = 1.;
107 G4double sin_theta = 0.;
110
114
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{
126 {930,0.18739,-0.06,-0.00621,-2e-05,0,0,0},
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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},
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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},
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167 {1135,1.02779,0.34528,0.09967,2e-04,0,0,0},
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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},
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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},
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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},
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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},
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216 {1380,0.93614,0.50128,-0.36387,0.04506,-0.00011,0.00012,-5e-05},
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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},
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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},
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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
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
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
437 G4int maxloop = 0;
438
439 while(!success && maxloop < 1000){
440
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
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
467
468
469 return ThreeVector(px,py,pz);
470 }
G4double momentumInLab(Particle const *const p1, Particle const *const p2)
gives the momentum in the lab frame of two particles.
Definition: G4INCLKinematicsUtils.cc:135
Referenced by fillFinalState().
The documentation for this class was generated from the following files:
