/////////////////////////////////////////////////////////////////////////////
+#include <Riostream.h>
#include "TMath.h"
#include "TRandom.h"
#include "TString.h"
ClassImp(AliGenEMlib)
+//Initializers for static members
+Int_t AliGenEMlib::fgSelectedCollisionsSystem=AliGenEMlib::kpp7TeV;
+Int_t AliGenEMlib::fgSelectedPtParamPi0=AliGenEMlib::kPizeroParam;
+Int_t AliGenEMlib::fgSelectedPtParamEta=AliGenEMlib::kEtaParamRatiopp;
+Int_t AliGenEMlib::fgSelectedPtParamOmega=AliGenEMlib::kOmegaParampp;
+Int_t AliGenEMlib::fgSelectedPtParamPhi=AliGenEMlib::kPhiParampp;
+Int_t AliGenEMlib::fgSelectedCentrality=AliGenEMlib::kpp;
+Int_t AliGenEMlib::fgSelectedV2Systematic=AliGenEMlib::kNoV2Sys;
+
+Double_t AliGenEMlib::CrossOverLc(double a, double b, double x){
+ if(x<b-a/2) return 1.0;
+ else if(x>b+a/2) return 0.0;
+ else return cos(((x-b)/a+0.5)*TMath::Pi())/2+0.5;
+}
+Double_t AliGenEMlib::CrossOverRc(double a, double b, double x){
+ return 1-CrossOverLc(a,b,x);
+}
+
+const Double_t AliGenEMlib::fgkV2param[kCentralities][16] = {
+ // charged pion cent, based on: https://twiki.cern.ch/twiki/bin/viewauth/ALICE/FlowPAGQM2012talkIdentified
+ { 0.0000000000, 0.0000000000, 0.0000000000,-1.0000000000, 1.0000000000, 0.0000000000, 0.0000000000, 0.0000000000, 2.0000000000, 0.0000000000, 1.0000000000, 0, 1, 0.0000000000, 1.0000000000, 10 } // pp no V2
+ ,{ 6.554571e-02, 1.436915e+00, 4.610598e-02, 2.554090e+00, 1.300948e+00, 2.970850e-02, 4.767877e+00, 4.228885e+00, 6.025959e-02, 1.570851e-03, 1.108941e+00, 0, 1, 1.715434e-03, 4.088070e-01, 25 } // 0-5
+ ,{ 1.171348e-01, 1.333067e+00, 4.537086e-02, 3.046348e+00, 3.903416e+00, 4.407152e-02, 9.123846e-01, 4.834531e+00, 1.186227e-01, 2.259463e-03, 8.916458e-01, 0, 1, 2.300647e-03, 4.531172e-01, 25 } // 5-10
+ ,{ 1.748434e-01, 1.285199e+00, 4.219881e-02, 4.018858e+00, 4.255082e+00, 7.955896e-03, 1.183264e-01,-9.329627e+00, 5.826570e-01, 3.368057e-03, 5.437668e-01, 0, 1, 3.178663e-03, 3.617552e-01, 25 } // 10-20
+ ,{ 2.149526e-01, 1.408792e+00, 5.062101e-02, 3.206279e+00, 3.988517e+00, 3.724655e-02, 1.995791e-01,-1.571536e+01, 6.494227e+00, 4.957874e-03, 4.903140e-01, 0, 1, 4.214626e-03, 3.457922e-01, 25 } // 20-30
+ ,{ 2.408942e-01, 1.477541e+00, 5.768983e-02, 3.333347e+00, 3.648508e+00,-2.044309e-02, 1.004145e-01,-2.386625e+01, 3.301913e+00, 5.666750e-03, 5.118686e-01, 0, 1, 4.626802e-03, 3.188974e-01, 25 } // 30-40
+ ,{ 2.495109e-01, 1.543680e+00, 6.217835e-02, 3.518863e+00, 4.557145e+00, 6.014553e-02, 1.491814e-01,-5.443647e+00, 5.403300e-01, 6.217285e-03, 5.580218e-01, 0, 1, 4.620486e-03, 3.792879e-01, 25 } // 40-50
+ ,{ 2.166399e-01, 1.931033e+00, 8.195390e-02, 2.226640e+00, 3.106649e+00, 1.058755e-01, 8.557791e-01, 4.006501e+00, 2.476449e-01, 6.720714e-03, 6.342966e-01, 0, 1, 4.449839e-03, 4.968750e-01, 25 } // 50-60
+ ,{ 0.0000000000, 0.0000000000, 0.0000000000,-1.0000000000, 1.0000000000, 0.0000000000, 0.0000000000, 0.0000000000, 2.0000000000, 0.0000000000, 1.0000000000, 0, 1, 0.0000000000, 1.0000000000, 10 } // 0-10
+ ,{ 0.0000000000, 0.0000000000, 0.0000000000,-1.0000000000, 1.0000000000, 0.0000000000, 0.0000000000, 0.0000000000, 2.0000000000, 0.0000000000, 1.0000000000, 0, 1, 0.0000000000, 1.0000000000, 10 } // 20-40
+ ,{ 0.0000000000, 0.0000000000, 0.0000000000,-1.0000000000, 1.0000000000, 0.0000000000, 0.0000000000, 0.0000000000, 2.0000000000, 0.0000000000, 1.0000000000, 0, 1, 0.0000000000, 1.0000000000, 10 } // 40-60
+ ,{ 0.0000000000, 0.0000000000, 0.0000000000,-1.0000000000, 1.0000000000, 0.0000000000, 0.0000000000, 0.0000000000, 2.0000000000, 0.0000000000, 1.0000000000, 0, 1, 0.0000000000, 1.0000000000, 10 } // 60-80
+ ,{ 0.0000000000, 0.0000000000, 0.0000000000,-1.0000000000, 1.0000000000, 0.0000000000, 0.0000000000, 0.0000000000, 2.0000000000, 0.0000000000, 1.0000000000, 0, 1, 0.0000000000, 1.0000000000, 10 } // 0-20
+ ,{ 0.0000000000, 0.0000000000, 0.0000000000,-1.0000000000, 1.0000000000, 0.0000000000, 0.0000000000, 0.0000000000, 2.0000000000, 0.0000000000, 1.0000000000, 0, 1, 0.0000000000, 1.0000000000, 10 } // 0-40
+ ,{ 0.0000000000, 0.0000000000, 0.0000000000,-1.0000000000, 1.0000000000, 0.0000000000, 0.0000000000, 0.0000000000, 2.0000000000, 0.0000000000, 1.0000000000, 0, 1, 0.0000000000, 1.0000000000, 10 } // 20-80
+ ,{ 0.0000000000, 0.0000000000, 0.0000000000,-1.0000000000, 1.0000000000, 0.0000000000, 0.0000000000, 0.0000000000, 2.0000000000, 0.0000000000, 1.0000000000, 0, 1, 0.0000000000, 1.0000000000, 10 } // 40-80
+};
+
+const Double_t AliGenEMlib::fgkRawPtOfV2Param[kCentralities][10] = {
+ { 0.0000000000, 0.0000000000, 0.0000000000, 0.0000000000,-1.0000000000, 1.0000000000,-1.0000000000, 1.0000000000, 0.0000000000, 0.0000000000 } // pp no V2
+ ,{ 2.181446e+08, 9.412925e-01, 1.158774e-01, 3.020303e+01, 6.790828e+00, 9.999996e+01, 2.616827e+00, 3.980492e+00, 1.225169e+07, 5.575243e+00 } // 0-5
+ ,{ 3.006215e+08, 9.511881e-01, 1.192788e-01, 2.981931e+01, 5.068175e+01, 9.999993e+01, 2.650635e+00, 4.073982e+00, 2.508045e+07, 5.621039e+00 } // 5-10
+ ,{ 1.643438e+09, 9.604242e-01, 1.218512e-01, 2.912684e+01, 1.164242e+00, 9.999709e+01, 2.662326e+00, 4.027795e+00, 7.020810e+07, 5.696860e+00 } // 10-20
+ ,{ 8.109985e+08, 9.421935e-01, 1.328020e-01, 2.655910e+01, 1.053677e+00, 9.999812e+01, 2.722949e+00, 3.964547e+00, 6.104096e+07, 5.694703e+00 } // 20-30
+ ,{ 5.219789e+08, 9.417339e-01, 1.417541e-01, 2.518080e+01, 7.430803e-02, 9.303295e+01, 2.780227e+00, 3.909570e+00, 4.723116e+07, 5.778375e+00 } // 30-40
+ ,{ 2.547159e+08, 9.481459e-01, 2.364858e-01, 1.689288e+01, 3.858883e+00, 6.352619e+00, 2.742270e+00, 3.855226e+00, 3.120535e+07, 5.878677e+00 } // 40-50
+ ,{ 9.396097e+07, 9.304491e-01, 3.244940e-01, 1.291696e+01, 2.854367e+00, 6.325908e+00, 2.828258e+00, 4.133699e+00, 1.302739e+07, 5.977896e+00 } // 50-60
+ ,{ 0.0000000000, 0.0000000000, 0.0000000000, 0.0000000000,-1.0000000000, 1.0000000000,-1.0000000000, 1.0000000000, 0.0000000000, 0.0000000000 } // 0-10
+ ,{ 0.0000000000, 0.0000000000, 0.0000000000, 0.0000000000,-1.0000000000, 1.0000000000,-1.0000000000, 1.0000000000, 0.0000000000, 0.0000000000 } // 20-40
+ ,{ 0.0000000000, 0.0000000000, 0.0000000000, 0.0000000000,-1.0000000000, 1.0000000000,-1.0000000000, 1.0000000000, 0.0000000000, 0.0000000000 } // 40-60
+ ,{ 0.0000000000, 0.0000000000, 0.0000000000, 0.0000000000,-1.0000000000, 1.0000000000,-1.0000000000, 1.0000000000, 0.0000000000, 0.0000000000 } // 60-80
+ ,{ 0.0000000000, 0.0000000000, 0.0000000000, 0.0000000000,-1.0000000000, 1.0000000000,-1.0000000000, 1.0000000000, 0.0000000000, 0.0000000000 } // 0-20
+ ,{ 0.0000000000, 0.0000000000, 0.0000000000, 0.0000000000,-1.0000000000, 1.0000000000,-1.0000000000, 1.0000000000, 0.0000000000, 0.0000000000 } // 0-40
+ ,{ 0.0000000000, 0.0000000000, 0.0000000000, 0.0000000000,-1.0000000000, 1.0000000000,-1.0000000000, 1.0000000000, 0.0000000000, 0.0000000000 } // 20-80
+ ,{ 0.0000000000, 0.0000000000, 0.0000000000, 0.0000000000,-1.0000000000, 1.0000000000,-1.0000000000, 1.0000000000, 0.0000000000, 0.0000000000 } // 40-80
+};
+
+const Double_t AliGenEMlib::fgkPtParam[kCentralities][10] = {
+ { 0.0000000000, 0.0000000000, 0.0000000000, 0.0000000000,-1.0000000000, 1.0000000000,-1.0000000000, 1.0000000000, 0.0000000000, 0.0000000000 } // pp no V2
+ ,{ 7.641493e+01, 7.203468e-01, 3.651383e-01, 1.047542e+01, 3.494331e+00, 5.129019e+00, 3.081716e+00, 5.154525e+00, 3.065719e+01, 5.823718e+00 } // 0-5
+ ,{ 1.704676e+02, 7.852682e-01, 4.177172e-01, 1.014652e+01, 3.324409e+00, 4.825894e+00, 2.889738e+00, 4.772249e+00, 3.502627e+01, 5.938773e+00 } // 5-10
+ ,{ 1.823377e+02, 8.144309e-01, 4.291562e-01, 1.022767e+01, 3.585469e+00, 5.275078e+00, 3.144351e+00, 5.259097e+00, 2.675708e+01, 5.892506e+00 } // 10-20
+ ,{ 4.851407e+02, 9.341151e-01, 4.716673e-01, 1.058090e+01, 4.681218e+00, 7.261284e+00, 3.883227e+00, 6.638627e+00, 1.562806e+01, 5.772127e+00 } // 20-30
+ ,{ 3.157060e+01, 6.849451e-01, 4.868669e-01, 8.394558e+00, 3.539142e+00, 5.495280e+00, 4.102638e+00, 3.722991e+00, 1.638622e+01, 5.935963e+00 } // 30-40
+ ,{ 1.069397e+01, 5.816587e-01, 6.542961e-01, 6.472858e+00, 2.643870e+00, 3.929020e+00, 3.339224e+00, 2.410371e+00, 9.606748e+00, 6.116685e+00 } // 40-50
+ ,{ 1.857919e+01, 6.185989e-01, 5.878869e-01, 7.035064e+00, 2.892415e+00, 4.339383e+00, 3.549679e+00, 2.821061e+00, 1.529318e+01, 6.091388e+00} // 50-60
+ ,{ 0.0000000000, 0.0000000000, 0.0000000000, 0.0000000000,-1.0000000000, 1.0000000000,-1.0000000000, 1.0000000000, 0.0000000000, 0.0000000000 } // 0-10
+ ,{ 1.271594e+02, 7.790165e-01, 5.793214e-01, 8.050008e+00, 3.211312e+00, 4.825258e+00, 3.840509e+00, 3.046231e+00, 2.172177e+01, 5.983496e+00 } // 20-40
+ ,{ 0.0000000000, 0.0000000000, 0.0000000000, 0.0000000000,-1.0000000000, 1.0000000000,-1.0000000000, 1.0000000000, 0.0000000000, 0.0000000000 } // 40-60
+ ,{ 0.0000000000, 0.0000000000, 0.0000000000, 0.0000000000,-1.0000000000, 1.0000000000,-1.0000000000, 1.0000000000, 0.0000000000, 0.0000000000 } // 60-80
+ ,{ 0.0000000000, 0.0000000000, 0.0000000000, 0.0000000000,-1.0000000000, 1.0000000000,-1.0000000000, 1.0000000000, 0.0000000000, 0.0000000000 } // 0-20
+ ,{ 0.0000000000, 0.0000000000, 0.0000000000, 0.0000000000,-1.0000000000, 1.0000000000,-1.0000000000, 1.0000000000, 0.0000000000, 0.0000000000 } // 0-40
+ ,{ 0.0000000000, 0.0000000000, 0.0000000000, 0.0000000000,-1.0000000000, 1.0000000000,-1.0000000000, 1.0000000000, 0.0000000000, 0.0000000000 } // 20-80
+ ,{ 0.0000000000, 0.0000000000, 0.0000000000, 0.0000000000,-1.0000000000, 1.0000000000,-1.0000000000, 1.0000000000, 0.0000000000, 0.0000000000 } // 40-80
+};
+
+const Double_t AliGenEMlib::fgkThermPtParam[kCentralities][2] = {
+ { 0.0000000000, 0.0000000000 } // pp no V2
+ ,{ 0.0000000000, 0.0000000000 } // 0-5
+ ,{ 0.0000000000, 0.0000000000 } // 5-10
+ ,{ 3.335661e+01, 3.400585e+00 } // 10-20 //based on: https://aliceinfo.cern.ch/Notes/node/249
+ ,{ 0.0000000000, 0.0000000000 } // 20-30
+ ,{ 0.0000000000, 0.0000000000 } // 30-40
+ ,{ 0.0000000000, 0.0000000000 } // 40-50
+ ,{ 0.0000000000, 0.0000000000 } // 50-60
+ ,{ 3.648327e+02, 4.477749e+00 } // 0-10 //based on: https://aliceinfo.cern.ch/Notes/node/249
+ ,{ 1.696223e+00, 2.429660e+00 } // 20-40 //based on: https://twiki.cern.ch/twiki/pub/ALICE/ALICEDirectPhotonSpectrumPaper/directPbPb.pdf
+ ,{ 0.0000000000, 0.0000000000 } // 40-60
+ ,{ 0.0000000000, 0.0000000000 } // 60-80
+ ,{ 1.492160e+01, 2.805213e+00 } // 0-20 //based on: https://twiki.cern.ch/twiki/pub/ALICE/ALICEDirectPhotonSpectrumPaper/directPbPb.pdf
+ ,{ 4.215110e+01, 3.242719e+00 } // 0-40 //based on: https://aliceinfo.cern.ch/Figure/node/2866
+ ,{ 0.0000000000, 0.0000000000 } // 20-80
+ ,{ 0.0000000000, 0.0000000000 } // 40-80
+};
+
+const Double_t AliGenEMlib::fgkModTsallisParamPi0PbPb[kCentralities][7] = {
+ {0., 0., 0., 0., 0., 0., 0. }, // pp
+ {0., 0., 0., 0., 0., 0., 0. }, // 0-5
+ {0., 0., 0., 0., 0., 0., 0. }, // 5-10
+ {2.09114, 2.7482, 6.911, 51.1383, -10.6896, 1.30818, -1.59137 }, // 10-20
+ {0., 0., 0., 0., 0., 0., 0. }, // 20-30
+ {0., 0., 0., 0., 0., 0., 0. }, // 30-40
+ {0., 0., 0., 0., 0., 0., 0. }, // 40-50
+ {0., 0., 0., 0., 0., 0., 0. }, // 50-60
+ {970.684, 0.46451, 5.52064, 21.7707, -4.2495, 4.62292, -3.47699 }, // 00-10
+ {3.22534, 2.83717, 7.50505, 38.8015, -8.93242, 0.9842, -0.821508 }, // 20-40
+ {0., 0., 0., 0., 0., 0., 0. }, // 40-60
+ {0., 0., 0., 0., 0., 0., 0. }, // 60-80
+ {44.3972, 1.0644, 5.92254, 40.9254, -8.07759, 3.30333, -2.25078 }, // 00-20
+ {38.187, 1.58985, 6.81705, 31.2526, -8.35251, 3.39482, -1.56172 }, // 00-40
+ {0., 0., 0., 0., 0., 0., 0. }, // 20-80
+ {89.2412, 0.150509, 4.97424, 112.986, 643.257, 3.41969, -2.46034 }, // 40-80
+};
+
+const Double_t AliGenEMlib::fgkModTsallisParamPiChargedPbPb[kCentralities][7] = {
+ {0., 0., 0., 0., 0., 0., 0. }, // pp
+ {0., 0., 0., 0., 0., 0., 0. }, // 0-5
+ {0., 0., 0., 0., 0., 0., 0. }, // 5-10
+ {117.693, 1.20567, 6.57362, 29.2275, -7.71065, 4.50046, -1.91093 }, // 10-20
+ {0., 0., 0., 0., 0., 0., 0. }, // 20-30
+ {0., 0., 0., 0., 0., 0., 0. }, // 30-40
+ {0., 0., 0., 0., 0., 0., 0. }, // 40-50
+ {0., 0., 0., 0., 0., 0., 0. }, // 50-60
+ {229.035, 1.11283, 6.53404, 28.9739, -8.15381, 5.05703, -2.32825 }, // 00-10
+ {45.5686, 1.39268, 6.72519, 29.4513, -7.23335, 3.80987, -1.18599 }, // 20-40
+ {0., 0., 0., 0., 0., 0., 0. }, // 40-60
+ {0., 0., 0., 0., 0., 0., 0. }, // 60-80
+ {171.812, 1.14849, 6.54742, 29.0473, -7.96679, 4.82915, -2.15967 }, // 00-20
+ {108.083, 1.21125, 6.59362, 28.9651, -7.70072, 4.56583, -1.89318 }, // 00-40
+ {0., 0., 0., 0., 0., 0., 0. }, // 20-80
+ {3.14057, 0.329224, 4.8235, 491.145, 186.041, 2.91138, -2.20281 }, // 40-80
+};
+
+const Double_t AliGenEMlib::fgkParamSetPi07TeV[kNPi0Param][7] = {
+ {0.134977, 2.31335/(2*TMath::Pi()), 0.1433, 7.003, 0, 0, 0 }, //kPizeroParam
+ {-0.0580977, 0.580804, 5.0964, -669.913, -160.2, 4.45906, -0.465125 }, //kPizeroParamlow
+ {-7.09454, 0.218554, 5.2278, 77.9877, -359.457, 4.67862, -0.996938 }, //kPizeroParamhigh
+ {0., 0., 0., 0., 0., 0., 0. }, //kPichargedParam
+ {0., 0., 0., 0., 0., 0., 0. }, //kPichargedParamlow
+ {-0.000632204, 0.371249, 4.56778, -111488, -15573.4, 4.33064, -1.5506 }, //kPichargedParamhigh
+ {0., 0., 0., 0., 0., 0., 0. }, //kPizeroParamAlter
+ {0., 0., 0., 0., 0., 0., 0. }, //kPizeroParamAlterlow
+ {0., 0., 0., 0., 0., 0., 0. }, //kPizeroParamAlterhigh
+};
+
+const Double_t AliGenEMlib::fgkParamSetPi02760GeV[kNPi0Param][7] = {
+ {0.134977, 1.7/(2*TMath::Pi()), 0.135, 7.1, 0, 0, 0 }, //kPizeroParam
+ {-1.4583, 0.188108, 5.34499, 546.328, -2142.93, 4.55572, -1.82455 }, //kPizeroParamlow
+ {-0.0648943, 0.231029, 4.39238, -3705.4, -35.9761, 4.87127, -2.00983 }, //kPizeroParamhigh
+ {0.755554, 0.20772, 5.24167, 11.8279, 1492.53, 3.93863, -1.72404 }, //kPichargedParam
+ {0., 0., 0., 0., 0., 0., 0. }, //kPichargedParamlow
+ {0., 0., 0., 0., 0., 0., 0. }, //kPichargedParamhigh
+ {0.0610774, 5.86289, -7.83516, 1.29301, 2.62416, 0., 0. }, //kPizeroParamAlter
+ {0.065338, 5.86705, -9.05494, 1.38435, 3.58848, 0., 0. }, //kPizeroParamAlterlow
+ {0., 0., 0., 0., 0., 0., 0. }, //kPizeroParamAlterhigh
+};
+
+const Double_t AliGenEMlib::fgkParamSetPi0900GeV[kNPi0Param][7] = {
+ {0.134977, 1.5/(2*TMath::Pi()), 0.132, 7.8, 0, 0, 0 }, //kPizeroParam
+ {0., 0., 0., 0., 0., 0., 0. }, //kPizeroParamlow
+ {0., 0., 0., 0., 0., 0., 0. }, //kPizeroParamhigh
+ {0., 0., 0., 0., 0., 0., 0. }, //kPichargedParam
+ {0., 0., 0., 0., 0., 0., 0. }, //kPichargedParamlow
+ {0., 0., 0., 0., 0., 0., 0. }, //kPichargedParamhigh
+ {0.0467285, 59.6495, -212.865, 0.0584012, 2.83816, 0., 0. }, //kPizeroParamAlter
+ {0.0468173, 66.9511, -136.287, 0.0298099, 1.17147, 0., 0. }, //kPizeroParamAlterlow
+ {0., 0., 0., 0., 0., 0., 0. }, //kPizeroParamAlterhigh
+};
+
+
+// MASS 0=>PIZERO, 1=>ETA, 2=>RHO0, 3=>OMEGA, 4=>ETAPRIME, 5=>PHI, 6=>JPSI, 7=>SIGMA, 8=>K0s, 9=>DELTA++, 10=>DELTA+, 11=>DELTA-, 12=>DELTA0, 13=>Rho+, 14=>Rho-, 15=>K0*
+const Double_t AliGenEMlib::fgkHM[16] = {0.1349766, 0.547853, 0.77549, 0.78265, 0.95778, 1.019455, 3.096916, 1.192642, 0.497614, 1.2311, 1.2349, 1.2349, 1.23340, 0.77549, 0.77549, 0.896};
+
+const Double_t AliGenEMlib::fgkMtFactor[3][16] = {
+ // {1.0, 0.5, 1.0, 0.9, 0.4, 0.23, 0.054}, // factor for pp from arXiv:1110.3929
+ // {1.0, 0.55, 1.0, 0.9, 0.4, 0.25, 0.004} // factor for PbPb from arXiv:1110.3929
+ //{1., 0.48, 1.0, 0.9, 0.25, 0.4}, (old values)
+ //{1., 0.48, 1.0, 0.9, 0.4, 0.25}, (nlo values)
+ //{1., 0.48, 1.0, 0.8, 0.4, 0.2, 0.06} (combination of nlo and LHC measurements)
+ //https://aliceinfo.cern.ch/Figure/node/2634
+ //https://aliceinfo.cern.ch/Figure/node/2788
+ //https://aliceinfo.cern.ch/Figure/node/4403
+ //https://aliceinfo.cern.ch/Notes/node/87
+ /*best guess:
+ - pp values for eta/pi0 [arXiv:1205.5724], omega/pi0 [arXiv:1210.5749], phi/(pi+/-) [arXiv:1208.5717] from measured 7 Tev data
+ */
+ {1., 0.476, 1.0, 0.85, 0.4, 0.13, 1., 0.49, 0.575, 1, 1, 1, 1, 1.0, 1.0, 1.0}, //pp
+ {1., 0.476, 1.0, 0.85, 0.4, 0.25, 1., 0.49, 0.575, 1, 1, 1, 1, 1.0, 1.0, 1.0}, //pPb
+ {1., 0.476, 1.0, 0.85, 0.4, 0.25, 1., 0.49, 0.575, 1, 1, 1, 1, 1.0, 1.0, 1.0} //PbPb
+};
+
//==========================================================================
//
// Definition of Particle Distributions
//
//==========================================================================
+//--------------------------------------------------------------------------
+//
+// General functions
+//
+//--------------------------------------------------------------------------
+Double_t AliGenEMlib::PtModifiedHagedornThermal(Double_t pt,
+ Double_t c,
+ Double_t p0,
+ Double_t p1,
+ Double_t n,
+ Double_t cT,
+ Double_t T)
+{
+ // Modified Hagedorn Thermal fit to Picharged for PbPb:
+ Double_t invYield;
+ invYield = c/TMath::Power(p0+pt/p1,n) + cT*exp(-1.0*pt/T);
+
+ return invYield*(2*TMath::Pi()*pt);
+}
+
+
+
+Double_t AliGenEMlib::PtModifiedHagedornExp(Double_t pt,
+ Double_t c,
+ Double_t p1,
+ Double_t p2,
+ Double_t p0,
+ Double_t n)
+{
+ // Modified Hagedorn exponentiel fit to Pizero for PbPb:
+ Double_t invYield;
+ invYield = c*TMath::Power(exp(-1*(p1*pt-p2*pt*pt))+pt/p0,-n);
+
+ return invYield*(2*TMath::Pi()*pt);
+}
+
+
+Double_t AliGenEMlib::PtModifiedHagedornExp2(Double_t pt,
+ Double_t c,
+ Double_t a,
+ Double_t b,
+ Double_t p0,
+ Double_t p1,
+ Double_t d,
+ Double_t n)
+{
+ // Modified Hagedorn exponential fit to charged pions for pPb:
+ Double_t invYield;
+ invYield = c*TMath::Power(exp(-a*pt-b*pt*pt)+pt/p0+TMath::Power(pt/p1,d),-n);
+
+ return invYield*(2*TMath::Pi()*pt);
+}
+
+Double_t AliGenEMlib::PtTsallis(Double_t pt,
+ Double_t m,
+ Double_t c,
+ Double_t T,
+ Double_t n)
+{
+ // Tsallis fit to Pizero for pp:
+ Double_t mt;
+ Double_t invYield;
+
+ mt = sqrt(m*m + pt*pt);
+ invYield = c*((n-1.)*(n-2.))/(n*T*(n*T+m*(n-2.)))*pow(1.+(mt-m)/(n*T),-n);
+
+ return invYield*(2*TMath::Pi()*pt);
+}
+
+
+Double_t AliGenEMlib::PtXQCD( Double_t pt,
+ Double_t a,
+ Double_t b,
+ Double_t c,
+ Double_t d,
+ Double_t e,
+ Double_t f)
+{
+ // QCD inspired function by Martin Wilde
+ // DISCLAIMER: Please be careful outside of the measured pT range
+ Double_t invYield = 0;
+ if(pt>0.05){
+ invYield = a*pow(pt,-1*(b+c/(pow(pt,d)+e*pow(pt,f))));
+ } else invYield = 100;
+ return invYield*(2*TMath::Pi()*pt);
+}
+
+Double_t AliGenEMlib::PtQCD( Double_t pt,
+ Double_t a,
+ Double_t b,
+ Double_t c,
+ Double_t d,
+ Double_t e)
+{
+ // QCD inspired function by Martin Wilde
+ // DISCLAIMER: Please be careful outside of the measured pT range
+ Double_t invYield = 0;
+ if(pt>0.05){
+ invYield = a*pow(pt,-1*(b+c/(pow(pt,d)+e)));
+ } else invYield = 100;
+ return invYield*(2*TMath::Pi()*pt);
+}
+
+Double_t AliGenEMlib::PtModTsallis( Double_t pt,
+ Double_t a,
+ Double_t b,
+ Double_t c,
+ Double_t d,
+ Double_t e,
+ Double_t f,
+ Double_t g,
+ Double_t mass)
+{
+
+ Double_t invYield = 0;
+ Double_t mt = sqrt(mass*mass + pt*pt);
+ Double_t pt2 = pt*pt;
+ if(pt>0.05){
+ invYield = a*TMath::Power((1.+(mt-mass)/(b)),-c)*(d+e*pt+pt2)/(f+g*pt+pt2);
+ } else invYield = 100;
+ return invYield*(2*TMath::Pi()*pt);
+}
+
+Double_t AliGenEMlib::PtParticleRatiopp(Double_t pt,
+ Double_t m1,
+ Double_t m2,
+ Double_t c1,
+ Double_t c2,
+ Double_t T1,
+ Double_t T2,
+ Double_t n)
+{
+
+ Double_t ratio = 0;
+ if (PtTsallis (pt, m2, c2, T2, n)>0) ratio = PtTsallis (pt, m1, c1, T1, n)/ PtTsallis (pt, m2, c2, T2, n);
+ return ratio;
+}
+
+
+// Exponential
+Double_t AliGenEMlib::PtExponential(const Double_t *px, const Double_t *c){
+ const double &pt=px[0];
+ Double_t invYield = c[0]*exp(-pt*c[1]);
+
+ return invYield*(2*TMath::Pi()*pt);
+}
+
+// Hagedorn with additional Powerlaw
+Double_t AliGenEMlib::PtModifiedHagedornPowerlaw(const Double_t *px, const Double_t *c){
+ const double &pt=px[0];
+ Double_t invYield = c[0]*pow(c[1]+pt*c[2],-c[3])*CrossOverLc(c[5],c[4],pt)+CrossOverRc(c[7],c[6],pt)*c[8]*pow(pt+0.001,-c[9]); //pt+0.001: prevent powerlaw from exploding for pt->0
+
+ return invYield*(2*TMath::Pi()*pt+0.001); //pt+0.001: be sure to be > 0
+}
+
+// double powerlaw for J/Psi yield
+Double_t AliGenEMlib::PtDoublePowerlaw(const Double_t *px, const Double_t *c){
+ const double &pt=px[0];
+ Double_t yield = c[0]*pt*pow(1+pow(pt*c[1],2),-c[2]);
+
+ return yield;
+}
+
+// integral over krollwada with S=1^2*(1-mee^2/mh^2)^3 from mee=0 up to mee=mh
+// approximation is perfect for mh>20MeV
+Double_t AliGenEMlib::IntegratedKrollWada(const Double_t *mh, const Double_t *){
+ if(*mh<0.002941) return 0;
+ return 2*log(*mh/0.000511/exp(1.75))/411.11/TMath::Pi();
+}
+
+//--------------------------------------------------------------------------
+//
+// DirectRealGamma
+//
+//--------------------------------------------------------------------------
+Double_t AliGenEMlib::PtPromptRealGamma( const Double_t *px, const Double_t */*dummy*/ )
+{
+ const static Double_t promptGammaPtParam[10] = { 8.715017e-02, 4.439243e-01, 1.011650e+00, 5.193789e+00, 2.194442e+01, 1.062124e+01, 2.469876e+01, 6.052479e-02, 5.611410e-02, 5.169743e+00 };
+
+ return PtModifiedHagedornPowerlaw(px,promptGammaPtParam)*GetTAA(fgSelectedCentrality);
+}
+
+Double_t AliGenEMlib::PtThermalRealGamma( const Double_t *px, const Double_t */*dummy*/ )
+{
+ return PtExponential(px,fgkThermPtParam[fgSelectedCentrality]);
+}
+
+Double_t AliGenEMlib::PtDirectRealGamma( const Double_t *px, const Double_t */*dummy*/ )
+{
+ return PtPromptRealGamma(px,px)+PtThermalRealGamma(px,px);
+}
+
+Int_t AliGenEMlib::IpDirectRealGamma(TRandom *)
+{
+ return 22;
+}
+
+Double_t AliGenEMlib::YDirectRealGamma( const Double_t *px, const Double_t */*dummy*/ )
+{
+ return YFlat(*px);
+}
+
+Double_t AliGenEMlib::V2DirectRealGamma( const Double_t *px, const Double_t */*dummy*/ )
+{
+ const static Double_t v2Param[3][16] = {
+ { 1.004245e-01, 1.057645e+00, 0.000000e+00, 2.836492e+00, 2.819767e+00, -6.231529e-02, 1.173054e+00, 2.836492e+00, 1.881590e-01, 1.183293e-02, 1.252249e+00, 0, 1, 4.876263e-03, 1.518526e+00, 4.5 } // 00-20, based on: https://aliceinfo.cern.ch/Notes/node/249
+ ,{ 1.619000e-01, 1.868201e+00, 6.983303e-15, 2.242170e+00, 4.484339e+00, -1.695734e-02, 2.301359e+00, 2.871469e+00, 1.619000e-01, 2.264320e-02, 1.028641e+00, 0, 1, 8.172203e-03, 1.271637e+00, 4.5 } // 20-40
+ ,{ 1.335000e-01, 1.076916e+00, 1.462605e-08, 2.785732e+00, 5.571464e+00, -2.356156e-02, 2.745437e+00, 2.785732e+00, 1.335000e-01, 1.571589e-02, 1.001131e+00, 0, 1, 5.179715e-03, 1.329344e+00, 4.5 } // 00-40
+ };
+ switch(fgSelectedCentrality){
+ case k0020: return V2Param(px,v2Param[0]); break;
+ case k2040: return V2Param(px,v2Param[1]); break;
+ case k0040: return V2Param(px,v2Param[2]); break;
+ // case k0010: return 0.43*V2Param(px,v2Param[1]); break; //V2Pizero(0010)/V2Pizero(2040)=0.43 +-0.025
+ // case k1020: return 0.75*V2Param(px,v2Param[1]); break; //V2Pizero(1020)/V2Pizero(2040)=0.75 +-0.04
+ case k0010: return 0.53*V2Param(px,v2Param[2]); break; //V2Pizero(0010)/V2Pizero(0040)=0.53 +-0.03
+ case k1020: return 0.91*V2Param(px,v2Param[2]); break; //V2Pizero(1020)/V2Pizero(0040)=0.91 +-0.04
+ }
+ return 0;
+}
+
+
+//--------------------------------------------------------------------------
+//
+// DirectVirtGamma
+//
+//--------------------------------------------------------------------------
+Double_t AliGenEMlib::PtPromptVirtGamma( const Double_t *px, const Double_t */*dummy*/ )
+{
+ return IntegratedKrollWada(px,px)*PtPromptRealGamma(px,px);
+}
+
+Double_t AliGenEMlib::PtThermalVirtGamma( const Double_t *px, const Double_t */*dummy*/ )
+{
+ return IntegratedKrollWada(px,px)*PtThermalRealGamma(px,px);
+}
+
+Double_t AliGenEMlib::PtDirectVirtGamma( const Double_t *px, const Double_t */*dummy*/ )
+{
+ return IntegratedKrollWada(px,px)*PtDirectRealGamma(px,px);
+}
+
+Int_t AliGenEMlib::IpDirectVirtGamma(TRandom *)
+{
+ return 220000;
+}
+
+Double_t AliGenEMlib::YDirectVirtGamma( const Double_t *px, const Double_t */*dummy*/ )
+{
+ return YFlat(*px);
+}
+
+Double_t AliGenEMlib::V2DirectVirtGamma( const Double_t *px, const Double_t */*dummy*/ )
+{
+ return V2DirectRealGamma(px,px);
+}
+
//--------------------------------------------------------------------------
//
// Pizero
//--------------------------------------------------------------------------
Int_t AliGenEMlib::IpPizero(TRandom *)
{
-// Return pizero pdg code
- return 111;
+ // Return pizero pdg code
+ return 111;
}
Double_t AliGenEMlib::PtPizero( const Double_t *px, const Double_t */*dummy*/ )
{
-// Generate pizero pT distribution from modified Hagedorn parameterization
-// taken from fit to unidentified hadrons in pp at 7 TeV
- const Double_t kc=0.000565;
- const Double_t kp0=0.2472;
- const Double_t kp1=4.354;
- const Double_t kn=7.007;
- Double_t invYield;
- Double_t x=*px;
+ // double pigammacorr=1; //misuse pion for direct gammas, tuned for 0040, iteration 0
+ // pigammacorr*=2.258900e-01*log(*px+0.001)+1.591291e+00; //iteration 1
+ // pigammacorr*=6.601943e-03*log(*px+0.001)+9.593698e-01; //iteration 2
+ // pigammacorr*=4.019933e-03*log(*px+0.001)+9.843412e-01; //iteration 3
+ // pigammacorr*=-4.543991e-03*log(*px+0.001)+1.010886e+00; //iteration 4
+ // return pigammacorr*PtPromptRealGamma(px,px); //now the gammas from the pi->gg decay have the pt spectrum of prompt real gammas
+
+ // fit functions and corresponding parameter of Pizero pT for pp @ 2.76 TeV and @ 7 TeV and for PbPb @ 2.76 TeV
+
+ Double_t kc=0.;
+ Double_t kn=0.;
+ Double_t kcT=0.;
+ Double_t kT=0.;
+ Double_t kp0=0.;
+ Double_t kp1=0.;
+ Double_t ka=0.;
+ Double_t kb=0.;
+ Double_t kd=0.;
+
+ switch(fgSelectedCollisionsSystem) {
+ case kPbPb:
+ switch (fgSelectedPtParamPi0){
+ case kPichargedParam:
+ // fit to pi charged v1
+ // charged pion from ToF, unidentified hadrons scaled with pion from TPC
+ // for Pb-Pb @ 2.76 TeV
+ switch (fgSelectedCentrality){
+ case k0005:
+ kc=1347.5; kp0=0.9393; kp1=2.254; kn=11.294; kcT=0.002537; kT=2.414;
+ return PtModifiedHagedornThermal(*px,kc,kp0,kp1,kn,kcT,kT);
+ break;
+ case k0510:
+ break;
+ kc=1256.1; kp0=0.9545; kp1=2.248; kn=11.291; kcT=0.002662; kT=2.326;
+ return PtModifiedHagedornThermal(*px,kc,kp0,kp1,kn,kcT,kT);
+ break;
+ case k2030:
+ kc=7421.6; kp0=1.2059; kp1=1.520; kn=10.220; kcT=0.002150; kT=2.196;
+ return PtModifiedHagedornThermal(*px,kc,kp0,kp1,kn,kcT,kT);
+ break;
+ case k3040:
+ kc=1183.2; kp0=1.0478; kp1=1.623; kn=9.8073; kcT=0.00198333; kT=2.073;
+ return PtModifiedHagedornThermal(*px,kc,kp0,kp1,kn,kcT,kT);
+ break;
+ // the following is what went into the Pb-Pb preliminary approval (0-10%)
+ case k0010:
+ return PtModTsallis( *px,
+ fgkModTsallisParamPiChargedPbPb[fgSelectedCentrality][0],
+ fgkModTsallisParamPiChargedPbPb[fgSelectedCentrality][1],
+ fgkModTsallisParamPiChargedPbPb[fgSelectedCentrality][2],
+ fgkModTsallisParamPiChargedPbPb[fgSelectedCentrality][3],
+ fgkModTsallisParamPiChargedPbPb[fgSelectedCentrality][4],
+ fgkModTsallisParamPiChargedPbPb[fgSelectedCentrality][5],
+ fgkModTsallisParamPiChargedPbPb[fgSelectedCentrality][6],
+ 0.135);
+ break;
+ case k1020:
+ return PtModTsallis( *px,
+ fgkModTsallisParamPiChargedPbPb[fgSelectedCentrality][0],
+ fgkModTsallisParamPiChargedPbPb[fgSelectedCentrality][1],
+ fgkModTsallisParamPiChargedPbPb[fgSelectedCentrality][2],
+ fgkModTsallisParamPiChargedPbPb[fgSelectedCentrality][3],
+ fgkModTsallisParamPiChargedPbPb[fgSelectedCentrality][4],
+ fgkModTsallisParamPiChargedPbPb[fgSelectedCentrality][5],
+ fgkModTsallisParamPiChargedPbPb[fgSelectedCentrality][6],
+ 0.135);
+ break;
+ case k2040:
+ return PtModTsallis( *px,
+ fgkModTsallisParamPiChargedPbPb[fgSelectedCentrality][0],
+ fgkModTsallisParamPiChargedPbPb[fgSelectedCentrality][1],
+ fgkModTsallisParamPiChargedPbPb[fgSelectedCentrality][2],
+ fgkModTsallisParamPiChargedPbPb[fgSelectedCentrality][3],
+ fgkModTsallisParamPiChargedPbPb[fgSelectedCentrality][4],
+ fgkModTsallisParamPiChargedPbPb[fgSelectedCentrality][5],
+ fgkModTsallisParamPiChargedPbPb[fgSelectedCentrality][6],
+ 0.135);
+ break;
+ case k4050:
+ kc=6220.0; kp0=1.322; kp1=1.224; kn=9.378; kcT=0.000595; kT=2.383;
+ return PtModifiedHagedornThermal(*px,kc,kp0,kp1,kn,kcT,kT);
+ break;
+ case k5060:
+ kc=2319.0; kp0=1.267; kp1=1.188; kn=9.044; kcT=0.000437; kT=2.276;
+ return PtModifiedHagedornThermal(*px,kc,kp0,kp1,kn,kcT,kT);
+ break;
+ case k4060:
+ kc=4724.0; kp0=1.319; kp1=1.195; kn=9.255; kcT=0.000511; kT=2.344;
+ return PtModifiedHagedornThermal(*px,kc,kp0,kp1,kn,kcT,kT);
+ break;
+ case k6080:
+ kc=2842.0; kp0=1.465; kp1=0.8324; kn=8.167; kcT=0.0001049; kT=2.29;
+ return PtModifiedHagedornThermal(*px,kc,kp0,kp1,kn,kcT,kT);
+ break;
+ case k0020:
+ return PtModTsallis( *px,
+ fgkModTsallisParamPiChargedPbPb[fgSelectedCentrality][0],
+ fgkModTsallisParamPiChargedPbPb[fgSelectedCentrality][1],
+ fgkModTsallisParamPiChargedPbPb[fgSelectedCentrality][2],
+ fgkModTsallisParamPiChargedPbPb[fgSelectedCentrality][3],
+ fgkModTsallisParamPiChargedPbPb[fgSelectedCentrality][4],
+ fgkModTsallisParamPiChargedPbPb[fgSelectedCentrality][5],
+ fgkModTsallisParamPiChargedPbPb[fgSelectedCentrality][6],
+ 0.135);
+ break;
+ case k0040:
+ return PtModTsallis( *px,
+ fgkModTsallisParamPiChargedPbPb[fgSelectedCentrality][0],
+ fgkModTsallisParamPiChargedPbPb[fgSelectedCentrality][1],
+ fgkModTsallisParamPiChargedPbPb[fgSelectedCentrality][2],
+ fgkModTsallisParamPiChargedPbPb[fgSelectedCentrality][3],
+ fgkModTsallisParamPiChargedPbPb[fgSelectedCentrality][4],
+ fgkModTsallisParamPiChargedPbPb[fgSelectedCentrality][5],
+ fgkModTsallisParamPiChargedPbPb[fgSelectedCentrality][6],
+ 0.135);
+ break;
+ case k4080:
+ return PtModTsallis( *px,
+ fgkModTsallisParamPiChargedPbPb[fgSelectedCentrality][0],
+ fgkModTsallisParamPiChargedPbPb[fgSelectedCentrality][1],
+ fgkModTsallisParamPiChargedPbPb[fgSelectedCentrality][2],
+ fgkModTsallisParamPiChargedPbPb[fgSelectedCentrality][3],
+ fgkModTsallisParamPiChargedPbPb[fgSelectedCentrality][4],
+ fgkModTsallisParamPiChargedPbPb[fgSelectedCentrality][5],
+ fgkModTsallisParamPiChargedPbPb[fgSelectedCentrality][6],
+ 0.135);
+ break;
+ default:
+ return 0;
+ }
+ case kPizeroParam:
+ return PtModTsallis( *px,
+ fgkModTsallisParamPi0PbPb[fgSelectedCentrality][0],
+ fgkModTsallisParamPi0PbPb[fgSelectedCentrality][1],
+ fgkModTsallisParamPi0PbPb[fgSelectedCentrality][2],
+ fgkModTsallisParamPi0PbPb[fgSelectedCentrality][3],
+ fgkModTsallisParamPi0PbPb[fgSelectedCentrality][4],
+ fgkModTsallisParamPi0PbPb[fgSelectedCentrality][5],
+ fgkModTsallisParamPi0PbPb[fgSelectedCentrality][6],
+ 0.135);
+ default:
+ return 0;
+
+ }
+ case kpPb:
+ // fit to charged pions for p-Pb @ 5.02TeV
+ switch (fgSelectedPtParamPi0){
+ case kPichargedParam:
+ kc=235.5; ka=0.6903; kb=0.06864; kp0=2.289; kp1=0.5872; kd=0.6474; kn=7.842;
+ return PtModifiedHagedornExp2(*px,kc,ka,kb,kp0,kp1,kd,kn);
+ break;
+ default:
+ return 0;
+
+ }
+ case kpp7TeV:
+ switch (fgSelectedPtParamPi0){
+ // Tsallis fit to final pizero (PHOS+PCM) -> used for publication
+ // for pp @ 7 TeV
+ case kPizeroParam: // fit to combined spectrum with stat errors only
+ return PtTsallis(*px,fgkParamSetPi07TeV[kPizeroParam][0],fgkParamSetPi07TeV[kPizeroParam][1],fgkParamSetPi07TeV[kPizeroParam][2],fgkParamSetPi07TeV[kPizeroParam][3]);
+ break;
+ case kPizeroParamlow:
+ return PtModTsallis( *px,
+ fgkParamSetPi07TeV[kPizeroParamlow][0],
+ fgkParamSetPi07TeV[kPizeroParamlow][1],
+ fgkParamSetPi07TeV[kPizeroParamlow][2],
+ fgkParamSetPi07TeV[kPizeroParamlow][3],
+ fgkParamSetPi07TeV[kPizeroParamlow][4],
+ fgkParamSetPi07TeV[kPizeroParamlow][5],
+ fgkParamSetPi07TeV[kPizeroParamlow][6],
+ 0.135);
+ break;
+ case kPizeroParamhigh:
+ return PtModTsallis( *px,
+ fgkParamSetPi07TeV[kPizeroParamhigh][0],
+ fgkParamSetPi07TeV[kPizeroParamhigh][1],
+ fgkParamSetPi07TeV[kPizeroParamhigh][2],
+ fgkParamSetPi07TeV[kPizeroParamhigh][3],
+ fgkParamSetPi07TeV[kPizeroParamhigh][4],
+ fgkParamSetPi07TeV[kPizeroParamhigh][5],
+ fgkParamSetPi07TeV[kPizeroParamhigh][6],
+ 0.135);
+ break;
+ case kPichargedParamhigh:
+ return PtModTsallis( *px,
+ fgkParamSetPi07TeV[kPichargedParamhigh][0],
+ fgkParamSetPi07TeV[kPichargedParamhigh][1],
+ fgkParamSetPi07TeV[kPichargedParamhigh][2],
+ fgkParamSetPi07TeV[kPichargedParamhigh][3],
+ fgkParamSetPi07TeV[kPichargedParamhigh][4],
+ fgkParamSetPi07TeV[kPichargedParamhigh][5],
+ fgkParamSetPi07TeV[kPichargedParamhigh][6],
+ 0.135);
+ break;
+
+ default:
+ return 0;
+ }
+
+
+ case kpp2760GeV:
+ switch (fgSelectedPtParamPi0){
+ // Tsallis fit to pizero: published pi0
+ // for pp @ 2.76 TeV
+ case kPizeroParam: //published fit parameters
+ return PtTsallis(*px,fgkParamSetPi02760GeV[kPizeroParam][0],fgkParamSetPi02760GeV[kPizeroParam][1],fgkParamSetPi02760GeV[kPizeroParam][2],fgkParamSetPi02760GeV[kPizeroParam][3]);
+ break;
+ case kPizeroParamlow:
+ return PtModTsallis( *px,
+ fgkParamSetPi02760GeV[kPizeroParamlow][0],
+ fgkParamSetPi02760GeV[kPizeroParamlow][1],
+ fgkParamSetPi02760GeV[kPizeroParamlow][2],
+ fgkParamSetPi02760GeV[kPizeroParamlow][3],
+ fgkParamSetPi02760GeV[kPizeroParamlow][4],
+ fgkParamSetPi02760GeV[kPizeroParamlow][5],
+ fgkParamSetPi02760GeV[kPizeroParamlow][6],
+ 0.135);
+ break;
+ case kPizeroParamhigh:
+ return PtModTsallis( *px,
+ fgkParamSetPi02760GeV[kPizeroParamhigh][0],
+ fgkParamSetPi02760GeV[kPizeroParamhigh][1],
+ fgkParamSetPi02760GeV[kPizeroParamhigh][2],
+ fgkParamSetPi02760GeV[kPizeroParamhigh][3],
+ fgkParamSetPi02760GeV[kPizeroParamhigh][4],
+ fgkParamSetPi02760GeV[kPizeroParamhigh][5],
+ fgkParamSetPi02760GeV[kPizeroParamhigh][6],
+ 0.135);
+ break;
+ case kPichargedParam:
+ return PtModTsallis( *px,
+ fgkParamSetPi02760GeV[kPichargedParam][0],
+ fgkParamSetPi02760GeV[kPichargedParam][1],
+ fgkParamSetPi02760GeV[kPichargedParam][2],
+ fgkParamSetPi02760GeV[kPichargedParam][3],
+ fgkParamSetPi02760GeV[kPichargedParam][4],
+ fgkParamSetPi02760GeV[kPichargedParam][5],
+ fgkParamSetPi02760GeV[kPichargedParam][6],
+ 0.135);
+ break;
+ case kPizeroParamAlter:
+ return PtQCD( *px,
+ fgkParamSetPi02760GeV[kPizeroParamAlter][0],
+ fgkParamSetPi02760GeV[kPizeroParamAlter][1],
+ fgkParamSetPi02760GeV[kPizeroParamAlter][2],
+ fgkParamSetPi02760GeV[kPizeroParamAlter][3],
+ fgkParamSetPi02760GeV[kPizeroParamAlter][4]);
+ break;
+ case kPizeroParamAlterlow:
+ return PtQCD( *px,
+ fgkParamSetPi02760GeV[kPizeroParamAlter][0],
+ fgkParamSetPi02760GeV[kPizeroParamAlter][1],
+ fgkParamSetPi02760GeV[kPizeroParamAlter][2],
+ fgkParamSetPi02760GeV[kPizeroParamAlter][3],
+ fgkParamSetPi02760GeV[kPizeroParamAlter][4]);
+ break;
+ default:
+ return 0;
+ }
+ case kpp900GeV:
+ switch (fgSelectedPtParamPi0){
+ // Tsallis fit to pizero: published pi0
+ // for pp @ 0.9 TeV
+ case kPizeroParam: //published fit parameters
+ return PtTsallis( *px,
+ fgkParamSetPi0900GeV[kPizeroParam][0],
+ fgkParamSetPi0900GeV[kPizeroParam][1],
+ fgkParamSetPi0900GeV[kPizeroParam][2],
+ fgkParamSetPi0900GeV[kPizeroParam][3]);
+ break;
+ case kPizeroParamAlter:
+ return PtQCD( *px,
+ fgkParamSetPi0900GeV[kPizeroParamAlter][0],
+ fgkParamSetPi0900GeV[kPizeroParamAlter][1],
+ fgkParamSetPi0900GeV[kPizeroParamAlter][2],
+ fgkParamSetPi0900GeV[kPizeroParamAlter][3],
+ fgkParamSetPi0900GeV[kPizeroParamAlter][4]);
+ break;
+ case kPizeroParamhigh:
+ return PtQCD( *px,
+ fgkParamSetPi0900GeV[kPizeroParamAlterlow][0],
+ fgkParamSetPi0900GeV[kPizeroParamAlterlow][1],
+ fgkParamSetPi0900GeV[kPizeroParamAlterlow][2],
+ fgkParamSetPi0900GeV[kPizeroParamAlterlow][3],
+ fgkParamSetPi0900GeV[kPizeroParamAlterlow][4]);
+ break;
+ default:
+ return 0;
+ }
+
+ default:
+ return 0;
+ }
- invYield = kc/TMath::Power(kp0+x/kp1,kn);
-
- return invYield*(2*TMath::Pi()*x);
-
}
Double_t AliGenEMlib::YPizero( const Double_t *py, const Double_t */*dummy*/ )
{
- return YFlat(*py);
+ return YFlat(*py);
+
+}
+Double_t AliGenEMlib::V2Pizero( const Double_t *px, const Double_t */*dummy*/ )
+{
+ double n1,n2,n3,n4,n5;
+ double v1,v2,v3,v4,v5;
+ switch(fgSelectedCentrality) {
+ case k0010:
+ n1=PtModifiedHagedornPowerlaw(px,fgkRawPtOfV2Param[k0005]);
+ v1=V2Param(px,fgkV2param[k0005]);
+ n2=PtModifiedHagedornPowerlaw(px,fgkRawPtOfV2Param[k0510]);
+ v2=V2Param(px,fgkV2param[k0510]);
+ return (n1*v1+n2*v2)/(n1+n2);
+ break;
+ case k0020:
+ n1=PtModifiedHagedornPowerlaw(px,fgkRawPtOfV2Param[k0005]);
+ v1=V2Param(px,fgkV2param[k0005]);
+ n2=PtModifiedHagedornPowerlaw(px,fgkRawPtOfV2Param[k0510]);
+ v2=V2Param(px,fgkV2param[k0510]);
+ n3=PtModifiedHagedornPowerlaw(px,fgkRawPtOfV2Param[k1020]);
+ v3=V2Param(px,fgkV2param[k1020]);
+ return (n1*v1+n2*v2+2*n3*v3)/(n1+n2+2*n3);
+ break;
+ case k2040:
+ n1=PtModifiedHagedornPowerlaw(px,fgkRawPtOfV2Param[k2030]);
+ v1=V2Param(px,fgkV2param[k2030]);
+ n2=PtModifiedHagedornPowerlaw(px,fgkRawPtOfV2Param[k3040]);
+ v2=V2Param(px,fgkV2param[k3040]);
+ return (n1*v1+n2*v2)/(n1+n2);
+ break;
+ case k0040:
+ n1=PtModifiedHagedornPowerlaw(px,fgkRawPtOfV2Param[k0005]);
+ v1=V2Param(px,fgkV2param[k0005]);
+ n2=PtModifiedHagedornPowerlaw(px,fgkRawPtOfV2Param[k0510]);
+ v2=V2Param(px,fgkV2param[k0510]);
+ n3=PtModifiedHagedornPowerlaw(px,fgkRawPtOfV2Param[k1020]);
+ v3=V2Param(px,fgkV2param[k1020]);
+ n4=PtModifiedHagedornPowerlaw(px,fgkRawPtOfV2Param[k2030]);
+ v4=V2Param(px,fgkV2param[k2030]);
+ n5=PtModifiedHagedornPowerlaw(px,fgkRawPtOfV2Param[k3040]);
+ v5=V2Param(px,fgkV2param[k3040]);
+ return (n1*v1+n2*v2+2*n3*v3+2*n4*v4+2*n5*v5)/(n1+n2+2*n3+2*n4+2*n5);
+ break;
+
+ default:
+ return V2Param(px,fgkV2param[fgSelectedCentrality]);
+ }
}
//--------------------------------------------------------------------------
//--------------------------------------------------------------------------
Int_t AliGenEMlib::IpEta(TRandom *)
{
-// Return eta pdg code
- return 221;
+ // Return eta pdg code
+ return 221;
}
Double_t AliGenEMlib::PtEta( const Double_t *px, const Double_t */*dummy*/ )
{
-// Eta pT
- return MtScal(*px,2);
+
+ // fit functions and corresponding parameter of Eta pT for pp @ 2.76 TeV and @ 7 TeV
+ // and mtscaled pT
+
+ // parameters for Tsallis fit to eta
+ Double_t km = 0.;
+ Double_t kc = 0.;
+ Double_t kT = 0.;
+ Double_t kn = 0.;
+
+ // parameters for Tsallis fit to pi0
+ Double_t kmPi0 = 0.;
+ Double_t kcPi0 = 0.;
+ Double_t kTPi0 = 0.;
+ Double_t knPi0 = 0.;
+
+ // parameters for fit to eta/pi0
+ Double_t krm1 = 0.;
+ Double_t krm2 = 0.;
+ Double_t krc1 = 0.;
+ Double_t krc2 = 0.;
+ Double_t krT1 = 0.;
+ Double_t krT2 = 0.;
+ Double_t krn = 0.;
+
+ switch(fgSelectedCollisionsSystem){
+ case kpp7TeV:
+ switch(fgSelectedPtParamEta){
+ // Tsallis fit to final eta (PHOS+PCM) -> used stat errors only for final publication
+ // for pp @ 7 TeV
+ case kEtaParamRatiopp:
+ krm1 = 0.547853; krm2 = 0.134977; krc1 = 1.44198e+11; krc2 = 2.06751e+12 ; krT1 = 0.154567 ; krT2 = 0.139634 ; krn=32.0715;
+ kmPi0=0.134977; kcPi0=2.31335/(2*TMath::Pi()); kTPi0=0.1433; knPi0=7.003;
+ return PtParticleRatiopp(*px, krm1, krm2, krc1, krc2, krT1, krT2, krn) * PtTsallis(*px,kmPi0,kcPi0,kTPi0,knPi0);
+ break;
+ case kEtaParampp:
+ km = 0.547853; kc = 0.290164/(2*TMath::Pi()); kT = 0.212; kn = 7.352;
+ return PtTsallis(*px,km,kc,kT,kn);
+ break;
+ // NOTE: None of these parametrisations look right - no idea where they come from
+ case kEtaParampplow:
+ km = 0.547853; kc = 1.970; kT = 0.253; kn = 7.591;
+ return PtTsallis(*px,km,kc,kT,kn);
+ break;
+ case kEtaParampphigh:
+ km = 0.547853; kc = 3.060; kT = 0.212; kn = 6.578;
+ return PtTsallis(*px,km,kc,kT,kn);
+ break;
+ default:
+ return MtScal(*px,kEta);
+ }
+ case kpp2760GeV:
+ switch(fgSelectedPtParamEta){
+ // Tsallis fit to preliminary eta (QM'11)
+ // for pp @ 2.76 TeV
+ // NOTE: None of these parametrisations look right - no idea where they come from
+ case kEtaParampp:
+ km = 0.547853; kc = 1.971; kT = 0.188; kn = 6.308;
+ return PtTsallis(*px,km,kc,kT,kn);
+ case kEtaParampplow:
+ km = 0.547853; kc = 1.228; kT = 0.220; kn = 7.030;
+ return PtTsallis(*px,km,kc,kT,kn);
+ break;
+ case kEtaParampphigh:
+ km = 0.547853; kc = 2.802; kT = 0.164; kn = 5.815;
+ return PtTsallis(*px,km,kc,kT,kn);
+ break;
+ default:
+ return MtScal(*px,kEta);
+ break;
+ }
+ default:
+ return MtScal(*px,kEta);
+ break;
+ }
}
Double_t AliGenEMlib::YEta( const Double_t *py, const Double_t */*dummy*/ )
{
- return YFlat(*py);
+ return YFlat(*py);
+}
+Double_t AliGenEMlib::V2Eta( const Double_t *px, const Double_t */*dummy*/ )
+{
+ return KEtScal(*px,kEta); //V2Param(px,fgkV2param[1][fgSelectedV2Param]);
}
//--------------------------------------------------------------------------
// Rho
//
//--------------------------------------------------------------------------
-Int_t AliGenEMlib::IpRho(TRandom *)
+Int_t AliGenEMlib::IpRho0(TRandom *)
{
-// Return rho pdg code
- return 113;
+ // Return rho pdg code
+ return 113;
}
-Double_t AliGenEMlib::PtRho( const Double_t *px, const Double_t */*dummy*/ )
+Double_t AliGenEMlib::PtRho0( const Double_t *px, const Double_t */*dummy*/ )
{
-// Rho pT
- return MtScal(*px,3);
+ // Rho pT
+ return MtScal(*px,kRho0);
}
-Double_t AliGenEMlib::YRho( const Double_t *py, const Double_t */*dummy*/ )
+Double_t AliGenEMlib::YRho0( const Double_t *py, const Double_t */*dummy*/ )
{
- return YFlat(*py);
+ return YFlat(*py);
+}
+Double_t AliGenEMlib::V2Rho0( const Double_t *px, const Double_t */*dummy*/ )
+{
+ return KEtScal(*px,kRho0);
}
+
//--------------------------------------------------------------------------
//
// Omega
//--------------------------------------------------------------------------
Int_t AliGenEMlib::IpOmega(TRandom *)
{
-// Return omega pdg code
- return 223;
+ // Return omega pdg code
+ return 223;
}
Double_t AliGenEMlib::PtOmega( const Double_t *px, const Double_t */*dummy*/ )
{
-// Omega pT
- return MtScal(*px,4);
+ // Omega pT
+ // fit functions and corresponding parameter of Omega pT for preliminary pp @ 7 TeV data
+ // and mtscaled pT
+
+ // parameters for Tsallis fit to omega
+ Double_t km = 0.;
+ Double_t kc = 0.;
+ Double_t kT = 0.;
+ Double_t kn = 0.;
+
+ // parameters for Tsallis fit to pi0
+ Double_t kmPi0 = 0.;
+ Double_t kcPi0 = 0.;
+ Double_t kTPi0 = 0.;
+ Double_t knPi0 = 0.;
+
+ // parameters for fit to omega/pi0
+ Double_t krm1 = 0.;
+ Double_t krm2 = 0.;
+ Double_t krc1 = 0.;
+ Double_t krc2 = 0.;
+ Double_t krT1 = 0.;
+ Double_t krT2 = 0.;
+ Double_t krn = 0.;
+
+ switch(fgSelectedCollisionsSystem){
+ case kpp7TeV:
+ switch(fgSelectedPtParamOmega){
+ // Tsallis fit to final omega (PHOS) -> stat errors only, preliminary QM12
+ // for pp @ 7 TeV
+ case kOmegaParamRatiopp:
+ krm1 = 0.78265; krm2 = 0.134977; krc1 = 21240028553.4600143433; krc2 = 168266377865.0805969238 ; krT1 = 0.21175 ; krT2 = 0.14328 ; krn=12.8831831756;
+ kmPi0=0.134977; kcPi0=2.31335/(2*TMath::Pi()); kTPi0=0.1433; knPi0=7.003;
+ return PtParticleRatiopp(*px, krm1, krm2, krc1, krc2, krT1, krT2, krn) * PtTsallis(*px,kmPi0,kcPi0,kTPi0,knPi0);
+ break;
+ case kOmegaParampp:
+ km = 0.78265; kc = 0.340051/(2*TMath::Pi()); kT = 0.206; kn = 6.31422;
+ return PtTsallis(*px,km,kc,kT,kn);
+ break;
+ default:
+ return MtScal(*px,kOmega);
+ }
+ default:
+ return MtScal(*px,kOmega);
+ break;
+ }
+
+ return MtScal(*px,kOmega);
+
}
Double_t AliGenEMlib::YOmega( const Double_t *py, const Double_t */*dummy*/ )
{
- return YFlat(*py);
+ return YFlat(*py);
+}
+
+Double_t AliGenEMlib::V2Omega( const Double_t *px, const Double_t */*dummy*/ )
+{
+ return KEtScal(*px,kOmega);
}
+
//--------------------------------------------------------------------------
//
// Etaprime
//--------------------------------------------------------------------------
Int_t AliGenEMlib::IpEtaprime(TRandom *)
{
-// Return etaprime pdg code
- return 331;
+ // Return etaprime pdg code
+ return 331;
}
Double_t AliGenEMlib::PtEtaprime( const Double_t *px, const Double_t */*dummy*/ )
{
-// Eta pT
- return MtScal(*px,5);
+ // Eta pT
+ return MtScal(*px,kEtaprime);
}
Double_t AliGenEMlib::YEtaprime( const Double_t *py, const Double_t */*dummy*/ )
{
- return YFlat(*py);
+ return YFlat(*py);
}
+Double_t AliGenEMlib::V2Etaprime( const Double_t *px, const Double_t */*dummy*/ )
+{
+ return KEtScal(*px,kEtaprime);
+}
+
//--------------------------------------------------------------------------
//
// Phi
//--------------------------------------------------------------------------
Int_t AliGenEMlib::IpPhi(TRandom *)
{
-// Return phi pdg code
- return 333;
+ // Return phi pdg code
+ return 333;
}
Double_t AliGenEMlib::PtPhi( const Double_t *px, const Double_t */*dummy*/ )
{
-// Phi pT
- return MtScal(*px,6);
+ // Phi pT
+ // fit functions and corresponding parameter of Phi pT for preliminary pp @ 7 TeV data
+ // and PbPb collisions
+ // and mtscaled pT
+
+ // parameters for Tsallis fit to phi
+ Double_t km = 0.;
+ Double_t kc = 0.;
+ Double_t kT = 0.;
+ Double_t kn = 0.;
+
+
+ switch(fgSelectedCollisionsSystem){
+// case kPbPb:
+// switch(fgSelectedCentrality){
+// // Tsallis fit to final phi->K+K- (TPC, ITS) -> stat+syst
+// case k0010:
+// switch(fgSelectedPtParamPhi){
+// case kPhiParamPbPb:
+// km = 0.78265; kc = 0.340051/(2*TMath::Pi()); kT = 0.206; kn = 6.31422;
+// return PtTsallis(*px,km,kc,kT,kn);
+// break;
+// default:
+// return MtScal(*px,kPhi);
+// }
+// default:
+// return MtScal(*px,kPhi);
+// }
+ case kpp7TeV:
+ switch(fgSelectedPtParamPhi){
+ // Tsallis fit to final phi->K+K- (TPC, ITS) -> stat+syst
+ // for pp @ 7 TeV
+ case kPhiParampp:
+ km = 1.01946; kc = 0.0269578/(2*TMath::Pi()); kT = 0.2718119311; kn = 6.6755739295;
+ return PtTsallis(*px,km,kc,kT,kn);
+ break;
+ default:
+ return MtScal(*px,kPhi);
+ }
+ default:
+ return MtScal(*px,kPhi);
+ break;
+ }
+ return MtScal(*px,kPhi);
+
}
Double_t AliGenEMlib::YPhi( const Double_t *py, const Double_t */*dummy*/ )
{
- return YFlat(*py);
+ return YFlat(*py);
+}
+
+Double_t AliGenEMlib::V2Phi( const Double_t *px, const Double_t */*dummy*/ )
+{
+ return KEtScal(*px,kPhi);
+}
+
+//--------------------------------------------------------------------------
+//
+// Jpsi
+//
+//--------------------------------------------------------------------------
+Int_t AliGenEMlib::IpJpsi(TRandom *)
+{
+ // Return phi pdg code
+ return 443;
+}
+
+Double_t AliGenEMlib::PtJpsi( const Double_t *px, const Double_t */*dummy*/ )
+{
+ // Jpsi pT
+ // based on: //https://aliceinfo.cern.ch/Notes/node/242, https://aliceinfo.cern.ch/Figure/node/3457, www.sciencedirect.com/science/article/pii/S0370269312011446
+ const static Double_t jpsiPtParam[2][3] = {
+ { 9.686337e-03, 2.629441e-01, 4.552044e+00 }
+ ,{ 3.403549e-03, 2.897061e-01, 3.644278e+00 }
+ };
+ const double pt=px[0]*2.28/2.613;
+ switch(fgSelectedCentrality) {
+ case k0020: return 2.405*PtDoublePowerlaw(&pt,jpsiPtParam[0]); break;
+ case k2040: return 2.405*PtDoublePowerlaw(&pt,jpsiPtParam[1]); break;
+ case k0040: return 0.5*2.405*(PtDoublePowerlaw(&pt,jpsiPtParam[0])+PtDoublePowerlaw(&pt,jpsiPtParam[1])); break;
+ default:
+ return MtScal(*px,kJpsi);
+
+ }
+ return 0;
+}
+
+Double_t AliGenEMlib::YJpsi( const Double_t *py, const Double_t */*dummy*/ )
+{
+ return YFlat(*py);
+}
+
+Double_t AliGenEMlib::V2Jpsi( const Double_t *px, const Double_t */*dummy*/ )
+{
+ const static Double_t v2Param[16] = { 1.156000e-01, 8.936854e-01, 0.000000e+00, 4.000000e+00, 6.222375e+00, -1.600314e-01, 8.766676e-01, 7.824143e+00, 1.156000e-01, 3.484503e-02, 4.413685e-01, 0, 1, 3.484503e-02, 4.413685e-01, 7.2 };
+ switch(fgSelectedCentrality){
+ case k2040: return V2Param(px,v2Param); break;
+ case k0010: return 0.43*V2Param(px,v2Param); break; //V2Pizero(0010)/V2Pizero(2040)=0.43 +-0.025
+ case k1020: return 0.75*V2Param(px,v2Param); break; //V2Pizero(1020)/V2Pizero(2040)=0.75 +-0.04
+ case k0020: return 0.66*V2Param(px,v2Param); break; //V2Pizero(0020)/V2Pizero(2040)=0.66 +-0.035
+ case k0040: return 0.82*V2Param(px,v2Param); break; //V2Pizero(0040)/V2Pizero(2040)=0.82 +-0.05
+ }
+ return 0;
+}
+
+//--------------------------------------------------------------------------
+//
+// Sigma
+//
+//--------------------------------------------------------------------------
+Int_t AliGenEMlib::IpSigma(TRandom *)
+{
+ // Return Sigma pdg code
+ return 3212;
+}
+
+Double_t AliGenEMlib::PtSigma( const Double_t *px, const Double_t */*dummy*/ )
+{
+ // Sigma pT
+ return MtScal(*px,kSigma0);
+}
+
+Double_t AliGenEMlib::YSigma( const Double_t *py, const Double_t */*dummy*/ )
+{
+ return YFlat(*py);
+
+}
+
+Double_t AliGenEMlib::V2Sigma0( const Double_t *px, const Double_t */*dummy*/ )
+{
+ return KEtScal(*px,kSigma0);
+}
+
+
+//--------------------------------------------------------------------------
+//
+// K0short
+//
+//--------------------------------------------------------------------------
+
+Int_t AliGenEMlib::IpK0short(TRandom *)
+{
+ // Return kzeroshort pdg code
+ return 310;
+}
+
+Double_t AliGenEMlib::PtK0short( const Double_t *px, const Double_t */*dummy*/ )
+{
+ // K0short pT
+
+ Double_t ka = 0;
+ Double_t kb = 0;
+ Double_t kc = 0;
+ Double_t kd = 0;
+ Double_t ke = 0;
+ Double_t kf = 0;
+
+ switch (fgSelectedCentrality){
+ case k0010:
+ ka =9.21859; kb=5.71299; kc=-3.34251; kd=0.48796; ke=0.0192272; kf=3.82224;
+ return PtXQCD( *px, ka, kb, kc, kd, ke, kf);
+ break;
+ case k1020:
+ ka=6.2377; kb=5.6133; kc=-117.295; kd=3.51154; ke=36.3047; kf=0.456243;
+ return PtXQCD( *px, ka, kb, kc, kd, ke, kf);
+ break;
+ case k0020:
+ ka=7.7278; kb=5.6686; kc=-3.29259; kd=0.475403; ke=0.0223951; kf=3.69326;
+ return PtXQCD( *px, ka, kb, kc, kd, ke, kf);
+ break;
+ case k2040:
+ ka=3.38301; kb= 5.5323; kc=-96.078; kd=3.30782; ke=31.085; kf=0.466908;
+ return PtXQCD( *px, ka, kb, kc, kd, ke, kf);
+ break;
+ case k0040:
+ ka=5.55478; kb=5.61919; kc=-125.635; kd=3.5637; ke=38.9668; kf=0.47068;
+ return PtXQCD( *px, ka, kb, kc, kd, ke, kf);
+ break;
+ case k4080:
+ ka=0.731606; kb=5.49931; kc=-25.3106; kd=2.2439; ke=8.25063; kf= 0.289288;
+ return PtXQCD( *px, ka, kb, kc, kd, ke, kf);
+ break;
+ default:
+ return MtScal(*px,kK0s);
+ break;
+
+ }
+}
+Double_t AliGenEMlib::YK0short( const Double_t *py, const Double_t */*dummy*/ )
+{
+ return YFlat(*py);
+
+}
+
+Double_t AliGenEMlib::V2K0sshort( const Double_t *px, const Double_t */*dummy*/ )
+{
+ return KEtScal(*px,kK0s);
+}
+
+
+//--------------------------------------------------------------------------
+//
+// Delta ++
+//
+//--------------------------------------------------------------------------
+Int_t AliGenEMlib::IpDeltaPlPl(TRandom *)
+{
+ // Return Delta++ pdg code
+ return 2224;
+}
+
+Double_t AliGenEMlib::PtDeltaPlPl( const Double_t *px, const Double_t */*dummy*/ )
+{
+ // Delta++ pT
+ return MtScal(*px,kDeltaPlPl);
+}
+
+Double_t AliGenEMlib::YDeltaPlPl( const Double_t *py, const Double_t */*dummy*/ )
+{
+ return YFlat(*py);
+
+}
+
+Double_t AliGenEMlib::V2DeltaPlPl( const Double_t *px, const Double_t */*dummy*/ )
+{
+ return KEtScal(*px,kDeltaPlPl);
+}
+
+
+//--------------------------------------------------------------------------
+//
+// Delta +
+//
+//--------------------------------------------------------------------------
+Int_t AliGenEMlib::IpDeltaPl(TRandom *)
+{
+ // Return Delta+ pdg code
+ return 2214;
+}
+
+Double_t AliGenEMlib::PtDeltaPl( const Double_t *px, const Double_t */*dummy*/ )
+{
+ // Delta+ pT
+ return MtScal(*px,kDeltaPl);
+}
+
+Double_t AliGenEMlib::YDeltaPl( const Double_t *py, const Double_t */*dummy*/ )
+{
+ return YFlat(*py);
+
+}
+
+Double_t AliGenEMlib::V2DeltaPl( const Double_t *px, const Double_t */*dummy*/ )
+{
+ return KEtScal(*px,kDeltaPl);
+}
+
+
+//--------------------------------------------------------------------------
+//
+// Delta -
+//
+//--------------------------------------------------------------------------
+Int_t AliGenEMlib::IpDeltaMi(TRandom *)
+{
+ // Return Delta- pdg code
+ return 1114;
+}
+
+Double_t AliGenEMlib::PtDeltaMi( const Double_t *px, const Double_t */*dummy*/ )
+{
+ // Delta- pT
+ return MtScal(*px,kDeltaMi);
+}
+
+Double_t AliGenEMlib::YDeltaMi( const Double_t *py, const Double_t */*dummy*/ )
+{
+ return YFlat(*py);
+
+}
+
+Double_t AliGenEMlib::V2DeltaMi( const Double_t *px, const Double_t */*dummy*/ )
+{
+ return KEtScal(*px,kDeltaMi);
+}
+
+
+
+//--------------------------------------------------------------------------
+//
+// Delta 0
+//
+//--------------------------------------------------------------------------
+Int_t AliGenEMlib::IpDeltaZero(TRandom *)
+{
+ // Return Delta0 pdg code
+ return 2114;
+}
+
+Double_t AliGenEMlib::PtDeltaZero( const Double_t *px, const Double_t */*dummy*/ )
+{
+ // Delta0 pT
+ return MtScal(*px,kDeltaZero);
+}
+
+Double_t AliGenEMlib::YDeltaZero( const Double_t *py, const Double_t */*dummy*/ )
+{
+ return YFlat(*py);
+
+}
+
+Double_t AliGenEMlib::V2DeltaZero( const Double_t *px, const Double_t */*dummy*/ )
+{
+ return KEtScal(*px,kDeltaZero);
+}
+
+
+//--------------------------------------------------------------------------
+//
+// rho +
+//
+//--------------------------------------------------------------------------
+Int_t AliGenEMlib::IpRhoPl(TRandom *)
+{
+ // Return rho+ pdg code
+ return 213;
+}
+
+Double_t AliGenEMlib::PtRhoPl( const Double_t *px, const Double_t */*dummy*/ )
+{
+ // rho + pT
+ return MtScal(*px,kRhoPl);
+}
+
+Double_t AliGenEMlib::YRhoPl( const Double_t *py, const Double_t */*dummy*/ )
+{
+ return YFlat(*py);
}
-Double_t AliGenEMlib::YFlat(Double_t y)
+Double_t AliGenEMlib::V2RhoPl( const Double_t *px, const Double_t */*dummy*/ )
{
+ return KEtScal(*px,kRhoPl);
+}
+
+
//--------------------------------------------------------------------------
//
-// flat rapidity distribution
+// rho -
//
//--------------------------------------------------------------------------
+Int_t AliGenEMlib::IpRhoMi(TRandom *)
+{
+ // Return rho- pdg code
+ return -213;
+}
+
+Double_t AliGenEMlib::PtRhoMi( const Double_t *px, const Double_t */*dummy*/ )
+{
+ // rho- pT
+ return MtScal(*px,kRhoMi);
+}
+
+Double_t AliGenEMlib::YRhoMi( const Double_t *py, const Double_t */*dummy*/ )
+{
+ return YFlat(*py);
+
+}
+
+Double_t AliGenEMlib::V2RhoMi( const Double_t *px, const Double_t */*dummy*/ )
+{
+ return KEtScal(*px,kRhoMi);
+}
+
+
+//--------------------------------------------------------------------------
+//
+// K0 *
+//
+//--------------------------------------------------------------------------
+Int_t AliGenEMlib::IpK0star(TRandom *)
+{
+ // Return K0 * pdg code
+ return 313;
+}
+
+Double_t AliGenEMlib::PtK0star( const Double_t *px, const Double_t */*dummy*/ )
+{
+ // K0 * pT
+ return MtScal(*px,kK0star);
+}
+
+Double_t AliGenEMlib::YK0star( const Double_t *py, const Double_t */*dummy*/ )
+{
+ return YFlat(*py);
+
+}
+
+Double_t AliGenEMlib::V2K0star( const Double_t *px, const Double_t */*dummy*/ )
+{
+ return KEtScal(*px,kK0star);
+}
+
+
+
+Double_t AliGenEMlib::YFlat(Double_t /*y*/)
+{
+ //--------------------------------------------------------------------------
+ //
+ // flat rapidity distribution
+ //
+ //--------------------------------------------------------------------------
- Double_t dNdy = 1.;
+ Double_t dNdy = 1.;
- return dNdy;
+ return dNdy;
}
+
//=============================================================
//
// Mt-scaling
//
//=============================================================
//
- Double_t AliGenEMlib::MtScal(Double_t pt, Int_t np)
+Double_t AliGenEMlib::MtScal(Double_t pt, Int_t np)
{
-// Function for the calculation of the Pt distribution for a
-// given particle np, from the pizero Pt distribution using
-// mt scaling.
-
-// MASS 1=>PIZERO, 2=>ETA, 3=>RHO, 4=>OMEGA, 5=>ETAPRIME, 6=>PHI
-
- const Double_t khm[6] = {0.13498, 0.54751, 0.7755, 0.78265, 0.95778, 1.01946};
- np--;
+ // Function for the calculation of the Pt distribution for a
+ // given particle np, from the pizero Pt distribution using
+ // mt scaling.
+
+ Double_t scaledPt = sqrt(pt*pt + fgkHM[np]*fgkHM[np] - fgkHM[0]*fgkHM[0]);
+ Double_t scaledYield = PtPizero(&scaledPt, (Double_t*) 0);
+
+ // VALUE MESON/PI AT 5 GeV/c
+ Double_t NormPt = 5.;
+ Double_t scaledNormPt = sqrt(NormPt*NormPt + fgkHM[np]*fgkHM[np] - fgkHM[0]*fgkHM[0]);
+
+ Int_t selectedCol;
+ switch (fgSelectedCollisionsSystem){
+ case kpp900GeV:
+ selectedCol=0;
+ break;
+ case kpp2760GeV:
+ selectedCol=0;
+ break;
+ case kpp7TeV:
+ selectedCol=0;
+ break;
+ case kpPb:
+ selectedCol=1;
+ break;
+ case kPbPb:
+ selectedCol=2;
+ break;
+ default:
+ selectedCol=0;
+ printf("<AliGenEMlib::MtScal> no collision system has been given\n");
+ }
+
+ Double_t norm = fgkMtFactor[selectedCol][np] * (PtPizero(&NormPt, (Double_t*) 0) / PtPizero(&scaledNormPt, (Double_t*) 0));
+
+ return norm*(pt/scaledPt)*scaledYield;
+}
- Double_t scaledPt = sqrt(pt*pt + khm[np]*khm[np] - khm[0]*khm[0]);
- Double_t scaledYield = PtPizero(&scaledPt, (Double_t*) 0);
+Double_t AliGenEMlib::KEtScal(Double_t pt, Int_t np)
+{
+ const int nq=2; //number of quarks for particle np, here always 2
+ Double_t scaledPt = sqrt(pow(2.0/nq*(sqrt(pt*pt+fgkHM[np]*fgkHM[np])-fgkHM[np])+fgkHM[0],2)-fgkHM[0]*fgkHM[0]);
+ return V2Pizero(&scaledPt, (Double_t*) 0);
+}
- // VALUE MESON/PI AT 5 GEV
+Double_t AliGenEMlib::V2Param(const Double_t *px, const Double_t *par)
+{
+ // Very general parametrization of the v2
+
+ const double &pt=px[0];
+ double val=CrossOverLc(par[4],par[3],pt)*(2*par[0]/(1+TMath::Exp(par[1]*(par[2]-pt)))-par[0])+CrossOverRc(par[4],par[3],pt)*((par[8]-par[5])/(1+TMath::Exp(par[6]*(pt-par[7])))+par[5]);
+ double sys=0;
+ if(fgSelectedV2Systematic){
+ double syspt=pt>par[15]?par[15]:pt;
+ sys=fgSelectedV2Systematic*par[11+fgSelectedV2Systematic*2]*pow(syspt,par[12+fgSelectedV2Systematic*2]);
+ }
+ return std::max(val+sys,0.0);
+}
- Double_t normPt = 5.;
- Double_t scaledNormPt = sqrt(normPt*normPt + khm[np]*khm[np] - khm[0]*khm[0]);
- const Double_t kfmax[6]={1., 0.48, 1.0, 0.9, 0.25, 0.4};
+Double_t AliGenEMlib::V2Flat(const Double_t */*px*/, const Double_t */*param*/)
+{
+ // Flat v2
- Double_t norm = kfmax[np] * (PtPizero(&normPt, (Double_t*) 0) / PtPizero(&scaledNormPt, (Double_t*) 0));
+ return 0.0;
+}
- return norm*(pt/scaledPt)*scaledYield;
+Double_t AliGenEMlib::GetTAA(Int_t cent){
+ const static Double_t taa[16] = { 1.0, // pp
+ 26.32, // 0-5
+ 20.56, // 5-10
+ 14.39, // 10-20
+ 8.70, // 20-30
+ 5.001, // 30-40
+ 2.675, // 40-50
+ 1.317, // 50-60
+ 23.44, // 0-10
+ 6.85, // 20-40
+ 1.996, // 40-60
+ 0.4174, // 60-80
+ 18.91, // 0-20
+ 12.88, // 0-40
+ 3.088, // 20-80
+ 1.207}; // 40-80
+ return taa[cent];
}
//==========================================================================
GenFunc AliGenEMlib::GetPt(Int_t param, const char * tname) const
{
-// Return pointer to pT parameterisation
- GenFunc func=0;
- TString sname(tname);
-
- switch (param)
- {
- case kPizero:
- func=PtPizero;
- break;
- case kEta:
- func=PtEta;
- break;
- case kRho:
- func=PtRho;
- break;
- case kOmega:
- func=PtOmega;
- break;
- case kEtaprime:
- func=PtEtaprime;
- break;
- case kPhi:
- func=PtPhi;
- break;
-
- default:
- func=0;
- printf("<AliGenEMlib::GetPt> unknown parametrisation\n");
+ // Return pointer to pT parameterisation
+ GenFunc func=0;
+ TString sname(tname);
+
+ switch (param) {
+ case kDirectRealGamma:
+ func=PtDirectRealGamma;
+ break;
+ case kDirectVirtGamma:
+ func=PtDirectVirtGamma;
+ break;
+ case kPizero:
+ func=PtPizero;
+ break;
+ case kEta:
+ func=PtEta;
+ break;
+ case kRho0:
+ func=PtRho0;
+ break;
+ case kOmega:
+ func=PtOmega;
+ break;
+ case kEtaprime:
+ func=PtEtaprime;
+ break;
+ case kPhi:
+ func=PtPhi;
+ break;
+ case kJpsi:
+ func=PtJpsi;
+ break;
+ case kSigma0:
+ func= PtSigma;
+ break;
+ case kK0s:
+ func= PtK0short;
+ break;
+ case kDeltaPlPl:
+ func= PtDeltaPlPl;
+ break;
+ case kDeltaPl:
+ func= PtDeltaPlPl;
+ break;
+ case kDeltaMi:
+ func= PtDeltaMi;
+ break;
+ case kDeltaZero:
+ func= PtDeltaZero;
+ break;
+ case kRhoPl:
+ func= PtRhoPl;
+ break;
+ case kRhoMi:
+ func= PtRhoMi;
+ break;
+ case kK0star:
+ func= PtK0star;
+ break;
+ default:
+ func=0;
+ printf("<AliGenEMlib::GetPt> unknown parametrisation\n");
}
- return func;
+ return func;
}
GenFunc AliGenEMlib::GetY(Int_t param, const char * tname) const
{
-// Return pointer to y- parameterisation
- GenFunc func=0;
- TString sname(tname);
-
- switch (param)
- {
- case kPizero:
- func=YPizero;
- break;
- case kEta:
- func=YEta;
- break;
- case kRho:
- func=YRho;
- break;
- case kOmega:
- func=YOmega;
- break;
- case kEtaprime:
- func=YEtaprime;
- break;
- case kPhi:
- func=YPhi;
- break;
-
- default:
- func=0;
- printf("<AliGenEMlib::GetY> unknown parametrisation\n");
- }
- return func;
+ // Return pointer to y- parameterisation
+ GenFunc func=0;
+ TString sname(tname);
+
+ switch (param) {
+ case kDirectRealGamma:
+ func=YDirectRealGamma;
+ break;
+ case kDirectVirtGamma:
+ func=YDirectVirtGamma;
+ break;
+ case kPizero:
+ func=YPizero;
+ break;
+ case kEta:
+ func=YEta;
+ break;
+ case kRho0:
+ func=YRho0;
+ break;
+ case kOmega:
+ func=YOmega;
+ break;
+ case kEtaprime:
+ func=YEtaprime;
+ break;
+ case kPhi:
+ func=YPhi;
+ break;
+ case kJpsi:
+ func=YJpsi;
+ break;
+ case kSigma0:
+ func=YSigma;
+ break;
+ case kK0s:
+ func=YK0short;
+ break;
+ case kDeltaPlPl:
+ func=YDeltaPlPl;
+ break;
+ case kDeltaPl:
+ func=YDeltaPl;
+ break;
+ case kDeltaMi:
+ func=YDeltaMi;
+ break;
+ case kDeltaZero:
+ func=YDeltaZero;
+ break;
+ case kRhoPl:
+ func=YRhoPl;
+ break;
+ case kRhoMi:
+ func=YRhoMi;
+ break;
+ case kK0star:
+ func=YK0star;
+ break;
+ default:
+ func=0;
+ printf("<AliGenEMlib::GetY> unknown parametrisation\n");
+ }
+ return func;
}
GenFuncIp AliGenEMlib::GetIp(Int_t param, const char * tname) const
{
-// Return pointer to particle type parameterisation
- GenFuncIp func=0;
- TString sname(tname);
-
- switch (param)
- {
- case kPizero:
- func=IpPizero;
- break;
- case kEta:
- func=IpEta;
- break;
- case kRho:
- func=IpRho;
- break;
- case kOmega:
- func=IpOmega;
- break;
- case kEtaprime:
- func=IpEtaprime;
- break;
- case kPhi:
- func=IpPhi;
- break;
-
- default:
- func=0;
- printf("<AliGenEMlib::GetIp> unknown parametrisation\n");
- }
- return func;
+ // Return pointer to particle type parameterisation
+ GenFuncIp func=0;
+ TString sname(tname);
+
+ switch (param) {
+ case kDirectRealGamma:
+ func=IpDirectRealGamma;
+ break;
+ case kDirectVirtGamma:
+ func=IpDirectVirtGamma;
+ break;
+ case kPizero:
+ func=IpPizero;
+ break;
+ case kEta:
+ func=IpEta;
+ break;
+ case kRho0:
+ func=IpRho0;
+ break;
+ case kOmega:
+ func=IpOmega;
+ break;
+ case kEtaprime:
+ func=IpEtaprime;
+ break;
+ case kPhi:
+ func=IpPhi;
+ break;
+ case kJpsi:
+ func=IpJpsi;
+ break;
+ case kSigma0:
+ func=IpSigma;
+ break;
+ case kK0s:
+ func=IpK0short;
+ break;
+ case kDeltaPlPl:
+ func=IpDeltaPlPl;
+ break;
+ case kDeltaPl:
+ func=IpDeltaPl;
+ break;
+ case kDeltaMi:
+ func=IpDeltaMi;
+ break;
+ case kDeltaZero:
+ func=IpDeltaZero;
+ break;
+ case kRhoPl:
+ func=IpRhoPl;
+ break;
+ case kRhoMi:
+ func=IpRhoMi;
+ break;
+ case kK0star:
+ func=IpK0star;
+ break;
+ default:
+ func=0;
+ printf("<AliGenEMlib::GetIp> unknown parametrisation\n");
+ }
+ return func;
}
-
-
-
-
-
-
-
-
-
-
+GenFunc AliGenEMlib::GetV2(Int_t param, const char * tname) const
+{
+ // Return pointer to v2-parameterisation
+ GenFunc func=0;
+ TString sname(tname);
+
+ switch (param) {
+ case kDirectRealGamma:
+ func=V2DirectRealGamma;
+ break;
+ case kDirectVirtGamma:
+ func=V2DirectVirtGamma;
+ break;
+ case kPizero:
+ func=V2Pizero;
+ break;
+ case kEta:
+ func=V2Eta;
+ break;
+ case kRho0:
+ func=V2Rho0;
+ break;
+ case kOmega:
+ func=V2Omega;
+ break;
+ case kEtaprime:
+ func=V2Etaprime;
+ break;
+ case kPhi:
+ func=V2Phi;
+ break;
+ case kJpsi:
+ func=V2Jpsi;
+ break;
+ case kSigma0:
+ func=V2Sigma0;
+ break;
+ case kK0s:
+ func=V2K0sshort;
+ break;
+ case kDeltaPlPl:
+ func=V2DeltaPlPl;
+ break;
+ case kDeltaPl:
+ func=V2DeltaPl;
+ break;
+ case kDeltaMi:
+ func=V2DeltaMi;
+ break;
+ case kDeltaZero:
+ func=V2DeltaZero;
+ break;
+ case kRhoPl:
+ func=V2RhoPl;
+ break;
+ case kRhoMi:
+ func=V2RhoMi;
+ break;
+ case kK0star:
+ func=V2K0star;
+ break;
+
+ default:
+ func=0;
+ printf("<AliGenEMlib::GetV2> unknown parametrisation\n");
+ }
+ return func;
+}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff