X-Git-Url: http://git.uio.no/git/?a=blobdiff_plain;f=EVGEN%2FAliGenMUONlib.cxx;h=5745e430c74297a9ee2f2ca76db6c2ab6c41a423;hb=3c8efc07dd8dba1b91c79a77d98a612456d00a93;hp=6207544baf69a2b0598c5f53ec3fa697e5b3ccc4;hpb=88e5db438d136a52020afa73aed7ee0fa5d70417;p=u%2Fmrichter%2FAliRoot.git diff --git a/EVGEN/AliGenMUONlib.cxx b/EVGEN/AliGenMUONlib.cxx index 6207544baf6..5745e430c74 100644 --- a/EVGEN/AliGenMUONlib.cxx +++ b/EVGEN/AliGenMUONlib.cxx @@ -32,7 +32,7 @@ ClassImp(AliGenMUONlib) // // Pions -Double_t AliGenMUONlib::PtPion(Double_t *px, Double_t* /*dummy*/) +Double_t AliGenMUONlib::PtPion(const Double_t *px, const Double_t* /*dummy*/) { // // PT-PARAMETERIZATION CDF, PRL 61(88) 1819 @@ -61,7 +61,7 @@ Double_t AliGenMUONlib::PtPion(Double_t *px, Double_t* /*dummy*/) // // y-distribution // -Double_t AliGenMUONlib::YPion( Double_t *py, Double_t */*dummy*/) +Double_t AliGenMUONlib::YPion( const Double_t *py, const Double_t */*dummy*/) { // Pion y Double_t y=TMath::Abs(*py); @@ -97,7 +97,6 @@ Double_t AliGenMUONlib::PtScal(Double_t pt, Int_t np) const Double_t khm[10] = {.13957,.493,.5488,.769,.7826,.958,1.02,0,0,0}; // VALUE MESON/PI AT 5 GEV const Double_t kfmax[10]={1.,0.3,0.55,1.0,1.0,1.0,1.0,0,0,0}; - np--; Double_t f5=TMath::Power(((sqrt(100.018215)+2.)/(sqrt(100.+khm[np]*khm[np])+2.0)),12.3); Double_t fmax2=f5/kfmax[np]; // PIONS @@ -111,15 +110,15 @@ Double_t AliGenMUONlib::PtScal(Double_t pt, Int_t np) // // pt-distribution //____________________________________________________________ -Double_t AliGenMUONlib::PtKaon( Double_t *px, Double_t */*dummy*/) +Double_t AliGenMUONlib::PtKaon( const Double_t *px, const Double_t */*dummy*/) { // Kaon pT - return PtScal(*px,2); + return PtScal(*px,1); } // y-distribution //____________________________________________________________ -Double_t AliGenMUONlib::YKaon( Double_t *py, Double_t */*dummy*/) +Double_t AliGenMUONlib::YKaon( const Double_t *py, const Double_t */*dummy*/) { // Kaon y Double_t y=TMath::Abs(*py); @@ -151,7 +150,7 @@ Int_t AliGenMUONlib::IpKaon(TRandom *ran) // // pt-distribution //____________________________________________________________ -Double_t AliGenMUONlib::PtJpsi( Double_t *px, Double_t */*dummy*/) +Double_t AliGenMUONlib::PtJpsi( const Double_t *px, const Double_t */*dummy*/) { // J/Psi pT const Double_t kpt0 = 4.; @@ -162,7 +161,154 @@ Double_t AliGenMUONlib::PtJpsi( Double_t *px, Double_t */*dummy*/) return x/TMath::Power(pass1,kxn); } -Double_t AliGenMUONlib::PtJpsiPbPb( Double_t *px, Double_t */*dummy*/) +Double_t AliGenMUONlib::PtJpsiCDFscaled( const Double_t *px, const Double_t */*dummy*/) +{ +// J/Psi pT +// +// PbPb 5.5 TeV +// scaled from CDF data at 2 TeV +// see S.Grigoryan, PWG3 Meeting, 27th Oct 2008 + + const Double_t kpt0 = 5.100; + const Double_t kxn = 4.102; + Double_t x=*px; + // + Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); + return x/TMath::Power(pass1,kxn); +} + +Double_t AliGenMUONlib::PtJpsiCDFscaledPP( const Double_t *px, const Double_t */*dummy*/) +{ +// J/Psi pT +// +// pp 14 TeV +// scaled from CDF data at 2 TeV + + const Double_t kpt0 = 5.630; + const Double_t kxn = 4.071; + Double_t x=*px; + // + Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); + return x/TMath::Power(pass1,kxn); +} + +Double_t AliGenMUONlib::PtJpsiCDFscaledPP10( const Double_t *px, const Double_t */*dummy*/) +{ +// J/Psi pT +// +// pp 10 TeV +// scaled from CDF data at 2 TeV + + const Double_t kpt0 = 5.334; + const Double_t kxn = 4.071; + Double_t x=*px; + // + Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); + return x/TMath::Power(pass1,kxn); +} + +Double_t AliGenMUONlib::PtJpsiCDFscaledPP9( const Double_t *px, const Double_t */*dummy*/) +{ +// J/Psi pT +// +// pp 8.8 TeV +// scaled from CDF data at 2 TeV +// + const Double_t kpt0 = 5.245; + const Double_t kxn = 4.071; + Double_t x=*px; + // + Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); + return x/TMath::Power(pass1,kxn); +} + +Double_t AliGenMUONlib::PtJpsiCDFscaledPP7( const Double_t *px, const Double_t */*dummy*/) +{ +// J/Psi pT +// +// pp 7 TeV +// scaled from CDF data at 2 TeV + + const Double_t kpt0 = 5.072; + const Double_t kxn = 4.071; + Double_t x=*px; + // + Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); + return x/TMath::Power(pass1,kxn); +} + +Double_t AliGenMUONlib::PtJpsiCDFscaledPP4( const Double_t *px, const Double_t */*dummy*/) +{ +// J/Psi pT +// +// pp 3.94 TeV +// scaled from CDF data at 2 TeV +// + const Double_t kpt0 = 4.647; + const Double_t kxn = 4.071; + Double_t x=*px; + // + Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); + return x/TMath::Power(pass1,kxn); +} + +Double_t AliGenMUONlib::PtJpsiCDFscaledPPb9( const Double_t *px, const Double_t *dummy) +{ +// J/Psi pT +// +// pPb 8.8 TeV, for EKS98 with minimum bias shadowing factor 0.80 +// + Double_t c[5] = {6.42774e-01, 1.86168e-02, -6.77296e-04, 8.93512e-06, 1.31586e-07}; + Double_t x=*px; + Double_t y; + Int_t j; + y = c[j = 4]; + while (j > 0) y = y * x + c[--j]; + // + Double_t d = 1.+c[4]*TMath::Power(x,4); + return y/d * AliGenMUONlib::PtJpsiCDFscaledPP9(px,dummy); +} + +Double_t AliGenMUONlib::PtJpsiCDFscaledPbP9( const Double_t *px, const Double_t *dummy) +{ +// J/Psi pT +// +// Pbp 8.8 TeV, for EKS98 with minimum bias shadowing factor 0.80 +// + Double_t c[5] = {8.58557e-01, 5.39791e-02, -4.75180e-03, 2.49463e-04, 5.52396e-05}; + Double_t x=*px; + Double_t y; + Int_t j; + y = c[j = 4]; + while (j > 0) y = y * x + c[--j]; + // + Double_t d = 1.+c[4]*TMath::Power(x,4); + return y/d * AliGenMUONlib::PtJpsiCDFscaledPP9(px,dummy); +} + +Double_t AliGenMUONlib::PtJpsiCDFscaledPbPb4( const Double_t *px, const Double_t *dummy) +{ +// J/Psi pT +// +// PbPb 3.94 TeV, for EKS98 with minimum bias shadowing factor 0.66 +// + Double_t c[5] = {6.01022e-01, 4.70988e-02, -2.27917e-03, 3.09885e-05, 1.31955e-06}; + Double_t x=*px; + Double_t y; + Int_t j; + y = c[j = 4]; + while (j > 0) y = y * x + c[--j]; + // + Double_t d = 1.+c[4]*TMath::Power(x,4); + return y/d * AliGenMUONlib::PtJpsiCDFscaledPP4(px,dummy); +} + +Double_t AliGenMUONlib::PtJpsiFlat( const Double_t */*px*/, const Double_t */*dummy*/ ) +{ + return 1.; +} + +Double_t AliGenMUONlib::PtJpsiPbPb( const Double_t *px, const Double_t */*dummy*/) { // J/Psi pT spectrum // @@ -189,7 +335,7 @@ Double_t AliGenMUONlib::PtJpsiPbPb( Double_t *px, Double_t */*dummy*/) return y; } -Double_t AliGenMUONlib::PtJpsiBPbPb( Double_t *px, Double_t */*dummy*/) +Double_t AliGenMUONlib::PtJpsiBPbPb( const Double_t *px, const Double_t */*dummy*/) { // J/Psi pT spectrum // B -> J/Psi X @@ -203,7 +349,7 @@ Double_t AliGenMUONlib::PtJpsiBPbPb( Double_t *px, Double_t */*dummy*/) } -Double_t AliGenMUONlib::PtJpsiPP( Double_t *px, Double_t */*dummy*/) +Double_t AliGenMUONlib::PtJpsiPP( const Double_t *px, const Double_t */*dummy*/) { // J/Psi pT spectrum // @@ -230,7 +376,7 @@ Double_t AliGenMUONlib::PtJpsiPP( Double_t *px, Double_t */*dummy*/) // // y-distribution //____________________________________________________________ -Double_t AliGenMUONlib::YJpsi(Double_t *py, Double_t */*dummy*/) +Double_t AliGenMUONlib::YJpsi(const Double_t *py, const Double_t */*dummy*/) { // J/psi y const Double_t ky0 = 4.; @@ -245,8 +391,13 @@ Double_t AliGenMUONlib::YJpsi(Double_t *py, Double_t */*dummy*/) return yj; } +Double_t AliGenMUONlib::YJpsiFlat( const Double_t */*py*/, const Double_t */*dummy*/ ) +{ + return 1.; +} + -Double_t AliGenMUONlib::YJpsiPbPb( Double_t *px, Double_t */*dummy*/) +Double_t AliGenMUONlib::YJpsiPbPb( const Double_t *px, const Double_t */*dummy*/) { // @@ -275,7 +426,133 @@ Double_t AliGenMUONlib::YJpsiPbPb( Double_t *px, Double_t */*dummy*/) return y; } -Double_t AliGenMUONlib::YJpsiPP( Double_t *px, Double_t */*dummy*/) +Double_t AliGenMUONlib::YJpsiCDFscaled( const Double_t *px, const Double_t* dummy) +{ + // J/Psi y + return AliGenMUONlib::YJpsiPbPb(px, dummy); +} + +Double_t AliGenMUONlib::YJpsiCDFscaledPP( const Double_t *px, const Double_t* dummy) +{ + // J/Psi y + return AliGenMUONlib::YJpsiPP(px, dummy); +} + +Double_t AliGenMUONlib::YJpsiCDFscaledPP10( const Double_t *px, const Double_t */*dummy*/) +{ +// J/Psi y +// +// pp 10 TeV +// scaled from YJpsiPP(14 TeV) using 10 TeV / 14 TeV ratio of y-spectra in LO pQCD. +// see S.Grigoryan, PWG3 Meeting, 27th Oct 2008 +// + + Double_t c[5] = {2.46681e+01, 8.91486e+01, -3.21227e+01, 3.63075e+00, -1.32047e-01}; + + Double_t x = TMath::Abs(px[0]); + Double_t y; + + if (x < 3.2) { + y = 98.523 - 1.3664 * x * x; + } else if (x < 7.5) { + Int_t j; + y = c[j = 4]; + while (j > 0) y = y * x + c[--j]; + } else { + y =0.; + } + + if(y<0) y=0; + + return y; +} + +Double_t AliGenMUONlib::YJpsiCDFscaledPP9( const Double_t *px, const Double_t */*dummy*/) +{ +// J/Psi y +// +// pp 8.8 TeV +// rescaling of YJpsiPP(14 TeV) using 8.8 TeV / 14 TeV ratio of y-spectra in LO QCD +// + Double_t c[5] = {3.33882e+02, -1.30980e+02, 2.59082e+01, -3.08935e+00, 1.56375e-01}; + Double_t x = TMath::Abs(px[0]); + Double_t y; + + if (x < 3.7) { + y = 99.236 - 1.5498 * x * x; + } else if (x < 7.4) { + Int_t j; + y = c[j = 4]; + while (j > 0) y = y * x + c[--j]; + } else { + y =0.; + } + + if(y<0) y=0; + + return y; +} + +Double_t AliGenMUONlib::YJpsiCDFscaledPP9dummy(Double_t px) +{ + return AliGenMUONlib::YJpsiCDFscaledPP9(&px, (Double_t*) 0); +} + +Double_t AliGenMUONlib::YJpsiCDFscaledPP7( const Double_t *px, const Double_t */*dummy*/) +{ +// J/Psi y +// +// pp 7 TeV +// scaled from YJpsiPP(14 TeV) using 7 TeV / 14 TeV ratio of y-spectra in LO pQCD. +// + + Double_t c[5] = {6.71181e+02, -3.69240e+02, 8.89644e+01, -1.04937e+01, 4.80959e-01}; + + Double_t x = TMath::Abs(px[0]); + Double_t y; + + if (x < 4.0) { + y = 100.78 - 1.8353 * x * x; + } else if (x < 7.3) { + Int_t j; + y = c[j = 4]; + while (j > 0) y = y * x + c[--j]; + } else { + y =0.; + } + + if(y<0) y=0; + + return y; +} + +Double_t AliGenMUONlib::YJpsiCDFscaledPP4( const Double_t *px, const Double_t */*dummy*/) +{ +// J/Psi y +// +// pp 3.94 TeV +// rescaling of YJpsiPP(14 TeV) using 3.94 TeV / 14 TeV ratio of y-spectra in LO QCD +// + Double_t c[5] = {4.00785e+02, -1.41159e+01, -3.28599e+01, 5.53048e+00, -2.45151e-01}; + Double_t x = TMath::Abs(px[0]); + Double_t y; + + if (x < 5.5) { + y = 107.389 - 2.7454 * x * x; + } else if (x < 7.0) { + Int_t j; + y = c[j = 4]; + while (j > 0) y = y * x + c[--j]; + } else { + y =0.; + } + + if(y<0) y=0; + + return y; +} + +Double_t AliGenMUONlib::YJpsiPP( const Double_t *px, const Double_t */*dummy*/) { // @@ -305,7 +582,60 @@ Double_t AliGenMUONlib::YJpsiPP( Double_t *px, Double_t */*dummy*/) return y; } -Double_t AliGenMUONlib::YJpsiBPbPb( Double_t *px, Double_t */*dummy*/) +Double_t AliGenMUONlib::YJpsiCDFscaledPPb9( const Double_t *px, const Double_t */*dummy*/) +{ +// J/Psi y +// +// pPb 8.8 TeV, for EKS98 with minimum bias shadowing factor 0.80 +// + Double_t c[7] = {7.52296e-01, 2.49917e-02, 3.36500e-03, 1.91187e-03, 2.92154e-04, + -4.16509e-05,-7.62709e-06}; + Double_t y; + Double_t x = px[0] + 0.47; // rapidity shift + Int_t j; + y = c[j = 6]; + while (j > 0) y = y * x + c[--j]; + if(y<0) y=0; + + return y * AliGenMUONlib::YJpsiCDFscaledPP9dummy(x); +} + +Double_t AliGenMUONlib::YJpsiCDFscaledPbP9( const Double_t *px, const Double_t */*dummy*/) +{ +// J/Psi y +// +// Pbp 8.8 TeV, for EKS98 with minimum bias shadowing factor 0.80 +// + Double_t c[7] = {7.52296e-01, 2.49917e-02, 3.36500e-03, 1.91187e-03, 2.92154e-04, + -4.16509e-05,-7.62709e-06}; + Double_t y; + Double_t x = -px[0] + 0.47; // rapidity shift + Int_t j; + y = c[j = 6]; + while (j > 0) y = y * x + c[--j]; + if(y<0) y=0; + + return y * AliGenMUONlib::YJpsiCDFscaledPP9dummy(x); +} + +Double_t AliGenMUONlib::YJpsiCDFscaledPbPb4( const Double_t *px, const Double_t *dummy) +{ +// J/Psi y +// +// PbPb 3.94 TeV, for EKS98 with minimum bias shadowing factor 0.66 +// + Double_t c[4] = {5.95228e-01, 9.45069e-03, 2.44710e-04, -1.32894e-05}; + Double_t x = px[0]*px[0]; + Double_t y; + Int_t j; + y = c[j = 3]; + while (j > 0) y = y * x + c[--j]; + if(y<0) y=0; + + return y * AliGenMUONlib::YJpsiCDFscaledPP4(px,dummy); +} + +Double_t AliGenMUONlib::YJpsiBPbPb( const Double_t *px, const Double_t */*dummy*/) { // @@ -364,7 +694,7 @@ Int_t AliGenMUONlib::IpJpsiFamily(TRandom *) // // pt-distribution //____________________________________________________________ -Double_t AliGenMUONlib::PtUpsilon( Double_t *px, Double_t */*dummy*/ ) +Double_t AliGenMUONlib::PtUpsilon( const Double_t *px, const Double_t */*dummy*/ ) { // Upsilon pT const Double_t kpt0 = 5.3; @@ -375,68 +705,211 @@ Double_t AliGenMUONlib::PtUpsilon( Double_t *px, Double_t */*dummy*/ ) return x/TMath::Power(pass1,kxn); } -Double_t AliGenMUONlib::PtUpsilonPbPb( Double_t *px, Double_t */*dummy*/) +Double_t AliGenMUONlib::PtUpsilonCDFscaled( const Double_t *px, const Double_t */*dummy*/ ) { +// Upsilon pT + const Double_t kpt0 = 7.753; + const Double_t kxn = 3.042; + Double_t x=*px; + // + Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); + return x/TMath::Power(pass1,kxn); +} -// +Double_t AliGenMUONlib::PtUpsilonCDFscaledPP( const Double_t *px, const Double_t */*dummy*/ ) +{ // Upsilon pT // +// pp 14 TeV // -// R. Vogt 2002 -// PbPb 5.5 TeV -// MRST HO -// mc = 1.4 GeV, pt-kick 1 GeV -// - Float_t x = px[0]; - Double_t c[8] = { - -1.03488e+01, 1.28065e+01, -6.60500e+00, 1.66140e+00, - -2.34293e-01, 1.86925e-02, -7.80708e-04, 1.30610e-05 - }; - Double_t y; - if (x < 10.) { - Int_t j; - y = c[j = 7]; - while (j > 0) y = y * x +c[--j]; - y = x * TMath::Exp(y); - } else { - y = 0.; - } - return y; +// scaled from CDF data at 2 TeV + + const Double_t kpt0 = 8.610; + const Double_t kxn = 3.051; + Double_t x=*px; + // + Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); + return x/TMath::Power(pass1,kxn); } -Double_t AliGenMUONlib::PtUpsilonPP( Double_t *px, Double_t */*dummy*/) +Double_t AliGenMUONlib::PtUpsilonCDFscaledPP10( const Double_t *px, const Double_t */*dummy*/) { - -// // Upsilon pT // +// pp 10 TeV // -// R. Vogt 2002 -// pp 14 TeV -// MRST HO -// mc = 1.4 GeV, pt-kick 1 GeV -// - Float_t x = px[0]; - Double_t c[8] = {-7.93955e+00, 1.06306e+01, -5.21392e+00, 1.19703e+00, - -1.45718e-01, 8.95151e-03, -2.04806e-04, -1.13053e-06}; - - Double_t y; - if (x < 10.) { - Int_t j; - y = c[j = 7]; - while (j > 0) y = y * x +c[--j]; - y = x * TMath::Exp(y); - } else { - y = 0.; - } - return y; +// scaled from CDF data at 2 TeV + + const Double_t kpt0 = 8.235; + const Double_t kxn = 3.051; + Double_t x=*px; + // + Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); + return x/TMath::Power(pass1,kxn); +} + +Double_t AliGenMUONlib::PtUpsilonCDFscaledPP9( const Double_t *px, const Double_t */*dummy*/) +{ +// Upsilon pT +// +// pp 8.8 TeV +// scaled from CDF data at 2 TeV +// + const Double_t kpt0 = 8.048; + const Double_t kxn = 3.051; + Double_t x=*px; + // + Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); + return x/TMath::Power(pass1,kxn); +} + +Double_t AliGenMUONlib::PtUpsilonCDFscaledPP7( const Double_t *px, const Double_t */*dummy*/) +{ +// Upsilon pT +// +// pp 7 TeV +// +// scaled from CDF data at 2 TeV + + const Double_t kpt0 = 7.817; + const Double_t kxn = 3.051; + Double_t x=*px; + // + Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); + return x/TMath::Power(pass1,kxn); +} + +Double_t AliGenMUONlib::PtUpsilonCDFscaledPP4( const Double_t *px, const Double_t */*dummy*/) +{ +// Upsilon pT +// +// pp 3.94 TeV +// scaled from CDF data at 2 TeV +// + const Double_t kpt0 = 7.189; + const Double_t kxn = 3.051; + Double_t x=*px; + // + Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); + return x/TMath::Power(pass1,kxn); +} + +Double_t AliGenMUONlib::PtUpsilonCDFscaledPPb9( const Double_t *px, const Double_t *dummy) +{ +// Upsilon pT +// +// pPb 8.8 TeV, for EKS98 with minimum bias shadowing factor 0.90 +// + Double_t c[5] = {7.64952e-01, 1.12501e-04, 4.96038e-04, -3.03198e-05, 3.74035e-06}; + Double_t x=*px; + Double_t y; + Int_t j; + y = c[j = 4]; + while (j > 0) y = y * x + c[--j]; + // + Double_t d = 1.+c[4]*TMath::Power(x,4); + return y/d * AliGenMUONlib::PtUpsilonCDFscaledPP9(px,dummy); +} + +Double_t AliGenMUONlib::PtUpsilonCDFscaledPbP9( const Double_t *px, const Double_t *dummy) +{ +// Upsilon pT +// +// Pbp 8.8 TeV, for EKS98 with minimum bias shadowing factor 0.90 +// + Double_t c[5] = {1.09881e+00, 3.08329e-03, -2.00356e-04, 8.28991e-06, 2.52576e-06}; + Double_t x=*px; + Double_t y; + Int_t j; + y = c[j = 4]; + while (j > 0) y = y * x + c[--j]; + // + Double_t d = 1.+c[4]*TMath::Power(x,4); + return y/d * AliGenMUONlib::PtUpsilonCDFscaledPP9(px,dummy); +} + +Double_t AliGenMUONlib::PtUpsilonCDFscaledPbPb4( const Double_t *px, const Double_t *dummy) +{ +// Upsilon pT +// +// PbPb 3.94 TeV, for EKS98 with minimum bias shadowing factor 0.85 +// + Double_t c[5] = {8.65872e-01, 2.05465e-03, 2.56063e-04, -1.65598e-05, 2.29209e-06}; + Double_t x=*px; + Double_t y; + Int_t j; + y = c[j = 4]; + while (j > 0) y = y * x + c[--j]; + // + Double_t d = 1.+c[4]*TMath::Power(x,4); + return y/d * AliGenMUONlib::PtUpsilonCDFscaledPP4(px,dummy); +} + +Double_t AliGenMUONlib::PtUpsilonFlat( const Double_t */*px*/, const Double_t */*dummy*/ ) +{ + return 1.; +} + +Double_t AliGenMUONlib::PtUpsilonPbPb( const Double_t *px, const Double_t */*dummy*/) +{ +// +// Upsilon pT +// +// +// R. Vogt 2002 +// PbPb 5.5 TeV +// MRST HO +// mc = 1.4 GeV, pt-kick 1 GeV +// + Float_t x = px[0]; + Double_t c[8] = { + -1.03488e+01, 1.28065e+01, -6.60500e+00, 1.66140e+00, + -2.34293e-01, 1.86925e-02, -7.80708e-04, 1.30610e-05 + }; + Double_t y; + if (x < 10.) { + Int_t j; + y = c[j = 7]; + while (j > 0) y = y * x +c[--j]; + y = x * TMath::Exp(y); + } else { + y = 0.; + } + return y; +} + +Double_t AliGenMUONlib::PtUpsilonPP( const Double_t *px, const Double_t */*dummy*/) +{ +// +// Upsilon pT +// +// +// R. Vogt 2002 +// pp 14 TeV +// MRST HO +// mc = 1.4 GeV, pt-kick 1 GeV +// + Float_t x = px[0]; + Double_t c[8] = {-7.93955e+00, 1.06306e+01, -5.21392e+00, 1.19703e+00, + -1.45718e-01, 8.95151e-03, -2.04806e-04, -1.13053e-06}; + + Double_t y; + if (x < 10.) { + Int_t j; + y = c[j = 7]; + while (j > 0) y = y * x +c[--j]; + y = x * TMath::Exp(y); + } else { + y = 0.; + } + return y; } // // y-distribution // //____________________________________________________________ -Double_t AliGenMUONlib::YUpsilon(Double_t *py, Double_t */*dummy*/) +Double_t AliGenMUONlib::YUpsilon(const Double_t *py, const Double_t */*dummy*/) { // Upsilon y const Double_t ky0 = 3.; @@ -452,7 +925,7 @@ Double_t AliGenMUONlib::YUpsilon(Double_t *py, Double_t */*dummy*/) } -Double_t AliGenMUONlib::YUpsilonPbPb( Double_t *px, Double_t */*dummy*/) +Double_t AliGenMUONlib::YUpsilonPbPb( const Double_t *px, const Double_t */*dummy*/) { // @@ -467,16 +940,107 @@ Double_t AliGenMUONlib::YUpsilonPbPb( Double_t *px, Double_t */*dummy*/) Double_t c[7] = {3.40036e-01, -3.98882e-07, -4.48398e-03, 8.46411e-08, -6.10854e-04, -2.99753e-09, 1.28895e-05}; - - Double_t x = px[0]; - if (TMath::Abs(x) > 5.55) return 0.; + Double_t x = TMath::Abs(px[0]); + if (x > 5.55) return 0.; Int_t j; Double_t y = c[j = 6]; while (j > 0) y = y * x +c[--j]; return y; } -Double_t AliGenMUONlib::YUpsilonPP( Double_t *px, Double_t */*dummy*/) +Double_t AliGenMUONlib::YUpsilonCDFscaled( const Double_t *px, const Double_t *dummy) +{ + // Upsilon y + return AliGenMUONlib::YUpsilonPbPb(px, dummy); + +} + +Double_t AliGenMUONlib::YUpsilonCDFscaledPP( const Double_t *px, const Double_t *dummy) +{ + // Upsilon y + return AliGenMUONlib::YUpsilonPP(px, dummy); + +} + +Double_t AliGenMUONlib::YUpsilonFlat( const Double_t */*px*/, const Double_t */*dummy*/) +{ + // Upsilon y + return 1.; + +} + +Double_t AliGenMUONlib::YUpsilonCDFscaledPP10( const Double_t *px, const Double_t */*dummy*/) +{ +// Upsilon y +// +// pp 10 TeV +// scaled from YUpsilonPP(14 TeV) using 10 TeV / 14 TeV ratio of y-spectra in LO pQCD. +// see S.Grigoryan, PWG3 Meeting, 27th Oct 2008 +// + Double_t c[4] = {1., -2.17877e-02, -6.52830e-04, 1.40578e-05}; + Double_t x = TMath::Abs(px[0]); + if (x > 6.1) return 0.; + Int_t j; + Double_t y = c[j = 3]; + while (j > 0) y = y * x*x +c[--j]; + return y; +} + +Double_t AliGenMUONlib::YUpsilonCDFscaledPP9( const Double_t *px, const Double_t */*dummy*/) +{ +// Upsilon y +// +// pp 8.8 TeV +// rescaling of YUpsilonPP(14 TeV) using 8.8 TeV / 14 TeV ratio of y-spectra in LO QCD +// + Double_t c[4] = {1., -2.37621e-02, -6.29610e-04, 1.47976e-05}; + Double_t x = TMath::Abs(px[0]); + if (x > 6.1) return 0.; + Int_t j; + Double_t y = c[j = 3]; + while (j > 0) y = y * x*x +c[--j]; + return y; +} + +Double_t AliGenMUONlib::YUpsilonCDFscaledPP9dummy(Double_t px) +{ + return AliGenMUONlib::YUpsilonCDFscaledPP9(&px, (Double_t*) 0); +} + +Double_t AliGenMUONlib::YUpsilonCDFscaledPP7( const Double_t *px, const Double_t */*dummy*/) +{ +// Upsilon y +// +// pp 7 TeV +// scaled from YUpsilonPP(14 TeV) using 7 TeV / 14 TeV ratio of y-spectra in LO pQCD. +// + Double_t c[4] = {1., -2.61009e-02, -6.83937e-04, 1.78451e-05}; + Double_t x = TMath::Abs(px[0]); + if (x > 6.0) return 0.; + Int_t j; + Double_t y = c[j = 3]; + while (j > 0) y = y * x*x +c[--j]; + return y; +} + +Double_t AliGenMUONlib::YUpsilonCDFscaledPP4( const Double_t *px, const Double_t */*dummy*/) +{ +// Upsilon y +// +// pp 3.94 TeV +// rescaling of YUpsilonPP(14 TeV) using 3.94 TeV / 14 TeV ratio of y-spectra in LO QCD +// + Double_t c[4] = {1., -3.91924e-02, -4.26184e-04, 2.10914e-05}; + Double_t x = TMath::Abs(px[0]); + if (x > 5.7) return 0.; + Int_t j; + Double_t y = c[j = 3]; + while (j > 0) y = y * x*x +c[--j]; + + return y; +} + +Double_t AliGenMUONlib::YUpsilonPP( const Double_t *px, const Double_t */*dummy*/) { // @@ -490,15 +1054,68 @@ Double_t AliGenMUONlib::YUpsilonPP( Double_t *px, Double_t */*dummy*/) // Double_t c[7] = {8.91936e-01, -6.46645e-07, -1.52774e-02, 4.28677e-08, -7.01517e-04, -6.20539e-10, 1.29943e-05}; - - Double_t x = px[0]; - if (TMath::Abs(x) > 6.2) return 0.; + Double_t x = TMath::Abs(px[0]); + if (x > 6.2) return 0.; Int_t j; Double_t y = c[j = 6]; while (j > 0) y = y * x +c[--j]; return y; } +Double_t AliGenMUONlib::YUpsilonCDFscaledPPb9( const Double_t *px, const Double_t */*dummy*/) +{ +// Upsilon y +// +// pPb 8.8 TeV, for EKS98 with minimum bias shadowing factor 0.90 +// + Double_t c[7] = {8.71829e-01, 4.77467e-02, 8.09671e-03, 6.45294e-04, -2.15730e-04, + -4.67538e-05,-2.11683e-06}; + Double_t y; + Double_t x = px[0] + 0.47; // rapidity shift + Int_t j; + y = c[j = 6]; + while (j > 0) y = y * x + c[--j]; + if(y<0) y=0; + + return y * AliGenMUONlib::YUpsilonCDFscaledPP9dummy(x); +} + +Double_t AliGenMUONlib::YUpsilonCDFscaledPbP9( const Double_t *px, const Double_t */*dummy*/) +{ +// Upsilon y +// +// Pbp 8.8 TeV, for EKS98 with minimum bias shadowing factor 0.90 +// + Double_t c[7] = {8.71829e-01, 4.77467e-02, 8.09671e-03, 6.45294e-04, -2.15730e-04, + -4.67538e-05,-2.11683e-06}; + Double_t y; + Double_t x = -px[0] + 0.47; // rapidity shift + Int_t j; + y = c[j = 6]; + while (j > 0) y = y * x + c[--j]; + if(y<0) y=0; + + return y * AliGenMUONlib::YUpsilonCDFscaledPP9dummy(x); +} + +Double_t AliGenMUONlib::YUpsilonCDFscaledPbPb4( const Double_t *px, const Double_t *dummy) +{ +// Upsilon y +// +// PbPb 3.94 TeV, for EKS98 with minimum bias shadowing factor 0.85 +// + Double_t c[4] = {8.27837e-01, 1.70115e-02, -1.26046e-03, 1.52091e-05}; + Double_t x = px[0]*px[0]; + Double_t y; + Int_t j; + y = c[j = 3]; + while (j > 0) y = y * x + c[--j]; + if(y<0) y=0; + + return y * AliGenMUONlib::YUpsilonCDFscaledPP4(px,dummy); +} + + // particle composition // Int_t AliGenMUONlib::IpUpsilon(TRandom *) @@ -539,13 +1156,13 @@ Int_t AliGenMUONlib::IpUpsilonFamily(TRandom *) // // pt-distribution (by scaling of pion distribution) //____________________________________________________________ -Double_t AliGenMUONlib::PtPhi( Double_t *px, Double_t */*dummy*/) +Double_t AliGenMUONlib::PtPhi( const Double_t *px, const Double_t */*dummy*/) { // Phi pT - return PtScal(*px,7); + return PtScal(*px,6); } // y-distribution -Double_t AliGenMUONlib::YPhi( Double_t *px, Double_t */*dummy*/) +Double_t AliGenMUONlib::YPhi( const Double_t *px, const Double_t */*dummy*/) { // Phi y Double_t *dum=0; @@ -565,122 +1182,906 @@ Int_t AliGenMUONlib::IpPhi(TRandom *) // // pt-distribution (by scaling of pion distribution) //____________________________________________________________ -Double_t AliGenMUONlib::PtOmega( Double_t *px, Double_t */*dummy*/) +Double_t AliGenMUONlib::PtOmega( const Double_t *px, const Double_t */*dummy*/) { // Omega pT - return PtScal(*px,5); + return PtScal(*px,4); +} +// y-distribution +Double_t AliGenMUONlib::YOmega( const Double_t *px, const Double_t */*dummy*/) +{ +// Omega y + Double_t *dum=0; + return YJpsi(px,dum); +} +// particle composition +// +Int_t AliGenMUONlib::IpOmega(TRandom *) +{ +// Omega composition + return 223; +} + + +// +// Eta +// +// +// pt-distribution (by scaling of pion distribution) +//____________________________________________________________ +Double_t AliGenMUONlib::PtEta( const Double_t *px, const Double_t */*dummy*/) +{ +// Eta pT + return PtScal(*px,2); +} +// y-distribution +Double_t AliGenMUONlib::YEta( const Double_t *px, const Double_t */*dummy*/) +{ +// Eta y + Double_t *dum=0; + return YJpsi(px,dum); +} +// particle composition +// +Int_t AliGenMUONlib::IpEta(TRandom *) +{ +// Eta composition + return 221; +} + +// +// Charm +// +// +// pt-distribution +//____________________________________________________________ +Double_t AliGenMUONlib::PtCharm( const Double_t *px, const Double_t */*dummy*/) +{ +// Charm pT + const Double_t kpt0 = 2.25; + const Double_t kxn = 3.17; + Double_t x=*px; + // + Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); + return x/TMath::Power(pass1,kxn); +} + +Double_t AliGenMUONlib::PtCharmCentral( const Double_t *px, const Double_t */*dummy*/) +{ +// Charm pT + const Double_t kpt0 = 2.12; + const Double_t kxn = 2.78; + Double_t x=*px; + // + Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); + return x/TMath::Power(pass1,kxn); +} +Double_t AliGenMUONlib::PtCharmF0M0S0PP( const Double_t *px, const Double_t */*dummy*/) +{ +// FiMjSkPP define theoretical uncertainties around F0M0S0PP as follows: +// PtCharmFiMjSkPP = PtCharmF0M0S0PP * (dN(i,j,k)/dpt / dN(0,0,0)/dpt)_MNR +// i=0,1,2; j=0,1,2; k=0,1,...,6 +// dN(i,j,k)/dpt - spectra obtained by A.Dainese (hep-ph/0601164, p.88; +// http://www-zeus.desy.de/~corradi/benchmarks) from NLO pQCD (MNR) +// calculations for the following inputs: +// Peterson fragmentation function (F) with \epsilon_c = 0.02, 0.002 & 0.11 +// for i=0,1 & 2 respectively; quark mass (M) of 1.5, 1.3 & 1.7 GeV +// for j=0,1 & 2 respectively; +// factorisation \mu_F = a*mt and renormalisation \mu_R = b*mt scales (S) +// with a/b = 1/1, 1/0.5, 0.5/1, 0.5/0.5, 1/2, 2/1 & 2/2 +// for k = 0, 1, 2, 3, 4, 5 & 6 respectively; CTEQ6.1 PDF set +// (PDF uncertainty not considered since is small, see hep-ph/0601164, p.89). +// June 2008, Smbat.Grigoryan@cern.ch + +// Charm pT +// Pythia6.214 (kCharmppMNRwmi, PDF = CTEQ5L, quark mass = 1.2 GeV, PtHard > 2.76 GeV/c) +// for pp collisions at 14 TeV with one c-cbar pair per event. +// Corresponding NLO total cross section is 5.68 mb + + + const Double_t kpt0 = 2.2930; + const Double_t kxn = 3.1196; + Double_t c[3]={-5.2180e-01,1.8753e-01,2.8669e-02}; + Double_t x=*px; + // + Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); + return x/TMath::Power(pass1,kxn)*(1.+c[0]*x+c[1]*x*x)/(1.+c[2]*x*x); +} +Double_t AliGenMUONlib::PtCharmF1M0S0PP( const Double_t *px, const Double_t */*dummy*/) +{ +// Charm pT +// Corresponding NLO total cross section is 6.06 mb + const Double_t kpt0 = 2.8669; + const Double_t kxn = 3.1044; + Double_t c[3]={-4.6714e-01,1.5005e-01,4.5003e-02}; + Double_t x=*px; + // + Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); + return x/TMath::Power(pass1,kxn)*(1.+c[0]*x+c[1]*x*x)/(1.+c[2]*x*x); +} +Double_t AliGenMUONlib::PtCharmF2M0S0PP( const Double_t *px, const Double_t */*dummy*/) +{ +// Charm pT +// Corresponding NLO total cross section is 6.06 mb + const Double_t kpt0 = 1.8361; + const Double_t kxn = 3.2966; + Double_t c[3]={-6.1550e-01,2.6498e-01,1.0728e-02}; + Double_t x=*px; + // + Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); + return x/TMath::Power(pass1,kxn)*(1.+c[0]*x+c[1]*x*x)/(1.+c[2]*x*x); +} +Double_t AliGenMUONlib::PtCharmF0M1S0PP( const Double_t *px, const Double_t */*dummy*/) +{ +// Charm pT +// Corresponding NLO total cross section is 7.69 mb + const Double_t kpt0 = 2.1280; + const Double_t kxn = 3.1397; + Double_t c[3]={-5.4021e-01,2.0944e-01,2.5211e-02}; + Double_t x=*px; + // + Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); + return x/TMath::Power(pass1,kxn)*(1.+c[0]*x+c[1]*x*x)/(1.+c[2]*x*x); +} +Double_t AliGenMUONlib::PtCharmF0M2S0PP( const Double_t *px, const Double_t */*dummy*/) +{ +// Charm pT +// Corresponding NLO total cross section is 4.81 mb + const Double_t kpt0 = 2.4579; + const Double_t kxn = 3.1095; + Double_t c[3]={-5.1497e-01,1.7532e-01,3.2429e-02}; + Double_t x=*px; + // + Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); + return x/TMath::Power(pass1,kxn)*(1.+c[0]*x+c[1]*x*x)/(1.+c[2]*x*x); +} +Double_t AliGenMUONlib::PtCharmF0M0S1PP( const Double_t *px, const Double_t */*dummy*/) +{ +// Charm pT +// Corresponding NLO total cross section is 14.09 mb + const Double_t kpt0 = 2.1272; + const Double_t kxn = 3.1904; + Double_t c[3]={-4.6088e-01,2.1918e-01,2.3055e-02}; + Double_t x=*px; + // + Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); + return x/TMath::Power(pass1,kxn)*(1.+c[0]*x+c[1]*x*x)/(1.+c[2]*x*x); +} +Double_t AliGenMUONlib::PtCharmF0M0S2PP( const Double_t *px, const Double_t */*dummy*/) +{ +// Charm pT +// Corresponding NLO total cross section is 1.52 mb + const Double_t kpt0 = 2.8159; + const Double_t kxn = 3.0857; + Double_t c[3]={-6.4691e-01,2.0289e-01,2.4922e-02}; + Double_t x=*px; + // + Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); + return x/TMath::Power(pass1,kxn)*(1.+c[0]*x+c[1]*x*x)/(1.+c[2]*x*x); +} +Double_t AliGenMUONlib::PtCharmF0M0S3PP( const Double_t *px, const Double_t */*dummy*/) +{ +// Charm pT +// Corresponding NLO total cross section is 3.67 mb + const Double_t kpt0 = 2.7297; + const Double_t kxn = 3.3019; + Double_t c[3]={-6.2216e-01,1.9031e-01,1.5341e-02}; + Double_t x=*px; + // + Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); + return x/TMath::Power(pass1,kxn)*(1.+c[0]*x+c[1]*x*x)/(1.+c[2]*x*x); +} +Double_t AliGenMUONlib::PtCharmF0M0S4PP( const Double_t *px, const Double_t */*dummy*/) +{ +// Charm pT +// Corresponding NLO total cross section is 3.38 mb + const Double_t kpt0 = 2.3894; + const Double_t kxn = 3.1075; + Double_t c[3]={-4.9742e-01,1.7032e-01,2.5994e-02}; + Double_t x=*px; + // + Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); + return x/TMath::Power(pass1,kxn)*(1.+c[0]*x+c[1]*x*x)/(1.+c[2]*x*x); +} +Double_t AliGenMUONlib::PtCharmF0M0S5PP( const Double_t *px, const Double_t */*dummy*/) +{ +// Charm pT +// Corresponding NLO total cross section is 10.37 mb + const Double_t kpt0 = 2.0187; + const Double_t kxn = 3.3011; + Double_t c[3]={-3.9869e-01,2.9248e-01,1.1763e-02}; + Double_t x=*px; + // + Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); + return x/TMath::Power(pass1,kxn)*(1.+c[0]*x+c[1]*x*x)/(1.+c[2]*x*x); +} +Double_t AliGenMUONlib::PtCharmF0M0S6PP( const Double_t *px, const Double_t */*dummy*/) +{ +// Charm pT +// Corresponding NLO total cross section is 7.22 mb + const Double_t kpt0 = 2.1089; + const Double_t kxn = 3.1848; + Double_t c[3]={-4.6275e-01,1.8114e-01,2.1363e-02}; + Double_t x=*px; + // + Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); + return x/TMath::Power(pass1,kxn)*(1.+c[0]*x+c[1]*x*x)/(1.+c[2]*x*x); +} + +// y-distribution +Double_t AliGenMUONlib::YCharm( const Double_t *px, const Double_t */*dummy*/) +{ +// Charm y :: Carrer & Dainese : ALICE-INT-2003-019 v.3 (hep-ph/0311225) +// Pythia tuned to reproduce the distribution given by the HVQMNR program based on NLO calculations (pQCD) +// shadowing + kt broadening + + Double_t x=px[0]; + Double_t c[2]={-2.42985e-03,-2.31001e-04}; + Double_t y=1+(c[0]*TMath::Power(x,2))+(c[1]*TMath::Power(x,4)); + Double_t ycharm; + + if (TMath::Abs(x)>8) { + ycharm=0.; + } + else { + ycharm=TMath::Power(y,3); + } + + return ycharm; +} +Double_t AliGenMUONlib::YCharmF0M0S0PP( const Double_t *px, const Double_t */*dummy*/) +{ +// FiMjSkPP define theoretical uncertainties around F0M0S0PP as follows: +// YCharmFiMjSkPP = YCharmF0M0S0PP * (dN(i,j,k)/dy / dN(0,0,0)/dy)_MNR +// i=0,1,2; j=0,1,2; k=0,1,...,6 +// dN(i,j,k)/dy - spectra obtained by A.Dainese (hep-ph/0601164, p.88; +// http://www-zeus.desy.de/~corradi/benchmarks) from NLO pQCD (MNR) +// calculations for the following inputs: +// Peterson fragmentation function (F) with \epsilon_c = 0.02, 0.002 & 0.11 +// for i=0,1 & 2 respectively; quark mass (M) of 1.5, 1.3 & 1.7 GeV +// for j=0,1 & 2 respectively; +// factorisation \mu_F = a*mt and renormalisation \mu_R = b*mt scales (S) +// with a/b = 1/1,1/0.5, 0.5/1, 0.5/0.5, 1/2, 2/1 & 2/2 for +// k = 0, 1, 2, 3, 4, 5 & 6 respectively; CTEQ6.1 PDF set +// (PDF uncertainty not considered since is small, see hep-ph/0601164, p.89). +// June 2008, Smbat.Grigoryan@cern.ch + +// Charm y +// Pythia6.214 (kCharmppMNRwmi, PDF = CTEQ5L, quark mass = 1.2 GeV, PtHard > 2.76 GeV/c) +// for pp collisions at 14 TeV with one c-cbar pair per event. +// Corresponding NLO total cross section is 5.68 mb + + Double_t x=px[0]; + Double_t c[2]={7.0909e-03,6.1967e-05}; + Double_t y=1-(c[0]*TMath::Power(x,2))-(c[1]*TMath::Power(x,4)); + Double_t ycharm; + + if (TMath::Abs(x)>9) { + ycharm=0.; + } + else { + ycharm=TMath::Power(y,3); + } + + return ycharm; +} +Double_t AliGenMUONlib::YCharmF1M0S0PP( const Double_t *px, const Double_t */*dummy*/) +{ +// Charm y +// Corresponding NLO total cross section is 6.06 mb + Double_t x=px[0]; + Double_t c[2]={6.9707e-03,6.0971e-05}; + Double_t y=1-(c[0]*TMath::Power(x,2))-(c[1]*TMath::Power(x,4)); + Double_t ycharm; + + if (TMath::Abs(x)>9) { + ycharm=0.; + } + else { + ycharm=TMath::Power(y,3); + } + + return ycharm; +} +Double_t AliGenMUONlib::YCharmF2M0S0PP( const Double_t *px, const Double_t */*dummy*/) +{ +// Charm y +// Corresponding NLO total cross section is 6.06 mb + Double_t x=px[0]; + Double_t c[2]={7.1687e-03,6.5303e-05}; + Double_t y=1-(c[0]*TMath::Power(x,2))-(c[1]*TMath::Power(x,4)); + Double_t ycharm; + + if (TMath::Abs(x)>9) { + ycharm=0.; + } + else { + ycharm=TMath::Power(y,3); + } + + return ycharm; +} +Double_t AliGenMUONlib::YCharmF0M1S0PP( const Double_t *px, const Double_t */*dummy*/) +{ +// Charm y +// Corresponding NLO total cross section is 7.69 mb + Double_t x=px[0]; + Double_t c[2]={5.9090e-03,7.1854e-05}; + Double_t y=1-(c[0]*TMath::Power(x,2))-(c[1]*TMath::Power(x,4)); + Double_t ycharm; + + if (TMath::Abs(x)>9) { + ycharm=0.; + } + else { + ycharm=TMath::Power(y,3); + } + + return ycharm; +} +Double_t AliGenMUONlib::YCharmF0M2S0PP( const Double_t *px, const Double_t */*dummy*/) +{ +// Charm y +// Corresponding NLO total cross section is 4.81 mb + Double_t x=px[0]; + Double_t c[2]={8.0882e-03,5.5872e-05}; + Double_t y=1-(c[0]*TMath::Power(x,2))-(c[1]*TMath::Power(x,4)); + Double_t ycharm; + + if (TMath::Abs(x)>9) { + ycharm=0.; + } + else { + ycharm=TMath::Power(y,3); + } + + return ycharm; +} +Double_t AliGenMUONlib::YCharmF0M0S1PP( const Double_t *px, const Double_t */*dummy*/) +{ +// Charm y +// Corresponding NLO total cross section is 14.09 mb + Double_t x=px[0]; + Double_t c[2]={7.2520e-03,6.2691e-05}; + Double_t y=1-(c[0]*TMath::Power(x,2))-(c[1]*TMath::Power(x,4)); + Double_t ycharm; + + if (TMath::Abs(x)>9) { + ycharm=0.; + } + else { + ycharm=TMath::Power(y,3); + } + + return ycharm; +} +Double_t AliGenMUONlib::YCharmF0M0S2PP( const Double_t *px, const Double_t */*dummy*/) +{ +// Charm y +// Corresponding NLO total cross section is 1.52 mb + Double_t x=px[0]; + Double_t c[2]={1.1040e-04,1.4498e-04}; + Double_t y=1-(c[0]*TMath::Power(x,2))-(c[1]*TMath::Power(x,4)); + Double_t ycharm; + + if (TMath::Abs(x)>9) { + ycharm=0.; + } + else { + ycharm=TMath::Power(y,3); + } + + return ycharm; +} +Double_t AliGenMUONlib::YCharmF0M0S3PP( const Double_t *px, const Double_t */*dummy*/) +{ +// Charm y +// Corresponding NLO total cross section is 3.67 mb + Double_t x=px[0]; + Double_t c[2]={-3.1328e-03,1.8270e-04}; + Double_t y=1-(c[0]*TMath::Power(x,2))-(c[1]*TMath::Power(x,4)); + Double_t ycharm; + + if (TMath::Abs(x)>9) { + ycharm=0.; + } + else { + ycharm=TMath::Power(y,3); + } + + return ycharm; +} +Double_t AliGenMUONlib::YCharmF0M0S4PP( const Double_t *px, const Double_t */*dummy*/) +{ +// Charm y +// Corresponding NLO total cross section is 3.38 mb + Double_t x=px[0]; + Double_t c[2]={7.0865e-03,6.2532e-05}; + Double_t y=1-(c[0]*TMath::Power(x,2))-(c[1]*TMath::Power(x,4)); + Double_t ycharm; + + if (TMath::Abs(x)>9) { + ycharm=0.; + } + else { + ycharm=TMath::Power(y,3); + } + + return ycharm; +} +Double_t AliGenMUONlib::YCharmF0M0S5PP( const Double_t *px, const Double_t */*dummy*/) +{ +// Charm y +// Corresponding NLO total cross section is 10.37 mb + Double_t x=px[0]; + Double_t c[2]={7.7070e-03,5.3533e-05}; + Double_t y=1-(c[0]*TMath::Power(x,2))-(c[1]*TMath::Power(x,4)); + Double_t ycharm; + + if (TMath::Abs(x)>9) { + ycharm=0.; + } + else { + ycharm=TMath::Power(y,3); + } + + return ycharm; +} +Double_t AliGenMUONlib::YCharmF0M0S6PP( const Double_t *px, const Double_t */*dummy*/) +{ +// Charm y +// Corresponding NLO total cross section is 7.22 mb + Double_t x=px[0]; + Double_t c[2]={7.9195e-03,5.3823e-05}; + Double_t y=1-(c[0]*TMath::Power(x,2))-(c[1]*TMath::Power(x,4)); + Double_t ycharm; + + if (TMath::Abs(x)>9) { + ycharm=0.; + } + else { + ycharm=TMath::Power(y,3); + } + + return ycharm; +} + + +Int_t AliGenMUONlib::IpCharm(TRandom *ran) +{ +// Charm composition + Float_t random; + Int_t ip; +// 411,421,431,4122 + random = ran->Rndm(); +// Taux de production Carrer & Dainese : ALICE-INT-2003-019 v.3 +// >>>>> cf. tab 4 p 11 + + if (random < 0.30) { + ip=421; + } else if (random < 0.60) { + ip=-421; + } else if (random < 0.70) { + ip=411; + } else if (random < 0.80) { + ip=-411; + } else if (random < 0.86) { + ip=431; + } else if (random < 0.92) { + ip=-431; + } else if (random < 0.96) { + ip=4122; + } else { + ip=-4122; + } + + return ip; +} + +// +// Beauty +// +// +// pt-distribution +//____________________________________________________________ +Double_t AliGenMUONlib::PtBeauty( const Double_t *px, const Double_t */*dummy*/) +{ +// Beauty pT + const Double_t kpt0 = 6.53; + const Double_t kxn = 3.59; + Double_t x=*px; + // + Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); + return x/TMath::Power(pass1,kxn); +} + +Double_t AliGenMUONlib::PtBeautyCentral( const Double_t *px, const Double_t */*dummy*/) +{ +// Beauty pT + const Double_t kpt0 = 6.14; + const Double_t kxn = 2.93; + Double_t x=*px; + // + Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); + return x/TMath::Power(pass1,kxn); +} +Double_t AliGenMUONlib::PtBeautyF0M0S0PP( const Double_t *px, const Double_t */*dummy*/) +{ +// FiMjSkPP define theoretical uncertainties around F0M0S0PP as follows: +// PtBeautyFiMjSkPP = PtBeautyF0M0S0PP * (dN(i,j,k)/dpt / dN(0,0,0)/dpt)_MNR +// i=0,1,2; j=0,1,2; k=0,1,...,6 +// dN(i,j,k)/dpt - spectra obtained by A.Dainese (hep-ph/0601164, p.88; +// http://www-zeus.desy.de/~corradi/benchmarks) from NLO pQCD (MNR) +// calculations for the following inputs: +// Peterson fragmentation function (F) with \epsilon_b = 0.001, 0.0002 & 0.004 +// for i=0,1 & 2 respectively; quark mass (M) of 4.75, 4.5 & 5.0 GeV +// for j=0,1 & 2 respectively; +// factorisation \mu_F = a*mt and renormalisation \mu_R = b*mt scales (S) +// with a/b = 1/1, 1/0.5, 0.5/1, 0.5/0.5, 1/2, 2/1 & 2/2 for +// k = 0, 1, 2, 3, 4, 5 & 6 respectively; CTEQ6.1 PDF set +// (PDF uncertainty not considered since is small, see hep-ph/0601164, p.89). +// June 2008, Smbat.Grigoryan@cern.ch + +// Beauty pT +// Pythia6.214 (kBeautyppMNRwmi, PDF = CTEQ5L, quark mass = 4.75 GeV, PtHard > 2.76 GeV/c) +// for pp collisions at 14 TeV with one b-bbar pair per event. +// Corresponding NLO total cross section is 0.494 mb + + const Double_t kpt0 = 8.0575; + const Double_t kxn = 3.1921; + Double_t x=*px; + // + Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); + return x/TMath::Power(pass1,kxn); +} +Double_t AliGenMUONlib::PtBeautyF1M0S0PP( const Double_t *px, const Double_t */*dummy*/) +{ +// Beauty pT +// Corresponding NLO total cross section is 0.445 mb + const Double_t kpt0 = 8.6239; + const Double_t kxn = 3.2911; + Double_t x=*px; + // + Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); + return x/TMath::Power(pass1,kxn); +} +Double_t AliGenMUONlib::PtBeautyF2M0S0PP( const Double_t *px, const Double_t */*dummy*/) +{ +// Beauty pT +// Corresponding NLO total cross section is 0.445 mb + const Double_t kpt0 = 7.3367; + const Double_t kxn = 3.0692; + Double_t x=*px; + // + Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); + return x/TMath::Power(pass1,kxn); +} +Double_t AliGenMUONlib::PtBeautyF0M1S0PP( const Double_t *px, const Double_t */*dummy*/) +{ +// Beauty pT +// Corresponding NLO total cross section is 0.518 mb + const Double_t kpt0 = 7.6409; + const Double_t kxn = 3.1364; + Double_t x=*px; + // + Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); + return x/TMath::Power(pass1,kxn); +} +Double_t AliGenMUONlib::PtBeautyF0M2S0PP( const Double_t *px, const Double_t */*dummy*/) +{ +// Beauty pT +// Corresponding NLO total cross section is 0.384 mb + const Double_t kpt0 = 8.4948; + const Double_t kxn = 3.2546; + Double_t x=*px; + // + Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); + return x/TMath::Power(pass1,kxn); +} +Double_t AliGenMUONlib::PtBeautyF0M0S1PP( const Double_t *px, const Double_t */*dummy*/) +{ +// Beauty pT +// Corresponding NLO total cross section is 0.648 mb + const Double_t kpt0 = 7.6631; + const Double_t kxn = 3.1621; + Double_t x=*px; + // + Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); + return x/TMath::Power(pass1,kxn); +} +Double_t AliGenMUONlib::PtBeautyF0M0S2PP( const Double_t *px, const Double_t */*dummy*/) +{ +// Beauty pT +// Corresponding NLO total cross section is 0.294 mb + const Double_t kpt0 = 8.7245; + const Double_t kxn = 3.2213; + Double_t x=*px; + // + Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); + return x/TMath::Power(pass1,kxn); +} +Double_t AliGenMUONlib::PtBeautyF0M0S3PP( const Double_t *px, const Double_t */*dummy*/) +{ +// Beauty pT +// Corresponding NLO total cross section is 0.475 mb + const Double_t kpt0 = 8.5296; + const Double_t kxn = 3.2187; + Double_t x=*px; + // + Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); + return x/TMath::Power(pass1,kxn); +} +Double_t AliGenMUONlib::PtBeautyF0M0S4PP( const Double_t *px, const Double_t */*dummy*/) +{ +// Beauty pT +// Corresponding NLO total cross section is 0.324 mb + const Double_t kpt0 = 7.9440; + const Double_t kxn = 3.1614; + Double_t x=*px; + // + Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); + return x/TMath::Power(pass1,kxn); +} +Double_t AliGenMUONlib::PtBeautyF0M0S5PP( const Double_t *px, const Double_t */*dummy*/) +{ +// Beauty pT +// Corresponding NLO total cross section is 0.536 mb + const Double_t kpt0 = 8.2408; + const Double_t kxn = 3.3029; + Double_t x=*px; + // + Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); + return x/TMath::Power(pass1,kxn); +} +Double_t AliGenMUONlib::PtBeautyF0M0S6PP( const Double_t *px, const Double_t */*dummy*/) +{ +// Beauty pT +// Corresponding NLO total cross section is 0.420 mb + const Double_t kpt0 = 7.8041; + const Double_t kxn = 3.2094; + Double_t x=*px; + // + Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); + return x/TMath::Power(pass1,kxn); +} + +// y-distribution +Double_t AliGenMUONlib::YBeauty( const Double_t *px, const Double_t */*dummy*/) +{ +// Beauty y :: Carrer & Dainese : ALICE-INT-2003-019 v.3 (hep-ph/0311225) +// Pythia tuned to reproduce the distribution given by the HVQMNR program based on NLO calculations (pQCD) +// shadowing + kt broadening + + Double_t x=px[0]; + Double_t c[2]={-1.27590e-02,-2.42731e-04}; + Double_t y=1+c[0]*TMath::Power(x,2)+c[1]*TMath::Power(x,4); + Double_t ybeauty; + + if (TMath::Abs(x)>6) { + ybeauty=0.; + } + else { + ybeauty=TMath::Power(y,3); + } + + return ybeauty; +} +Double_t AliGenMUONlib::YBeautyF0M0S0PP( const Double_t *px, const Double_t */*dummy*/) +{ +// FiMjSkPP define theoretical uncertainties around F0M0S0PP as follows: +// YBeautyFiMjSkPP = YBeautyF0M0S0PP * (dN(i,j,k)/dy / dN(0,0,0)/dy)_MNR +// i=0,1,2; j=0,1,2; k=0,1,...,6 +// dN(i,j,k)/dy - spectra obtained by A.Dainese (hep-ph/0601164, p.88; +// http://www-zeus.desy.de/~corradi/benchmarks) from NLO pQCD (MNR) +// calculations for the following inputs: +// Peterson fragmentation function (F) with \epsilon_b = 0.001, 0.0002 & 0.004 +// for i=0,1 & 2 respectively; quark mass (M) of 4.75, 4.5 & 5.0 GeV +// for j=0,1 & 2 respectively; +// factorisation \mu_F = a*mt and renormalisation \mu_R = b*mt scales (S) +// with a/b = 1/1, 1/0.5, 0.5/1, 0.5/0.5, 1/2, 2/1 & 2/2 +// for k = 0, 1, 2, 3, 4, 5 & 6 respectively; CTEQ6.1 PDF set +// (PDF uncertainty not considered since is small, see hep-ph/0601164, p.89). +// June 2008, Smbat.Grigoryan@cern.ch + +// Beauty y +// Pythia6.214 (kBeautyppMNRwmi, PDF = CTEQ5L, quark mass = 4.75 GeV, PtHard > 2.76 GeV/c) +// for pp collisions at 14 TeV with one b-bbar pair per event. +// Corresponding NLO total cross section is 0.494 mb + + + Double_t x=px[0]; + Double_t c[2]={1.2350e-02,9.2667e-05}; + Double_t y=1-c[0]*TMath::Power(x,2)-c[1]*TMath::Power(x,4); + Double_t ybeauty; + + if (TMath::Abs(x)>7.6) { + ybeauty=0.; + } + else { + ybeauty=TMath::Power(y,3); + } + + return ybeauty; } -// y-distribution -Double_t AliGenMUONlib::YOmega( Double_t *px, Double_t */*dummy*/) +Double_t AliGenMUONlib::YBeautyF1M0S0PP( const Double_t *px, const Double_t */*dummy*/) { -// Omega y - Double_t *dum=0; - return YJpsi(px,dum); +// Beauty y +// Corresponding NLO total cross section is 0.445 mb + Double_t x=px[0]; + Double_t c[2]={1.2292e-02,9.1847e-05}; + Double_t y=1-c[0]*TMath::Power(x,2)-c[1]*TMath::Power(x,4); + Double_t ybeauty; + + if (TMath::Abs(x)>7.6) { + ybeauty=0.; + } + else { + ybeauty=TMath::Power(y,3); + } + + return ybeauty; } -// particle composition -// -Int_t AliGenMUONlib::IpOmega(TRandom *) +Double_t AliGenMUONlib::YBeautyF2M0S0PP( const Double_t *px, const Double_t */*dummy*/) { -// Omega composition - return 223; +// Beauty y +// Corresponding NLO total cross section is 0.445 mb + Double_t x=px[0]; + Double_t c[2]={1.2436e-02,9.3709e-05}; + Double_t y=1-c[0]*TMath::Power(x,2)-c[1]*TMath::Power(x,4); + Double_t ybeauty; + + if (TMath::Abs(x)>7.6) { + ybeauty=0.; + } + else { + ybeauty=TMath::Power(y,3); + } + + return ybeauty; } - - -// -// Eta -// -// -// pt-distribution (by scaling of pion distribution) -//____________________________________________________________ -Double_t AliGenMUONlib::PtEta( Double_t *px, Double_t */*dummy*/) +Double_t AliGenMUONlib::YBeautyF0M1S0PP( const Double_t *px, const Double_t */*dummy*/) { -// Eta pT - return PtScal(*px,3); +// Beauty y +// Corresponding NLO total cross section is 0.518 mb + Double_t x=px[0]; + Double_t c[2]={1.1714e-02,1.0068e-04}; + Double_t y=1-c[0]*TMath::Power(x,2)-c[1]*TMath::Power(x,4); + Double_t ybeauty; + + if (TMath::Abs(x)>7.6) { + ybeauty=0.; + } + else { + ybeauty=TMath::Power(y,3); + } + + return ybeauty; } -// y-distribution -Double_t AliGenMUONlib::YEta( Double_t *px, Double_t */*dummy*/) +Double_t AliGenMUONlib::YBeautyF0M2S0PP( const Double_t *px, const Double_t */*dummy*/) { -// Eta y - Double_t *dum=0; - return YJpsi(px,dum); +// Beauty y +// Corresponding NLO total cross section is 0.384 mb + Double_t x=px[0]; + Double_t c[2]={1.2944e-02,8.5500e-05}; + Double_t y=1-c[0]*TMath::Power(x,2)-c[1]*TMath::Power(x,4); + Double_t ybeauty; + + if (TMath::Abs(x)>7.6) { + ybeauty=0.; + } + else { + ybeauty=TMath::Power(y,3); + } + + return ybeauty; } -// particle composition -// -Int_t AliGenMUONlib::IpEta(TRandom *) +Double_t AliGenMUONlib::YBeautyF0M0S1PP( const Double_t *px, const Double_t */*dummy*/) { -// Eta composition - return 221; +// Beauty y +// Corresponding NLO total cross section is 0.648 mb + Double_t x=px[0]; + Double_t c[2]={1.2455e-02,9.2713e-05}; + Double_t y=1-c[0]*TMath::Power(x,2)-c[1]*TMath::Power(x,4); + Double_t ybeauty; + + if (TMath::Abs(x)>7.6) { + ybeauty=0.; + } + else { + ybeauty=TMath::Power(y,3); + } + + return ybeauty; } - -// -// Charm -// -// -// pt-distribution -//____________________________________________________________ -Double_t AliGenMUONlib::PtCharm( Double_t *px, Double_t */*dummy*/) +Double_t AliGenMUONlib::YBeautyF0M0S2PP( const Double_t *px, const Double_t */*dummy*/) { -// Charm pT - const Double_t kpt0 = 4.08; - const Double_t kxn = 9.40; - - Double_t x=*px; - // - Double_t pass1 = 1.+(x/kpt0); - return x/TMath::Power(pass1,kxn); +// Beauty y +// Corresponding NLO total cross section is 0.294 mb + Double_t x=px[0]; + Double_t c[2]={1.0897e-02,1.1878e-04}; + Double_t y=1-c[0]*TMath::Power(x,2)-c[1]*TMath::Power(x,4); + Double_t ybeauty; + + if (TMath::Abs(x)>7.6) { + ybeauty=0.; + } + else { + ybeauty=TMath::Power(y,3); + } + + return ybeauty; } -// y-distribution -Double_t AliGenMUONlib::YCharm( Double_t *px, Double_t */*dummy*/) +Double_t AliGenMUONlib::YBeautyF0M0S3PP( const Double_t *px, const Double_t */*dummy*/) { -// Charm y - Double_t *dum=0; - return YJpsi(px,dum); +// Beauty y +// Corresponding NLO total cross section is 0.475 mb + Double_t x=px[0]; + Double_t c[2]={1.0912e-02,1.1858e-04}; + Double_t y=1-c[0]*TMath::Power(x,2)-c[1]*TMath::Power(x,4); + Double_t ybeauty; + + if (TMath::Abs(x)>7.6) { + ybeauty=0.; + } + else { + ybeauty=TMath::Power(y,3); + } + + return ybeauty; } - -Int_t AliGenMUONlib::IpCharm(TRandom *ran) -{ -// Charm composition - Float_t random; - Int_t ip; -// 411,421,431,4122 - random = ran->Rndm(); - if (random < 0.5) { - ip=411; - } else if (random < 0.75) { - ip=421; - } else if (random < 0.90) { - ip=431; - } else { - ip=4122; +Double_t AliGenMUONlib::YBeautyF0M0S4PP( const Double_t *px, const Double_t */*dummy*/) +{ +// Beauty y +// Corresponding NLO total cross section is 0.324 mb + Double_t x=px[0]; + Double_t c[2]={1.2378e-02,9.2490e-05}; + Double_t y=1-c[0]*TMath::Power(x,2)-c[1]*TMath::Power(x,4); + Double_t ybeauty; + + if (TMath::Abs(x)>7.6) { + ybeauty=0.; + } + else { + ybeauty=TMath::Power(y,3); } - if (ran->Rndm() < 0.5) {ip=-ip;} - return ip; + return ybeauty; } - - -// -// Beauty -// -// -// pt-distribution -//____________________________________________________________ -Double_t AliGenMUONlib::PtBeauty( Double_t *px, Double_t */*dummy*/) +Double_t AliGenMUONlib::YBeautyF0M0S5PP( const Double_t *px, const Double_t */*dummy*/) { -// Beauty pT - const Double_t kpt0 = 4.; - const Double_t kxn = 3.6; - Double_t x=*px; - // - Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); - return x/TMath::Power(pass1,kxn); +// Beauty y +// Corresponding NLO total cross section is 0.536 mb + Double_t x=px[0]; + Double_t c[2]={1.2886e-02,8.2912e-05}; + Double_t y=1-c[0]*TMath::Power(x,2)-c[1]*TMath::Power(x,4); + Double_t ybeauty; + + if (TMath::Abs(x)>7.6) { + ybeauty=0.; + } + else { + ybeauty=TMath::Power(y,3); + } + + return ybeauty; } -// y-distribution -Double_t AliGenMUONlib::YBeauty( Double_t *px, Double_t */*dummy*/) +Double_t AliGenMUONlib::YBeautyF0M0S6PP( const Double_t *px, const Double_t */*dummy*/) { // Beauty y - Double_t *dum=0; - return YJpsi(px,dum); +// Corresponding NLO total cross section is 0.420 mb + Double_t x=px[0]; + Double_t c[2]={1.3106e-02,8.0115e-05}; + Double_t y=1-c[0]*TMath::Power(x,2)-c[1]*TMath::Power(x,4); + Double_t ybeauty; + + if (TMath::Abs(x)>7.6) { + ybeauty=0.; + } + else { + ybeauty=TMath::Power(y,3); + } + + return ybeauty; } Int_t AliGenMUONlib::IpBeauty(TRandom *ran) @@ -688,22 +2089,34 @@ Int_t AliGenMUONlib::IpBeauty(TRandom *ran) // Beauty Composition Float_t random; Int_t ip; - random = ran->Rndm(); - if (random < 0.5) { - ip=511; - } else if (random < 0.75) { - ip=521; - } else if (random < 0.90) { - ip=531; + random = ran->Rndm(); + +// Taux de production Carrer & Dainese : ALICE-INT-2003-019 v.3 +// >>>>> cf. tab 4 p 11 + + if (random < 0.20) { + ip=511; + } else if (random < 0.40) { + ip=-511; + } else if (random < 0.605) { + ip=521; + } else if (random < 0.81) { + ip=-521; + } else if (random < 0.87) { + ip=531; + } else if (random < 0.93) { + ip=-531; + } else if (random < 0.965) { + ip=5122; } else { - ip=5122; + ip=-5122; } - if (ran->Rndm() < 0.5) {ip=-ip;} - return ip; + return ip; } -typedef Double_t (*GenFunc) (Double_t*, Double_t*); + +typedef Double_t (*GenFunc) (const Double_t*, const Double_t*); GenFunc AliGenMUONlib::GetPt(Int_t param, const char* tname) const { // Return pointer to pT parameterisation @@ -722,11 +2135,33 @@ GenFunc AliGenMUONlib::GetPt(Int_t param, const char* tname) const break; case kJpsiFamily: case kPsiP: + case kChic1: + case kChic2: case kJpsi: if (sname == "Vogt" || sname == "Vogt PbPb") { func=PtJpsiPbPb; } else if (sname == "Vogt pp") { func=PtJpsiPP; + } else if (sname == "CDF scaled") { + func=PtJpsiCDFscaled; + } else if (sname == "CDF pp") { + func=PtJpsiCDFscaledPP; + } else if (sname == "CDF pp 10") { + func=PtJpsiCDFscaledPP10; + } else if (sname == "CDF pp 8.8") { + func=PtJpsiCDFscaledPP9; + } else if (sname == "CDF pp 7" || sname == "CDF pp 7 flat y") { + func=PtJpsiCDFscaledPP7; + } else if (sname == "CDF pp 3.94") { + func=PtJpsiCDFscaledPP4; + } else if (sname == "CDF pPb 8.8") { + func=PtJpsiCDFscaledPPb9; + } else if (sname == "CDF Pbp 8.8") { + func=PtJpsiCDFscaledPbP9; + } else if (sname == "CDF PbPb 3.94") { + func=PtJpsiCDFscaledPbPb4; + } else if (sname == "Flat" || sname == "CDF pp 7 flat pt") { + func=PtJpsiFlat; } else { func=PtJpsi; } @@ -742,15 +2177,87 @@ GenFunc AliGenMUONlib::GetPt(Int_t param, const char* tname) const func=PtUpsilonPbPb; } else if (sname == "Vogt pp") { func=PtUpsilonPP; + } else if (sname == "CDF scaled") { + func=PtUpsilonCDFscaled; + } else if (sname == "CDF pp") { + func=PtUpsilonCDFscaledPP; + } else if (sname == "CDF pp 10") { + func=PtUpsilonCDFscaledPP10; + } else if (sname == "CDF pp 8.8") { + func=PtUpsilonCDFscaledPP9; + } else if (sname == "CDF pp 7") { + func=PtUpsilonCDFscaledPP7; + } else if (sname == "CDF pp 3.94") { + func=PtUpsilonCDFscaledPP4; + } else if (sname == "CDF pPb 8.8") { + func=PtUpsilonCDFscaledPPb9; + } else if (sname == "CDF Pbp 8.8") { + func=PtUpsilonCDFscaledPbP9; + } else if (sname == "CDF PbPb 3.94") { + func=PtUpsilonCDFscaledPbPb4; + } else if (sname == "Flat") { + func=PtUpsilonFlat; } else { func=PtUpsilon; } break; case kCharm: - func=PtCharm; + if (sname == "F0M0S0 pp") { + func=PtCharmF0M0S0PP; + } else if (sname == "F1M0S0 pp") { + func=PtCharmF1M0S0PP; + } else if (sname == "F2M0S0 pp") { + func=PtCharmF2M0S0PP; + } else if (sname == "F0M1S0 pp") { + func=PtCharmF0M1S0PP; + } else if (sname == "F0M2S0 pp") { + func=PtCharmF0M2S0PP; + } else if (sname == "F0M0S1 pp") { + func=PtCharmF0M0S1PP; + } else if (sname == "F0M0S2 pp") { + func=PtCharmF0M0S2PP; + } else if (sname == "F0M0S3 pp") { + func=PtCharmF0M0S3PP; + } else if (sname == "F0M0S4 pp") { + func=PtCharmF0M0S4PP; + } else if (sname == "F0M0S5 pp") { + func=PtCharmF0M0S5PP; + } else if (sname == "F0M0S6 pp") { + func=PtCharmF0M0S6PP; + } else if (sname == "central") { + func=PtCharmCentral; + } else { + func=PtCharm; + } break; case kBeauty: - func=PtBeauty; + if (sname == "F0M0S0 pp") { + func=PtBeautyF0M0S0PP; + } else if (sname == "F1M0S0 pp") { + func=PtBeautyF1M0S0PP; + } else if (sname == "F2M0S0 pp") { + func=PtBeautyF2M0S0PP; + } else if (sname == "F0M1S0 pp") { + func=PtBeautyF0M1S0PP; + } else if (sname == "F0M2S0 pp") { + func=PtBeautyF0M2S0PP; + } else if (sname == "F0M0S1 pp") { + func=PtBeautyF0M0S1PP; + } else if (sname == "F0M0S2 pp") { + func=PtBeautyF0M0S2PP; + } else if (sname == "F0M0S3 pp") { + func=PtBeautyF0M0S3PP; + } else if (sname == "F0M0S4 pp") { + func=PtBeautyF0M0S4PP; + } else if (sname == "F0M0S5 pp") { + func=PtBeautyF0M0S5PP; + } else if (sname == "F0M0S6 pp") { + func=PtBeautyF0M0S6PP; + } else if (sname == "central") { + func=PtBeautyCentral; + } else { + func=PtBeauty; + } break; case kPion: func=PtPion; @@ -758,6 +2265,12 @@ GenFunc AliGenMUONlib::GetPt(Int_t param, const char* tname) const case kKaon: func=PtKaon; break; + case kChic0: + func=PtChic0; + break; + case kChic: + func=PtChic; + break; default: func=0; printf(" unknown parametrisation\n"); @@ -767,9 +2280,10 @@ GenFunc AliGenMUONlib::GetPt(Int_t param, const char* tname) const GenFunc AliGenMUONlib::GetY(Int_t param, const char* tname) const { + // + // Return pointer to y- parameterisation + // TString sname = TString(tname); - -// Return pointer to y- parameterisation GenFunc func; switch (param) { @@ -784,11 +2298,33 @@ GenFunc AliGenMUONlib::GetY(Int_t param, const char* tname) const break; case kJpsiFamily: case kPsiP: + case kChic1: + case kChic2: case kJpsi: if (sname == "Vogt" || sname == "Vogt PbPb") { func=YJpsiPbPb; } else if (sname == "Vogt pp"){ func=YJpsiPP; + } else if (sname == "CDF scaled") { + func=YJpsiCDFscaled; + } else if (sname == "CDF pp") { + func=YJpsiCDFscaledPP; + } else if (sname == "CDF pp 10") { + func=YJpsiCDFscaledPP10; + } else if (sname == "CDF pp 8.8") { + func=YJpsiCDFscaledPP9; + } else if (sname == "CDF pp 7" || sname == "CDF pp 7 flat pt") { + func=YJpsiCDFscaledPP7; + } else if (sname == "CDF pp 3.94") { + func=YJpsiCDFscaledPP4; + } else if (sname == "CDF pPb 8.8") { + func=YJpsiCDFscaledPPb9; + } else if (sname == "CDF Pbp 8.8") { + func=YJpsiCDFscaledPbP9; + } else if (sname == "CDF PbPb 3.94") { + func=YJpsiCDFscaledPbPb4; + } else if (sname == "Flat" || sname == "CDF pp 7 flat y") { + func=YJpsiFlat; } else { func=YJpsi; } @@ -804,15 +2340,83 @@ GenFunc AliGenMUONlib::GetY(Int_t param, const char* tname) const func=YUpsilonPbPb; } else if (sname == "Vogt pp") { func = YUpsilonPP; + } else if (sname == "CDF scaled") { + func=YUpsilonCDFscaled; + } else if (sname == "CDF pp") { + func=YUpsilonCDFscaledPP; + } else if (sname == "CDF pp 10") { + func=YUpsilonCDFscaledPP10; + } else if (sname == "CDF pp 8.8") { + func=YUpsilonCDFscaledPP9; + } else if (sname == "CDF pp 7") { + func=YUpsilonCDFscaledPP7; + } else if (sname == "CDF pp 3.94") { + func=YUpsilonCDFscaledPP4; + } else if (sname == "CDF pPb 8.8") { + func=YUpsilonCDFscaledPPb9; + } else if (sname == "CDF Pbp 8.8") { + func=YUpsilonCDFscaledPbP9; + } else if (sname == "CDF PbPb 3.94") { + func=YUpsilonCDFscaledPbPb4; + } else if (sname == "Flat") { + func=YUpsilonFlat; } else { func=YUpsilon; } break; case kCharm: - func=YCharm; + if (sname == "F0M0S0 pp") { + func=YCharmF0M0S0PP; + } else if (sname == "F1M0S0 pp") { + func=YCharmF1M0S0PP; + } else if (sname == "F2M0S0 pp") { + func=YCharmF2M0S0PP; + } else if (sname == "F0M1S0 pp") { + func=YCharmF0M1S0PP; + } else if (sname == "F0M2S0 pp") { + func=YCharmF0M2S0PP; + } else if (sname == "F0M0S1 pp") { + func=YCharmF0M0S1PP; + } else if (sname == "F0M0S2 pp") { + func=YCharmF0M0S2PP; + } else if (sname == "F0M0S3 pp") { + func=YCharmF0M0S3PP; + } else if (sname == "F0M0S4 pp") { + func=YCharmF0M0S4PP; + } else if (sname == "F0M0S5 pp") { + func=YCharmF0M0S5PP; + } else if (sname == "F0M0S6 pp") { + func=YCharmF0M0S6PP; + } else { + func=YCharm; + } break; case kBeauty: - func=YBeauty; + if (sname == "F0M0S0 pp") { + func=YBeautyF0M0S0PP; + } else if (sname == "F1M0S0 pp") { + func=YBeautyF1M0S0PP; + } else if (sname == "F2M0S0 pp") { + func=YBeautyF2M0S0PP; + } else if (sname == "F0M1S0 pp") { + func=YBeautyF0M1S0PP; + } else if (sname == "F0M2S0 pp") { + func=YBeautyF0M2S0PP; + } else if (sname == "F0M0S1 pp") { + func=YBeautyF0M0S1PP; + } else if (sname == "F0M0S2 pp") { + func=YBeautyF0M0S2PP; + } else if (sname == "F0M0S3 pp") { + func=YBeautyF0M0S3PP; + } else if (sname == "F0M0S4 pp") { + func=YBeautyF0M0S4PP; + } else if (sname == "F0M0S5 pp") { + func=YBeautyF0M0S5PP; + } else if (sname == "F0M0S6 pp") { + func=YBeautyF0M0S6PP; + } else { + func=YBeauty; + } break; case kPion: func=YPion; @@ -820,12 +2424,165 @@ GenFunc AliGenMUONlib::GetY(Int_t param, const char* tname) const case kKaon: func=YKaon; break; + case kChic0: + func=YChic0; + break; + case kChic: + func=YChic; + break; default: func=0; printf(" unknown parametrisation\n"); } return func; } + +// +// Chi +// +// +// pt-distribution +//____________________________________________________________ +Double_t AliGenMUONlib::PtChic0( const Double_t *px, const Double_t */*dummy*/) +{ +// Chi_c1 pT + const Double_t kpt0 = 4.; + const Double_t kxn = 3.6; + Double_t x=*px; + // + Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); + return x/TMath::Power(pass1,kxn); +} +Double_t AliGenMUONlib::PtChic1( const Double_t *px, const Double_t */*dummy*/) +{ +// Chi_c1 pT + const Double_t kpt0 = 4.; + const Double_t kxn = 3.6; + Double_t x=*px; + // + Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); + return x/TMath::Power(pass1,kxn); +} +Double_t AliGenMUONlib::PtChic2( const Double_t *px, const Double_t */*dummy*/) +{ +// Chi_c2 pT + const Double_t kpt0 = 4.; + const Double_t kxn = 3.6; + Double_t x=*px; + // + Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); + return x/TMath::Power(pass1,kxn); +} +Double_t AliGenMUONlib::PtChic( const Double_t *px, const Double_t */*dummy*/) +{ +// Chi_c family pT + const Double_t kpt0 = 4.; + const Double_t kxn = 3.6; + Double_t x=*px; + // + Double_t pass1 = 1.+(x/kpt0)*(x/kpt0); + return x/TMath::Power(pass1,kxn); +} + +// +// y-distribution +//____________________________________________________________ +Double_t AliGenMUONlib::YChic0(const Double_t *py, const Double_t */*dummy*/) +{ +// Chi-1c y + const Double_t ky0 = 4.; + const Double_t kb=1.; + Double_t yj; + Double_t y=TMath::Abs(*py); + // + if (y < ky0) + yj=kb; + else + yj=kb*TMath::Exp(-(y-ky0)*(y-ky0)/2); + return yj; +} + +Double_t AliGenMUONlib::YChic1(const Double_t *py, const Double_t */*dummy*/) +{ +// Chi-1c y + const Double_t ky0 = 4.; + const Double_t kb=1.; + Double_t yj; + Double_t y=TMath::Abs(*py); + // + if (y < ky0) + yj=kb; + else + yj=kb*TMath::Exp(-(y-ky0)*(y-ky0)/2); + return yj; +} + +Double_t AliGenMUONlib::YChic2(const Double_t *py, const Double_t */*dummy*/) +{ +// Chi-2c y + const Double_t ky0 = 4.; + const Double_t kb=1.; + Double_t yj; + Double_t y=TMath::Abs(*py); + // + if (y < ky0) + yj=kb; + else + yj=kb*TMath::Exp(-(y-ky0)*(y-ky0)/2); + return yj; +} + +Double_t AliGenMUONlib::YChic(const Double_t *py, const Double_t */*dummy*/) +{ +// Chi_c family y + const Double_t ky0 = 4.; + const Double_t kb=1.; + Double_t yj; + Double_t y=TMath::Abs(*py); + // + if (y < ky0) + yj=kb; + else + yj=kb*TMath::Exp(-(y-ky0)*(y-ky0)/2); + return yj; +} + +// particle composition +// +Int_t AliGenMUONlib::IpChic0(TRandom *) +{ +// Chi composition + return 10441; +} +// +Int_t AliGenMUONlib::IpChic1(TRandom *) +{ +// Chi composition + return 20443; +} +Int_t AliGenMUONlib::IpChic2(TRandom *) +{ +// Chi_c2 prime composition + return 445; +} +Int_t AliGenMUONlib::IpChic(TRandom *) +{ +// Chi composition + Int_t ip; + Float_t r = gRandom->Rndm(); + if (r < 0.001) { + ip = 10441; + } else if( r < 0.377 ) { + ip = 20443; + } else { + ip = 445; + } + return ip; +} + + +//_____________________________________________________________ + typedef Int_t (*GenFuncIp) (TRandom *); GenFuncIp AliGenMUONlib::GetIp(Int_t param, const char* /*tname*/) const { @@ -876,6 +2633,18 @@ GenFuncIp AliGenMUONlib::GetIp(Int_t param, const char* /*tname*/) const case kKaon: func=IpKaon; break; + case kChic0: + func=IpChic0; + break; + case kChic1: + func=IpChic1; + break; + case kChic2: + func=IpChic2; + break; + case kChic: + func=IpChic; + break; default: func=0; printf(" unknown parametrisation\n");