Double_t AliGenMUONlib::PtJpsiCDFscaled( Double_t *px, Double_t */*dummy*/)
{
// J/Psi pT
- const Double_t kpt0 = 4.657;
- const Double_t kxn = 3.776;
+//
+// 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::PtJpsiCDFscaledold( Double_t *px, Double_t */*dummy*/)
+{
+// J/Psi pT
+//
+// PbPb 5.5 TeV
+// scaled from CDF "old" data at 2 TeV
+
+ const Double_t kpt0 = 4.703;
+ const Double_t kxn = 3.826;
+ Double_t x=*px;
+ //
+ Double_t pass1 = 1.+(x/kpt0)*(x/kpt0);
+ return x/TMath::Power(pass1,kxn);
+}
+
+Double_t AliGenMUONlib::PtJpsiCDFscaledPP( Double_t *px, 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::PtJpsiCDFscaledPPold( Double_t *px, Double_t */*dummy*/)
+{
+// J/Psi pT
+//
+// pp 14 TeV
+// scaled from CDF "old" data at 2 TeV
+
+ const Double_t kpt0 = 5.355;
+ const Double_t kxn = 3.821;
+ Double_t x=*px;
+ //
+ Double_t pass1 = 1.+(x/kpt0)*(x/kpt0);
+ return x/TMath::Power(pass1,kxn);
+}
+
+Double_t AliGenMUONlib::PtJpsiCDFscaledPP10( Double_t *px, 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::PtJpsiFlat( Double_t */*px*/, Double_t */*dummy*/ )
+{
+ return 1.;
+}
+
Double_t AliGenMUONlib::PtJpsiPbPb( Double_t *px, Double_t */*dummy*/)
{
// J/Psi pT spectrum
};
Double_t y;
- if (x < 15.) {
+ if (x < 10.) {
Int_t j;
y = c[j = 7];
while (j > 0) y = y * x +c[--j];
return yj;
}
+Double_t AliGenMUONlib::YJpsiFlat( Double_t */*py*/, Double_t */*dummy*/ )
+{
+ return 1.;
+}
+
Double_t AliGenMUONlib::YJpsiPbPb( Double_t *px, Double_t */*dummy*/)
{
return AliGenMUONlib::YJpsiPbPb(px, dummy);
}
+Double_t AliGenMUONlib::YJpsiCDFscaledold( Double_t *px, Double_t* dummy)
+{
+ // J/Psi y
+ return AliGenMUONlib::YJpsiPbPb(px, dummy);
+}
+
+Double_t AliGenMUONlib::YJpsiCDFscaledPP( Double_t *px, Double_t* dummy)
+{
+ // J/Psi y
+ return AliGenMUONlib::YJpsiPP(px, dummy);
+}
+
+Double_t AliGenMUONlib::YJpsiCDFscaledPPold( Double_t *px, Double_t* dummy)
+{
+ // J/Psi y
+ return AliGenMUONlib::YJpsiPP(px, dummy);
+}
+
+Double_t AliGenMUONlib::YJpsiCDFscaledPP10( Double_t *px, 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::YJpsiPP( Double_t *px, Double_t */*dummy*/)
{
Double_t AliGenMUONlib::PtUpsilonCDFscaled( Double_t *px, Double_t */*dummy*/ )
{
// Upsilon pT
- const Double_t kpt0 = 8.624;
- const Double_t kxn = 3.499;
+ 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( Double_t *px, Double_t */*dummy*/ )
+{
+// Upsilon pT
+//
+// pp 14 TeV
+//
+// 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::PtUpsilonFlat( Double_t */*px*/, Double_t */*dummy*/ )
+{
+ return 1.;
+}
+
Double_t AliGenMUONlib::PtUpsilonPbPb( Double_t *px, Double_t */*dummy*/)
{
}
+Double_t AliGenMUONlib::YUpsilonCDFscaledPP( Double_t *px, Double_t *dummy)
+{
+ // Upsilon y
+ return AliGenMUONlib::YUpsilonPP(px, dummy);
+
+}
+
+Double_t AliGenMUONlib::YUpsilonFlat( Double_t */*px*/, Double_t */*dummy*/)
+{
+ // Upsilon y
+ return 1.;
+
+}
+
Double_t AliGenMUONlib::YUpsilonPP( Double_t *px, 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);
// 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);
}
-// y-distribution
-Double_t AliGenMUONlib::YCharm( Double_t *px, Double_t */*dummy*/)
+Double_t AliGenMUONlib::PtCharmF0M0S0PP( Double_t *px, Double_t */*dummy*/)
{
-// Charm y
- Double_t *dum=0;
- return YJpsi(px,dum);
-}
+// 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
-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;
- }
- if (ran->Rndm() < 0.5) {ip=-ip;}
-
- return ip;
-}
+// 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
-//
-// Beauty
-//
-//
-// pt-distribution
-//____________________________________________________________
-Double_t AliGenMUONlib::PtBeauty( Double_t *px, Double_t */*dummy*/)
+ 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( Double_t *px, Double_t */*dummy*/)
{
-// Beauty pT
- const Double_t kpt0 = 6.53;
- const Double_t kxn = 3.59;
+// 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);
+ return x/TMath::Power(pass1,kxn)*(1.+c[0]*x+c[1]*x*x)/(1.+c[2]*x*x);
}
-
-Double_t AliGenMUONlib::PtBeautyCentral( Double_t *px, Double_t */*dummy*/)
+Double_t AliGenMUONlib::PtCharmF2M0S0PP( Double_t *px, Double_t */*dummy*/)
{
-// Beauty pT
- const Double_t kpt0 = 6.14;
- const Double_t kxn = 2.93;
+// 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);
+ return x/TMath::Power(pass1,kxn)*(1.+c[0]*x+c[1]*x*x)/(1.+c[2]*x*x);
}
-// y-distribution
-Double_t AliGenMUONlib::YBeauty( Double_t *px, Double_t */*dummy*/)
+Double_t AliGenMUONlib::PtCharmF0M1S0PP( Double_t *px, Double_t */*dummy*/)
{
-// Beauty y
- Double_t *dum=0;
- return YJpsi(px,dum);
+// 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( Double_t *px, 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( Double_t *px, 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( Double_t *px, 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( Double_t *px, 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( Double_t *px, 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( Double_t *px, 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( Double_t *px, 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);
}
-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;
- } else {
- ip=5122;
+// y-distribution
+Double_t AliGenMUONlib::YCharm( Double_t *px, 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);
}
- if (ran->Rndm() < 0.5) {ip=-ip;}
- return ip;
+ return ycharm;
}
+Double_t AliGenMUONlib::YCharmF0M0S0PP( Double_t *px, 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
-typedef Double_t (*GenFunc) (Double_t*, Double_t*);
-GenFunc AliGenMUONlib::GetPt(Int_t param, const char* tname) const
+// 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( Double_t *px, Double_t */*dummy*/)
{
-// Return pointer to pT parameterisation
- TString sname = TString(tname);
- GenFunc func;
- switch (param)
- {
- case kPhi:
- func=PtPhi;
- break;
- case kOmega:
- func=PtOmega;
- break;
- case kEta:
- func=PtEta;
- break;
- case kJpsiFamily:
- case kPsiP:
- 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 {
- func=PtJpsi;
- }
- break;
- case kJpsiFromB:
- func = PtJpsiBPbPb;
- break;
- case kUpsilonFamily:
+// 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( Double_t *px, 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( Double_t *px, 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( Double_t *px, 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( Double_t *px, 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( Double_t *px, 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( Double_t *px, 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( Double_t *px, 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( Double_t *px, 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( Double_t *px, 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( Double_t *px, 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( Double_t *px, 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( Double_t *px, 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( Double_t *px, 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( Double_t *px, 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( Double_t *px, 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( Double_t *px, 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( Double_t *px, 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( Double_t *px, 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( Double_t *px, 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( Double_t *px, 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( Double_t *px, 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( Double_t *px, 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( Double_t *px, 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( Double_t *px, 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;
+}
+Double_t AliGenMUONlib::YBeautyF1M0S0PP( Double_t *px, Double_t */*dummy*/)
+{
+// 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;
+}
+Double_t AliGenMUONlib::YBeautyF2M0S0PP( Double_t *px, Double_t */*dummy*/)
+{
+// 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;
+}
+Double_t AliGenMUONlib::YBeautyF0M1S0PP( Double_t *px, Double_t */*dummy*/)
+{
+// 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;
+}
+Double_t AliGenMUONlib::YBeautyF0M2S0PP( Double_t *px, Double_t */*dummy*/)
+{
+// 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;
+}
+Double_t AliGenMUONlib::YBeautyF0M0S1PP( Double_t *px, Double_t */*dummy*/)
+{
+// 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;
+}
+Double_t AliGenMUONlib::YBeautyF0M0S2PP( Double_t *px, Double_t */*dummy*/)
+{
+// 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;
+}
+Double_t AliGenMUONlib::YBeautyF0M0S3PP( Double_t *px, Double_t */*dummy*/)
+{
+// 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;
+}
+Double_t AliGenMUONlib::YBeautyF0M0S4PP( Double_t *px, 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);
+ }
+
+ return ybeauty;
+}
+Double_t AliGenMUONlib::YBeautyF0M0S5PP( Double_t *px, Double_t */*dummy*/)
+{
+// 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;
+}
+Double_t AliGenMUONlib::YBeautyF0M0S6PP( Double_t *px, Double_t */*dummy*/)
+{
+// Beauty y
+// 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)
+{
+// Beauty Composition
+ Float_t random;
+ Int_t ip;
+ 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;
+ }
+
+ return ip;
+}
+
+
+typedef Double_t (*GenFunc) (Double_t*, Double_t*);
+GenFunc AliGenMUONlib::GetPt(Int_t param, const char* tname) const
+{
+// Return pointer to pT parameterisation
+ TString sname = TString(tname);
+ GenFunc func;
+ switch (param)
+ {
+ case kPhi:
+ func=PtPhi;
+ break;
+ case kOmega:
+ func=PtOmega;
+ break;
+ case kEta:
+ func=PtEta;
+ break;
+ case kJpsiFamily:
+ case kPsiP:
+ 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 scaled old") {
+ func=PtJpsiCDFscaledold;
+ } else if (sname == "CDF pp old") {
+ func=PtJpsiCDFscaledPPold;
+ } else if (sname == "Flat") {
+ func=PtJpsiFlat;
+ } else {
+ func=PtJpsi;
+ }
+ break;
+ case kJpsiFromB:
+ func = PtJpsiBPbPb;
+ break;
+ case kUpsilonFamily:
case kUpsilonP:
case kUpsilonPP:
case kUpsilon:
func=PtUpsilonPP;
} else if (sname == "CDF scaled") {
func=PtUpsilonCDFscaled;
+ } else if (sname == "CDF pp") {
+ func=PtUpsilonCDFscaledPP;
+ } else if (sname == "Flat") {
+ func=PtUpsilonFlat;
} else {
func=PtUpsilon;
}
break;
case kCharm:
- if (sname == "central") {
+ 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:
- if (sname == "central") {
+ 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;
case kKaon:
func=PtKaon;
break;
+ case kChic0:
+ func=PtChic0;
+ break;
+ case kChic1:
+ func=PtChic1;
+ break;
+ case kChic2:
+ func=PtChic2;
+ break;
+ case kChic:
+ func=PtChic;
+ break;
default:
func=0;
printf("<AliGenMUONlib::GetPt> unknown parametrisation\n");
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 scaled old") {
+ func=YJpsiCDFscaledold;
+ } else if (sname == "CDF pp old") {
+ func=YJpsiCDFscaledPPold;
+ } else if (sname == "Flat") {
+ func=YJpsiFlat;
} else {
func=YJpsi;
}
func = YUpsilonPP;
} else if (sname == "CDF scaled") {
func=YUpsilonCDFscaled;
+ } else if (sname == "CDF pp") {
+ func=YUpsilonCDFscaledPP;
+ } 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;
case kKaon:
func=YKaon;
break;
+ case kChic0:
+ func=YChic0;
+ break;
+ case kChic1:
+ func=YChic1;
+ break;
+ case kChic2:
+ func=YChic2;
+ break;
+ case kChic:
+ func=YChic;
+ break;
default:
func=0;
printf("<AliGenMUONlib::GetY> unknown parametrisation\n");
}
return func;
}
+
+//
+// Chi
+//
+//
+// pt-distribution
+//____________________________________________________________
+Double_t AliGenMUONlib::PtChic0( Double_t *px, 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( Double_t *px, 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( Double_t *px, 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( Double_t *px, 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(Double_t *py, 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(Double_t *py, 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(Double_t *py, 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(Double_t *py, 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
{
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("<AliGenMUONlib::GetIp> unknown parametrisation\n");
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff