/*
$Log$
+Revision 1.20 2003/03/13 11:54:39 morsch
+Limited pT range for parameterized Upsilon and J/Psi pT distributions.
+
+Revision 1.19 2003/02/24 16:46:11 morsch
+New parameterisation for Psi and Upsilon (PbPb)
+
+Revision 1.18 2002/11/07 09:13:42 morsch
+Use "Vogt" to label new distributions.
+
+Revision 1.17 2002/11/07 09:06:10 morsch
+J/Psi and Upsilon pt and y distributions from R. Vogt 2002 added.
+
Revision 1.16 2002/10/14 14:55:35 hristov
Merging the VirtualMC branch to the main development branch (HEAD)
Double_t AliGenMUONlib::PtJpsiPbPb( Double_t *px, Double_t *dummy)
{
-// J/Psi pT
+// J/Psi pT spectrum
//
// R. Vogt 2002
// PbPb 5.5 TeV
// MRST HO
// mc = 1.4 GeV, pt-kick 1 GeV
//
-
- Float_t ptJpsi[100] = {
- 0.0000e-01, 4.5870e+01, 6.5200e+01, 7.1740e+01, 6.5090e+01,
- 5.5070e+01, 4.9420e+01, 3.9780e+01, 3.2390e+01, 2.8120e+01,
- 2.3870e+01, 1.9540e+01, 1.6510e+01, 1.4180e+01, 1.2050e+01,
- 1.0390e+01, 8.7970e+00, 7.8680e+00, 6.7710e+00, 5.9360e+00,
- 5.3460e+00, 4.5670e+00, 4.6500e+00, 3.9360e+00, 3.5070e+00,
- 3.2070e+00, 2.8310e+00, 2.6340e+00, 2.4900e+00, 2.2410e+00,
- 2.1090e+00, 1.9070e+00, 1.7360e+00, 1.6120e+00, 1.5450e+00,
- 1.4350e+00, 1.3890e+00, 1.2610e+00, 1.0880e+00, 1.0930e+00,
- 1.0680e+00, 9.2500e-01, 8.6790e-01, 8.1790e-01, 7.9770e-01,
- 7.4660e-01, 7.3110e-01, 6.5120e-01, 6.8140e-01, 5.7960e-01,
- 5.8210e-01, 5.4640e-01, 5.1700e-01, 5.0760e-01, 4.8280e-01,
- 4.5360e-01, 4.4910e-01, 4.2410e-01, 4.2100e-01, 3.9530e-01,
- 3.7220e-01, 3.4840e-01, 3.4550e-01, 3.3000e-01, 3.1670e-01,
- 3.1470e-01, 2.8920e-01, 2.7650e-01, 2.6860e-01, 2.5390e-01,
- 2.4190e-01, 2.5200e-01, 2.2960e-01, 2.2540e-01, 2.0950e-01,
- 2.0250e-01, 1.8720e-01, 1.8200e-01, 1.7860e-01, 1.8290e-01,
- 1.6970e-01, 1.7130e-01, 1.6310e-01, 1.5500e-01, 1.5100e-01,
- 1.5770e-01, 1.4240e-01, 1.4560e-01, 1.3330e-01, 1.4190e-01,
- 1.2010e-01, 1.2430e-01, 1.2430e-01, 1.1340e-01, 1.1840e-01,
- 1.1380e-01, 1.0330e-01, 1.0130e-01, 1.0390e-01, 9.5810e-02
+ Float_t x = px[0];
+ Float_t c[8] = {
+ -2.13098e+00, 9.46552e+00, -5.06799e+00, 1.27260e+00,
+ -1.83806e-01, 1.55853e-02, -7.23241e-04, 1.42105e-05
};
- Float_t x = px[0] * px[0];
- if (x < 1.5 || x > 100) {
- return 0.0;
+
+ 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::PtJpsiPP( Double_t *px, Double_t *dummy)
+{
+// J/Psi pT spectrum
+//
+// R. Vogt 2002
+// pp 14 TeV
+// MRST HO
+// mc = 1.4 GeV, pt-kick 1 GeV
+//
+ Float_t x = px[0];
+ Float_t c[4] = {8.47471e+00, -1.93567e+00, 1.50271e-01, -5.51212e-03};
+
+ Double_t y;
+ if (x < 10.) {
+ Int_t j;
+ y = c[j = 3];
+ while (j > 0) y = y * x +c[--j];
+ y = x * TMath::Exp(y);
} else {
- Float_t y = Interpolate(x, ptJpsi, 0.5, 1., 100, 4);
- return px[0] * y;
+ y = 0.;
}
+ return y;
}
+
//
// y-distribution
//____________________________________________________________
// MRST HO
// mc = 1.4 GeV, pt-kick 1 GeV
//
+ Double_t c[5] = {-6.03425e+02, 4.98257e+02, -1.38794e+02, 1.62209e+01, -6.85955e-01};
+ Double_t x = TMath::Abs(px[0]);
+ Double_t y;
+
+ if (x < 4.) {
+ y = 31.754;
+ } else if (x < 6) {
+ Int_t j;
+ y = c[j = 4];
+ while (j > 0) y = y * x + c[--j];
+ } else {
+ y =0.;
+ }
+
+ return y;
+}
+
+Double_t AliGenMUONlib::YJpsiPP( Double_t *px, Double_t *dummy)
+{
- Float_t yJpsi[62] =
- {
- 0.3981E-03, 0.1169E-01, 0.6143E-01, 0.3554E+00, 0.1249E+01
- , 0.1677E+01, 0.3634E+01, 0.5414E+01, 0.8242E+01, 0.1102E+02
- , 0.1353E+02, 0.1964E+02, 0.2357E+02, 0.2662E+02, 0.3023E+02
- , 0.3250E+02, 0.3137E+02, 0.3243E+02, 0.3120E+02, 0.3249E+02
- , 0.3166E+02, 0.3104E+02, 0.3203E+02, 0.3149E+02, 0.3117E+02
- , 0.3210E+02, 0.3170E+02, 0.3279E+02, 0.3079E+02, 0.3208E+02
- , 0.3218E+02, 0.3218E+02, 0.3208E+02, 0.3079E+02, 0.3279E+02
- , 0.3170E+02, 0.3210E+02, 0.3118E+02, 0.3149E+02, 0.3203E+02
- , 0.3104E+02, 0.3167E+02, 0.3250E+02, 0.3120E+02, 0.3243E+02
- , 0.3137E+02, 0.3250E+02, 0.3022E+02, 0.2662E+02, 0.2357E+02
- , 0.1964E+02, 0.1353E+02, 0.1102E+02, 0.8242E+01, 0.5414E+01
- , 0.3634E+01, 0.1677E+01, 0.1249E+01, 0.3554E+00, 0.6142E-01
- , 0.1169E-01, 0.3981E-03};
+//
+// J/Psi y
+//
+//
+// R. Vogt 2002
+// pp 14 TeV
+// MRST HO
+// mc = 1.4 GeV, pt-kick 1 GeV
+//
- return Interpolate(px[0], yJpsi, -7.625, 0.25, 62, 2);
+ Double_t c[5] = {1.38532e+00, 1.00596e+02, -3.46378e+01, 3.94172e+00, -1.48319e-01};
+ Double_t x = TMath::Abs(px[0]);
+ Double_t y;
+
+ if (x < 2.5) {
+ y = 96.455 - 0.8483 * x * x;
+ } else if (x < 7.9) {
+ Int_t j;
+ y = c[j = 4];
+ while (j > 0) y = y * x + c[--j];
+ } else {
+ y =0.;
+ }
+
+ return y;
}
// particle composition
// 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;
+}
- Float_t ptUps[100] =
- {
- 0.0000e-01, -1.5290e-02, 2.6020e-01, 3.4220e-01, 3.3710e-01,
- 3.1880e-01, 3.3420e-01, 2.7740e-01, 2.3730e-01, 2.0640e-01,
- 1.7690e-01, 1.6190e-01, 1.4500e-01, 1.3310e-01, 1.1440e-01,
- 1.0800e-01, 1.0210e-01, 8.4690e-02, 8.0050e-02, 7.0710e-02,
- 6.4160e-02, 6.5200e-02, 6.6890e-02, 6.0600e-02, 5.4030e-02,
- 5.1140e-02, 4.6120e-02, 4.4800e-02, 4.2490e-02, 4.1440e-02,
- 4.0310e-02, 3.7110e-02, 3.5890e-02, 3.5420e-02, 3.0370e-02,
- 2.9970e-02, 3.0770e-02, 2.6380e-02, 2.7740e-02, 2.6690e-02,
- 2.4210e-02, 2.5200e-02, 2.3760e-02, 2.1370e-02, 2.2290e-02,
- 2.2700e-02, 2.0110e-02, 1.9320e-02, 1.8830e-02, 1.9910e-02,
- 1.9740e-02, 1.8460e-02, 1.8240e-02, 1.6740e-02, 1.6140e-02,
- 1.7340e-02, 1.5950e-02, 1.5430e-02, 1.4780e-02, 1.2750e-02,
- 1.4370e-02, 1.2810e-02, 1.2900e-02, 1.1070e-02, 1.1830e-02,
- 1.1150e-02, 1.1260e-02, 1.1610e-02, 1.0700e-02, 1.1600e-02,
- 1.0390e-02, 1.0280e-02, 1.0180e-02, 1.0030e-02, 9.6050e-03,
- 8.8050e-03, 8.9680e-03, 9.0120e-03, 8.4110e-03, 8.6660e-03,
- 8.3060e-03, 8.5850e-03, 8.2600e-03, 8.3800e-03, 8.4200e-03,
- 7.5690e-03, 7.2100e-03, 7.1230e-03, 7.3350e-03, 7.1980e-03,
- 6.7500e-03, 6.6190e-03, 6.3370e-03, 6.6270e-03, 6.8290e-03,
- 6.0880e-03, 6.6310e-03, 6.0490e-03, 5.8900e-03, 5.6100e-03
- };
- Float_t x = px[0] * px[0];
- if (x < 1.5 || x > 100) {
- return 0.0;
+Double_t AliGenMUONlib::PtUpsilonPP( Double_t *px, 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 {
- Float_t y = Interpolate(x, ptUps, 0.5, 1., 100, 4);
- return px[0] * y;
+ y = 0.;
}
+ return y;
}
//
// mc = 1.4 GeV, pt-kick 1 GeV
//
- Float_t yUps[52] =
- {
- 0.000000, 0.000065, 0.000767, 0.004332, 0.014790,
- 0.029370, 0.052060, 0.077930, 0.122500, 0.135800,
- 0.184000, 0.207900, 0.228300, 0.258500, 0.269500,
- 0.288500, 0.316200, 0.304100, 0.315800, 0.323300,
- 0.322400, 0.322600, 0.345500, 0.338100, 0.331900,
- 0.343700, 0.343700, 0.331900, 0.338100, 0.345500,
- 0.322600, 0.322400, 0.323300, 0.315800, 0.304100,
- 0.316200, 0.288500, 0.269500, 0.258500, 0.228300,
- 0.207900, 0.184000, 0.135800, 0.122500, 0.077930,
- 0.052060, 0.029380, 0.014780, 0.004332, 0.000767,
- 0.6479E-04, 0.1013E-06
- };
-
+ 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.;
+ 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)
+{
- return Interpolate(px[0], yUps, -6.5, 0.25, 52, 2);
+//
+// Upsilon y
+//
+//
+// R. Vogt 2002
+// p p 14. TeV
+// MRST HO
+// mc = 1.4 GeV, pt-kick 1 GeV
+//
+ 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.;
+ Int_t j;
+ Double_t y = c[j = 6];
+ while (j > 0) y = y * x +c[--j];
+ return y;
}
// particle composition
func=PtEta;
break;
case kJpsi:
- if (sname == "PbPb") {
+ if (sname == "Vogt" || sname == "Vogt PbPb") {
func=PtJpsiPbPb;
+ } else if (sname == "Vogt pp") {
+ func=PtJpsiPP;
} else {
func=PtJpsi;
}
break;
case kUpsilon:
- if (sname == "PbPb") {
+ if (sname == "Vogt" || sname == "Vogt PbPb") {
func=PtUpsilonPbPb;
+ } else if (sname == "Vogt pp") {
+ func=PtUpsilonPP;
} else {
func=PtUpsilon;
}
func=YOmega;
break;
case kJpsi:
- if (sname == "PbPb") {
+ if (sname == "Vogt" || sname == "Vogt PbPb") {
func=YJpsiPbPb;
+ } else if (sname == "Vogt pp"){
+ func=YJpsiPP;
} else {
func=YJpsi;
}
+
break;
case kUpsilon:
- if (sname == "PbPb") {
+ if (sname == "Vogt" || sname == "Vogt PbPb") {
func=YUpsilonPbPb;
+ } else if (sname == "Vogt pp") {
+ func = YUpsilonPP;
} else {
func=YUpsilon;
}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff