/*
$Log$
+Revision 1.12 2001/03/09 13:01:41 morsch
+- enum constants for paramterisation type (particle family) moved to AliGen*lib.h
+- use AliGenGSIlib::kUpsilon, AliGenPHOSlib::kEtaPrime to access the constants
+
+Revision 1.11 2000/11/30 07:12:50 alibrary
+Introducing new Rndm and QA classes
+
+Revision 1.10 2000/06/29 21:08:27 morsch
+All paramatrisation libraries derive from the pure virtual base class AliGenLib.
+This allows to pass a pointer to a library directly to AliGenParam and avoids the
+use of function pointers in Config.C.
+
+Revision 1.9 2000/06/14 15:20:56 morsch
+Include clean-up (IH)
+
+Revision 1.8 2000/06/09 20:32:11 morsch
+All coding rule violations except RS3 corrected
+
+Revision 1.7 2000/05/02 08:12:13 morsch
+Coding rule violations corrected.
+
Revision 1.6 1999/09/29 09:24:14 fca
Introduction of the Copyright and cvs Log
*/
+#include "TMath.h"
+#include "TRandom.h"
+
#include "AliGenMUONlib.h"
-#include "AliRun.h"
+
ClassImp(AliGenMUONlib)
//
// Pions
Double_t AliGenMUONlib::YPion( Double_t *py, Double_t *dummy)
{
// Pion y
+ Double_t y=TMath::Abs(*py);
+/*
const Double_t ka = 7000.;
const Double_t kdy = 4.;
-
- Double_t y=TMath::Abs(*py);
- //
Double_t ex = y*y/(2*kdy*kdy);
return ka*TMath::Exp(-ex);
+*/
+ return 1.16526e+04+y*-3.79886e+03+y*y*4.31130e+02;
+
}
// particle composition
//
-Int_t AliGenMUONlib::IpPion()
+Int_t AliGenMUONlib::IpPion(TRandom *ran)
{
// Pion composition
- Float_t random[1];
- gMC->Rndm(random,1);
- if (random[0] < 0.5) {
+ if (ran->Rndm() < 0.5) {
return 211;
} else {
return -211;
Double_t AliGenMUONlib::YKaon( Double_t *py, Double_t *dummy)
{
// Kaon y
+ Double_t y=TMath::Abs(*py);
+/*
const Double_t ka = 1000.;
const Double_t kdy = 4.;
-
-
- Double_t y=TMath::Abs(*py);
//
Double_t ex = y*y/(2*kdy*kdy);
return ka*TMath::Exp(-ex);
+*/
+
+ return 1.16526e+04+y*-3.79886e+03+y*y*4.31130e+02;
}
// particle composition
//
-Int_t AliGenMUONlib::IpKaon()
+Int_t AliGenMUONlib::IpKaon(TRandom *ran)
{
// Kaon composition
- Float_t random[1];
- gMC->Rndm(random,1);
- if (random[0] < 0.5) {
+ if (ran->Rndm() < 0.5) {
return 321;
} else {
return -321;
}
// particle composition
//
-Int_t AliGenMUONlib::IpJpsi()
+Int_t AliGenMUONlib::IpJpsi(TRandom *)
{
// J/Psi composition
return 443;
}
// particle composition
//
-Int_t AliGenMUONlib::IpUpsilon()
+Int_t AliGenMUONlib::IpUpsilon(TRandom *)
{
// y composition
return 553;
}
// particle composition
//
-Int_t AliGenMUONlib::IpPhi()
+Int_t AliGenMUONlib::IpPhi(TRandom *)
{
// Phi composition
return 41;
// Charm pT
const Double_t kpt0 = 4.08;
const Double_t kxn = 9.40;
+
Double_t x=*px;
//
- Double_t pass1 = 1.+(x/kpt0)*(x/kpt0);
+ Double_t pass1 = 1.+(x/kpt0);
return x/TMath::Power(pass1,kxn);
}
// y-distribution
return YJpsi(px,dum);
}
-Int_t AliGenMUONlib::IpCharm()
+Int_t AliGenMUONlib::IpCharm(TRandom *ran)
{
// Charm composition
- Float_t random[2];
+ Float_t random;
Int_t ip;
// 411,421,431,4122
- gMC->Rndm(random,2);
- if (random[0] < 0.5) {
+ random = ran->Rndm();
+ if (random < 0.5) {
ip=411;
- } else if (random[0] < 0.75) {
+ } else if (random < 0.75) {
ip=421;
- } else if (random[0] < 0.90) {
+ } else if (random < 0.90) {
ip=431;
} else {
ip=4122;
}
- if (random[1] < 0.5) {ip=-ip;}
+ if (ran->Rndm() < 0.5) {ip=-ip;}
return ip;
}
return YJpsi(px,dum);
}
-Int_t AliGenMUONlib::IpBeauty()
+Int_t AliGenMUONlib::IpBeauty(TRandom *ran)
{
// Beauty Composition
- Float_t random[2];
+ Float_t random;
Int_t ip;
- gMC->Rndm(random,2);
- if (random[0] < 0.5) {
+ random = ran->Rndm();
+ if (random < 0.5) {
ip=511;
- } else if (random[0] < 0.75) {
+ } else if (random < 0.75) {
ip=521;
- } else if (random[0] < 0.90) {
+ } else if (random < 0.90) {
ip=531;
} else {
ip=5122;
}
- if (random[1] < 0.5) {ip=-ip;}
+ if (ran->Rndm() < 0.5) {ip=-ip;}
return ip;
}
typedef Double_t (*GenFunc) (Double_t*, Double_t*);
-GenFunc AliGenMUONlib::GetPt(Param_t param)
+GenFunc AliGenMUONlib::GetPt(Int_t param, const char* tname)
{
// Return pointer to pT parameterisation
GenFunc func;
switch (param)
{
- case phi_p:
+ case kPhi:
func=PtPhi;
break;
- case jpsi_p:
+ case kJpsi:
func=PtJpsi;
break;
- case upsilon_p:
+ case kUpsilon:
func=PtUpsilon;
break;
- case charm_p:
+ case kCharm:
func=PtCharm;
break;
- case beauty_p:
+ case kBeauty:
func=PtBeauty;
break;
- case pion_p:
+ case kPion:
func=PtPion;
break;
- case kaon_p:
+ case kKaon:
func=PtKaon;
break;
default:
return func;
}
-GenFunc AliGenMUONlib::GetY(Param_t param)
+GenFunc AliGenMUONlib::GetY(Int_t param, const char* tname)
{
// Return pointer to y- parameterisation
GenFunc func;
switch (param)
{
- case phi_p:
+ case kPhi:
func=YPhi;
break;
- case jpsi_p:
+ case kJpsi:
func=YJpsi;
break;
- case upsilon_p:
+ case kUpsilon:
func=YUpsilon;
break;
- case charm_p:
+ case kCharm:
func=YCharm;
break;
- case beauty_p:
+ case kBeauty:
func=YBeauty;
break;
- case pion_p:
+ case kPion:
func=YPion;
break;
- case kaon_p:
+ case kKaon:
func=YKaon;
break;
default:
}
return func;
}
-typedef Int_t (*GenFuncIp) ();
-GenFuncIp AliGenMUONlib::GetIp(Param_t param)
+typedef Int_t (*GenFuncIp) (TRandom *);
+GenFuncIp AliGenMUONlib::GetIp(Int_t param, const char* tname)
{
// Return pointer to particle type parameterisation
GenFuncIp func;
switch (param)
{
- case phi_p:
+ case kPhi:
func=IpPhi;
break;
- case jpsi_p:
+ case kJpsi:
func=IpJpsi;
break;
- case upsilon_p:
+ case kUpsilon:
func=IpUpsilon;
break;
- case charm_p:
+ case kCharm:
func=IpCharm;
break;
- case beauty_p:
+ case kBeauty:
func=IpBeauty;
break;
- case pion_p:
+ case kPion:
func=IpPion;
break;
- case kaon_p:
+ case kKaon:
func=IpKaon;
break;
default:
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff