1 #ifndef ALILHCPROCESSIBS_H
2 #define ALILHCPROCESSIBS_H
3 /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * See cxx source for full Copyright notice */
9 // Realisation of AliLhcProcess for the fast simulation of the
10 // Intra Beam Scattering process
11 // in transverse and longitudinal direction.
12 // Author: Andreas Morsch
13 // andreas.morsch@cern.ch
16 #include "AliLhcProcess.h"
20 class AliLhcProcessIBS : public AliLhcProcess
23 AliLhcProcessIBS(AliLHC* lhc, const char* name, const char* title);
24 virtual ~AliLhcProcessIBS();
25 virtual void SetCrossSection(Float_t sig) {fCrossSection = sig*1.e-24;}
27 virtual void Evolve(Float_t dt);
28 virtual void SetMonitor(Int_t n);
29 virtual void Record();
30 virtual void DrawPlots();
31 AliLhcProcessIBS & operator=(const AliLhcProcessIBS & rhs);
33 Float_t fCrossSection; // Interaction cross section
34 TList * fIRegions; // Interaction Regions
35 AliLhcBeam* fBeam[2]; // Beams
36 Float_t fR[2]; // elem. ion radius
37 Float_t fE[2]; // ion radius
38 Float_t fTaux; // transverse time constant
39 Float_t fTaue; // longitudinal time constant
40 Float_t* fTauxArray; // [fNmax]
41 Float_t* fTaueArray; // [fNmax]
44 ClassDef(AliLhcProcessIBS,1) // LHC Process: Intra Beam Scattering