StRoot: StarClassLibrary/BetheBloch.h Source File

00001 //
00002 // $Id: BetheBloch.h,v 1.7 2004/03/18 18:57:43 fisyak Exp $
00003 //
00004 // Description:
00005 // Function to return the expected dE/dx as a function of
00006 // beta*gamma for the TPC
00007 // 
00008 // $Log: BetheBloch.h,v $
00009 // Revision 1.7  2004/03/18 18:57:43  fisyak
00010 // Make only warning about BetheBloch::BetheBloch
00011 //
00012 // Revision 1.6  2003/05/22 21:01:01  perev
00013 // Remove redundant dependency
00014 //
00015 // Revision 1.5  2003/02/15 02:24:57  fisyak
00016 // Add static function Girrf for GEANT3 prediction for dE/dx
00017 //
00018 // Revision 1.4  2001/04/24 15:36:30  fisyak
00019 // Restore Manuel's parameterization, move scale of dE/dx from 2.4 to 1.4 keV/cm for MIP
00020 //
00021 // Revision 1.2  2000/12/21 00:59:51  fisyak
00022 // Add parameteriation for Bethe Bloch depending on track length
00023 //
00024 // Revision 1.1  2000/07/04 17:35:08  calderon
00025 // Initial Revision
00026 // Bethe Bloch curve for the TPC with initial preliminary tuning
00027 //
00028 //
00029 //
00030 
00031 #ifndef BetheBloch_hh
00032 #define BetheBloch_hh
00033 #include "Rtypes.h"
00034 #include <map>
00035 #ifndef ST_NO_NAMESPACES
00036 using std::map;
00037 #endif
00038 
00039 class BetheBloch {
00040     map<double, double> mMap; 
00041 public:
00042     BetheBloch();
00043     virtual ~BetheBloch();
00044     static   int noWarn;
00045     double   operator() (double);
00046     static   Double_t Sirrf(Double_t poverm, Double_t Length=60., Int_t k=0);
00047     static   Double_t Girrf(Double_t poverm, Double_t Tmin=1.e-3, Int_t k=0);
00048 };
00049 #endif