DragonRoot: THit.cxx Source File

00001 //  THit.cxx.
00010 #include <iostream>
00011 
00012 #include "THit.h"
00013 
00014 // Class implementation tag for ROOT.
00015 //
00016 ClassImp(THit)
00017 
00018 using std::cout;
00019 using std::endl;
00020 
00021 THit::THit(const Char_t *detName, Float_t e, Float_t t)
00022   : fDetector(detName), fEnergy(e), fTime(t)
00023 {
00026 }
00027 
00028 THit::~THit()
00029 {
00032 }
00033 
00034 void THit::Print(const Char_t *option) const
00035 {
00039   cout << "energy   " << fEnergy      << endl
00040        << "time     " << fTime        << endl
00041        << "detector " << fDetector    << endl;
00042   fPosition.Print();
00043 }
00044 
00045 void THit::SetPosition(Float_t x, Float_t y, Float_t z)
00046 {
00052   fPosition.SetXYZ(x, y, z);
00053 }
00054 
00055 TVector3 THit::GetMomentum() const
00056 {
00060   return fEnergy * fPosition.Unit();
00061 }
00062 
00063 Double_t THit::DopplerCorrect(Float_t energy, Float_t mass) const
00064 {
00070   return fEnergy * (1 - (TMath::Sqrt(2 * energy / (mass * 931.494))
00071                          * fPosition.CosTheta()));
00072 }