| 1 |
/* |
| 2 |
* TofBetaRigHeCut.cpp |
| 3 |
* |
| 4 |
* Created on: 14/set/2009 |
| 5 |
* Author: Sergio Ricciarini, Nicola Mori |
| 6 |
*/ |
| 7 |
|
| 8 |
/*! @file TofBetaRigHeCut.cpp The TofBetaRigHeCut class implementation file */ |
| 9 |
|
| 10 |
#include "TofBetaRigHeCut.h" |
| 11 |
|
| 12 |
int TofBetaRigHeCut::Check(PamLevel2 *event) { |
| 13 |
|
| 14 |
TrkTrack *trkTrack = event->GetTrack(0)->GetTrkTrack(); |
| 15 |
|
| 16 |
Int_t seqno = trkTrack->GetSeqNo(); |
| 17 |
Int_t ntrack_tof = 0; |
| 18 |
for (Int_t i = 0; i < event->GetToFLevel2()->ntrk(); i++) { |
| 19 |
if (event->GetToFLevel2()->GetToFTrkVar(i)->trkseqno == seqno) |
| 20 |
ntrack_tof = i; |
| 21 |
} |
| 22 |
Float_t tofBeta = fabs(event->GetToFLevel2()->CalcBeta(ntrack_tof, 10., 10., 20.)); // beta[12] |
| 23 |
|
| 24 |
// Float_t rigMod = _mass*fabs(beta)*pow((1-pow(beta,2)),-0.5)/abs(_charge); |
| 25 |
|
| 26 |
Int_t _charge = 2; |
| 27 |
Float_t mass_4He = 3.7274; // GeV (http://hyperphysics.phy-astr.gsu.edu/Hbase/pertab/He.html) |
| 28 |
Float_t mass_3He = 2.8084; // GeV (http://hyperphysics.phy-astr.gsu.edu/Hbase/pertab/He.html) |
| 29 |
Float_t ZR2 = (trkTrack->GetRigidity() * _charge) * (trkTrack->GetRigidity() * _charge); |
| 30 |
|
| 31 |
Float_t trkBeta_4He = sqrt(ZR2 / (ZR2 + mass_4He * mass_4He)); |
| 32 |
|
| 33 |
Float_t trkBeta_3He = sqrt(ZR2 / (ZR2 + mass_3He * mass_3He)); |
| 34 |
|
| 35 |
if ((fabs(tofBeta - trkBeta_4He) > _threshold * tofBeta) && (fabs(tofBeta - trkBeta_3He) > _threshold * tofBeta)) { |
| 36 |
return 0; |
| 37 |
} |
| 38 |
|
| 39 |
return CUTOK; |
| 40 |
} |
Parent Directory
| 
Revision Log