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1 | /************************************************************************** |
| 2 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * |
| 3 | * * |
| 4 | * Author: The ALICE Off-line Project. * |
| 5 | * Contributors are mentioned in the code where appropriate. * |
| 6 | * * |
| 7 | * Permission to use, copy, modify and distribute this software and its * |
| 8 | * documentation strictly for non-commercial purposes is hereby granted * |
| 9 | * without fee, provided that the above copyright notice appears in all * |
| 10 | * copies and that both the copyright notice and this permission notice * |
| 11 | * appear in the supporting documentation. The authors make no claims * |
| 12 | * about the suitability of this software for any purpose. It is * |
| 13 | * provided "as is" without express or implied warranty. * |
| 14 | **************************************************************************/ |
| 15 | |
| 16 | #include <TObject.h> |
| 17 | #include <TMath.h> |
| 18 | #include <TParticle.h> |
| 19 | |
| 20 | #include "AliKineTrackCuts.h" |
| 21 | |
| 22 | // |
| 23 | // Class for simple Kinematic cuts on |
| 24 | // particles (tracks) from Kinematic stack (TParticle) |
| 25 | // MC Simulation |
| 26 | // |
| 27 | |
| 28 | |
| 29 | //____________________________________________________________________ |
| 30 | ClassImp(AliKineTrackCuts) |
| 31 | |
| 32 | //____________________________________________________________________ |
| 33 | AliKineTrackCuts::AliKineTrackCuts(const Char_t* name, const Char_t* title) : |
| 34 | AliAnalysisCuts(name,title), |
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35 | fOnlyFinalParticles(kFALSE), |
| 36 | fOnlyPrimary(kFALSE), |
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37 | fPMin(0), |
| 38 | fPMax(0), |
| 39 | fPtMin(0), |
| 40 | fPtMax(0), |
| 41 | fPxMin(0), |
| 42 | fPxMax(0), |
| 43 | fPyMin(0), |
| 44 | fPyMax(0), |
| 45 | fPzMin(0), |
| 46 | fPzMax(0), |
| 47 | fEtaMin(0), |
| 48 | fEtaMax(0), |
| 49 | fRapMin(0), |
| 50 | fRapMax(0) |
| 51 | { |
| 52 | // |
| 53 | // constructor |
| 54 | // |
| 55 | // setting default cuts |
| 56 | SetPRange(); |
| 57 | SetPtRange(); |
| 58 | SetPxRange(); |
| 59 | SetPyRange(); |
| 60 | SetPzRange(); |
| 61 | SetEtaRange(); |
| 62 | SetRapRange(); |
| 63 | } |
| 64 | |
| 65 | |
| 66 | |
| 67 | //____________________________________________________________________ |
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68 | Bool_t AliKineTrackCuts::IsSelected(TObject* obj) |
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69 | { |
| 70 | |
| 71 | TParticle * part = (TParticle *)obj; |
| 72 | |
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73 | // only final particles |
| 74 | if( fOnlyFinalParticles && part->GetStatusCode() !=1 ) return kFALSE; |
| 75 | if( fOnlyPrimary && part->IsPrimary() !=1 ) return kFALSE; |
| 76 | |
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77 | // getting the kinematic variables of the track |
| 78 | Float_t momentum = part->P(); |
| 79 | Float_t pt = part->Pt(); |
| 80 | Float_t energy = part->Energy(); |
| 81 | |
| 82 | //y-eta related calculations |
| 83 | Float_t eta = part->Eta(); |
| 84 | Float_t y = -100.; |
| 85 | if((energy != TMath::Abs(part->Pz()))&&(momentum != 0)) |
| 86 | y = 0.5*TMath::Log((energy + part->Pz())/(energy - part->Pz())); |
| 87 | |
| 88 | if((momentum < fPMin) || (momentum > fPMax)) return kFALSE; |
| 89 | if((pt < fPtMin) || (pt > fPtMax)) return kFALSE; |
| 90 | if((part->Px() < fPxMin) || (part->Px() > fPxMax)) return kFALSE; |
| 91 | if((part->Py() < fPyMin) || (part->Py() > fPyMax)) return kFALSE; |
| 92 | if((part->Pz() < fPzMin) || (part->Pz() > fPzMax)) return kFALSE; |
| 93 | if((eta < fEtaMin) || (eta > fEtaMax)) return kFALSE; |
| 94 | if((y < fRapMin) || (y > fRapMax)) return kFALSE; |
| 95 | |
| 96 | return kTRUE; |
| 97 | } |
| 98 | |
| 99 | |
| 100 | |
| 101 | |
| 102 | |
| 103 | |
| 104 | |
| 105 | |
| 106 | |
git://git.uio.no / u / mrichter / AliRoot.git / blame