| b2a297fa |
1 | /************************************************************************* |
| 2 | * Copyright(c) 1998-2009, 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 | /////////////////////////////////////////////////////////////////////////// |
| 17 | // // |
| 18 | // Dielectron Pair class. Internally it makes use of AliKFParticle. // |
| 19 | // // |
| 20 | /////////////////////////////////////////////////////////////////////////// |
| 21 | |
| 22 | |
| 23 | #include "AliDielectronPair.h" |
| 24 | #include "AliVTrack.h" |
| 25 | |
| 26 | ClassImp(AliDielectronPair) |
| 27 | |
| 28 | AliDielectronPair::AliDielectronPair() : |
| 29 | fOpeningAngle(-1), |
| 30 | fType(-1), |
| 31 | fPair(), |
| 32 | fRefD1(), |
| 33 | fRefD2() |
| 34 | { |
| 35 | // |
| 36 | // Default Constructor |
| 37 | // |
| 38 | |
| 39 | } |
| 40 | |
| 41 | //______________________________________________ |
| 42 | AliDielectronPair::AliDielectronPair(AliVTrack * const particle1, Int_t pid1, |
| 43 | AliVTrack * const particle2, Int_t pid2, Char_t type) : |
| 44 | fOpeningAngle(-1), |
| 45 | fType(type), |
| 46 | fPair(), |
| 47 | fRefD1(), |
| 48 | fRefD2() |
| 49 | { |
| 50 | // |
| 51 | // Constructor with tracks |
| 52 | // |
| 53 | SetTracks(particle1, pid1, particle2, pid2); |
| 54 | } |
| 55 | |
| 56 | //______________________________________________ |
| 57 | AliDielectronPair::~AliDielectronPair() |
| 58 | { |
| 59 | // |
| 60 | // Default Destructor |
| 61 | // |
| 62 | |
| 63 | } |
| 64 | |
| 65 | //______________________________________________ |
| 66 | void AliDielectronPair::SetTracks(AliVTrack * const particle1, Int_t pid1, |
| 67 | AliVTrack * const particle2, Int_t pid2) |
| 68 | { |
| 69 | // |
| 70 | // Set the tracks to the pair KF particle |
| 71 | // |
| 72 | fPair.Initialize(); |
| 73 | |
| 74 | AliKFParticle kf1(*particle1,pid1); |
| 75 | AliKFParticle kf2(*particle2,pid2); |
| 76 | |
| 77 | fPair.AddDaughter(kf1); |
| 78 | fPair.AddDaughter(kf2); |
| 79 | |
| 80 | fRefD1 = particle1; |
| 81 | fRefD2 = particle2; |
| 82 | |
| 83 | fOpeningAngle=kf1.GetAngle(kf2); |
| 84 | } |
| 85 | |
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