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482070f2 | 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 | //----------------------------------------------------------------- | |
17 | // Implementation of the ESD HLT track class | |
18 | // ESD = Event Summary Data | |
19 | // HLT = High Level Trigger | |
20 | // This is the class to deal with during the phisical analysis of data | |
21 | //----------------------------------------------------------------- | |
22 | ||
23 | #include "TMath.h" | |
24 | #include "AliESDHLTtrack.h" | |
25 | ||
26 | ClassImp(AliESDHLTtrack) | |
27 | ||
28 | AliESDHLTtrack::AliESDHLTtrack() : TObject() | |
29 | { | |
30 | fNHits = 0; | |
31 | fMCid = 0; | |
32 | fWeight = 0; | |
33 | fFromMainVertex = kFALSE; | |
34 | fRowRange[0] = fRowRange[1] = 0; | |
35 | fSector = 0; | |
36 | fFirstPoint[0] = fFirstPoint[1] = fFirstPoint[2] = 0; | |
37 | fLastPoint[0] = fLastPoint[1] = fLastPoint[2] = 0; | |
38 | fQ = 0; | |
39 | fTanl = 0; | |
40 | fPsi = 0; | |
41 | fPt = 0; | |
42 | fPterr = 0; | |
43 | fPsierr = 0; | |
44 | fTanlerr = 0; | |
45 | fBinX = 0; | |
46 | fBinY = 0; | |
47 | fSizeX = 0; | |
48 | fSizeY = 0; | |
49 | fPID =0; | |
50 | } | |
51 | ||
52 | Double_t AliESDHLTtrack::GetP() const | |
53 | { | |
54 | // Returns total momentum. | |
55 | return TMath::Abs(GetPt())*sqrt(1. + GetTgl()*GetTgl()); | |
56 | } | |
57 | ||
58 | Double_t AliESDHLTtrack::GetPseudoRapidity() const | |
59 | { | |
60 | return 0.5 * TMath::Log((GetP() + GetPz()) / (GetP() - GetPz())); | |
61 | } |