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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
17//-------------------------------------------------------------------------
18// Helper -DATA class ESD V0 vertex class
19// contains effective errror parameterization
20// Effective parameterization of resolution in DCA and PA as function of radii and momenta
21// Mini-max coeficient fPMinFraction... fPMaxFraction...
22// as limits for Error parameterization using Covariance matrix
23// For detailes : see AliESDv0 class
24//
25// Origin: Marian Ivanov marian.ivanov@cern.ch
26//-------------------------------------------------------------------------
27
28
29#include "AliESDV0Params.h"
30
31
32ClassImp(AliESDV0Params)
33
34
35
36
37AliESDV0Params::AliESDV0Params() :
38 TObject(),
39 // These constants are used in the error parameterization using covariance matrix
40 // minimal sigma in AP and DCA
41 fPSigmaOffsetD0(0.03), // minimal sigma of error estimate
42 fPSigmaOffsetAP0(0.005),
43 //
44 // Effective parameterization of DCA resolution as function of pt and decay radii
45 //
46 fPSigmaMaxDE(0.5),
47 fPSigmaOffsetDE(0.06),
48 fPSigmaCoefDE(0.02),
49 fPSigmaRminDE(2.7),
50 //
51 //
52 // Effective parameterization of PA resolution as function of pt and decay radii
53 //
54 fPSigmaBase0APE(0.005),
55 fPSigmaMaxAPE(0.06),
56 fPSigmaR0APE(0.02),
57 fPSigmaR1APE(0.1),
58 fPSigmaP0APE(0.7*0.4),
59 fPSigmaP1APE(0.3*0.4),
60 //
61 //
62 // Minimax parameters
63 //
64 fPMinFractionAP0(0.5),
65 fPMaxFractionAP0(1.5),
66 fPMinAP0(0.003),
67 fPMinFractionD0(0.5),
68 fPMaxFractionD0(1.5),
69 fPMinD0(0.05),
70 fkMaxDist0(0.1),
71 fkMaxDist1(0.1),
72 fkMaxDist(1.),
73 fkMinPointAngle(0.85),
74 fkMinPointAngle2(0.99),
75 fkMinR(0.5),
76 fkMaxR(220.),
77 fkMinPABestConst(0.9999),
78 fkMaxRBestConst(10.),
79 fkCausality0Cut(0.19),
80 fkLikelihood01Cut(0.45),
81 fkLikelihood1Cut(0.5),
82 fkCombinedCut(0.55),
83 fkMinClFullTrk(5.0),
84 fkMinTgl0(1.05),
85
86 fkMinClForb0(4.5),
87 fkMinRTgl0(40.),
88 fkMinNormDistForbTgl0(3.0),
89 fkMinNormDistForb1(3.0),
90 fkMinNormDistForb2(2.0),
91 fkMinNormDistForb3(1.0),
92 fkMinNormDistForb4(4.0),
93 fkMinNormDistForb5(5.0),
94
95 fkMinRTPCdensity(40.),
96 fkMaxRTPCdensity0(110.),
97 fkMaxRTPCdensity10(120.),
98 fkMaxRTPCdensity20(130.),
99 fkMaxRTPCdensity30(140.),
100
101 fkMinTPCdensity(0.6),
102 fkMinTgl1(1.1),
103 fkMinTgl2(1.),
104 fkMinchi2before0(16.),
105 fkMinchi2before1(16.),
106 fkMinchi2after0(16.),
107 fkMinchi2after1(16.),
108 fkAddchi2SharedCl(18.),
109 fkAddchi2NegCl0(25.),
110 fkAddchi2NegCl1(30.),
111
112 fkSigp0Par0(0.0001),
113 fkSigp0Par1(0.001),
114 fkSigp0Par2(0.1),
115 fkSigpPar0(0.5),
116 fkSigpPar1(0.6),
117 fkSigpPar2(0.4),
118 fkMaxDcaLh0(0.5),
119
120 fkChi2KF(100.),
121 fkRobustChi2KF(100.),
122 fgStreamLevel(0)
123
124 //
125
126{
127 //
128 // Default constructor
129 // Consult AliESDv0 to see actual error parameterization
130 //
131}
132
133
134