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c1e38247 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//-------------------------------------------------------------------------
d6a49f20 18// Helper -DATA class ESD V0 vertex class
c1e38247 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
d6a49f20 23// For detailes : see AliESDv0 class
c1e38247 24//
25// Origin: Marian Ivanov marian.ivanov@cern.ch
26//-------------------------------------------------------------------------
27
28
d6a49f20 29#include "AliESDV0Params.h"
c1e38247 30
31
d6a49f20 32ClassImp(AliESDV0Params)
c1e38247 33
61673d36 34
db4c5c7d 35
c1e38247 36
d6a49f20 37AliESDV0Params::AliESDV0Params() :
fe12e09c 38 TObject(),
39 // These constants are used in the error parameterization using covariance matrix
c1e38247 40 // minimal sigma in AP and DCA
fe12e09c 41 fPSigmaOffsetD0(0.03), // minimal sigma of error estimate
42 fPSigmaOffsetAP0(0.005),
c1e38247 43 //
44 // Effective parameterization of DCA resolution as function of pt and decay radii
45 //
fe12e09c 46 fPSigmaMaxDE(0.5),
47 fPSigmaOffsetDE(0.06),
48 fPSigmaCoefDE(0.02),
49 fPSigmaRminDE(2.7),
c1e38247 50 //
51 //
52 // Effective parameterization of PA resolution as function of pt and decay radii
53 //
fe12e09c 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),
c1e38247 60 //
61 //
62 // Minimax parameters
63 //
fe12e09c 64 fPMinFractionAP0(0.5),
65 fPMaxFractionAP0(1.5),
66 fPMinAP0(0.003),
67 fPMinFractionD0(0.5),
68 fPMaxFractionD0(1.5),
61673d36 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
fe12e09c 124 //
125
126{
127 //
128 // Default constructor
d6a49f20 129 // Consult AliESDv0 to see actual error parameterization
c1e38247 130 //
131}
132
133
134