Added methods for finding a given module in the DDL map (F. Prino)
[u/mrichter/AliRoot.git] / STEER / AliESDV0Params.cxx
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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
34
d6a49f20 35AliESDV0Params::AliESDV0Params() :
fe12e09c 36 TObject(),
37 // These constants are used in the error parameterization using covariance matrix
c1e38247 38 // minimal sigma in AP and DCA
fe12e09c 39 fPSigmaOffsetD0(0.03), // minimal sigma of error estimate
40 fPSigmaOffsetAP0(0.005),
c1e38247 41 //
42 // Effective parameterization of DCA resolution as function of pt and decay radii
43 //
fe12e09c 44 fPSigmaMaxDE(0.5),
45 fPSigmaOffsetDE(0.06),
46 fPSigmaCoefDE(0.02),
47 fPSigmaRminDE(2.7),
c1e38247 48 //
49 //
50 // Effective parameterization of PA resolution as function of pt and decay radii
51 //
fe12e09c 52 fPSigmaBase0APE(0.005),
53 fPSigmaMaxAPE(0.06),
54 fPSigmaR0APE(0.02),
55 fPSigmaR1APE(0.1),
56 fPSigmaP0APE(0.7*0.4),
57 fPSigmaP1APE(0.3*0.4),
c1e38247 58 //
59 //
60 // Minimax parameters
61 //
fe12e09c 62 fPMinFractionAP0(0.5),
63 fPMaxFractionAP0(1.5),
64 fPMinAP0(0.003),
65 fPMinFractionD0(0.5),
66 fPMaxFractionD0(1.5),
67 fPMinD0(0.05)
68 //
69
70{
71 //
72 // Default constructor
d6a49f20 73 // Consult AliESDv0 to see actual error parameterization
c1e38247 74 //
75}
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