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e508972c | 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 | /* $Id$ */ | |
17 | ||
18 | //------------------------------------------------------------------------- | |
19 | // AliESDUtils - This is a namespace that temporary provides general | |
20 | // purpose ESD utilities to avoid unnecessary dependencies | |
21 | // between PWG libraries. To be removed/replaced by AODB | |
22 | // framework. | |
23 | // | |
24 | //------------------------------------------------------------------------- | |
25 | // Author: Andrei Gheata | |
26 | ||
27 | #include "AliESDUtils.h" | |
28 | ||
29 | #include "AliESDEvent.h" | |
30 | #include "AliESDVZERO.h" | |
31 | ||
32 | //______________________________________________________________________________ | |
edb69485 | 33 | Float_t AliESDUtils::GetCorrV0(const AliESDEvent* esd, Float_t &v0CorrResc, Float_t *v0multChCorr) |
e508972c | 34 | { |
35 | // Correct V0 non-linearity, prepare a version rescaled to SPD2 corr. | |
36 | // Please describe better parameters... | |
37 | Double_t *par0; | |
38 | Double_t *par1; | |
39 | Double_t *par2; | |
40 | ||
41 | Double_t par0_137161[64] = { 6.71e-02 , 6.86e-02 , 7.06e-02 , 6.32e-02 , | |
42 | 5.91e-02 , 6.07e-02 , 5.78e-02 , 5.73e-02 , 5.91e-02 , 6.22e-02 , | |
43 | 5.90e-02 , 6.11e-02 , 5.55e-02 , 5.29e-02 , 5.19e-02 , 5.56e-02 , | |
44 | 6.25e-02 , 7.03e-02 , 5.64e-02 , 5.81e-02 , 4.57e-02 , 5.30e-02 , | |
45 | 5.13e-02 , 6.43e-02 , 6.27e-02 , 6.48e-02 , 6.07e-02 , 1.01e-01 , | |
46 | 6.68e-02 , 7.16e-02 , 6.36e-02 , 5.95e-02 , 2.52e-02 , 2.82e-02 , | |
47 | 2.56e-02 , 2.86e-02 , 2.82e-02 , 2.10e-02 , 2.13e-02 , 2.32e-02 , | |
48 | 2.75e-02 , 4.34e-02 , 3.78e-02 , 4.52e-02 , 4.11e-02 , 3.89e-02 , | |
49 | 4.10e-02 , 3.73e-02 , 4.51e-02 , 5.07e-02 , 5.42e-02 , 4.74e-02 , | |
50 | 4.33e-02 , 4.44e-02 , 4.64e-02 , 3.01e-02 , 6.38e-02 , 5.26e-02 , | |
51 | 4.99e-02 , 5.26e-02 , 5.47e-02 , 3.84e-02 , 5.00e-02 , 5.20e-02 }; | |
52 | Double_t par1_137161[64] = { -6.68e-05 , -7.78e-05 , -6.88e-05 , -5.92e-05 , | |
53 | -2.43e-05 , -3.54e-05 , -2.91e-05 , -1.99e-05 , -1.40e-05 , -4.01e-05 , | |
54 | -2.29e-05 , -3.68e-05 , -2.53e-05 , -2.44e-06 , -9.22e-06 , -1.51e-05 , | |
55 | -2.80e-05 , -2.34e-05 , -1.72e-05 , -1.81e-05 , -1.29e-05 , -2.65e-05 , | |
56 | -1.61e-05 , -2.86e-05 , -1.74e-05 , -4.23e-05 , -3.41e-05 , -1.05e-04 , | |
57 | -2.76e-05 , -4.71e-05 , -3.06e-05 , -2.32e-05 , -1.55e-06 , 2.15e-05 , | |
58 | 1.40e-05 , 2.16e-05 , 1.21e-05 , 3.05e-06 , 1.67e-05 , -3.84e-06 , | |
59 | 3.09e-06 , 1.50e-05 , 3.47e-06 , 4.87e-06 , -3.71e-07 , -1.75e-06 , | |
60 | -1.80e-06 , 9.99e-06 , -6.46e-06 , -4.91e-06 , 1.33e-05 , -2.52e-07 , | |
61 | -3.85e-06 , 4.94e-06 , -2.48e-07 , -1.20e-05 , 2.07e-06 , 6.12e-06 , | |
62 | -1.18e-06 , 4.54e-06 , -1.54e-05 , -1.25e-05 , 1.46e-06 , -6.67e-06 }; | |
63 | Double_t par2_137161[64] = { 1.29e-08 , 1.51e-08 , 1.43e-08 , 1.11e-08 , | |
64 | 5.04e-09 , 6.99e-09 , 5.58e-09 , 4.15e-09 , 4.00e-09 , 8.22e-09 , | |
65 | 4.97e-09 , 7.66e-09 , 4.91e-09 , 1.10e-09 , 2.64e-09 , 3.64e-09 , | |
66 | 5.76e-09 , 5.46e-09 , 3.38e-09 , 3.47e-09 , 2.43e-09 , 4.13e-09 , | |
67 | 2.80e-09 , 5.80e-09 , 3.86e-09 , 7.46e-09 , 5.98e-09 , 2.58e-08 , | |
68 | 5.50e-09 , 8.72e-09 , 5.23e-09 , 4.37e-09 , 2.33e-09 , -6.01e-10 , | |
69 | 3.99e-11 , -2.02e-10 , 7.67e-10 , 2.03e-09 , 1.17e-10 , 2.56e-09 , | |
70 | 1.16e-09 , -4.75e-10 , 1.28e-09 , 1.23e-09 , 1.62e-09 , 1.61e-09 , | |
71 | 1.93e-09 , 2.97e-10 , 2.21e-09 , 2.16e-09 , 5.22e-10 , 1.03e-09 , | |
72 | 1.56e-09 , 5.00e-10 , 1.01e-09 , 2.93e-09 , 1.05e-09 , 9.96e-11 , | |
73 | 1.21e-09 , 7.45e-10 , 3.07e-09 , 2.31e-09 , 6.70e-10 , 1.89e-09 }; | |
74 | ||
75 | Double_t par0_137366[64] = { 7.12e-02 , 7.34e-02 , 7.39e-02 , 6.54e-02 , 6.11e-02 , 6.31e-02 , 6.15e-02 , | |
76 | 6.00e-02 , 6.10e-02 , 6.49e-02 , 6.17e-02 , 6.33e-02 , 6.00e-02 , 5.48e-02 , | |
77 | 5.44e-02 , 5.81e-02 , 6.49e-02 , 7.07e-02 , 5.91e-02 , 6.18e-02 , 4.82e-02 , | |
78 | 5.67e-02 , 5.36e-02 , 6.60e-02 , 6.37e-02 , 6.78e-02 , 6.31e-02 , 1.04e-01 , | |
79 | 6.91e-02 , 7.32e-02 , 6.61e-02 , 6.16e-02 , 2.64e-02 , 2.81e-02 , 2.64e-02 , | |
80 | 2.85e-02 , 2.87e-02 , 2.18e-02 , 2.19e-02 , 2.43e-02 , 2.81e-02 , 4.37e-02 , | |
81 | 3.90e-02 , 4.66e-02 , 4.24e-02 , 4.09e-02 , 4.21e-02 , 3.88e-02 , 4.83e-02 , | |
82 | 5.23e-02 , 5.44e-02 , 4.85e-02 , 4.42e-02 , 4.58e-02 , 4.74e-02 , 3.14e-02 , | |
83 | 6.31e-02 , 5.30e-02 , 5.01e-02 , 5.33e-02 , 5.70e-02 , 3.95e-02 , 4.98e-02 , 5.31e-02 }; | |
84 | Double_t par1_137366[64] = { -6.99e-05 , -6.99e-05 , -6.94e-05 , -6.55e-05 , -3.55e-05 , -4.50e-05 , | |
85 | -3.10e-05 , -2.81e-05 , -2.29e-05 , -3.89e-05 , -2.53e-05 , -4.25e-05 , | |
86 | -1.87e-05 , -2.01e-05 , -1.53e-05 , -2.14e-05 , -2.86e-05 , -4.70e-05 , | |
87 | -2.23e-05 , -3.30e-05 ,-9.74e-06 , -2.62e-05 , -1.76e-05 , -2.38e-05 , | |
88 | -2.40e-05 , -3.43e-05 , -2.75e-05 , -6.86e-05 ,-2.35e-05 , -4.45e-05 , | |
89 | -2.51e-05 , -2.20e-05 , -1.25e-16 , -2.04e-17 , -2.06e-17 , -3.74e-19 , | |
90 | -1.18e-18 , -2.02e-15 , -3.78e-06 , -1.26e-06 , -2.71e-06 , -6.23e-17 , | |
91 | -7.39e-08 , -1.76e-16 , -8.98e-06 , -4.10e-18 , -1.34e-05 , -1.06e-16 , | |
92 | -3.34e-06 , -1.04e-05 , -5.28e-06 , -7.34e-06 , -1.05e-05 , -7.68e-06 , | |
93 | -1.78e-05 , -1.19e-05 , -1.78e-05 , -1.34e-06 , -9.23e-06 , -3.34e-06 , | |
94 | -8.02e-06 , -1.39e-05 , -1.38e-05 , -1.40e-05 }; | |
95 | Double_t par2_137366[64] = { 1.41e-08 , 1.47e-08 , 1.48e-08 , 1.24e-08 , 6.82e-09 , 8.73e-09 , 6.26e-09 , | |
96 | 5.53e-09 , 5.40e-09 , 7.93e-09 , 5.49e-09 , 8.77e-09 , 4.21e-09 , 3.93e-09 , | |
97 | 3.60e-09 , 4.67e-09 , 5.59e-09 , 8.81e-09 , 3.89e-09 , 6.19e-09 , 1.97e-09 , | |
98 | 4.38e-09 , 3.26e-09 , 5.00e-09 , 4.58e-09 , 6.39e-09 , 5.03e-09 , 1.30e-08 , | |
99 | 4.95e-09 , 8.26e-09 , 4.57e-09 , 4.10e-09 , 2.35e-09 , 2.30e-09 , 2.15e-09 , | |
100 | 2.27e-09 , 2.17e-09 , 2.27e-09 , 2.97e-09 , 2.25e-09 , 1.69e-09 , 1.44e-09 , | |
101 | 1.66e-09 , 1.75e-09 , 2.88e-09 , 1.82e-09 , 3.64e-09 , 1.80e-09 , 1.71e-09 , | |
102 | 2.66e-09 , 3.01e-09 , 1.95e-09 , 2.64e-09 , 2.42e-09 , 3.68e-09 , 2.66e-09 , | |
103 | 3.92e-09 , 1.18e-09 , 2.26e-09 , 1.57e-09 , 2.02e-09 , 2.71e-09 , 2.99e-09 , 3.04e-09 }; | |
104 | ||
105 | ||
106 | if (esd->GetRunNumber() <= 137165) { | |
107 | par0=par0_137161; | |
108 | par1=par1_137161; | |
109 | par2=par2_137161; | |
110 | } else { | |
111 | par0=par0_137366; | |
112 | par1=par1_137366; | |
113 | par2=par2_137366; | |
114 | } | |
115 | // | |
116 | Float_t multCorr = 0; | |
117 | Float_t multCorr2 = 0; | |
118 | Float_t multChCorr[64]; | |
119 | AliESDVZERO* esdV0 = esd->GetVZEROData(); | |
120 | for(Int_t i = 0; i < 64; ++i) { | |
121 | Double_t b = (esdV0->GetMultiplicity(i)*par1[i]-par0[i]); | |
122 | Double_t s = (b*b-4.*par2[i]*esdV0->GetMultiplicity(i)*esdV0->GetMultiplicity(i)); | |
123 | Double_t n = (s<0) ? -b : (-b + TMath::Sqrt(s)); | |
124 | multChCorr[i] = 2.*esdV0->GetMultiplicity(i)/n*par0[i]; | |
125 | multCorr += multChCorr[i]; | |
126 | multCorr2 += (multChCorr[i]/par0[i]/64.); | |
127 | } | |
128 | v0CorrResc = multCorr2; | |
edb69485 | 129 | if (v0multChCorr) |
130 | for(Int_t i = 0; i < 64; ++i) v0multChCorr[i] = multChCorr[i]; | |
131 | ||
e508972c | 132 | return multCorr; |
133 | } | |
134 | ||
135 | //______________________________________________________________________________ | |
136 | Float_t AliESDUtils::GetCorrSPD2(Float_t spd2raw,Float_t zv) | |
137 | { | |
138 | // renormalize N spd2 clusters at given Zv to acceptance at Zv=0 | |
139 | const Double_t pars[] = {8.10030e-01,-2.80364e-03,-7.19504e-04}; | |
140 | zv -= pars[0]; | |
141 | Float_t corr = 1 + zv*(pars[1] + zv*pars[2]); | |
142 | return corr>0 ? spd2raw/corr : -1; | |
143 | } |