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46d29e70 | 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 | ||
88cb7938 | 16 | /* $Id$ */ |
88cb7938 | 17 | |
18 | /////////////////////////////////////////////////////////////////////////////// | |
19 | // // | |
20 | // TRD cluster // | |
21 | // // | |
22 | /////////////////////////////////////////////////////////////////////////////// | |
46d29e70 | 23 | |
762571f0 | 24 | #include <TMath.h> |
5843e420 | 25 | |
203967fc | 26 | #include "AliLog.h" |
762571f0 | 27 | |
46d29e70 | 28 | #include "AliTRDcluster.h" |
834ac2c9 | 29 | #include "AliTRDgeometry.h" |
30 | #include "AliTRDCommonParam.h" | |
a5b99acd | 31 | #include "AliTRDtrackletWord.h" |
46d29e70 | 32 | |
46d29e70 | 33 | ClassImp(AliTRDcluster) |
bdb68f8c | 34 | |
b72f4eaf | 35 | const Int_t AliTRDcluster::fgkNlut = 128; |
36 | Double_t *AliTRDcluster::fgLUT = 0x0; | |
37 | ||
6d50f529 | 38 | //___________________________________________________________________________ |
39 | AliTRDcluster::AliTRDcluster() | |
40 | :AliCluster() | |
af26ce80 | 41 | ,fPadCol(0) |
42 | ,fPadRow(0) | |
43 | ,fPadTime(0) | |
f5375dcb | 44 | ,fLocalTimeBin(0) |
45 | ,fNPads(0) | |
46 | ,fClusterMasking(0) | |
47 | ,fDetector(0) | |
48 | ,fQ(0) | |
49 | ,fCenter(0) | |
6d50f529 | 50 | { |
bdb68f8c | 51 | // |
a6dd11e9 | 52 | // Default constructor |
bdb68f8c | 53 | // |
6d50f529 | 54 | |
55 | for (Int_t i = 0; i < 7; i++) { | |
56 | fSignals[i] = 0; | |
57 | } | |
a790abc6 | 58 | SetBit(kLUT); |
bdb68f8c | 59 | } |
6d50f529 | 60 | |
b72f4eaf | 61 | //___________________________________________________________________________ |
762571f0 | 62 | AliTRDcluster::AliTRDcluster(Int_t det, UChar_t col, UChar_t row, UChar_t time |
63 | , const Short_t *sig, UShort_t vid) | |
b72f4eaf | 64 | :AliCluster() |
65 | ,fPadCol(col) | |
66 | ,fPadRow(row) | |
67 | ,fPadTime(time) | |
68 | ,fLocalTimeBin(0) | |
69 | ,fNPads(0) | |
70 | ,fClusterMasking(0) | |
71 | ,fDetector(det) | |
72 | ,fQ(0.) | |
73 | ,fCenter(0.) | |
74 | { | |
75 | // | |
76 | // Constructor for self constructing cluster. In this approach the information is inserted gradualy into the | |
77 | // cluster and all dependencies are (re)calculated inside the cluster itself. | |
78 | // | |
79 | // A.Bercuci <A.Bercuci@gsi.de> | |
80 | ||
81 | memcpy(&fSignals, sig, 7*sizeof(Short_t)); | |
82 | fQ = fSignals[2]+fSignals[3]+fSignals[4]; | |
83 | SetVolumeId(vid); | |
a790abc6 | 84 | SetBit(kLUT); |
b72f4eaf | 85 | } |
86 | ||
34eaaa7e | 87 | //___________________________________________________________________________ |
88 | AliTRDcluster::AliTRDcluster(Int_t det, Float_t q | |
04e58504 | 89 | , const Float_t *pos, const Float_t *sig |
90 | , const Int_t *tracks, Char_t npads, Short_t * const signals | |
af26ce80 | 91 | , UChar_t col, UChar_t row, UChar_t time |
92 | , Char_t timebin, Float_t center, UShort_t volid) | |
93 | :AliCluster(volid,pos[0],pos[1],pos[2],sig[0],sig[1],0.0,0x0) | |
af26ce80 | 94 | ,fPadCol(col) |
95 | ,fPadRow(row) | |
96 | ,fPadTime(time) | |
f5375dcb | 97 | ,fLocalTimeBin(timebin) |
98 | ,fNPads(npads) | |
99 | ,fClusterMasking(0) | |
100 | ,fDetector(det) | |
101 | ,fQ(q) | |
102 | ,fCenter(center) | |
34eaaa7e | 103 | { |
104 | // | |
105 | // Constructor | |
106 | // | |
107 | ||
108 | for (Int_t i = 0; i < 7; i++) { | |
109 | fSignals[i] = signals[i]; | |
110 | } | |
111 | ||
112 | if (tracks) { | |
113 | AddTrackIndex(tracks); | |
114 | } | |
a790abc6 | 115 | SetBit(kLUT); |
34eaaa7e | 116 | } |
117 | ||
a5b99acd | 118 | //_____________________________________________________________________________ |
119 | AliTRDcluster::AliTRDcluster(const AliTRDtrackletWord *const tracklet, Int_t det, UShort_t volid) | |
120 | :AliCluster(volid,tracklet->GetX(),tracklet->GetY(),tracklet->GetZ(),0,0,0) | |
121 | ,fPadCol(0) | |
122 | ,fPadRow(0) | |
123 | ,fPadTime(0) | |
124 | ,fLocalTimeBin(0) | |
125 | ,fNPads(0) | |
126 | ,fClusterMasking(0) | |
127 | ,fDetector(det) | |
128 | ,fQ(0.) | |
129 | ,fCenter(0.) | |
130 | { | |
131 | // | |
132 | // Constructor from online tracklet | |
133 | // | |
6735e9c8 | 134 | |
135 | for (Int_t i = 0; i < 7; i++) { | |
136 | fSignals[i] = 0; | |
137 | } | |
138 | ||
a5b99acd | 139 | } |
140 | ||
bbf92647 | 141 | //_____________________________________________________________________________ |
6d50f529 | 142 | AliTRDcluster::AliTRDcluster(const AliTRDcluster &c) |
34eaaa7e | 143 | :AliCluster(c) |
af26ce80 | 144 | ,fPadCol(c.fPadCol) |
145 | ,fPadRow(c.fPadRow) | |
146 | ,fPadTime(c.fPadTime) | |
f5375dcb | 147 | ,fLocalTimeBin(c.fLocalTimeBin) |
148 | ,fNPads(c.fNPads) | |
149 | ,fClusterMasking(c.fClusterMasking) | |
150 | ,fDetector(c.fDetector) | |
151 | ,fQ(c.fQ) | |
152 | ,fCenter(c.fCenter) | |
bbf92647 | 153 | { |
154 | // | |
155 | // Copy constructor | |
156 | // | |
157 | ||
75fb37cc | 158 | SetLabel(c.GetLabel(0),0); |
159 | SetLabel(c.GetLabel(1),1); | |
160 | SetLabel(c.GetLabel(2),2); | |
6d50f529 | 161 | |
75fb37cc | 162 | SetY(c.GetY()); |
163 | SetZ(c.GetZ()); | |
1fd9389f | 164 | AliCluster::SetSigmaY2(c.GetSigmaY2()); |
75fb37cc | 165 | SetSigmaZ2(c.GetSigmaZ2()); |
6d50f529 | 166 | |
167 | for (Int_t i = 0; i < 7; i++) { | |
168 | fSignals[i] = c.fSignals[i]; | |
169 | } | |
170 | ||
a2b90f83 | 171 | } |
172 | ||
a2b90f83 | 173 | //_____________________________________________________________________________ |
762571f0 | 174 | AliTRDcluster &AliTRDcluster::operator=(const AliTRDcluster &c) |
175 | { | |
176 | // | |
177 | // Assignment operator | |
f2e15e5b | 178 | // |
762571f0 | 179 | |
f2e15e5b | 180 | if (&c == this) { |
181 | return *this; | |
182 | } | |
183 | ||
184 | // Call the assignment operator of the base class | |
185 | AliCluster::operator=(c); | |
186 | ||
187 | fPadCol = c.fPadCol; | |
188 | fPadRow = c.fPadRow; | |
189 | fPadTime = c.fPadTime; | |
190 | fLocalTimeBin = c.fLocalTimeBin; | |
191 | fNPads = c.fNPads; | |
192 | fClusterMasking = c.fClusterMasking; | |
193 | fDetector = c.fDetector; | |
194 | fQ = c.fQ; | |
195 | fCenter = c.fCenter; | |
196 | ||
197 | SetLabel(c.GetLabel(0),0); | |
198 | SetLabel(c.GetLabel(1),1); | |
199 | SetLabel(c.GetLabel(2),2); | |
200 | ||
201 | SetY(c.GetY()); | |
202 | SetZ(c.GetZ()); | |
203 | SetSigmaZ2(c.GetSigmaZ2()); | |
204 | ||
205 | for (Int_t i = 0; i < 7; i++) { | |
206 | fSignals[i] = c.fSignals[i]; | |
762571f0 | 207 | } |
208 | ||
209 | return *this; | |
210 | ||
f2e15e5b | 211 | } |
762571f0 | 212 | |
213 | //_____________________________________________________________________________ | |
214 | void AliTRDcluster::AddTrackIndex(const Int_t * const track) | |
a2b90f83 | 215 | { |
216 | // | |
217 | // Adds track index. Currently assumed that track is an array of | |
218 | // size 9, and up to 3 track indexes are stored in fTracks[3]. | |
219 | // Indexes are sorted according to: | |
220 | // 1) index of max number of appearances is stored first | |
221 | // 2) if two or more indexes appear equal number of times, the lowest | |
222 | // ones are stored first; | |
223 | // | |
bbf92647 | 224 | |
88cb7938 | 225 | const Int_t kSize = 9; |
6d50f529 | 226 | Int_t entries[kSize][2]; |
a2b90f83 | 227 | |
6d50f529 | 228 | Int_t i = 0; |
229 | Int_t j = 0; | |
230 | Int_t k = 0; | |
231 | Int_t index; | |
88cb7938 | 232 | Bool_t indexAdded; |
a2b90f83 | 233 | |
6d50f529 | 234 | for (i = 0; i < kSize; i++) { |
235 | entries[i][0] = -1; | |
236 | entries[i][1] = 0; | |
5443e65e | 237 | } |
a2b90f83 | 238 | |
6d50f529 | 239 | for (k = 0; k < kSize; k++) { |
240 | ||
241 | index = track[k]; | |
242 | indexAdded = kFALSE; | |
243 | ||
244 | j = 0; | |
a2b90f83 | 245 | if (index >= 0) { |
6d50f529 | 246 | while ((!indexAdded) && (j < kSize)) { |
247 | if ((entries[j][0] == index) || | |
248 | (entries[j][1] == 0)) { | |
249 | entries[j][0] = index; | |
250 | entries[j][1] = entries[j][1] + 1; | |
251 | indexAdded = kTRUE; | |
a2b90f83 | 252 | } |
253 | j++; | |
254 | } | |
255 | } | |
6d50f529 | 256 | |
257 | } | |
258 | ||
259 | // Sort by number of appearances and index value | |
260 | Int_t swap = 1; | |
261 | Int_t tmp0; | |
262 | Int_t tmp1; | |
263 | while (swap > 0) { | |
264 | swap = 0; | |
265 | for (i = 0; i < (kSize - 1); i++) { | |
266 | if ((entries[i][0] >= 0) && | |
267 | (entries[i+1][0] >= 0)) { | |
a2b90f83 | 268 | if ((entries[i][1] < entries[i+1][1]) || |
269 | ((entries[i][1] == entries[i+1][1]) && | |
6d50f529 | 270 | (entries[i][0] > entries[i+1][0]))) { |
271 | tmp0 = entries[i][0]; | |
272 | tmp1 = entries[i][1]; | |
273 | entries[i][0] = entries[i+1][0]; | |
274 | entries[i][1] = entries[i+1][1]; | |
275 | entries[i+1][0] = tmp0; | |
276 | entries[i+1][1] = tmp1; | |
277 | swap++; | |
a2b90f83 | 278 | } |
279 | } | |
280 | } | |
5443e65e | 281 | } |
a2b90f83 | 282 | |
6d50f529 | 283 | // Set track indexes |
284 | for (i = 0; i < 3; i++) { | |
285 | SetLabel(entries[i][0],i); | |
286 | } | |
a2b90f83 | 287 | |
288 | return; | |
46d29e70 | 289 | |
5443e65e | 290 | } |
46d29e70 | 291 | |
203967fc | 292 | //_____________________________________________________________________________ |
293 | void AliTRDcluster::Clear(Option_t *) | |
294 | { | |
295 | // | |
296 | // Reset all member to the default value | |
297 | // | |
298 | fPadCol=0; | |
299 | fPadRow=0; | |
300 | fPadTime=0; | |
301 | fLocalTimeBin=0; | |
302 | fNPads=0; | |
303 | fClusterMasking=0; | |
304 | fDetector=0; | |
305 | for (Int_t i=0; i < 7; i++) fSignals[i]=0; | |
306 | fQ = 0; | |
307 | fCenter = 0; | |
308 | for (Int_t i = 0; i < 3; i++) SetLabel(0,i); | |
1fd9389f | 309 | SetX(0.); |
310 | SetY(0.); | |
311 | SetZ(0.); | |
312 | AliCluster::SetSigmaY2(0.); | |
313 | SetSigmaZ2(0.); | |
203967fc | 314 | SetVolumeId(0); |
315 | } | |
316 | ||
6d50f529 | 317 | //_____________________________________________________________________________ |
bdb68f8c | 318 | Float_t AliTRDcluster::GetSumS() const |
319 | { | |
320 | // | |
6d50f529 | 321 | // Returns the total charge from a not unfolded cluster |
bdb68f8c | 322 | // |
6d50f529 | 323 | |
324 | Float_t sum = 0.0; | |
325 | for (Int_t i = 0; i < 7; i++) { | |
326 | sum += fSignals[i]; | |
bdb68f8c | 327 | } |
6d50f529 | 328 | |
329 | return sum; | |
bdb68f8c | 330 | |
331 | } | |
f5375dcb | 332 | |
538f6383 | 333 | //___________________________________________________________________________ |
b72f4eaf | 334 | Double_t AliTRDcluster::GetSX(Int_t tb, Double_t z) |
335 | { | |
762571f0 | 336 | // |
337 | // Returns the error parameterization in the radial direction for TRD clusters as function of | |
338 | // the calibrated time bin (tb) and optionally distance to anode wire (z). By default (no z information) | |
339 | // the mean value over all cluster to wire distance is chosen. | |
340 | // | |
341 | // There are several contributions which are entering in the definition of the radial errors of the clusters. | |
342 | // Although an analytic defition should be possible for the moment this is not yet available but instead a | |
343 | // numerical parameterization is provided (see AliTRDclusterResolution::ProcessSigma() for the calibration | |
344 | // method). The result is displayed in the figure below as a 2D plot and also as the projection on the drift axis. | |
345 | // | |
346 | //Begin_Html | |
347 | //<img src="TRD/clusterXerrorDiff2D.gif"> | |
348 | //End_Html | |
349 | // | |
350 | // Here is a list of uncertainty components: | |
351 | // - Time Response Function (TRF) - the major contribution. since TRF is also not symmetric (even if tail is | |
352 | // cancelled) it also creates a systematic shift dependent on the charge distribution before and after the cluster. | |
353 | // - longitudinal diffusion - increase the width of TRF and scales with square root of drift length | |
354 | // - variation in the drift velocity within the drift cell | |
355 | // | |
356 | // Author | |
357 | // A.Bercuci <A.Bercuci@gsi.de> | |
358 | // | |
1fd9389f | 359 | |
b72f4eaf | 360 | if(tb<1 || tb>=24) return 10.; // return huge [10cm] |
d03bfe2b | 361 | static const Double_t sx[24][10]={ |
b72f4eaf | 362 | {0.000e+00, 9.352e-01, 0.000e+00, 0.000e+00, 0.000e+00, 0.000e+00, 0.000e+00, 0.000e+00, 0.000e+00, 2.309e+00}, |
363 | {8.387e-02, 8.718e-02, 8.816e-02, 9.444e-02, 9.993e-02, 1.083e-01, 1.161e-01, 1.280e-01, 1.417e-01, 1.406e-01}, | |
364 | {1.097e-01, 1.105e-01, 1.127e-01, 1.151e-01, 1.186e-01, 1.223e-01, 1.272e-01, 1.323e-01, 1.389e-01, 1.490e-01}, | |
365 | {1.407e-01, 1.404e-01, 1.414e-01, 1.430e-01, 1.429e-01, 1.449e-01, 1.476e-01, 1.494e-01, 1.515e-01, 1.589e-01}, | |
366 | {1.681e-01, 1.679e-01, 1.666e-01, 1.657e-01, 1.656e-01, 1.649e-01, 1.652e-01, 1.662e-01, 1.671e-01, 1.694e-01}, | |
367 | {1.745e-01, 1.737e-01, 1.707e-01, 1.690e-01, 1.643e-01, 1.610e-01, 1.612e-01, 1.628e-01, 1.638e-01, 1.659e-01}, | |
368 | {1.583e-01, 1.558e-01, 1.535e-01, 1.488e-01, 1.445e-01, 1.419e-01, 1.428e-01, 1.451e-01, 1.462e-01, 1.494e-01}, | |
369 | {1.414e-01, 1.391e-01, 1.368e-01, 1.300e-01, 1.256e-01, 1.259e-01, 1.285e-01, 1.326e-01, 1.358e-01, 1.406e-01}, | |
370 | {1.307e-01, 1.289e-01, 1.261e-01, 1.216e-01, 1.193e-01, 1.165e-01, 1.201e-01, 1.241e-01, 1.274e-01, 1.344e-01}, | |
371 | {1.251e-01, 1.227e-01, 1.208e-01, 1.155e-01, 1.110e-01, 1.116e-01, 1.133e-01, 1.187e-01, 1.229e-01, 1.308e-01}, | |
372 | {1.234e-01, 1.209e-01, 1.175e-01, 1.127e-01, 1.094e-01, 1.093e-01, 1.109e-01, 1.155e-01, 1.210e-01, 1.275e-01}, | |
373 | {1.215e-01, 1.187e-01, 1.156e-01, 1.108e-01, 1.070e-01, 1.065e-01, 1.090e-01, 1.134e-01, 1.196e-01, 1.251e-01}, | |
374 | {1.202e-01, 1.180e-01, 1.151e-01, 1.108e-01, 1.070e-01, 1.058e-01, 1.089e-01, 1.127e-01, 1.183e-01, 1.256e-01}, | |
375 | {1.207e-01, 1.176e-01, 1.142e-01, 1.109e-01, 1.072e-01, 1.069e-01, 1.088e-01, 1.122e-01, 1.182e-01, 1.252e-01}, | |
376 | {1.213e-01, 1.182e-01, 1.156e-01, 1.102e-01, 1.076e-01, 1.063e-01, 1.091e-01, 1.132e-01, 1.181e-01, 1.243e-01}, | |
377 | {1.205e-01, 1.180e-01, 1.150e-01, 1.104e-01, 1.072e-01, 1.063e-01, 1.083e-01, 1.132e-01, 1.183e-01, 1.243e-01}, | |
378 | {1.212e-01, 1.195e-01, 1.135e-01, 1.107e-01, 1.070e-01, 1.065e-01, 1.097e-01, 1.126e-01, 1.185e-01, 1.238e-01}, | |
379 | {1.201e-01, 1.184e-01, 1.155e-01, 1.111e-01, 1.088e-01, 1.075e-01, 1.089e-01, 1.131e-01, 1.189e-01, 1.237e-01}, | |
380 | {1.197e-01, 1.186e-01, 1.147e-01, 1.113e-01, 1.085e-01, 1.077e-01, 1.105e-01, 1.137e-01, 1.188e-01, 1.245e-01}, | |
381 | {1.213e-01, 1.194e-01, 1.154e-01, 1.114e-01, 1.091e-01, 1.082e-01, 1.098e-01, 1.140e-01, 1.194e-01, 1.247e-01}, | |
382 | {1.210e-01, 1.189e-01, 1.155e-01, 1.119e-01, 1.088e-01, 1.080e-01, 1.105e-01, 1.141e-01, 1.195e-01, 1.244e-01}, | |
383 | {1.196e-01, 1.189e-01, 1.145e-01, 1.105e-01, 1.095e-01, 1.083e-01, 1.087e-01, 1.121e-01, 1.173e-01, 1.208e-01}, | |
384 | {1.123e-01, 1.129e-01, 1.108e-01, 1.110e-01, 1.080e-01, 1.065e-01, 1.056e-01, 1.066e-01, 1.071e-01, 1.095e-01}, | |
385 | {1.136e-01, 1.135e-01, 1.130e-01, 1.122e-01, 1.113e-01, 1.071e-01, 1.041e-01, 1.025e-01, 1.014e-01, 9.973e-02} | |
386 | }; | |
387 | if(z>=0. && z<.25) return sx[tb][Int_t(z/.025)]; | |
388 | ||
a790abc6 | 389 | Double_t m = 0.; for(Int_t id=10; id--;) m+=sx[tb][id]; |
390 | return m*.1; | |
762571f0 | 391 | |
b72f4eaf | 392 | } |
393 | ||
394 | //___________________________________________________________________________ | |
1fd9389f | 395 | Double_t AliTRDcluster::GetSYdrift(Int_t tb, Int_t ly, Double_t/* z*/) |
b72f4eaf | 396 | { |
762571f0 | 397 | // |
398 | // Returns the error parameterization for TRD clusters as function of the drift length (here calibrated time bin tb) | |
399 | // and optionally distance to anode wire (z) for the LUT r-phi cluster shape. By default (no z information) the largest | |
400 | // value over all cluster to wire values is chosen. | |
401 | // | |
402 | // For the LUT method the dependence of s_y with x and d is obtained via a fit to the cluster to MC | |
403 | // resolution. (see class AliTRDclusterResolution for more details). A normalization to the reference radial position | |
404 | // x0 = 0.675 (tb=5 for ideal vd) is also applied (see GetSYprf()). The function is *NOT* calibration aware ! | |
405 | // The result is displayed in the figure below as a 2D plot and also as the projection on the drift axis. A comparison | |
406 | // with the GAUS parameterization is also given | |
407 | // | |
408 | // For the GAUS method the dependence of s_y with x is *analytic* and it is expressed by the relation. | |
409 | // BEGIN_LATEX | |
410 | // #sigma^{2}_{y} = #sigma^{2}_{PRF} + #frac{x#delta_{t}^{2}}{(1+tg(#alpha_{L}))^{2}} | |
411 | // END_LATEX | |
412 | // The result is displayed in the figure below as function of the drift time and compared with the LUT parameterization. | |
413 | //Begin_Html | |
414 | //<img src="TRD/clusterYerrorDiff2D.gif"> | |
415 | //<img src="TRD/clusterYerrorDiff1D.gif"> | |
416 | //End_Html | |
417 | // | |
418 | // Author | |
419 | // A.Bercuci <A.Bercuci@gsi.de> | |
420 | // | |
1fd9389f | 421 | |
b72f4eaf | 422 | if(tb<1 || tb>=24) return 10.; // return huge [10cm] |
d03bfe2b | 423 | static const Float_t lSy[6][24] = { |
1fd9389f | 424 | {75.7561, 0.0325, 0.0175, 0.0174, 0.0206, 0.0232, |
425 | 0.0253, 0.0262, 0.0265, 0.0264, 0.0266, 0.0257, | |
426 | 0.0258, 0.0261, 0.0259, 0.0253, 0.0257, 0.0261, | |
427 | 0.0255, 0.0250, 0.0259, 0.0266, 0.0278, 0.0319 | |
428 | }, | |
429 | {49.2252, 0.0371, 0.0204, 0.0189, 0.0230, 0.0261, | |
430 | 0.0281, 0.0290, 0.0292, 0.0286, 0.0277, 0.0279, | |
431 | 0.0285, 0.0281, 0.0291, 0.0281, 0.0281, 0.0282, | |
432 | 0.0272, 0.0282, 0.0282, 0.0284, 0.0310, 0.0334 | |
433 | }, | |
434 | {55.1674, 0.0388, 0.0212, 0.0200, 0.0239, 0.0271, | |
435 | 0.0288, 0.0299, 0.0306, 0.0300, 0.0296, 0.0303, | |
436 | 0.0293, 0.0290, 0.0291, 0.0294, 0.0295, 0.0290, | |
437 | 0.0293, 0.0292, 0.0292, 0.0293, 0.0316, 0.0358 | |
438 | }, | |
439 | {45.1004, 0.0411, 0.0225, 0.0215, 0.0249, 0.0281, | |
440 | 0.0301, 0.0315, 0.0320, 0.0308, 0.0318, 0.0321, | |
441 | 0.0312, 0.0311, 0.0316, 0.0315, 0.0310, 0.0308, | |
442 | 0.0313, 0.0303, 0.0314, 0.0314, 0.0324, 0.0369 | |
443 | }, | |
444 | {43.8614, 0.0420, 0.0239, 0.0224, 0.0268, 0.0296, | |
445 | 0.0322, 0.0336, 0.0333, 0.0326, 0.0321, 0.0325, | |
446 | 0.0329, 0.0326, 0.0323, 0.0322, 0.0326, 0.0320, | |
447 | 0.0329, 0.0319, 0.0314, 0.0329, 0.0341, 0.0373 | |
448 | }, | |
449 | {40.5440, 0.0434, 0.0246, 0.0236, 0.0275, 0.0311, | |
450 | 0.0332, 0.0345, 0.0347, 0.0347, 0.0340, 0.0336, | |
451 | 0.0339, 0.0344, 0.0339, 0.0341, 0.0341, 0.0342, | |
452 | 0.0345, 0.0328, 0.0341, 0.0332, 0.0356, 0.0398 | |
453 | }, | |
454 | }; | |
a790abc6 | 455 | // adjusted ... |
456 | return TMath::Max(lSy[ly][tb]-0.0150, 0.0010); | |
1fd9389f | 457 | |
458 | /* const Double_t sy[24][10]={ | |
b72f4eaf | 459 | {0.000e+00, 2.610e-01, 0.000e+00, 0.000e+00, 0.000e+00, 0.000e+00, 0.000e+00, 0.000e+00, 0.000e+00, 4.680e-01}, |
460 | {3.019e-02, 3.036e-02, 3.131e-02, 3.203e-02, 3.294e-02, 3.407e-02, 3.555e-02, 3.682e-02, 3.766e-02, 3.824e-02}, | |
461 | {1.773e-02, 1.778e-02, 1.772e-02, 1.790e-02, 1.807e-02, 1.833e-02, 1.873e-02, 1.905e-02, 1.958e-02, 2.029e-02}, | |
462 | {1.774e-02, 1.772e-02, 1.746e-02, 1.738e-02, 1.756e-02, 1.756e-02, 1.739e-02, 1.720e-02, 1.743e-02, 1.769e-02}, | |
463 | {2.064e-02, 2.078e-02, 2.069e-02, 2.060e-02, 2.033e-02, 2.024e-02, 2.022e-02, 1.961e-02, 1.922e-02, 1.901e-02}, | |
464 | {2.382e-02, 2.379e-02, 2.371e-02, 2.333e-02, 2.318e-02, 2.285e-02, 2.255e-02, 2.244e-02, 2.174e-02, 2.132e-02}, | |
465 | {2.615e-02, 2.589e-02, 2.539e-02, 2.493e-02, 2.420e-02, 2.396e-02, 2.362e-02, 2.342e-02, 2.321e-02, 2.330e-02}, | |
466 | {2.640e-02, 2.638e-02, 2.577e-02, 2.548e-02, 2.477e-02, 2.436e-02, 2.416e-02, 2.401e-02, 2.399e-02, 2.402e-02}, | |
467 | {2.647e-02, 2.632e-02, 2.587e-02, 2.546e-02, 2.465e-02, 2.447e-02, 2.429e-02, 2.415e-02, 2.429e-02, 2.475e-02}, | |
468 | {2.657e-02, 2.637e-02, 2.580e-02, 2.525e-02, 2.492e-02, 2.441e-02, 2.446e-02, 2.441e-02, 2.478e-02, 2.491e-02}, | |
469 | {2.640e-02, 2.608e-02, 2.583e-02, 2.539e-02, 2.478e-02, 2.440e-02, 2.456e-02, 2.464e-02, 2.486e-02, 2.533e-02}, | |
470 | {2.636e-02, 2.630e-02, 2.584e-02, 2.542e-02, 2.483e-02, 2.451e-02, 2.449e-02, 2.467e-02, 2.496e-02, 2.554e-02}, | |
471 | {2.634e-02, 2.629e-02, 2.583e-02, 2.526e-02, 2.480e-02, 2.460e-02, 2.458e-02, 2.472e-02, 2.518e-02, 2.549e-02}, | |
472 | {2.629e-02, 2.621e-02, 2.581e-02, 2.527e-02, 2.480e-02, 2.458e-02, 2.451e-02, 2.485e-02, 2.516e-02, 2.547e-02}, | |
473 | {2.629e-02, 2.607e-02, 2.573e-02, 2.543e-02, 2.485e-02, 2.464e-02, 2.452e-02, 2.476e-02, 2.505e-02, 2.550e-02}, | |
474 | {2.635e-02, 2.613e-02, 2.578e-02, 2.523e-02, 2.491e-02, 2.465e-02, 2.470e-02, 2.467e-02, 2.515e-02, 2.564e-02}, | |
475 | {2.613e-02, 2.602e-02, 2.587e-02, 2.526e-02, 2.507e-02, 2.482e-02, 2.456e-02, 2.486e-02, 2.509e-02, 2.572e-02}, | |
476 | {2.620e-02, 2.599e-02, 2.563e-02, 2.528e-02, 2.484e-02, 2.462e-02, 2.464e-02, 2.476e-02, 2.513e-02, 2.571e-02}, | |
477 | {2.634e-02, 2.596e-02, 2.565e-02, 2.519e-02, 2.497e-02, 2.457e-02, 2.450e-02, 2.481e-02, 2.511e-02, 2.540e-02}, | |
478 | {2.593e-02, 2.589e-02, 2.563e-02, 2.511e-02, 2.472e-02, 2.453e-02, 2.452e-02, 2.474e-02, 2.501e-02, 2.543e-02}, | |
479 | {2.576e-02, 2.582e-02, 2.526e-02, 2.505e-02, 2.462e-02, 2.446e-02, 2.445e-02, 2.466e-02, 2.486e-02, 2.510e-02}, | |
480 | {2.571e-02, 2.549e-02, 2.533e-02, 2.501e-02, 2.453e-02, 2.443e-02, 2.445e-02, 2.450e-02, 2.448e-02, 2.469e-02}, | |
481 | {2.812e-02, 2.786e-02, 2.776e-02, 2.723e-02, 2.695e-02, 2.650e-02, 2.642e-02, 2.617e-02, 2.612e-02, 2.610e-02}, | |
482 | {3.251e-02, 3.267e-02, 3.223e-02, 3.183e-02, 3.125e-02, 3.106e-02, 3.067e-02, 3.010e-02, 2.936e-02, 2.927e-02} | |
483 | }; | |
1fd9389f | 484 | if(z>=0. && z<.25) return sy[tb][Int_t(z/.025)] - sy[5][Int_t(z/.025)]; |
b72f4eaf | 485 | |
1fd9389f | 486 | Double_t m = -1.e8; for(Int_t id=10; id--;) if((sy[tb][id] - sy[5][id])>m) m=sy[tb][id]-sy[5][id]; |
b72f4eaf | 487 | |
1fd9389f | 488 | return m;*/ |
b72f4eaf | 489 | } |
490 | ||
1fd9389f | 491 | //___________________________________________________________________________ |
492 | Double_t AliTRDcluster::GetSYcharge(Float_t q) | |
493 | { | |
762571f0 | 494 | // |
495 | // Parameterization of the r-phi resolution component due to cluster charge. | |
496 | // The value is the offset from the nominal cluster resolution defined as the | |
497 | // cluster resolution at average cluster charge (q0). | |
498 | // | |
499 | // BEGIN_LATEX | |
500 | // #Delta #sigma_{y}(q) = a*(#frac{1}{q} - #frac{1}{q_{0}}) | |
501 | // q_{0} #approx 50 | |
502 | // END_LATEX | |
503 | // The definition is *NOT* robust against gain fluctuations and thus two approaches are possible | |
504 | // when residual miscalibration are available: | |
505 | // - determine parameterization with a resolution matching those of the gain | |
506 | // - define an analytic model which scales with the gain. | |
507 | // | |
508 | // For more details please see AliTRDclusterResolution::ProcessCharge() | |
509 | // | |
510 | //Begin_Html | |
511 | //<img src="TRD/clusterQerror.gif"> | |
512 | //End_Html | |
513 | // | |
514 | // Author | |
515 | // A.Bercuci <A.Bercuci@gsi.de> | |
516 | // | |
1fd9389f | 517 | |
518 | const Float_t sq0inv = 0.019962; // [1/q0] | |
a790abc6 | 519 | const Float_t sqb = 0.037328; // [cm] |
1fd9389f | 520 | |
521 | return sqb*(1./q - sq0inv); | |
522 | } | |
523 | ||
524 | //___________________________________________________________________________ | |
525 | Double_t AliTRDcluster::GetSYprf(Int_t ly, Double_t center, Double_t s2) | |
526 | { | |
762571f0 | 527 | // |
528 | // Parameterization of the cluster error in the r-phi direction due to charge sharing between | |
529 | // adiacent pads. Should be identical to what is provided in the OCDB as PRF [TODO] | |
530 | // | |
531 | // The parameterization is obtained from fitting cluster resolution at phi=exb and |x-0.675|<0.225. | |
532 | // For more details see AliTRDclusterResolution::ProcessCenter(). | |
533 | // | |
534 | //Begin_Html | |
535 | //<img src="TRD/clusterPRFerror.gif"> | |
536 | //End_Html | |
537 | // | |
538 | // Author | |
539 | // A.Bercuci <A.Bercuci@gsi.de> | |
540 | // | |
1fd9389f | 541 | |
542 | /* const Float_t scy[AliTRDgeometry::kNlayer][4] = { | |
543 | {2.827e-02, 9.600e-04, 4.296e-01, 2.271e-02}, | |
544 | {2.952e-02,-2.198e-04, 4.146e-01, 2.339e-02}, | |
545 | {3.090e-02, 1.514e-03, 4.020e-01, 2.402e-02}, | |
546 | {3.260e-02,-2.037e-03, 3.946e-01, 2.509e-02}, | |
547 | {3.439e-02,-3.601e-04, 3.883e-01, 2.623e-02}, | |
548 | {3.510e-02, 2.066e-03, 3.651e-01, 2.588e-02}, | |
549 | };*/ | |
550 | const Float_t lPRF[] = {0.438, 0.403, 0.393, 0.382, 0.376, 0.345}; | |
551 | ||
552 | return s2*TMath::Gaus(center, 0., lPRF[ly]); | |
553 | } | |
554 | ||
555 | ||
b72f4eaf | 556 | //___________________________________________________________________________ |
557 | Double_t AliTRDcluster::GetXcorr(Int_t tb, Double_t z) | |
538f6383 | 558 | { |
762571f0 | 559 | // |
560 | // Drift length correction [cm]. Due to variation of mean drift velocity along the drift region | |
561 | // from nominal vd at xd->infinity. For drift velocity determination based on tracking information | |
562 | // the correction should be negligible. | |
563 | //Begin_Html | |
564 | //<img src="TRD/clusterXcorr.gif"> | |
565 | //End_Html | |
566 | // TODO to be parametrized in term of drift velocity at infinite drift length | |
567 | // A.Bercuci (Mar 28 2009) | |
568 | // | |
538f6383 | 569 | |
570 | if(tb<0 || tb>=24) return 0.; | |
b72f4eaf | 571 | const Int_t nd = 5; |
d03bfe2b | 572 | static const Double_t dx[24][nd]={ |
b72f4eaf | 573 | {+1.747e-01,+3.195e-01,+1.641e-01,+1.607e-01,+6.002e-01}, |
574 | {+5.468e-02,+5.760e-02,+6.365e-02,+8.003e-02,+1.067e-01}, | |
575 | {-6.327e-02,-6.339e-02,-6.423e-02,-6.900e-02,-7.949e-02}, | |
576 | {-1.417e-01,-1.424e-01,-1.450e-01,-1.465e-01,-1.514e-01}, | |
577 | {-1.637e-01,-1.619e-01,-1.622e-01,-1.613e-01,-1.648e-01}, | |
578 | {-1.386e-01,-1.334e-01,-1.261e-01,-1.276e-01,-1.314e-01}, | |
579 | {-8.799e-02,-8.299e-02,-7.861e-02,-8.038e-02,-8.436e-02}, | |
580 | {-5.139e-02,-4.849e-02,-4.641e-02,-4.965e-02,-5.286e-02}, | |
581 | {-2.927e-02,-2.773e-02,-2.807e-02,-3.021e-02,-3.378e-02}, | |
582 | {-1.380e-02,-1.229e-02,-1.335e-02,-1.547e-02,-1.984e-02}, | |
583 | {-4.168e-03,-4.601e-03,-5.462e-03,-8.164e-03,-1.035e-02}, | |
584 | {+2.044e-03,+1.889e-03,+9.603e-04,-1.342e-03,-3.736e-03}, | |
585 | {+3.568e-03,+3.581e-03,+2.391e-03,+2.942e-05,-1.585e-03}, | |
586 | {+4.403e-03,+4.571e-03,+3.509e-03,+8.703e-04,-1.425e-03}, | |
587 | {+4.941e-03,+4.808e-03,+3.284e-03,+1.105e-03,-1.208e-03}, | |
588 | {+5.124e-03,+5.022e-03,+4.305e-03,+2.023e-03,-1.145e-03}, | |
589 | {+4.882e-03,+4.008e-03,+3.408e-03,+7.886e-04,-1.356e-03}, | |
590 | {+3.852e-03,+3.539e-03,+2.057e-03,+1.670e-04,-1.993e-03}, | |
591 | {+2.154e-03,+2.111e-03,+5.723e-04,-1.254e-03,-3.256e-03}, | |
592 | {+1.755e-03,+2.101e-03,+9.516e-04,-1.649e-03,-3.394e-03}, | |
593 | {+1.617e-03,+1.662e-03,+4.169e-04,-9.843e-04,-4.309e-03}, | |
594 | {-9.204e-03,-9.069e-03,-1.182e-02,-1.458e-02,-1.880e-02}, | |
595 | {-6.727e-02,-6.820e-02,-6.804e-02,-7.134e-02,-7.615e-02}, | |
596 | {-1.802e-01,-1.733e-01,-1.633e-01,-1.601e-01,-1.632e-01} | |
597 | }; | |
598 | // const Double_t dx[24][nd]={ | |
599 | // {+0.000e+00,+0.000e+00,+0.000e+00,+0.000e+00,+0.000e+00,+0.000e+00,+0.000e+00,+0.000e+00,+0.000e+00,+0.000e+00}, | |
600 | // {-2.763e-04,-2.380e-04,-6.286e-04,-9.424e-04,+1.046e-03,+1.932e-03,+1.620e-03,+1.951e-03,-1.321e-03,-1.115e-03}, | |
601 | // {-1.825e-03,-9.245e-04,-1.012e-03,-8.215e-04,+2.703e-05,+1.403e-03,+2.340e-03,+2.577e-03,+2.017e-03,+8.006e-04}, | |
602 | // {-3.070e-03,-8.563e-04,-1.257e-03,+8.491e-05,+4.503e-04,-2.467e-05,-1.793e-04,+5.085e-04,+1.321e-03,+4.056e-04}, | |
603 | // {-3.637e-03,-2.857e-03,-3.098e-03,-2.304e-03,-1.467e-03,-1.755e-03,+4.585e-04,+2.757e-03,+3.184e-03,+3.525e-03}, | |
604 | // {-9.884e-03,-7.695e-03,-7.290e-03,-3.990e-03,-9.982e-04,+2.226e-03,+3.375e-03,+6.419e-03,+7.209e-03,+6.891e-03}, | |
605 | // {-6.844e-03,-5.807e-03,-4.012e-03,-1.566e-03,+5.035e-04,+2.024e-03,+3.225e-03,+3.918e-03,+5.942e-03,+6.024e-03}, | |
606 | // {-2.628e-03,-2.201e-03,-4.562e-04,+9.832e-04,+3.411e-03,+2.062e-03,+1.526e-03,+9.350e-04,+8.842e-04,+1.007e-03}, | |
607 | // {+6.603e-04,+1.545e-03,+1.681e-03,+1.918e-03,+2.165e-03,+1.825e-03,+1.691e-03,-1.923e-04,+1.835e-04,-1.284e-03}, | |
608 | // {+1.895e-03,+1.586e-03,+2.000e-03,+3.537e-03,+2.526e-03,+1.316e-03,+8.229e-04,-7.671e-05,-2.175e-03,-3.528e-03}, | |
609 | // {+2.927e-03,+3.369e-03,+3.603e-03,+2.675e-03,+2.737e-03,+1.133e-03,+4.318e-04,-1.215e-03,-2.443e-03,-3.116e-03}, | |
610 | // {+3.072e-03,+3.564e-03,+3.612e-03,+3.149e-03,+2.768e-03,+1.186e-03,+3.083e-04,-1.447e-03,-2.480e-03,-3.263e-03}, | |
611 | // {+2.697e-03,+3.565e-03,+3.759e-03,+2.855e-03,+2.909e-03,+6.564e-04,-5.224e-04,-3.309e-04,-1.636e-03,-3.739e-03}, | |
612 | // {+3.633e-03,+3.232e-03,+3.727e-03,+3.024e-03,+3.365e-03,+1.598e-03,-6.903e-04,-1.039e-03,-3.176e-03,-4.472e-03}, | |
613 | // {+2.999e-03,+3.942e-03,+3.322e-03,+3.162e-03,+1.978e-03,+1.657e-03,-4.760e-04,-8.343e-04,-2.346e-03,-3.281e-03}, | |
614 | // {+3.734e-03,+3.098e-03,+3.435e-03,+2.512e-03,+2.651e-03,+1.745e-03,+9.424e-04,-1.404e-03,-3.177e-03,-4.444e-03}, | |
615 | // {+3.204e-03,+4.003e-03,+3.068e-03,+2.697e-03,+3.187e-03,+3.878e-04,-1.124e-04,-1.855e-03,-2.584e-03,-3.807e-03}, | |
616 | // {+2.653e-03,+3.631e-03,+2.327e-03,+3.460e-03,+1.810e-03,+1.244e-03,-3.651e-04,-2.664e-04,-2.307e-03,-3.642e-03}, | |
617 | // {+2.538e-03,+3.208e-03,+2.390e-03,+3.519e-03,+1.763e-03,+1.330e-04,+1.669e-04,-1.422e-03,-1.685e-03,-3.519e-03}, | |
618 | // {+2.605e-03,+2.465e-03,+2.771e-03,+2.966e-03,+2.361e-03,+6.029e-04,-4.435e-04,-1.876e-03,-1.694e-03,-3.757e-03}, | |
619 | // {+2.866e-03,+3.315e-03,+3.146e-03,+2.117e-03,+1.933e-03,+9.339e-04,+9.556e-04,-1.314e-03,-3.615e-03,-3.558e-03}, | |
620 | // {+4.002e-03,+3.543e-03,+3.631e-03,+4.127e-03,+1.919e-03,-2.852e-04,-9.484e-04,-2.060e-03,-4.477e-03,-5.491e-03}, | |
621 | // {+6.029e-03,+5.147e-03,+4.286e-03,+2.215e-03,+9.240e-04,-1.554e-03,-2.366e-03,-3.635e-03,-5.372e-03,-6.467e-03}, | |
622 | // {+3.941e-03,+3.995e-03,+5.638e-04,-3.332e-04,-2.539e-03,-3.764e-03,-3.647e-03,-4.900e-03,-5.414e-03,-5.202e-03} | |
623 | // }; | |
624 | if(z>=0. && z<.25) return dx[tb][Int_t(z/.025)]; | |
625 | ||
626 | Double_t m = 0.; for(Int_t id=nd; id--;) m+=dx[tb][id]; | |
627 | return m/nd; | |
538f6383 | 628 | } |
629 | ||
630 | //___________________________________________________________________________ | |
b72f4eaf | 631 | Double_t AliTRDcluster::GetYcorr(Int_t ly, Float_t y) |
538f6383 | 632 | { |
762571f0 | 633 | // |
634 | // PRF correction for the LUT r-phi cluster shape. | |
635 | //Begin_Html | |
636 | //<img src="TRD/clusterYcorr.gif"> | |
637 | //End_Html | |
638 | // | |
1fd9389f | 639 | |
d03bfe2b | 640 | static const Float_t cy[AliTRDgeometry::kNlayer][3] = { |
538f6383 | 641 | { 4.014e-04, 8.605e-03, -6.880e+00}, |
642 | {-3.061e-04, 9.663e-03, -6.789e+00}, | |
643 | { 1.124e-03, 1.105e-02, -6.825e+00}, | |
644 | {-1.527e-03, 1.231e-02, -6.777e+00}, | |
645 | { 2.150e-03, 1.387e-02, -6.783e+00}, | |
646 | {-1.296e-03, 1.486e-02, -6.825e+00} | |
647 | }; | |
648 | ||
649 | return cy[ly][0] + cy[ly][1] * TMath::Sin(cy[ly][2] * y); | |
650 | } | |
651 | ||
5843e420 | 652 | //_____________________________________________________________________________ |
762571f0 | 653 | Float_t AliTRDcluster::GetXloc(Double_t t0, Double_t vd |
654 | , const Double_t *const /*q*/ | |
655 | , const Double_t *const /*xq*/ | |
656 | , Double_t /*z*/) | |
5843e420 | 657 | { |
762571f0 | 658 | // |
659 | // (Re)Calculate cluster position in the x direction in local chamber coordinates (with respect to the anode wire | |
660 | // position) using all available information from tracking. | |
661 | // Input parameters: | |
662 | // t0 - calibration aware trigger delay [us] | |
663 | // vd - drift velocity in the region of the cluster [cm/us] | |
664 | // z - distance to the anode wire [cm]. By default average over the drift cell width. | |
665 | // q & xq - array of charges and cluster positions from previous clusters in the tracklet [a.u.] | |
666 | // Output values : | |
667 | // return x position of the cluster with respect to the | |
668 | // anode wire using all tracking information | |
669 | // | |
670 | // The estimation of the radial position is based on calculating the drift time and the drift velocity at the point of | |
671 | // estimation. The drift time can be estimated according to the expression: | |
672 | // BEGIN_LATEX | |
673 | // t_{drift} = t_{bin} - t_{0} - t_{cause}(x) - t_{TC}(q_{i-1}, q_{i-2}, ...) | |
674 | // END_LATEX | |
675 | // where t_0 is the delay of the trigger signal. t_cause is the causality delay between ionisation electrons hitting | |
676 | // the anode and the registration of maximum signal by the electronics - it is due to the rising time of the TRF | |
677 | // A second order correction here comes from the fact that the time spreading of charge at anode is the convolution of | |
678 | // TRF with the diffusion and thus cross-talk between clusters before and after local clusters changes with drift length. | |
679 | // t_TC is the residual charge from previous (in time) clusters due to residual tails after tail cancellation. | |
680 | // This tends to push cluster forward and depends on the magnitude of their charge. | |
681 | // | |
682 | // The drift velocity varies with the drift length (and distance to anode wire) as described by cell structure simulation. | |
683 | // Thus one, in principle, can calculate iteratively the drift length from the expression: | |
684 | // BEGIN_LATEX | |
685 | // x = t_{drift}(x)*v_{drift}(x) | |
686 | // END_LATEX | |
687 | // In practice we use a numerical approach (AliTRDcluster::GetXcorr()) to correct for anisochronity obtained from MC | |
688 | // comparison (see AliTRDclusterResolution::ProcessSigma()). Also the calibration of 0 approximation (no x dependence) | |
689 | // for t_cause is obtained from MC comparisons and impossible to disentangle in real life from trigger delay. | |
690 | // | |
691 | // Author | |
692 | // Alex Bercuci <A.Bercuci@gsi.de> | |
693 | // | |
5843e420 | 694 | |
834ac2c9 | 695 | AliTRDCommonParam *cp = AliTRDCommonParam::Instance(); |
696 | Double_t fFreq = cp->GetSamplingFrequency(); | |
b72f4eaf | 697 | |
834ac2c9 | 698 | //drift time corresponding to the center of the time bin |
9912e83c | 699 | Double_t td = (fPadTime + .5)/fFreq; // [us] |
5843e420 | 700 | // correction for t0 |
701 | td -= t0; | |
9912e83c | 702 | // time bin corrected for t0 |
1fd9389f | 703 | // Bug in TMath::Nint().root-5.23.02 |
9912e83c | 704 | // TMath::Nint(3.5) = 4 and TMath::Nint(4.5) = 4 |
705 | Double_t tmp = td*fFreq; | |
706 | fLocalTimeBin = Char_t(TMath::Floor(tmp)); | |
707 | if(tmp-fLocalTimeBin > .5) fLocalTimeBin++; | |
b72f4eaf | 708 | if(td < .2) return 0.; |
709 | // TRF rising time (fitted) | |
710 | // It should be absorbed by the t0. For the moment t0 is 0 for simulations. | |
711 | // A.Bercuci (Mar 26 2009) | |
ec3f0161 | 712 | td -= 0.189; |
713 | ||
b72f4eaf | 714 | // apply fitted correction |
c388cdcb | 715 | Float_t x = td*vd + (HasXcorr() ? GetXcorr(fLocalTimeBin) : 0.); |
c96d03ba | 716 | if(x>0.&&x<.5*AliTRDgeometry::CamHght()+AliTRDgeometry::CdrHght()) SetInChamber(); |
b72f4eaf | 717 | |
718 | return x; | |
5843e420 | 719 | } |
720 | ||
721 | //_____________________________________________________________________________ | |
762571f0 | 722 | Float_t AliTRDcluster::GetYloc(Double_t y0, Double_t s2, Double_t W |
723 | , Double_t *const y1, Double_t *const y2) | |
5843e420 | 724 | { |
762571f0 | 725 | // |
726 | // Calculate, in tracking cooordinate system, the r-phi offset the cluster | |
727 | // from the middle of the center pad. Three possible methods are implemented: | |
728 | // - Center of Gravity (COG) see AliTRDcluster::GetDYcog() | |
729 | // - Look-up Table (LUT) see AliTRDcluster::GetDYlut() | |
730 | // - Gauss shape (GAUS) see AliTRDcluster::GetDYgauss() | |
731 | // In addition for the case of LUT method position corrections are also | |
732 | // applied (see AliTRDcluster::GetYcorr()) | |
733 | // | |
5843e420 | 734 | |
b72f4eaf | 735 | if(IsRPhiMethod(kCOG)) GetDYcog(); |
736 | else if(IsRPhiMethod(kLUT)) GetDYlut(); | |
1fd9389f | 737 | else if(IsRPhiMethod(kGAUS)) GetDYgauss(s2/W/W, y1, y2); |
738 | else return 0.; | |
834ac2c9 | 739 | |
b72f4eaf | 740 | if(y1) (*y1)*=W; |
741 | if(y2) (*y2)*=W; | |
5843e420 | 742 | |
642fe710 | 743 | return y0+fCenter*W+(IsRPhiMethod(kLUT)?GetYcorr(AliTRDgeometry::GetLayer(fDetector), fCenter):0.); |
5843e420 | 744 | } |
203967fc | 745 | |
1fd9389f | 746 | //___________________________________________________________________________ |
747 | void AliTRDcluster::SetSigmaY2(Float_t s2, Float_t dt, Float_t exb, Float_t x, Float_t z, Float_t tgp) | |
748 | { | |
762571f0 | 749 | // |
750 | // Set variance of TRD cluster in the r-phi direction for each method. | |
751 | // Parameters : | |
752 | // - s2 - variance due to PRF width for the case of Gauss model. Replaced by parameterization in case of LUT. | |
753 | // - dt - transversal diffusion coeficient | |
754 | // - exb - tg of lorentz angle | |
755 | // - x - drift length - with respect to the anode wire | |
756 | // - z - offset from the anode wire | |
757 | // - tgp - local tangent of the track momentum azimuthal angle | |
758 | // | |
759 | // The ingredients from which the error is computed are: | |
760 | // - PRF (charge sharing on adjacent pads) - see AliTRDcluster::GetSYprf() | |
761 | // - diffusion (dependence with drift length and [2nd order] distance to anode wire) - see AliTRDcluster::GetSYdrift() | |
762 | // - charge of the cluster (complex dependence on gain and tail cancellation) - see AliTRDcluster::GetSYcharge() | |
763 | // - lorentz angle (dependence on the drift length and [2nd order] distance to anode wire) - see AliTRDcluster::GetSX() | |
764 | // - track angle (superposition of charges on the anode wire) - see AliTRDseedV1::Fit() | |
765 | // - projection of radial(x) error on r-phi due to fixed value assumed in tracking for x - see AliTRDseedV1::Fit() | |
766 | // | |
767 | // The last 2 contributions to cluster error can be estimated only during tracking when the track angle | |
768 | // is known (tgp). For this reason the errors (and optional position) of TRD clusters are recalculated during | |
769 | // tracking and thus clusters attached to tracks might differ from bare clusters. | |
770 | // | |
771 | // Taking into account all contributions one can write the the TRD cluster error parameterization as: | |
772 | // BEGIN_LATEX | |
773 | // #sigma_{y}^{2} = (#sigma_{diff}*Gauss(0, s_{ly}) + #delta_{#sigma}(q))^{2} + tg^{2}(#alpha_{L})*#sigma_{x}^{2} + tg^{2}(#phi-#alpha_{L})*#sigma_{x}^{2}+[tg(#phi-#alpha_{L})*tg(#alpha_{L})*x]^{2}/12 | |
774 | // END_LATEX | |
775 | // From this formula one can deduce a that the simplest calibration method for PRF and diffusion contributions is | |
776 | // by measuring resolution at B=0T and phi=0. To disentangle further the two remaining contributions one has | |
777 | // to represent s2 as a function of drift length. | |
778 | // | |
779 | // In the gaussian model the diffusion contribution can be expressed as: | |
780 | // BEGIN_LATEX | |
781 | // #sigma^{2}_{y} = #sigma^{2}_{PRF} + #frac{x#delta_{t}^{2}}{(1+tg(#alpha_{L}))^{2}} | |
782 | // END_LATEX | |
783 | // thus resulting the PRF contribution. For the case of the LUT model both contributions have to be determined from | |
784 | // the fit (see AliTRDclusterResolution::ProcessCenter() for details). | |
785 | // | |
786 | // Author: | |
787 | // A.Bercuci <A.Bercuci@gsi.de> | |
788 | // | |
1fd9389f | 789 | |
790 | Float_t sigmaY2 = 0.; | |
791 | Int_t ly = AliTRDgeometry::GetLayer(fDetector); | |
792 | if(IsRPhiMethod(kCOG)) sigmaY2 = 4.e-4; | |
793 | else if(IsRPhiMethod(kLUT)){ | |
a790abc6 | 794 | Float_t sd = GetSYdrift(fLocalTimeBin, ly, z); //printf("drift[%6.2f] ", 1.e4*sd); |
795 | sigmaY2 = GetSYprf(ly, fCenter, sd); //printf("PRF[%6.2f] ", 1.e4*sigmaY2); | |
1fd9389f | 796 | // add charge contribution TODO scale with respect to s2 |
a790abc6 | 797 | sigmaY2+= GetSYcharge(TMath::Abs(fQ)); //printf("Q[%6.2f] ", 1.e4*sigmaY2); |
798 | sigmaY2 = TMath::Max(sigmaY2, Float_t(0.0010)); //!! protection | |
1fd9389f | 799 | sigmaY2*= sigmaY2; |
800 | } else if(IsRPhiMethod(kGAUS)){ | |
801 | // PRF contribution | |
802 | sigmaY2 = s2; | |
803 | // Diffusion contribution | |
804 | Double_t sD2 = dt/(1.+exb); sD2 *= sD2; sD2 *= x; | |
805 | sigmaY2+= sD2; | |
806 | // add charge contribution TODO scale with respect to s2 | |
807 | //sigmaY2+= GetSYcharge(TMath::Abs(fQ)); | |
808 | } | |
809 | ||
810 | // store tg^2(phi-a_L) and tg^2(a_L) | |
8908436f | 811 | // limit parametrization to a maximum angle of 25 deg |
812 | if(TMath::Abs(tgp)>0.466) tgp = (tgp>0.)?0.466:-0.466; | |
1fd9389f | 813 | Double_t tgg = (tgp-exb)/(1.+tgp*exb); tgg *= tgg; |
814 | Double_t exb2= exb*exb; | |
815 | ||
816 | // Lorentz angle shift contribution | |
817 | Float_t sx = GetSX(fLocalTimeBin, z); sx*=sx; | |
a790abc6 | 818 | sigmaY2+= exb2*sx; //printf("Al[%6.2f] ", 1.e4*TMath::Sqrt(sigmaY2)); |
1fd9389f | 819 | |
820 | // Radial contribution due to not measuring x in Kalman model | |
a790abc6 | 821 | sigmaY2+= tgg*sx; //printf("x[%6.2f] ", 1.e4*TMath::Sqrt(sigmaY2)); |
1fd9389f | 822 | |
823 | // Track angle contribution | |
a790abc6 | 824 | sigmaY2+= tgg*x*x*exb2/12.; //printf("angle[%6.2f]\n", 1.e4*TMath::Sqrt(sigmaY2)); |
1fd9389f | 825 | |
826 | AliCluster::SetSigmaY2(sigmaY2); | |
762571f0 | 827 | |
1fd9389f | 828 | } |
829 | ||
203967fc | 830 | //_____________________________________________________________________________ |
831 | Bool_t AliTRDcluster::IsEqual(const TObject *o) const | |
832 | { | |
833 | // | |
834 | // Compare relevant information of this cluster with another one | |
835 | // | |
836 | ||
837 | const AliTRDcluster *inCluster = dynamic_cast<const AliTRDcluster*>(o); | |
838 | if (!o || !inCluster) return kFALSE; | |
839 | ||
840 | if ( AliCluster::GetX() != inCluster->GetX() ) return kFALSE; | |
841 | if ( AliCluster::GetY() != inCluster->GetY() ) return kFALSE; | |
842 | if ( AliCluster::GetZ() != inCluster->GetZ() ) return kFALSE; | |
843 | if ( fQ != inCluster->fQ ) return kFALSE; | |
844 | if ( fDetector != inCluster->fDetector ) return kFALSE; | |
845 | if ( fPadCol != inCluster->fPadCol ) return kFALSE; | |
846 | if ( fPadRow != inCluster->fPadRow ) return kFALSE; | |
847 | if ( fPadTime != inCluster->fPadTime ) return kFALSE; | |
848 | if ( fClusterMasking != inCluster->fClusterMasking ) return kFALSE; | |
849 | if ( IsInChamber() != inCluster->IsInChamber() ) return kFALSE; | |
850 | if ( IsShared() != inCluster->IsShared() ) return kFALSE; | |
851 | if ( IsUsed() != inCluster->IsUsed() ) return kFALSE; | |
852 | ||
853 | return kTRUE; | |
762571f0 | 854 | |
203967fc | 855 | } |
856 | ||
857 | //_____________________________________________________________________________ | |
858 | void AliTRDcluster::Print(Option_t *o) const | |
859 | { | |
762571f0 | 860 | // |
861 | // Print cluster information | |
862 | // | |
863 | ||
c79857d5 | 864 | if(strcmp(o, "a")==0) { |
865 | AliInfo(Form( | |
866 | "\nDet[%3d] LTrC[%+6.2f %+6.2f %+6.2f] Q[%5.1f] FLAG[in(%c) use(%c) sh(%c)] Y[%s]" | |
867 | "\n LChC[c(%3d) r(%2d) t(%2d)] t-t0[%2d] Npad[%d] cen[%5.3f] mask[%d]" | |
868 | "\n QS[%3d %3d %3d %3d %3d %3d %3d] S2[%e %e]" | |
869 | , fDetector, GetX(), GetY(), GetZ(), fQ, | |
870 | IsInChamber() ? 'y' : 'n', | |
871 | IsUsed() ? 'y' : 'n', | |
872 | IsShared() ? 'y' : 'n', | |
873 | IsRPhiMethod(kGAUS)?"GAUS":(IsRPhiMethod(kLUT)?"LUT":"COG") | |
874 | , fPadCol, fPadRow, fPadTime, fLocalTimeBin, fNPads, fCenter, fClusterMasking | |
875 | , fSignals[0], fSignals[1], fSignals[2], fSignals[3] | |
876 | , fSignals[4], fSignals[5], fSignals[6] | |
877 | , GetSigmaY2(), GetSigmaZ2())); | |
878 | } else { | |
879 | AliInfo(Form("Det[%3d] LTrC[%+6.2f %+6.2f %+6.2f] Q[%5.1f] FLAG[in(%c) use(%c) sh(%c)] Y[%s]", | |
203967fc | 880 | fDetector, GetX(), GetY(), GetZ(), fQ, |
17de99aa | 881 | IsInChamber() ? 'y' : 'n', |
882 | IsUsed() ? 'y' : 'n', | |
883 | IsShared() ? 'y' : 'n', | |
884 | IsRPhiMethod(kGAUS)?"GAUS":(IsRPhiMethod(kLUT)?"LUT":"COG") | |
c79857d5 | 885 | )); |
886 | } | |
762571f0 | 887 | } |
203967fc | 888 | |
f5375dcb | 889 | //_____________________________________________________________________________ |
890 | void AliTRDcluster::SetPadMaskedPosition(UChar_t position) | |
891 | { | |
892 | // | |
762571f0 | 893 | // Store the pad corruption position code |
f5375dcb | 894 | // |
895 | // Code: 1 = left cluster | |
896 | // 2 = middle cluster; | |
897 | // 4 = right cluster | |
898 | // | |
762571f0 | 899 | |
900 | for (Int_t ipos = 0; ipos < 3; ipos++) { | |
901 | if (TESTBIT(position, ipos)) | |
f5375dcb | 902 | SETBIT(fClusterMasking, ipos); |
762571f0 | 903 | } |
f5375dcb | 904 | } |
905 | ||
906 | //_____________________________________________________________________________ | |
907 | void AliTRDcluster::SetPadMaskedStatus(UChar_t status) | |
908 | { | |
909 | // | |
762571f0 | 910 | // Store the status of the corrupted pad |
f5375dcb | 911 | // |
912 | // Code: 2 = noisy | |
913 | // 4 = Bridged Left | |
914 | // 8 = Bridged Right | |
915 | // 32 = Not Connected | |
762571f0 | 916 | // |
917 | ||
918 | for (Int_t ipos = 0; ipos < 5; ipos++) { | |
f5375dcb | 919 | if(TESTBIT(status, ipos)) |
920 | SETBIT(fClusterMasking, ipos + 3); | |
762571f0 | 921 | } |
922 | ||
f5375dcb | 923 | } |
b72f4eaf | 924 | |
925 | //___________________________________________________________________________ | |
762571f0 | 926 | Float_t AliTRDcluster::GetDYcog(const Double_t *const, const Double_t *const) |
b72f4eaf | 927 | { |
762571f0 | 928 | // |
929 | // Get COG position | |
930 | // Used for clusters with more than 3 pads - where LUT not applicable | |
931 | // | |
932 | ||
b72f4eaf | 933 | Double_t sum = fSignals[1] |
934 | +fSignals[2] | |
935 | +fSignals[3] | |
936 | +fSignals[4] | |
937 | +fSignals[5]; | |
938 | ||
939 | // ???????????? CBL | |
940 | // Go to 3 pad COG ???? | |
941 | // ???????????? CBL | |
942 | fCenter = (0.0 * (-fSignals[1] + fSignals[5]) | |
762571f0 | 943 | + (-fSignals[2] + fSignals[4])) / sum; |
b72f4eaf | 944 | |
945 | return fCenter; | |
946 | } | |
947 | ||
948 | //___________________________________________________________________________ | |
762571f0 | 949 | Float_t AliTRDcluster::GetDYlut(const Double_t *const, const Double_t *const) |
b72f4eaf | 950 | { |
951 | // | |
952 | // Calculates the cluster position using the lookup table. | |
953 | // Method provided by Bogdan Vulpescu. | |
954 | // | |
955 | ||
956 | if(!fgLUT) FillLUT(); | |
957 | ||
958 | Double_t ampL = fSignals[2], | |
959 | ampC = fSignals[3], | |
960 | ampR = fSignals[4]; | |
961 | Int_t ilayer = AliTRDgeometry::GetLayer(fDetector); | |
962 | ||
963 | Double_t x = 0.0; | |
964 | Double_t xmin, xmax, xwid; | |
965 | ||
966 | Int_t side = 0; | |
967 | Int_t ix; | |
968 | ||
969 | Double_t xMin[AliTRDgeometry::kNlayer] = { | |
970 | 0.006492, 0.006377, 0.006258, 0.006144, 0.006030, 0.005980 | |
971 | }; | |
972 | Double_t xMax[AliTRDgeometry::kNlayer] = { | |
973 | 0.960351, 0.965870, 0.970445, 0.974352, 0.977667, 0.996101 | |
974 | }; | |
975 | ||
976 | if (ampL > ampR) { | |
977 | x = (ampL - ampR) / ampC; | |
978 | side = -1; | |
979 | } | |
980 | else if (ampL < ampR) { | |
981 | x = (ampR - ampL) / ampC; | |
982 | side = +1; | |
983 | } | |
984 | ||
985 | if (ampL != ampR) { | |
986 | ||
987 | xmin = xMin[ilayer] + 0.000005; | |
988 | xmax = xMax[ilayer] - 0.000005; | |
989 | xwid = (xmax - xmin) / 127.0; | |
990 | ||
991 | if (x < xmin) fCenter = 0.0000; | |
992 | else if (x > xmax) fCenter = side * 0.5000; | |
993 | else { | |
994 | ix = (Int_t) ((x - xmin) / xwid); | |
995 | fCenter = side * fgLUT[ilayer*fgkNlut+ix]; | |
996 | } | |
997 | } else fCenter = 0.0; | |
998 | ||
999 | return fCenter; | |
1000 | } | |
1001 | ||
1002 | //___________________________________________________________________________ | |
1003 | Float_t AliTRDcluster::GetDYgauss(Double_t s2w, Double_t *const y1, Double_t *const y2) | |
1004 | { | |
1005 | // | |
1006 | // (Re)Calculate cluster position in the y direction in local chamber coordinates using all available information from tracking. | |
1007 | // | |
1008 | // Input parameters: | |
1009 | // s2 - sigma of gaussian parameterization (see bellow for the exact parameterization) | |
1010 | // W - pad width | |
1011 | // xd - drift length (with respect to the anode wire) [cm] | |
1012 | // wt - omega*tau = tg(a_L) | |
1013 | // Output values : | |
1014 | // y1 and y2 - partial positions based on 2 pads clusters | |
1015 | // return y position of the cluster from all information | |
1016 | // | |
1017 | // Estimation of y coordinate is based on the gaussian approximation of the PRF. Thus one may | |
1018 | // calculate the y position knowing the signals q_i-1, q_i and q_i+1 in the 3 adiacent pads by: | |
1019 | // BEGIN_LATEX | |
1020 | // y = #frac{1}{w_{1}+w_{2}}#[]{w_{1}#(){y_{0}-#frac{W}{2}+#frac{s^{2}}{W}ln#frac{q_{i}}{q_{i-1}}}+w_{2}#(){y_{0}+ #frac{W}{2}+#frac{s^{2}}{W}ln#frac{q_{i+1}}{q_{i}}}} | |
1021 | // END_LATEX | |
1022 | // where W is the pad width, y_0 is the position of the center pad and s^2 is given by | |
1023 | // BEGIN_LATEX | |
1024 | // s^{2} = s^{2}_{0} + s^{2}_{diff} (x,B) + #frac{tg^{2}(#phi-#alpha_{L})*l^{2}}{12} | |
1025 | // END_LATEX | |
1026 | // with s_0 being the PRF for 0 drift and track incidence phi equal to the lorentz angle a_L and the diffusion term | |
1027 | // being described by: | |
1028 | // BEGIN_LATEX | |
1029 | // s_{diff} (x,B) = #frac{D_{L}#sqrt{x}}{1+#(){#omega#tau}^{2}} | |
1030 | // END_LATEX | |
1031 | // with x being the drift length. The weights w_1 and w_2 are taken to be q_i-1^2 and q_i+1^2 respectively | |
1032 | // | |
1033 | // Authors | |
1034 | // Alex Bercuci <A.Bercuci@gsi.de> | |
1035 | // Theodor Rascanu <trascanu@stud.uni-frankfurt.de> | |
1036 | // | |
0b433f72 | 1037 | Double_t w1 = fSignals[2]*fSignals[2]; |
1038 | Double_t w2 = fSignals[4]*fSignals[4]; | |
1039 | Double_t w = w1+w2; | |
1040 | if(w<1.){ | |
1041 | AliError("Missing side signals for cluster."); | |
1042 | Print("a"); | |
1043 | return 0.; | |
1044 | } | |
1045 | ||
b72f4eaf | 1046 | //Double_t s2w = s2/W/W; |
1047 | Float_t y1r = fSignals[2]>0 ? (-0.5 + s2w*TMath::Log(fSignals[3]/(Float_t)fSignals[2])) : 0.; | |
1048 | Float_t y2r = fSignals[4]>0 ? (0.5 + s2w*TMath::Log(fSignals[4]/(Float_t)fSignals[3])) : 0.; | |
1049 | ||
1050 | if(y1) (*y1) = y1r; | |
1051 | if(y2) (*y2) = y2r; | |
1052 | ||
0b433f72 | 1053 | return fCenter = (w1*y1r+w2*y2r)/w; |
b72f4eaf | 1054 | } |
1055 | ||
1056 | ||
1057 | ||
1058 | //_____________________________________________________________________________ | |
1059 | void AliTRDcluster::FillLUT() | |
1060 | { | |
1061 | // | |
1062 | // Create the LUT | |
1063 | // | |
1064 | ||
1065 | // The lookup table from Bogdan | |
1066 | Float_t lut[AliTRDgeometry::kNlayer][fgkNlut] = { | |
1067 | { | |
1068 | 0.0070, 0.0150, 0.0224, 0.0298, 0.0374, 0.0454, 0.0533, 0.0611, | |
1069 | 0.0684, 0.0755, 0.0827, 0.0900, 0.0975, 0.1049, 0.1120, 0.1187, | |
1070 | 0.1253, 0.1318, 0.1385, 0.1453, 0.1519, 0.1584, 0.1646, 0.1704, | |
1071 | 0.1762, 0.1821, 0.1879, 0.1938, 0.1996, 0.2053, 0.2108, 0.2160, | |
1072 | 0.2210, 0.2260, 0.2310, 0.2361, 0.2411, 0.2461, 0.2509, 0.2557, | |
1073 | 0.2602, 0.2646, 0.2689, 0.2732, 0.2774, 0.2816, 0.2859, 0.2901, | |
1074 | 0.2942, 0.2983, 0.3022, 0.3061, 0.3099, 0.3136, 0.3172, 0.3207, | |
1075 | 0.3242, 0.3278, 0.3312, 0.3347, 0.3382, 0.3416, 0.3450, 0.3483, | |
1076 | 0.3515, 0.3547, 0.3579, 0.3609, 0.3639, 0.3669, 0.3698, 0.3727, | |
1077 | 0.3756, 0.3785, 0.3813, 0.3842, 0.3870, 0.3898, 0.3926, 0.3952, | |
1078 | 0.3979, 0.4005, 0.4032, 0.4057, 0.4082, 0.4108, 0.4132, 0.4157, | |
1079 | 0.4181, 0.4205, 0.4228, 0.4252, 0.4275, 0.4299, 0.4322, 0.4345, | |
1080 | 0.4367, 0.4390, 0.4412, 0.4434, 0.4456, 0.4478, 0.4499, 0.4520, | |
1081 | 0.4541, 0.4562, 0.4583, 0.4603, 0.4623, 0.4643, 0.4663, 0.4683, | |
1082 | 0.4702, 0.4722, 0.4741, 0.4758, 0.4774, 0.4790, 0.4805, 0.4824, | |
1083 | 0.4844, 0.4863, 0.4883, 0.4902, 0.4921, 0.4940, 0.4959, 0.4978 | |
1084 | }, | |
1085 | { | |
1086 | 0.0072, 0.0156, 0.0235, 0.0313, 0.0394, 0.0478, 0.0561, 0.0642, | |
1087 | 0.0718, 0.0792, 0.0868, 0.0947, 0.1025, 0.1101, 0.1172, 0.1241, | |
1088 | 0.1309, 0.1378, 0.1449, 0.1518, 0.1586, 0.1650, 0.1710, 0.1770, | |
1089 | 0.1830, 0.1891, 0.1952, 0.2011, 0.2070, 0.2125, 0.2177, 0.2229, | |
1090 | 0.2280, 0.2332, 0.2383, 0.2435, 0.2484, 0.2533, 0.2581, 0.2627, | |
1091 | 0.2670, 0.2714, 0.2757, 0.2799, 0.2842, 0.2884, 0.2927, 0.2968, | |
1092 | 0.3008, 0.3048, 0.3086, 0.3123, 0.3159, 0.3195, 0.3231, 0.3266, | |
1093 | 0.3301, 0.3335, 0.3370, 0.3404, 0.3438, 0.3471, 0.3504, 0.3536, | |
1094 | 0.3567, 0.3598, 0.3628, 0.3657, 0.3686, 0.3715, 0.3744, 0.3772, | |
1095 | 0.3800, 0.3828, 0.3856, 0.3884, 0.3911, 0.3938, 0.3965, 0.3991, | |
1096 | 0.4016, 0.4042, 0.4067, 0.4092, 0.4116, 0.4140, 0.4164, 0.4187, | |
1097 | 0.4211, 0.4234, 0.4257, 0.4280, 0.4302, 0.4325, 0.4347, 0.4369, | |
1098 | 0.4391, 0.4413, 0.4434, 0.4456, 0.4477, 0.4497, 0.4518, 0.4538, | |
1099 | 0.4558, 0.4578, 0.4598, 0.4618, 0.4637, 0.4656, 0.4675, 0.4694, | |
1100 | 0.4713, 0.4732, 0.4750, 0.4766, 0.4781, 0.4797, 0.4813, 0.4832, | |
1101 | 0.4851, 0.4870, 0.4888, 0.4906, 0.4925, 0.4942, 0.4960, 0.4978 | |
1102 | }, | |
1103 | { | |
1104 | 0.0075, 0.0163, 0.0246, 0.0328, 0.0415, 0.0504, 0.0592, 0.0674, | |
1105 | 0.0753, 0.0832, 0.0914, 0.0996, 0.1077, 0.1154, 0.1225, 0.1296, | |
1106 | 0.1369, 0.1442, 0.1515, 0.1585, 0.1652, 0.1714, 0.1776, 0.1839, | |
1107 | 0.1902, 0.1965, 0.2025, 0.2085, 0.2141, 0.2194, 0.2247, 0.2299, | |
1108 | 0.2352, 0.2405, 0.2457, 0.2507, 0.2557, 0.2604, 0.2649, 0.2693, | |
1109 | 0.2737, 0.2780, 0.2823, 0.2867, 0.2909, 0.2951, 0.2992, 0.3033, | |
1110 | 0.3072, 0.3110, 0.3146, 0.3182, 0.3218, 0.3253, 0.3288, 0.3323, | |
1111 | 0.3357, 0.3392, 0.3426, 0.3459, 0.3492, 0.3524, 0.3555, 0.3586, | |
1112 | 0.3616, 0.3645, 0.3674, 0.3703, 0.3731, 0.3759, 0.3787, 0.3815, | |
1113 | 0.3843, 0.3870, 0.3897, 0.3925, 0.3950, 0.3976, 0.4002, 0.4027, | |
1114 | 0.4052, 0.4076, 0.4101, 0.4124, 0.4148, 0.4171, 0.4194, 0.4217, | |
1115 | 0.4239, 0.4262, 0.4284, 0.4306, 0.4328, 0.4350, 0.4371, 0.4393, | |
1116 | 0.4414, 0.4435, 0.4455, 0.4476, 0.4496, 0.4516, 0.4536, 0.4555, | |
1117 | 0.4575, 0.4594, 0.4613, 0.4632, 0.4650, 0.4669, 0.4687, 0.4705, | |
1118 | 0.4723, 0.4741, 0.4758, 0.4773, 0.4789, 0.4804, 0.4821, 0.4839, | |
1119 | 0.4857, 0.4875, 0.4893, 0.4910, 0.4928, 0.4945, 0.4961, 0.4978 | |
1120 | }, | |
1121 | { | |
1122 | 0.0078, 0.0171, 0.0258, 0.0345, 0.0438, 0.0532, 0.0624, 0.0708, | |
1123 | 0.0791, 0.0875, 0.0962, 0.1048, 0.1130, 0.1206, 0.1281, 0.1356, | |
1124 | 0.1432, 0.1508, 0.1582, 0.1651, 0.1716, 0.1780, 0.1845, 0.1910, | |
1125 | 0.1975, 0.2038, 0.2099, 0.2155, 0.2210, 0.2263, 0.2317, 0.2371, | |
1126 | 0.2425, 0.2477, 0.2528, 0.2578, 0.2626, 0.2671, 0.2715, 0.2759, | |
1127 | 0.2803, 0.2846, 0.2890, 0.2933, 0.2975, 0.3016, 0.3056, 0.3095, | |
1128 | 0.3132, 0.3168, 0.3204, 0.3239, 0.3274, 0.3309, 0.3344, 0.3378, | |
1129 | 0.3412, 0.3446, 0.3479, 0.3511, 0.3543, 0.3574, 0.3603, 0.3633, | |
1130 | 0.3662, 0.3690, 0.3718, 0.3747, 0.3774, 0.3802, 0.3829, 0.3857, | |
1131 | 0.3883, 0.3910, 0.3936, 0.3962, 0.3987, 0.4012, 0.4037, 0.4061, | |
1132 | 0.4085, 0.4109, 0.4132, 0.4155, 0.4177, 0.4200, 0.4222, 0.4244, | |
1133 | 0.4266, 0.4288, 0.4309, 0.4331, 0.4352, 0.4373, 0.4394, 0.4414, | |
1134 | 0.4435, 0.4455, 0.4475, 0.4494, 0.4514, 0.4533, 0.4552, 0.4571, | |
1135 | 0.4590, 0.4608, 0.4626, 0.4645, 0.4662, 0.4680, 0.4698, 0.4715, | |
1136 | 0.4733, 0.4750, 0.4766, 0.4781, 0.4796, 0.4812, 0.4829, 0.4846, | |
1137 | 0.4863, 0.4880, 0.4897, 0.4914, 0.4930, 0.4946, 0.4963, 0.4979 | |
1138 | }, | |
1139 | { | |
1140 | 0.0081, 0.0178, 0.0270, 0.0364, 0.0463, 0.0562, 0.0656, 0.0744, | |
1141 | 0.0831, 0.0921, 0.1013, 0.1102, 0.1183, 0.1261, 0.1339, 0.1419, | |
1142 | 0.1499, 0.1576, 0.1648, 0.1715, 0.1782, 0.1849, 0.1917, 0.1984, | |
1143 | 0.2048, 0.2110, 0.2167, 0.2223, 0.2278, 0.2333, 0.2389, 0.2444, | |
1144 | 0.2497, 0.2548, 0.2598, 0.2645, 0.2691, 0.2735, 0.2780, 0.2824, | |
1145 | 0.2868, 0.2912, 0.2955, 0.2997, 0.3038, 0.3078, 0.3116, 0.3152, | |
1146 | 0.3188, 0.3224, 0.3259, 0.3294, 0.3329, 0.3364, 0.3398, 0.3432, | |
1147 | 0.3465, 0.3497, 0.3529, 0.3561, 0.3591, 0.3620, 0.3649, 0.3677, | |
1148 | 0.3705, 0.3733, 0.3761, 0.3788, 0.3816, 0.3843, 0.3869, 0.3896, | |
1149 | 0.3922, 0.3948, 0.3973, 0.3998, 0.4022, 0.4047, 0.4070, 0.4094, | |
1150 | 0.4117, 0.4139, 0.4162, 0.4184, 0.4206, 0.4227, 0.4249, 0.4270, | |
1151 | 0.4291, 0.4313, 0.4334, 0.4354, 0.4375, 0.4395, 0.4415, 0.4435, | |
1152 | 0.4455, 0.4474, 0.4493, 0.4512, 0.4531, 0.4550, 0.4568, 0.4586, | |
1153 | 0.4604, 0.4622, 0.4639, 0.4657, 0.4674, 0.4691, 0.4708, 0.4725, | |
1154 | 0.4742, 0.4758, 0.4773, 0.4788, 0.4803, 0.4819, 0.4836, 0.4852, | |
1155 | 0.4869, 0.4885, 0.4901, 0.4917, 0.4933, 0.4948, 0.4964, 0.4979 | |
1156 | }, | |
1157 | { | |
1158 | 0.0085, 0.0189, 0.0288, 0.0389, 0.0497, 0.0603, 0.0699, 0.0792, | |
1159 | 0.0887, 0.0985, 0.1082, 0.1170, 0.1253, 0.1336, 0.1421, 0.1505, | |
1160 | 0.1587, 0.1662, 0.1733, 0.1803, 0.1874, 0.1945, 0.2014, 0.2081, | |
1161 | 0.2143, 0.2201, 0.2259, 0.2316, 0.2374, 0.2431, 0.2487, 0.2541, | |
1162 | 0.2593, 0.2642, 0.2689, 0.2735, 0.2781, 0.2826, 0.2872, 0.2917, | |
1163 | 0.2961, 0.3003, 0.3045, 0.3086, 0.3125, 0.3162, 0.3198, 0.3235, | |
1164 | 0.3270, 0.3306, 0.3342, 0.3377, 0.3411, 0.3446, 0.3479, 0.3511, | |
1165 | 0.3543, 0.3575, 0.3605, 0.3634, 0.3663, 0.3691, 0.3720, 0.3748, | |
1166 | 0.3775, 0.3803, 0.3830, 0.3857, 0.3884, 0.3911, 0.3937, 0.3962, | |
1167 | 0.3987, 0.4012, 0.4036, 0.4060, 0.4084, 0.4107, 0.4129, 0.4152, | |
1168 | 0.4174, 0.4196, 0.4218, 0.4239, 0.4261, 0.4282, 0.4303, 0.4324, | |
1169 | 0.4344, 0.4365, 0.4385, 0.4405, 0.4425, 0.4445, 0.4464, 0.4483, | |
1170 | 0.4502, 0.4521, 0.4539, 0.4558, 0.4576, 0.4593, 0.4611, 0.4629, | |
1171 | 0.4646, 0.4663, 0.4680, 0.4697, 0.4714, 0.4730, 0.4747, 0.4759, | |
1172 | 0.4769, 0.4780, 0.4790, 0.4800, 0.4811, 0.4827, 0.4843, 0.4859, | |
1173 | 0.4874, 0.4889, 0.4905, 0.4920, 0.4935, 0.4950, 0.4965, 0.4979 | |
1174 | } | |
1175 | }; | |
1176 | ||
1177 | if(!fgLUT) fgLUT = new Double_t[AliTRDgeometry::kNlayer*fgkNlut]; | |
1178 | ||
1179 | for (Int_t ilayer = 0; ilayer < AliTRDgeometry::kNlayer; ilayer++) { | |
1180 | for (Int_t ilut = 0; ilut < fgkNlut; ilut++ ) { | |
1181 | fgLUT[ilayer*fgkNlut+ilut] = lut[ilayer][ilut]; | |
1182 | } | |
1183 | } | |
1184 | } | |
1185 |