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6255180c | 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 | ||
d53fc881 | 16 | /* |
17 | $Log$ | |
c6ba3ff4 | 18 | Revision 1.8 2004/01/27 18:02:38 hristov |
19 | Removing some warning (Sun) | |
20 | ||
15a060e4 | 21 | Revision 1.7 2003/11/13 14:21:57 morsch |
22 | Coding Rule violation corrections. | |
23 | ||
041f7f97 | 24 | Revision 1.6 2003/08/12 15:16:25 morsch |
25 | Saver initialisation of fFitp array. (Lenaic COUEDEL) | |
26 | ||
1e68a0c5 | 27 | Revision 1.5 2003/08/05 16:14:20 morsch |
28 | Some problems with too big fluctuations corrected. (A. de Falco) | |
29 | ||
d53fc881 | 30 | Revision 1.2 2003/01/08 10:29:33 morsch |
31 | Path to data file changed. | |
32 | ||
33 | Revision 1.1 2003/01/06 10:13:33 morsch | |
34 | First commit. | |
35 | ||
36 | */ | |
6255180c | 37 | |
041f7f97 | 38 | //------------------------------------------------------------------------- |
39 | // Class AliMUONFastTracking | |
40 | // | |
41 | // Manager for the fast simulation of tracking in the muon spectrometer | |
42 | // This class reads the lookup tables containing the parameterization | |
43 | // of the deltap, deltatheta, deltaphi for different background levels | |
44 | // and provides the related smeared parameters. | |
45 | // Used by AliFastMuonTrackingEff, AliFastMuonTrackingAcc, | |
46 | // AliFastMuonTrackingRes. | |
47 | //------------------------------------------------------------------------- | |
48 | ||
6255180c | 49 | #include "AliMUONFastTracking.h" |
50 | #include "AliMUONFastTrackingEntry.h" | |
6255180c | 51 | #include <TSpline.h> |
52 | #include <TFile.h> | |
6255180c | 53 | #include <TH3.h> |
54 | #include <TF1.h> | |
55 | #include <TRandom.h> | |
56 | #include <stdlib.h> | |
57 | #include <stdio.h> | |
58 | #include <string.h> | |
59 | #include <Riostream.h> | |
60 | ||
61 | ClassImp(AliMUONFastTracking) | |
62 | ||
041f7f97 | 63 | |
6255180c | 64 | AliMUONFastTracking* AliMUONFastTracking::fgMUONFastTracking=NULL; |
65 | ||
66 | static Double_t FitP(Double_t *x, Double_t *par){ | |
67 | Double_t dx = x[0] - par[0]; | |
68 | Double_t dx2 = x[0] - par[4]; | |
69 | Double_t sigma = par[1] * ( 1 + par[2] * dx); | |
70 | if (sigma == 0) { | |
71 | ||
72 | return 0.; | |
73 | } | |
74 | Double_t fasymm = TMath::Exp(-0.5 * dx * dx / (sigma * sigma)); | |
75 | Double_t sigma2 = par[1] * par[5]; | |
76 | Double_t fgauss = TMath::Exp(-0.5 * dx2 * dx2 / (sigma2 * sigma2)); | |
d53fc881 | 77 | Double_t value = fasymm + par[3] * fgauss; |
78 | return value; | |
6255180c | 79 | } |
80 | ||
041f7f97 | 81 | AliMUONFastTracking::AliMUONFastTracking(const AliMUONFastTracking & ft):TObject() |
82 | { | |
83 | // Copy constructor | |
84 | ft.Copy(*this); | |
85 | } | |
86 | ||
87 | ||
6255180c | 88 | AliMUONFastTracking* AliMUONFastTracking::Instance() |
89 | { | |
90 | // Set random number generator | |
91 | if (fgMUONFastTracking) { | |
92 | return fgMUONFastTracking; | |
93 | } else { | |
94 | fgMUONFastTracking = new AliMUONFastTracking(); | |
95 | return fgMUONFastTracking; | |
96 | } | |
97 | } | |
98 | ||
99 | AliMUONFastTracking::AliMUONFastTracking() | |
100 | { | |
041f7f97 | 101 | // |
102 | // constructor | |
103 | // | |
1e68a0c5 | 104 | for (Int_t i = 0; i<20;i++) { |
105 | for (Int_t j = 0; j<20; j++) { | |
106 | for (Int_t k = 0; k<20; k++) { | |
107 | fFitp[i][j][k] = 0x0; | |
108 | } | |
109 | } | |
110 | } | |
111 | ||
d53fc881 | 112 | fClusterFinder = kOld; |
6255180c | 113 | fPrintLevel = 1; |
114 | // read binning; temporarily put by hand | |
115 | Float_t pmin = 0, pmax = 200; | |
116 | Int_t nbinp = 10; | |
117 | Float_t thetamin = 2, thetamax = 9; | |
118 | Int_t nbintheta=10; | |
119 | Float_t phimin = -180, phimax =180; | |
120 | Int_t nbinphi=10; | |
121 | //-------------------------------------- | |
122 | ||
123 | fNbinp = nbinp; | |
124 | fPmin = pmin; | |
125 | fPmax = pmax; | |
126 | ||
127 | fNbintheta = nbintheta; | |
128 | fThetamin = thetamin; | |
129 | fThetamax = thetamax; | |
130 | ||
131 | fNbinphi = nbinphi; | |
132 | fPhimin = phimin; | |
133 | fPhimax = phimax; | |
134 | ||
135 | fDeltaP = (fPmax-fPmin)/fNbinp; | |
136 | fDeltaTheta = (fThetamax-fThetamin)/fNbintheta; | |
137 | fDeltaPhi = (fPhimax-fPhimin)/fNbinphi; | |
138 | } | |
139 | ||
140 | void AliMUONFastTracking::Init(Float_t bkg) | |
141 | { | |
142 | // | |
143 | // Initialization | |
144 | // | |
145 | for (Int_t ip=0; ip< fNbinp; ip++){ | |
146 | for (Int_t itheta=0; itheta< fNbintheta; itheta++){ | |
147 | for (Int_t iphi=0; iphi< fNbinphi; iphi++){ | |
148 | fCurrentEntry[ip][itheta][iphi] = new AliMUONFastTrackingEntry; | |
149 | for (Int_t ibkg=0; ibkg<4; ibkg++){ | |
150 | fEntry[ip][itheta][iphi][ibkg] = new AliMUONFastTrackingEntry; | |
151 | } | |
152 | } | |
153 | } | |
154 | } | |
155 | ||
156 | char filename [100]; | |
d53fc881 | 157 | if (fClusterFinder==kOld) sprintf (filename,"$(ALICE_ROOT)/FASTSIM/data/MUONtrackLUT.root"); |
041f7f97 | 158 | else sprintf (filename,"$(ALICE_ROOT)/FASTSIM/data/MUONtrackLUT-AZ.root"); |
d53fc881 | 159 | |
6255180c | 160 | TFile *file = new TFile(filename); |
161 | ReadLUT(file); | |
162 | SetBackground(bkg); | |
d53fc881 | 163 | UseSpline(0); |
6255180c | 164 | } |
165 | ||
166 | ||
167 | void AliMUONFastTracking::ReadLUT(TFile* file) | |
168 | { | |
041f7f97 | 169 | // |
170 | // read the lookup tables from file | |
171 | // | |
6255180c | 172 | TH3F *heff[5][3], *hacc[5][3], *hmeanp, *hsigmap, *hsigma1p, *hchi2p; |
173 | TH3F *hnormg2, *hmeang2, *hsigmag2, *hmeantheta, *hsigmatheta, *hchi2theta; | |
174 | TH3F *hmeanphi, *hsigmaphi, *hchi2phi; | |
175 | char tag[40], tag2[40]; | |
176 | ||
d53fc881 | 177 | printf ("Reading parameters from LUT file %s...\n",file->GetName()); |
178 | ||
041f7f97 | 179 | const Float_t kBkg[4] = {0, 0.5, 1, 2}; |
6255180c | 180 | for (Int_t ibkg=0; ibkg<4; ibkg++) { |
041f7f97 | 181 | sprintf (tag,"BKG%g",kBkg[ibkg]); |
6255180c | 182 | file->cd(tag); |
183 | for (Int_t isplp = 0; isplp<kSplitP; isplp++) { | |
184 | for (Int_t ispltheta = 0; ispltheta<kSplitTheta; ispltheta++) { | |
185 | sprintf (tag2,"heff[%d][%d]",isplp,ispltheta); | |
186 | heff[isplp][ispltheta] = (TH3F*)gDirectory->Get(tag2); | |
187 | sprintf (tag2,"hacc[%d][%d]",isplp,ispltheta); | |
188 | hacc[isplp][ispltheta] = (TH3F*)gDirectory->Get(tag2); | |
189 | } | |
190 | } | |
191 | hmeanp = (TH3F*)gDirectory->Get("hmeanp"); | |
192 | hsigmap = (TH3F*)gDirectory->Get("hsigmap"); | |
193 | hsigma1p = (TH3F*)gDirectory->Get("hsigma1p"); | |
194 | hchi2p = (TH3F*)gDirectory->Get("hchi2p"); | |
195 | hnormg2 = (TH3F*)gDirectory->Get("hnormg2"); | |
196 | hmeang2 = (TH3F*)gDirectory->Get("hmeang2"); | |
197 | hsigmag2 = (TH3F*)gDirectory->Get("hsigmag2"); | |
198 | hmeantheta = (TH3F*)gDirectory->Get("hmeantheta"); | |
199 | hsigmatheta = (TH3F*)gDirectory->Get("hsigmatheta"); | |
200 | hchi2theta = (TH3F*)gDirectory->Get("hchi2theta"); | |
201 | hmeanphi = (TH3F*)gDirectory->Get("hmeanphi"); | |
202 | hsigmaphi = (TH3F*)gDirectory->Get("hsigmaphi"); | |
203 | hchi2phi = (TH3F*)gDirectory->Get("hchi2phi"); | |
204 | ||
6255180c | 205 | for (Int_t ip=0; ip<fNbinp ;ip++) { |
206 | for (Int_t itheta=0; itheta<fNbintheta ;itheta++) { | |
207 | for (Int_t iphi=0; iphi<fNbinphi ;iphi++) { | |
208 | Float_t p = fPmin + fDeltaP * (ip + 0.5); | |
209 | Float_t theta = fThetamin + fDeltaTheta * (itheta + 0.5); | |
210 | Float_t phi = fPhimin + fDeltaPhi * (iphi + 0.5); | |
211 | ||
212 | fEntry[ip][itheta][iphi][ibkg]->fP = p; | |
213 | fEntry[ip][itheta][iphi][ibkg]->fMeanp = | |
214 | hmeanp->GetBinContent(ip+1,itheta+1,iphi+1); | |
215 | fEntry[ip][itheta][iphi][ibkg]->fSigmap = | |
216 | TMath::Abs(hsigmap->GetBinContent(ip+1,itheta+1,iphi+1)); | |
217 | fEntry[ip][itheta][iphi][ibkg]->fSigma1p = | |
218 | hsigma1p->GetBinContent(ip+1,itheta+1,iphi+1); | |
219 | fEntry[ip][itheta][iphi][ibkg]->fChi2p = | |
220 | hchi2p->GetBinContent(ip+1,itheta+1,iphi+1); | |
221 | fEntry[ip][itheta][iphi][ibkg]->fNormG2 = | |
222 | hnormg2->GetBinContent(ip+1,itheta+1,iphi+1); | |
223 | fEntry[ip][itheta][iphi][ibkg]->fMeanG2 = | |
224 | hmeang2->GetBinContent(ip+1,itheta+1,iphi+1); | |
225 | if (ibkg == 0) fEntry[ip][itheta][iphi][ibkg]->fSigmaG2 = 9999; | |
226 | else fEntry[ip][itheta][iphi][ibkg]->fSigmaG2 = | |
227 | hsigmag2->GetBinContent(ip+1,itheta+1,iphi+1); | |
228 | fEntry[ip][itheta][iphi][ibkg]->fTheta = theta; | |
229 | fEntry[ip][itheta][iphi][ibkg]->fMeantheta = | |
230 | hmeantheta->GetBinContent(ip+1,itheta+1,iphi+1); | |
231 | fEntry[ip][itheta][iphi][ibkg]->fSigmatheta = | |
232 | TMath::Abs(hsigmatheta->GetBinContent(ip+1,itheta+1,iphi+1)); | |
233 | fEntry[ip][itheta][iphi][ibkg]->fChi2theta = | |
234 | hchi2theta->GetBinContent(ip+1,itheta+1,iphi+1); | |
235 | fEntry[ip][itheta][iphi][ibkg]->fPhi = phi; | |
236 | fEntry[ip][itheta][iphi][ibkg]->fMeanphi = | |
237 | hmeanphi->GetBinContent(ip+1,itheta+1,iphi+1); | |
238 | fEntry[ip][itheta][iphi][ibkg]->fSigmaphi = | |
239 | TMath::Abs(hsigmaphi->GetBinContent(ip+1,itheta+1,iphi+1)); | |
240 | fEntry[ip][itheta][iphi][ibkg]->fChi2phi = | |
241 | hchi2phi->GetBinContent(ip+1,itheta+1,iphi+1); | |
242 | for (Int_t i=0; i<kSplitP; i++) { | |
243 | for (Int_t j=0; j<kSplitTheta; j++) { | |
244 | fEntry[ip][itheta][iphi][ibkg]->fAcc[i][j] = | |
245 | hacc[i][j]->GetBinContent(ip+1,itheta+1,iphi+1); | |
246 | fEntry[ip][itheta][iphi][ibkg]->fEff[i][j] = | |
247 | heff[i][j]->GetBinContent(ip+1,itheta+1,iphi+1); | |
248 | } | |
249 | } | |
250 | } // iphi | |
251 | } // itheta | |
252 | } // ip | |
253 | } // ibkg | |
254 | ||
255 | TGraph *graph = new TGraph(3); | |
256 | TF1 *f = new TF1("f","[0]+[1]*x"); | |
257 | ||
258 | for (Int_t ip=0; ip< fNbinp; ip++){ | |
259 | for (Int_t itheta=0; itheta< fNbintheta; itheta++){ | |
260 | for (Int_t iphi=0; iphi< fNbinphi; iphi++){ | |
261 | graph->SetPoint(0,0.5,fEntry[ip][itheta][iphi][1]->fSigmaG2); | |
262 | graph->SetPoint(1,1,fEntry[ip][itheta][iphi][2]->fSigmaG2); | |
263 | graph->SetPoint(2,2,fEntry[ip][itheta][iphi][3]->fSigmaG2); | |
264 | graph->Fit("f","q"); | |
265 | fEntry[ip][itheta][iphi][0]->fSigmaG2 = f->Eval(0); | |
266 | } | |
267 | } | |
268 | } | |
269 | f->Delete(); | |
270 | graph->Delete(); | |
271 | printf ("parameters read. \n"); | |
272 | } | |
273 | ||
274 | void AliMUONFastTracking::GetBinning(Int_t &nbinp, Float_t &pmin, Float_t &pmax, | |
275 | Int_t &nbintheta, Float_t &thetamin, | |
276 | Float_t &thetamax, | |
041f7f97 | 277 | Int_t &nbinphi, Float_t &phimin, Float_t &phimax) const |
6255180c | 278 | { |
041f7f97 | 279 | // |
280 | // gets the binning for the discrete parametrizations in the lookup table | |
281 | // | |
6255180c | 282 | nbinp = fNbinp; |
283 | pmin = fPmin; | |
284 | pmax = fPmax; | |
285 | nbintheta = fNbintheta; | |
286 | thetamin = fThetamin; | |
287 | thetamax = fThetamax; | |
288 | nbinphi = fNbinphi; | |
289 | phimin = fPhimin; | |
290 | phimax = fPhimax; | |
291 | } | |
292 | ||
293 | ||
294 | void AliMUONFastTracking::GetIpIthetaIphi(Float_t p, Float_t theta, Float_t phi, | |
295 | Int_t charge, Int_t &ip, Int_t &itheta, | |
041f7f97 | 296 | Int_t &iphi) const |
6255180c | 297 | { |
041f7f97 | 298 | // |
299 | // gets the id of the cells in the LUT for a given (p,theta,phi, charge) | |
300 | // | |
6255180c | 301 | if (charge < 0) phi = -phi; |
302 | ip = Int_t (( p - fPmin ) / fDeltaP); | |
303 | itheta = Int_t (( theta - fThetamin ) / fDeltaTheta); | |
304 | iphi = Int_t (( phi - fPhimin ) / fDeltaPhi); | |
305 | ||
1e68a0c5 | 306 | |
d53fc881 | 307 | if (ip< 0) ip = 0; |
308 | if (ip>= fNbinp) ip = fNbinp-1; | |
309 | if (itheta< 0) itheta = 0; | |
310 | if (itheta>= fNbintheta) itheta = fNbintheta-1; | |
6255180c | 311 | |
d53fc881 | 312 | if (iphi< 0) iphi = 0; |
313 | if (iphi>= fNbinphi) iphi = fNbinphi-1; | |
6255180c | 314 | } |
315 | ||
316 | void AliMUONFastTracking::GetSplit(Int_t ip, Int_t itheta, | |
041f7f97 | 317 | Int_t &nSplitP, Int_t &nSplitTheta) const |
318 | { | |
319 | // | |
320 | // the first cell is splitted in more bins for theta and momentum | |
321 | // parameterizations. Get the number of divisions for the splitted bins | |
322 | // | |
6255180c | 323 | if (ip==0) nSplitP = 5; |
324 | else nSplitP = 2; | |
325 | if (itheta==0) nSplitTheta = 3; | |
326 | else nSplitTheta = 1; | |
327 | } | |
328 | ||
329 | Float_t AliMUONFastTracking::Efficiency(Float_t p, Float_t theta, | |
330 | Float_t phi, Int_t charge){ | |
041f7f97 | 331 | // |
332 | // gets the tracking efficiency | |
333 | // | |
6255180c | 334 | Int_t ip=0, itheta=0, iphi=0; |
335 | GetIpIthetaIphi(p,theta,phi,charge,ip,itheta,iphi); | |
336 | Int_t nSplitP, nSplitTheta; | |
337 | GetSplit(ip,itheta,nSplitP,nSplitTheta); | |
338 | ||
339 | Float_t dp = p - fPmin; | |
340 | Int_t ibinp = Int_t(nSplitP*(dp - fDeltaP * Int_t(dp / fDeltaP))/fDeltaP); | |
341 | Float_t dtheta = theta - fThetamin; | |
342 | Int_t ibintheta = Int_t(nSplitTheta*(dtheta - fDeltaTheta * Int_t(dtheta / fDeltaTheta))/fDeltaTheta); | |
343 | Float_t eff = fCurrentEntry[ip][itheta][iphi]->fEff[ibinp][ibintheta]; | |
344 | return eff; | |
345 | } | |
346 | ||
347 | Float_t AliMUONFastTracking::Acceptance(Float_t p, Float_t theta, | |
348 | Float_t phi, Int_t charge){ | |
041f7f97 | 349 | // |
350 | // gets the geometrical acceptance | |
351 | // | |
6255180c | 352 | if (theta<fThetamin || theta>fThetamax) return 0; |
353 | ||
354 | Int_t ip=0, itheta=0, iphi=0; | |
355 | GetIpIthetaIphi(p,theta,phi,charge,ip,itheta,iphi); | |
356 | Int_t nSplitP, nSplitTheta; | |
357 | GetSplit(ip,itheta,nSplitP,nSplitTheta); | |
358 | // central value and corrections with spline | |
359 | ||
360 | Float_t dp = p - fPmin; | |
361 | Int_t ibinp = Int_t(nSplitP*(dp - fDeltaP * Int_t(dp / fDeltaP))/fDeltaP); | |
362 | Float_t dtheta = theta - fThetamin; | |
363 | Int_t ibintheta = Int_t(nSplitTheta*(dtheta - fDeltaTheta * Int_t(dtheta / fDeltaTheta))/fDeltaTheta); | |
364 | Float_t acc = fCurrentEntry[ip][itheta][iphi]->fAcc[ibinp][ibintheta]; | |
365 | return acc; | |
366 | } | |
367 | ||
368 | Float_t AliMUONFastTracking::MeanP(Float_t p, Float_t theta, | |
041f7f97 | 369 | Float_t phi, Int_t charge) const |
6255180c | 370 | { |
041f7f97 | 371 | // |
372 | // gets the mean value of the prec-pgen distribution | |
373 | // | |
6255180c | 374 | Int_t ip=0, itheta=0, iphi=0; |
375 | GetIpIthetaIphi(p,theta,phi,charge,ip,itheta,iphi); | |
376 | return fCurrentEntry[ip][itheta][iphi]->fMeanp; | |
377 | } | |
378 | ||
379 | Float_t AliMUONFastTracking::SigmaP(Float_t p, Float_t theta, | |
041f7f97 | 380 | Float_t phi, Int_t charge) const |
6255180c | 381 | { |
041f7f97 | 382 | // |
383 | // gets the width of the prec-pgen distribution | |
384 | // | |
6255180c | 385 | Int_t ip=0, itheta=0, iphi=0; |
386 | Int_t index; | |
387 | GetIpIthetaIphi(p,theta,phi,charge,ip,itheta,iphi); | |
388 | // central value and corrections with spline | |
389 | Float_t sigmap = fCurrentEntry[ip][itheta][iphi]->fSigmap; | |
390 | if (!fSpline) return sigmap; | |
391 | // corrections vs p, theta, phi | |
392 | index = iphi + fNbinphi * itheta; | |
393 | Double_t xmin,ymin,xmax,ymax; | |
394 | Float_t frac1 = fSplineSigmap[index][0]->Eval(p)/sigmap; | |
395 | ||
396 | if (p>fPmax-fDeltaP/2.) { | |
397 | Float_t s1 = fCurrentEntry[fNbinp-1][itheta][iphi]->fSigmap; | |
398 | Float_t s2 = fCurrentEntry[fNbinp-2][itheta][iphi]->fSigmap; | |
399 | Float_t s3 = fCurrentEntry[fNbinp-3][itheta][iphi]->fSigmap; | |
400 | Float_t p1 = fDeltaP * (fNbinp - 1 + 0.5) + fPmin; | |
401 | Float_t p2 = fDeltaP * (fNbinp - 2 + 0.5) + fPmin; | |
402 | Float_t p3 = fDeltaP * (fNbinp - 3 + 0.5) + fPmin; | |
403 | Float_t p12 = p1 * p1, p22 = p2 * p2, p32 = p3 * p3; | |
404 | Float_t d = p12*p2 + p1*p32 + p22*p3 - p32*p2 - p3*p12 - p22*p1; | |
405 | Float_t a = (s1*p2 + p1*s3 + s2*p3 - s3*p2 - p3*s1 - s2*p1) / d; | |
406 | Float_t b = (p12*s2 + s1*p32 + p22*s3 - p32*s2 - s3*p12 - p22*s1)/d; | |
407 | Float_t c = (p12*p2*s3 + p1*p32*s2 + p22*p3*s1 | |
408 | - p32*p2*s1 - p3*p12*s2 - p22*p1*s3) / d; | |
409 | Float_t sigma = a * p * p + b * p + c; | |
410 | frac1 = sigma/sigmap; | |
411 | } | |
412 | index = iphi + fNbinphi * ip; | |
413 | fSplineEff[index][1]->GetKnot(0,xmin,ymin); | |
414 | fSplineEff[index][1]->GetKnot(9,xmax,ymax); | |
415 | if (theta>xmax) theta = xmax; | |
416 | Float_t frac2 = fSplineSigmap[index][1]->Eval(theta)/sigmap; | |
417 | index = itheta + fNbintheta * ip; | |
418 | fSplineEff[index][2]->GetKnot(0,xmin,ymin); | |
419 | fSplineEff[index][2]->GetKnot(9,xmax,ymax); | |
420 | if (phi>xmax) phi = xmax; | |
421 | Float_t frac3 = fSplineSigmap[index][2]->Eval(phi)/sigmap; | |
422 | Float_t sigmatot = sigmap * frac1 * frac2 * frac3; | |
423 | if (sigmatot<0) sigmatot = sigmap; | |
424 | return sigmatot; | |
425 | } | |
426 | ||
427 | Float_t AliMUONFastTracking::Sigma1P(Float_t p, Float_t theta, | |
041f7f97 | 428 | Float_t phi, Int_t charge) const |
6255180c | 429 | { |
041f7f97 | 430 | // |
431 | // gets the width correction of the prec-pgen distribution (see FitP) | |
432 | // | |
6255180c | 433 | Int_t ip=0, itheta=0, iphi=0; |
434 | GetIpIthetaIphi(p,theta,phi,charge,ip,itheta,iphi); | |
435 | if (p>fPmax) { | |
436 | // linear extrapolation of sigmap for p out of range | |
437 | Float_t s1 = fCurrentEntry[fNbinp-1][itheta][iphi]->fSigma1p; | |
438 | Float_t s2 = fCurrentEntry[fNbinp-2][itheta][iphi]->fSigma1p; | |
439 | Float_t p1 = fDeltaP * (fNbinp - 1 + 0.5) + fPmin; | |
440 | Float_t p2 = fDeltaP * (fNbinp - 2 + 0.5) + fPmin; | |
441 | Float_t sigma = 1./(p1-p2) * ( (s1-s2)*p + (s2-s1)*p1 + s1*(p1-p2) ); | |
442 | return sigma; | |
443 | } | |
444 | else return fCurrentEntry[ip][itheta][iphi]->fSigma1p; | |
445 | } | |
446 | ||
447 | Float_t AliMUONFastTracking::NormG2(Float_t p, Float_t theta, | |
041f7f97 | 448 | Float_t phi, Int_t charge) const |
6255180c | 449 | { |
041f7f97 | 450 | // |
451 | // gets the relative normalization of the background | |
452 | // (gaussian) component in the prec-pgen distribution | |
453 | // | |
6255180c | 454 | Int_t ip=0, itheta=0, iphi=0; |
455 | GetIpIthetaIphi(p,theta,phi,charge,ip,itheta,iphi); | |
456 | if (p>fPmax) { | |
457 | // linear extrapolation of sigmap for p out of range | |
458 | Float_t s1 = fCurrentEntry[fNbinp-1][itheta][iphi]->fNormG2; | |
459 | Float_t s2 = fCurrentEntry[fNbinp-2][itheta][iphi]->fNormG2; | |
460 | Float_t p1 = fDeltaP * (fNbinp - 1 + 0.5) + fPmin; | |
461 | Float_t p2 = fDeltaP * (fNbinp - 2 + 0.5) + fPmin; | |
462 | Float_t norm = 1./(p1-p2) * ( (s1-s2)*p + (s2-s1)*p1 + s1*(p1-p2) ); | |
463 | return norm; | |
464 | } | |
465 | else return fCurrentEntry[ip][itheta][iphi]->fNormG2; | |
466 | } | |
467 | ||
468 | Float_t AliMUONFastTracking::MeanG2(Float_t p, Float_t theta, | |
041f7f97 | 469 | Float_t phi, Int_t charge) const |
6255180c | 470 | { |
041f7f97 | 471 | // |
472 | // gets the mean value of the background | |
473 | // (gaussian) component in the prec-pgen distribution | |
474 | // | |
6255180c | 475 | Int_t ip=0, itheta=0, iphi=0; |
476 | GetIpIthetaIphi(p,theta,phi,charge,ip,itheta,iphi); | |
477 | if (p>fPmax) { | |
478 | // linear extrapolation of sigmap for p out of range | |
479 | Float_t s1 = fCurrentEntry[fNbinp-1][itheta][iphi]->fMeanG2; | |
480 | Float_t s2 = fCurrentEntry[fNbinp-2][itheta][iphi]->fMeanG2; | |
481 | Float_t p1 = fDeltaP * (fNbinp - 1 + 0.5) + fPmin; | |
482 | Float_t p2 = fDeltaP * (fNbinp - 2 + 0.5) + fPmin; | |
483 | Float_t norm = 1./(p1-p2) * ( (s1-s2)*p + (s2-s1)*p1 + s1*(p1-p2) ); | |
484 | return norm; | |
485 | } | |
486 | else return fCurrentEntry[ip][itheta][iphi]->fMeanG2; | |
487 | } | |
488 | ||
489 | Float_t AliMUONFastTracking::SigmaG2(Float_t p, Float_t theta, | |
041f7f97 | 490 | Float_t phi, Int_t charge) const |
6255180c | 491 | { |
041f7f97 | 492 | // |
493 | // gets the width of the background | |
494 | // (gaussian) component in the prec-pgen distribution | |
495 | // | |
6255180c | 496 | Int_t ip=0, itheta=0, iphi=0; |
497 | GetIpIthetaIphi(p,theta,phi,charge,ip,itheta,iphi); | |
498 | if (p>fPmax) { | |
499 | // linear extrapolation of sigmap for p out of range | |
500 | Float_t s1 = fCurrentEntry[fNbinp-1][itheta][iphi]->fSigmaG2; | |
501 | Float_t s2 = fCurrentEntry[fNbinp-2][itheta][iphi]->fSigmaG2; | |
502 | Float_t p1 = fDeltaP * (fNbinp - 1 + 0.5) + fPmin; | |
503 | Float_t p2 = fDeltaP * (fNbinp - 2 + 0.5) + fPmin; | |
504 | Float_t sigma = 1./(p1-p2) * ( (s1-s2)*p + (s2-s1)*p1 + s1*(p1-p2) ); | |
505 | return sigma; | |
506 | } | |
507 | else return fCurrentEntry[ip][itheta][iphi]->fSigmaG2; | |
508 | } | |
509 | ||
510 | ||
511 | Float_t AliMUONFastTracking::MeanTheta(Float_t p, Float_t theta, | |
041f7f97 | 512 | Float_t phi, Int_t charge) const |
6255180c | 513 | { |
041f7f97 | 514 | // |
515 | // gets the mean value of the thetarec-thetagen distribution | |
516 | // | |
6255180c | 517 | Int_t ip=0, itheta=0, iphi=0; |
518 | GetIpIthetaIphi(p,theta,phi,charge,ip,itheta,iphi); | |
519 | return fCurrentEntry[ip][itheta][iphi]->fMeantheta; | |
520 | } | |
521 | ||
041f7f97 | 522 | Float_t AliMUONFastTracking::SigmaTheta(Float_t p, Float_t theta, |
523 | Float_t phi, Int_t charge) const | |
524 | { | |
525 | // | |
526 | // gets the width of the thetarec-thetagen distribution | |
527 | // | |
6255180c | 528 | Int_t ip=0, itheta=0, iphi=0; |
529 | Int_t index; | |
530 | GetIpIthetaIphi(p,theta,phi,charge,ip,itheta,iphi); | |
531 | // central value and corrections with spline | |
532 | Float_t sigmatheta = fCurrentEntry[ip][itheta][iphi]->fSigmatheta; | |
533 | if (!fSpline) return sigmatheta; | |
534 | // corrections vs p, theta, phi | |
535 | index = iphi + fNbinphi * itheta; | |
536 | Double_t xmin,ymin,xmax,ymax; | |
537 | Float_t frac1 = fSplineSigmatheta[index][0]->Eval(p)/sigmatheta; | |
538 | if (p>fPmax-fDeltaP/2.) { | |
539 | // linear extrapolation of sigmap for p out of range | |
540 | Float_t s1 = fCurrentEntry[fNbinp-1][itheta][iphi]->fSigmatheta; | |
541 | Float_t s2 = fCurrentEntry[fNbinp-2][itheta][iphi]->fSigmatheta; | |
542 | Float_t p1 = fDeltaP * (fNbinp - 1 + 0.5) + fPmin; | |
543 | Float_t p2 = fDeltaP * (fNbinp - 2 + 0.5) + fPmin; | |
544 | Float_t sigma = 1./(p1-p2) * ( (s1-s2)*p + (s2-s1)*p1 + s1*(p1-p2) ); | |
545 | frac1=sigma/sigmatheta; | |
546 | } | |
547 | index = iphi + fNbinphi * ip; | |
548 | fSplineEff[index][1]->GetKnot(0,xmin,ymin); | |
549 | fSplineEff[index][1]->GetKnot(9,xmax,ymax); | |
550 | if (theta>xmax) theta = xmax; | |
551 | Float_t frac2 = fSplineSigmatheta[index][1]->Eval(theta)/sigmatheta; | |
552 | index = itheta + fNbintheta * ip; | |
553 | fSplineEff[index][2]->GetKnot(0,xmin,ymin); | |
554 | fSplineEff[index][2]->GetKnot(9,xmax,ymax); | |
555 | if (phi>xmax) phi = xmax; | |
556 | Float_t frac3 = fSplineSigmatheta[index][2]->Eval(phi)/sigmatheta; | |
557 | return sigmatheta * frac1 * frac2 * frac3; | |
558 | } | |
559 | ||
560 | ||
561 | Float_t AliMUONFastTracking::MeanPhi(Float_t p, Float_t theta, | |
041f7f97 | 562 | Float_t phi, Int_t charge) const |
563 | { | |
564 | // | |
565 | // gets the mean value of the phirec-phigen distribution | |
566 | // | |
6255180c | 567 | Int_t ip=0, itheta=0, iphi=0; |
568 | GetIpIthetaIphi(p,theta,phi,charge,ip,itheta,iphi); | |
569 | return fCurrentEntry[ip][itheta][iphi]->fMeanphi; | |
570 | } | |
571 | ||
572 | Float_t AliMUONFastTracking::SigmaPhi(Float_t p, Float_t theta, | |
573 | Float_t phi, Int_t charge){ | |
041f7f97 | 574 | // |
575 | // gets the width of the phirec-phigen distribution | |
576 | // | |
6255180c | 577 | Int_t ip=0, itheta=0, iphi=0; |
578 | Int_t index; | |
579 | GetIpIthetaIphi(p,theta,phi,charge,ip,itheta,iphi); | |
580 | // central value and corrections with spline | |
581 | Float_t sigmaphi = fCurrentEntry[ip][itheta][iphi]->fSigmaphi; | |
582 | if (!fSpline) return sigmaphi; | |
583 | // corrections vs p, theta, phi | |
584 | index = iphi + fNbinphi * itheta; | |
585 | Float_t frac1 = fSplineSigmaphi[index][0]->Eval(p)/sigmaphi; | |
586 | Double_t xmin,ymin,xmax,ymax; | |
587 | if (p>fPmax-fDeltaP/2.) { | |
588 | Float_t s1 = fCurrentEntry[fNbinp-1][itheta][iphi]->fSigmaphi; | |
589 | Float_t s2 = fCurrentEntry[fNbinp-2][itheta][iphi]->fSigmaphi; | |
590 | Float_t p1 = fDeltaP * (fNbinp - 1 + 0.5) + fPmin; | |
591 | Float_t p2 = fDeltaP * (fNbinp - 2 + 0.5) + fPmin; | |
592 | Float_t sigma = 1./(p1-p2) * ( (s1-s2)*p + (s2-s1)*p1 + s1*(p1-p2) ); | |
593 | frac1 = sigma/sigmaphi; | |
594 | } | |
595 | ||
596 | index = iphi + fNbinphi * ip; | |
597 | fSplineEff[index][1]->GetKnot(0,xmin,ymin); | |
598 | fSplineEff[index][1]->GetKnot(9,xmax,ymax); | |
599 | if (theta>xmax) theta = xmax; | |
600 | Float_t frac2 = fSplineSigmaphi[index][1]->Eval(theta)/sigmaphi; | |
601 | index = itheta + fNbintheta * ip; | |
602 | fSplineEff[index][2]->GetKnot(0,xmin,ymin); | |
603 | fSplineEff[index][2]->GetKnot(9,xmax,ymax); | |
604 | if (phi>xmax) phi = xmax; | |
605 | Float_t frac3 = fSplineSigmaphi[index][2]->Eval(phi)/sigmaphi; | |
606 | return sigmaphi * frac1 * frac2 * frac3; | |
607 | } | |
608 | ||
609 | void AliMUONFastTracking::SetSpline(){ | |
041f7f97 | 610 | // |
611 | // sets the spline functions for a smooth behaviour of the parameters | |
612 | // when going from one cell to another | |
613 | // | |
6255180c | 614 | printf ("Setting spline functions..."); |
615 | char splname[40]; | |
616 | Double_t x[20][3]; | |
617 | Double_t x2[50][3]; | |
618 | Int_t nbins[3] = {fNbinp, fNbintheta, fNbinphi}; | |
619 | Double_t xspl[20],yeff[50],ysigmap[20],ysigma1p[20]; | |
620 | Double_t yacc[50], ysigmatheta[20],ysigmaphi[20]; | |
621 | Double_t xsp2[50]; | |
622 | // let's calculate the x axis for p, theta, phi | |
623 | ||
624 | Int_t i, ispline, ivar; | |
625 | for (i=0; i< fNbinp; i++) x[i][0] = fPmin + fDeltaP * (i + 0.5); | |
626 | for (i=0; i< fNbintheta; i++) x[i][1] = fThetamin + fDeltaTheta * (i + 0.5); | |
627 | for (i=0; i< fNbinphi; i++) x[i][2] = fPhimin + fDeltaPhi * (i + 0.5); | |
628 | ||
629 | for (i=0; i< 5 * fNbinp; i++) x2[i][0] = fPmin + fDeltaP * (i + 0.5)/5.; | |
630 | for (i=0; i< 5 * fNbintheta; i++) x2[i][1] = fThetamin + fDeltaTheta * (i + 0.5)/5.; | |
631 | for (i=0; i< 5 * fNbinphi; i++) x2[i][2] = fPhimin + fDeltaPhi * (i + 0.5)/5.; | |
632 | ||
633 | // splines in p | |
634 | ivar = 0; | |
635 | for (i=0; i<nbins[ivar]; i++) xspl[i] = x[i][ivar]; | |
636 | for (i=0; i<5 * nbins[ivar]; i++) xsp2[i] = x2[i][ivar]; | |
637 | ispline=0; | |
638 | for (Int_t itheta=0; itheta< fNbintheta; itheta++){ | |
639 | for (Int_t iphi=0; iphi< fNbinphi; iphi++){ | |
640 | for (Int_t ip=0; ip<fNbinp; ip++) { | |
641 | // for (Int_t i=0; i<5; i++) { | |
642 | // yeff[5 * ip + i] = fCurrentEntry[ip][itheta][iphi]->fEff[i]; | |
643 | // yacc[5 * ip + i] = fCurrentEntry[ip][itheta][iphi]->fAcc[i]; | |
644 | // } | |
645 | ysigmap[ip] = fCurrentEntry[ip][itheta][iphi]->fSigmap; | |
646 | ysigma1p[ip] = fCurrentEntry[ip][itheta][iphi]->fSigma1p; | |
647 | ysigmatheta[ip] = fCurrentEntry[ip][itheta][iphi]->fSigmatheta; | |
648 | ysigmaphi[ip] = fCurrentEntry[ip][itheta][iphi]->fSigmaphi; | |
649 | } | |
650 | if (fPrintLevel>3) cout << " creating new spline " << splname << endl; | |
651 | sprintf (splname,"fSplineEff[%d][%d]",ispline,ivar); | |
652 | fSplineEff[ispline][ivar] = new TSpline3(splname,xsp2,yeff,5 * nbins[ivar]); | |
653 | sprintf (splname,"fSplineAcc[%d][%d]",ispline,ivar); | |
654 | fSplineAcc[ispline][ivar] = new TSpline3(splname,xsp2,yacc,5 * nbins[ivar]); | |
655 | sprintf (splname,"fSplineSigmap[%d][%d]",ispline,ivar); | |
656 | fSplineSigmap[ispline][ivar] = new TSpline3(splname,xspl,ysigmap,nbins[ivar]); | |
657 | sprintf (splname,"fSplineSigma1p[%d][%d]",ispline,ivar); | |
658 | fSplineSigma1p[ispline][ivar] = new TSpline3(splname,xspl,ysigma1p,nbins[ivar]); | |
659 | sprintf (splname,"fSplineSigmatheta[%d][%d]",ispline,ivar); | |
660 | fSplineSigmatheta[ispline][ivar] = new TSpline3(splname,xspl,ysigmatheta,nbins[ivar]); | |
661 | sprintf (splname,"fSplineSigmaphi[%d][%d]",ispline,ivar); | |
662 | fSplineSigmaphi[ispline][ivar] = new TSpline3(splname,xspl,ysigmaphi,nbins[ivar]); | |
663 | ispline++; | |
664 | } | |
665 | } | |
666 | ||
667 | ivar = 1; | |
668 | for (i=0; i<nbins[ivar]; i++) xspl[i] = x[i][ivar]; | |
669 | ispline=0; | |
670 | for (Int_t ip=0; ip<fNbinp; ip++) { | |
671 | for (Int_t iphi=0; iphi< fNbinphi; iphi++){ | |
672 | for (Int_t itheta=0; itheta< fNbintheta; itheta++){ | |
673 | // for efficiency and acceptance let's take the central value | |
674 | // yeff[itheta] = fCurrentEntry[ip][itheta][iphi]->fEff[2]; | |
675 | // yacc[itheta] = fCurrentEntry[ip][itheta][iphi]->fAcc[2]; | |
676 | ysigmap[itheta] = fCurrentEntry[ip][itheta][iphi]->fSigmap; | |
677 | ysigma1p[itheta] = fCurrentEntry[ip][itheta][iphi]->fSigma1p; | |
678 | ysigmatheta[itheta] = fCurrentEntry[ip][itheta][iphi]->fSigmatheta; | |
679 | ysigmaphi[itheta] = fCurrentEntry[ip][itheta][iphi]->fSigmaphi; | |
680 | } | |
681 | if (fPrintLevel>3) cout << " creating new spline " << splname << endl; | |
682 | sprintf (splname,"fSplineEff[%d][%d]",ispline,ivar); | |
683 | fSplineEff[ispline][ivar] = new TSpline3(splname,xspl,yeff, nbins[ivar]); | |
684 | sprintf (splname,"fSplineAcc[%d][%d]",ispline,ivar); | |
685 | fSplineAcc[ispline][ivar] = new TSpline3(splname,xspl,yacc, nbins[ivar]); | |
686 | sprintf (splname,"fSplineSigmap[%d][%d]",ispline,ivar); | |
687 | fSplineSigmap[ispline][ivar] = new TSpline3(splname,xspl,ysigmap,nbins[ivar]); | |
688 | sprintf (splname,"fSplineSigma1p[%d][%d]",ispline,ivar); | |
689 | fSplineSigma1p[ispline][ivar] = new TSpline3(splname,xspl,ysigma1p,nbins[ivar]); | |
690 | sprintf (splname,"fSplineSigmatheta[%d][%d]",ispline,ivar); | |
691 | fSplineSigmatheta[ispline][ivar] = new TSpline3(splname,xspl,ysigmatheta,nbins[ivar]); | |
692 | sprintf (splname,"fSplineSigmaphi[%d][%d]",ispline,ivar); | |
693 | fSplineSigmaphi[ispline][ivar] = new TSpline3(splname,xspl,ysigmaphi,nbins[ivar]); | |
694 | ispline++; | |
695 | } | |
696 | } | |
697 | ||
698 | ivar = 2; | |
699 | for (i=0; i<nbins[ivar]; i++) xspl[i] = x[i][ivar]; | |
700 | ispline=0; | |
701 | for (Int_t ip=0; ip<fNbinp; ip++) { | |
702 | for (Int_t itheta=0; itheta< fNbintheta; itheta++){ | |
703 | for (Int_t iphi=0; iphi< fNbinphi; iphi++){ | |
704 | // for efficiency and acceptance let's take the central value | |
705 | // yeff[iphi] = fCurrentEntry[ip][itheta][iphi]->fEff[2]; | |
706 | // yacc[iphi] = fCurrentEntry[ip][itheta][iphi]->fAcc[2]; | |
707 | ysigmap[iphi] = fCurrentEntry[ip][itheta][iphi]->fSigmap; | |
708 | ysigma1p[iphi] = fCurrentEntry[ip][itheta][iphi]->fSigma1p; | |
709 | ysigmatheta[iphi] = fCurrentEntry[ip][itheta][iphi]->fSigmatheta; | |
710 | ysigmaphi[iphi] = fCurrentEntry[ip][itheta][iphi]->fSigmaphi; | |
711 | } | |
712 | if (fPrintLevel>3) cout << " creating new spline " << splname << endl; | |
713 | sprintf (splname,"fSplineEff[%d][%d]",ispline,ivar); | |
714 | fSplineEff[ispline][ivar] = new TSpline3(splname,xspl,yeff, nbins[ivar]); | |
715 | sprintf (splname,"fSplineAcc[%d][%d]",ispline,ivar); | |
716 | fSplineAcc[ispline][ivar] = new TSpline3(splname,xspl,yacc, nbins[ivar]); | |
717 | sprintf (splname,"fSplineSigmap[%d][%d]",ispline,ivar); | |
718 | fSplineSigmap[ispline][ivar] = new TSpline3(splname,xspl,ysigmap,nbins[ivar]); | |
719 | sprintf (splname,"fSplineSigma1p[%d][%d]",ispline,ivar); | |
720 | fSplineSigma1p[ispline][ivar] = new TSpline3(splname,xspl,ysigma1p,nbins[ivar]); | |
721 | sprintf (splname,"fSplineSigmatheta[%d][%d]",ispline,ivar); | |
722 | fSplineSigmatheta[ispline][ivar] = new TSpline3(splname,xspl,ysigmatheta,nbins[ivar]); | |
723 | sprintf (splname,"fSplineSigmaphi[%d][%d]",ispline,ivar); | |
724 | fSplineSigmaphi[ispline][ivar] = new TSpline3(splname,xspl,ysigmaphi,nbins[ivar]); | |
725 | ispline++; | |
726 | } | |
727 | } | |
728 | printf ("...done\n"); | |
729 | } | |
730 | ||
6255180c | 731 | void AliMUONFastTracking::SetBackground(Float_t bkg){ |
041f7f97 | 732 | // |
6255180c | 733 | // linear interpolation of the parameters in the LUT between 2 values where |
734 | // the background has been actually calculated | |
041f7f97 | 735 | // |
6255180c | 736 | if (bkg>2) printf ("WARNING: unsafe extrapolation!\n"); |
737 | fBkg = bkg; | |
738 | ||
041f7f97 | 739 | Float_t bkgLevel[4] = {0, 0.5, 1, 2}; // bkg values for which LUT is calculated |
6255180c | 740 | Int_t ibkg; |
041f7f97 | 741 | for (ibkg=0; ibkg<4; ibkg++) if ( bkg < bkgLevel[ibkg]) break; |
6255180c | 742 | if (ibkg == 4) ibkg--; |
743 | if (ibkg == 0) ibkg++; | |
744 | ||
041f7f97 | 745 | Float_t x0 = bkgLevel[ibkg-1]; |
746 | Float_t x1 = bkgLevel[ibkg]; | |
6255180c | 747 | Float_t x = (bkg - x0) / (x1 - x0); |
748 | ||
749 | Float_t y0, y1; | |
750 | ||
751 | for (Int_t ip=0; ip< fNbinp; ip++){ | |
752 | for (Int_t itheta=0; itheta< fNbintheta; itheta++){ | |
753 | for (Int_t iphi=0; iphi< fNbinphi; iphi++){ | |
754 | fCurrentEntry[ip][itheta][iphi]->fP = fEntry[ip][itheta][iphi][ibkg]->fP; | |
755 | fCurrentEntry[ip][itheta][iphi]->fTheta = fEntry[ip][itheta][iphi][ibkg]->fTheta; | |
756 | fCurrentEntry[ip][itheta][iphi]->fPhi = fEntry[ip][itheta][iphi][ibkg]->fPhi; | |
757 | fCurrentEntry[ip][itheta][iphi]->fChi2p = -1; | |
758 | fCurrentEntry[ip][itheta][iphi]->fChi2theta = -1; | |
759 | fCurrentEntry[ip][itheta][iphi]->fChi2phi = -1; | |
760 | ||
761 | y0 = fEntry[ip][itheta][iphi][ibkg-1]->fMeanp; | |
762 | y1 = fEntry[ip][itheta][iphi][ibkg]->fMeanp; | |
763 | fCurrentEntry[ip][itheta][iphi] ->fMeanp = (y1 - y0) * x + y0; | |
764 | y0 = fEntry[ip][itheta][iphi][ibkg-1]->fMeantheta; | |
765 | y1 = fEntry[ip][itheta][iphi][ibkg]->fMeantheta; | |
766 | fCurrentEntry[ip][itheta][iphi] ->fMeantheta = (y1 - y0) * x + y0; | |
767 | y0 = fEntry[ip][itheta][iphi][ibkg-1]->fMeanphi; | |
768 | y1 = fEntry[ip][itheta][iphi][ibkg]->fMeanphi; | |
769 | fCurrentEntry[ip][itheta][iphi] ->fMeanphi = (y1 - y0) * x + y0; | |
770 | y0 = fEntry[ip][itheta][iphi][ibkg-1]->fSigmap; | |
771 | y1 = fEntry[ip][itheta][iphi][ibkg]->fSigmap; | |
772 | fCurrentEntry[ip][itheta][iphi] ->fSigmap = (y1 - y0) * x + y0; | |
773 | y0 = fEntry[ip][itheta][iphi][ibkg-1]->fSigmatheta; | |
774 | y1 = fEntry[ip][itheta][iphi][ibkg]->fSigmatheta; | |
775 | fCurrentEntry[ip][itheta][iphi] ->fSigmatheta = (y1 - y0) * x + y0; | |
776 | y0 = fEntry[ip][itheta][iphi][ibkg-1]->fSigmaphi; | |
777 | y1 = fEntry[ip][itheta][iphi][ibkg]->fSigmaphi; | |
778 | fCurrentEntry[ip][itheta][iphi] ->fSigmaphi = (y1 - y0) * x + y0; | |
779 | y0 = fEntry[ip][itheta][iphi][ibkg-1]->fSigma1p; | |
780 | y1 = fEntry[ip][itheta][iphi][ibkg]->fSigma1p; | |
781 | fCurrentEntry[ip][itheta][iphi] ->fSigma1p = (y1 - y0) * x + y0; | |
782 | y0 = fEntry[ip][itheta][iphi][ibkg-1]->fNormG2; | |
783 | y1 = fEntry[ip][itheta][iphi][ibkg]->fNormG2; | |
784 | fCurrentEntry[ip][itheta][iphi] ->fNormG2 = (y1 - y0) * x + y0; | |
785 | y0 = fEntry[ip][itheta][iphi][ibkg-1]->fMeanG2; | |
786 | y1 = fEntry[ip][itheta][iphi][ibkg]->fMeanG2; | |
787 | fCurrentEntry[ip][itheta][iphi] ->fMeanG2 = (y1 - y0) * x + y0; | |
788 | ||
789 | y0 = fEntry[ip][itheta][iphi][ibkg-1]->fSigmaG2; | |
790 | y1 = fEntry[ip][itheta][iphi][ibkg]->fSigmaG2; | |
791 | fCurrentEntry[ip][itheta][iphi] ->fSigmaG2 = (y1 - y0) * x + y0; | |
792 | for (Int_t i=0; i<kSplitP; i++) { | |
793 | for (Int_t j=0; j<kSplitTheta; j++) { | |
794 | fCurrentEntry[ip][itheta][iphi]->fAcc[i][j] = fEntry[ip][itheta][iphi][ibkg]->fAcc[i][j]; | |
795 | y0 = fEntry[ip][itheta][iphi][ibkg-1]->fEff[i][j]; | |
796 | y1 = fEntry[ip][itheta][iphi][ibkg]->fEff[i][j]; | |
797 | fCurrentEntry[ip][itheta][iphi]->fEff[i][j] = (y1 - y0) * x + y0; | |
798 | } | |
799 | } | |
800 | } | |
801 | } | |
802 | } | |
803 | SetSpline(); | |
804 | } | |
805 | ||
d53fc881 | 806 | TF1* AliMUONFastTracking::GetFitP(Int_t ip,Int_t itheta,Int_t iphi) { |
041f7f97 | 807 | // gets the correct prec-pgen distribution for a given LUT cell |
c6ba3ff4 | 808 | if (!fFitp[ip][itheta][iphi]) { |
809 | char name[256]; | |
810 | sprintf(name, "fit_%d_%d_%d", ip, itheta, iphi); | |
811 | fFitp[ip][itheta][iphi] = new TF1(name ,FitP,-20.,20.,6); | |
d53fc881 | 812 | fFitp[ip][itheta][iphi]->SetNpx(500); |
1e68a0c5 | 813 | fFitp[ip][itheta][iphi]->SetParameters(0.,0.,0.,0.,0.,0.); |
d53fc881 | 814 | } |
815 | return fFitp[ip][itheta][iphi]; | |
816 | } | |
6255180c | 817 | |
041f7f97 | 818 | AliMUONFastTracking& AliMUONFastTracking::operator=(const AliMUONFastTracking& rhs) |
819 | { | |
820 | // Assignment operator | |
821 | rhs.Copy(*this); | |
822 | return *this; | |
823 | } | |
824 | ||
15a060e4 | 825 | void AliMUONFastTracking::Copy(TObject&) const |
041f7f97 | 826 | { |
827 | // | |
828 | // Copy | |
829 | // | |
830 | Fatal("Copy","Not implemented!\n"); | |
831 | } | |
6255180c | 832 | |
833 | ||
834 | ||
835 | ||
836 | ||
837 | ||
838 | ||
839 |