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new unfolding for clusterization
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65bec413 1/**************************************************************************\r
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *\r
3 * *\r
4 * Author: The ALICE Off-line Project. *\r
5 * Contributors are mentioned in the code where appropriate. *\r
6 * *\r
7 * Permission to use, copy, modify and distribute this software and its *\r
8 * documentation strictly for non-commercial purposes is hereby granted *\r
9 * without fee, provided that the above copyright notice appears in all *\r
10 * copies and that both the copyright notice and this permission notice *\r
11 * appear in the supporting documentation. The authors make no claims *\r
12 * about the suitability of this software for any purpose. It is *\r
13 * provided "as is" without express or implied warranty. *\r
14 **************************************************************************/\r
15\r
16//_________________________________________________________________________\r
17// Base class for the cluster unfolding algorithm \r
18//*-- Author: Adam Matyja (SUBATECH)\r
19// Based on unfolding in clusterizerv1 done by Cynthia Hadjidakis\r
20//-- Unfolding for eta~0: Cynthia Hadjidakis - still in AliEMCALCLusterizerv1\r
21//-- Unfolding extension for whole EMCAL: Adam Matyja (SUBATECH & INP PAN)\r
22//\r
23// unfolds the clusters having several local maxima. \r
24//////////////////////////////////////////////////////////////////////////////\r
25\r
26// --- ROOT system ---\r
27#include "TClonesArray.h"\r
28//#include "TTree.h"\r
29//#include <TFile.h> \r
30//class TFolder;\r
31#include <TMath.h> \r
32#include <TMinuit.h>\r
33//#include <TTree.h> \r
34//class TSystem; \r
35//#include <TBenchmark.h>\r
36//#include <TBrowser.h>\r
37//#include <TROOT.h>\r
38\r
39// --- Standard library ---\r
40#include <cassert>\r
41\r
42// --- AliRoot header files ---\r
43#include "AliEMCALUnfolding.h"\r
44#include "AliEMCALGeometry.h"\r
45#include "AliRunLoader.h"\r
46#include "AliRun.h"\r
47#include "AliEMCAL.h"\r
48#include "AliEMCALRecParam.h"\r
49#include "AliEMCALRecPoint.h"\r
50#include "AliEMCALDigit.h"\r
51#include "AliEMCALReconstructor.h"\r
52//#include "AliEMCALClusterizer.h"\r
53\r
54\r
55\r
56#include "AliLog.h"\r
57\r
58#include "AliCDBManager.h"\r
59//#include "AliCaloCalibPedestal.h"\r
60//#include "AliEMCALCalibData.h"\r
61class AliCDBStorage;\r
62#include "AliCDBEntry.h"\r
63\r
64Double_t AliEMCALUnfolding::fSSPars[8]={0.9262,3.365,1.548,0.1625,-0.4195,0.,0.,2.332};\r
65Double_t AliEMCALUnfolding::fPar5[3]={12.31,-0.007381,-0.06936};\r
66Double_t AliEMCALUnfolding::fPar6[3]={0.05452,0.0001228,0.001361};\r
67\r
68ClassImp(AliEMCALUnfolding)\r
69 \r
70//____________________________________________________________________________\r
71AliEMCALUnfolding::AliEMCALUnfolding():\r
72 fNumberOfECAClusters(0),\r
73 fECALocMaxCut(0),\r
74 fGeom(NULL),\r
75 fRecPoints(NULL),\r
76 fDigitsArr(NULL)\r
77{\r
78 // ctor with the indication of the file where header Tree and digits Tree are stored\r
79 \r
80 Init() ;\r
81}\r
82\r
83//____________________________________________________________________________\r
84AliEMCALUnfolding::AliEMCALUnfolding(AliEMCALGeometry* geometry):\r
85 fNumberOfECAClusters(0),\r
86 fECALocMaxCut(0),\r
87 fGeom(geometry),\r
88 fRecPoints(NULL),\r
89 fDigitsArr(NULL)\r
90{\r
91 // ctor with the indication of the file where header Tree and digits Tree are stored\r
92 // use this contructor to avoid usage of Init() which uses runloader\r
93 // change needed by HLT - MP\r
94 if (!fGeom)\r
95 {\r
96 AliFatal("AliEMCALUnfolding: Geometry not initialized.");\r
97 }\r
98 \r
99}\r
100\r
101//____________________________________________________________________________\r
102AliEMCALUnfolding::AliEMCALUnfolding(AliEMCALGeometry* geometry,Float_t ECALocMaxCut,Double_t *SSPars,Double_t *Par5,Double_t *Par6):\r
103 fNumberOfECAClusters(0),\r
104 fECALocMaxCut(ECALocMaxCut),\r
105 fGeom(geometry),\r
106 fRecPoints(NULL),\r
107 fDigitsArr(NULL)\r
108{\r
109 // ctor with the indication of the file where header Tree and digits Tree are stored\r
110 // use this contructor to avoid usage of Init() which uses runloader\r
111 // change needed by HLT - MP\r
112 if (!fGeom)\r
113 {\r
114 AliFatal("AliEMCALUnfolding: Geometry not initialized.");\r
115 }\r
116 Int_t i=0;\r
117 for (i = 0; i < 8; i++) fSSPars[i] = SSPars[i];\r
118 for (i = 0; i < 3; i++) {\r
119 fPar5[i] = Par5[i];\r
120 fPar6[i] = Par6[i];\r
121 }\r
122\r
123}\r
124\r
125//____________________________________________________________________________\r
126void AliEMCALUnfolding::Init()\r
127{\r
128 // Make all memory allocations which can not be done in default constructor.\r
129 // Attach the Clusterizer task to the list of EMCAL tasks\r
130 \r
131 AliRunLoader *rl = AliRunLoader::Instance();\r
132 if (rl->GetAliRun()){\r
133 AliEMCAL* emcal = dynamic_cast<AliEMCAL*>(rl->GetAliRun()->GetDetector("EMCAL"));\r
134 if(emcal)fGeom = emcal->GetGeometry();\r
135 }\r
136 \r
137 if(!fGeom)\r
138 fGeom = AliEMCALGeometry::GetInstance(AliEMCALGeometry::GetDefaultGeometryName());\r
139 \r
140 AliDebug(1,Form("geom %p",fGeom));\r
141 \r
142 if(!gMinuit) \r
143 gMinuit = new TMinuit(100) ;\r
144 \r
145}\r
146\r
147//____________________________________________________________________________\r
148 AliEMCALUnfolding::~AliEMCALUnfolding()\r
149{\r
150 // dtor\r
151}\r
152\r
153//____________________________________________________________________________\r
154void AliEMCALUnfolding::SetInput(Int_t numberOfECAClusters,TObjArray *recPoints,TClonesArray *digitsArr)\r
155{\r
156 //\r
157 //Set input for unfolding purposes\r
158 SetNumberOfECAClusters(numberOfECAClusters);\r
159 SetRecPoints(recPoints);\r
160 SetDigitsArr(digitsArr);\r
161}\r
162\r
163//____________________________________________________________________________\r
164void AliEMCALUnfolding::MakeUnfolding()\r
165{\r
166 // Unfolds clusters using the shape of an ElectroMagnetic shower\r
167 // Performs unfolding of all clusters\r
168\r
169 if(fNumberOfECAClusters > 0){\r
170 if (fGeom==0)\r
171 AliFatal("Did not get geometry from EMCALLoader") ;\r
172 //Int_t nModulesToUnfold = fGeom->GetNCells();\r
173\r
174 Int_t numberofNotUnfolded = fNumberOfECAClusters ;\r
175 Int_t index ;\r
176 for(index = 0 ; index < numberofNotUnfolded ; index++){\r
177 AliEMCALRecPoint * recPoint = dynamic_cast<AliEMCALRecPoint *>( fRecPoints->At(index) ) ;\r
178\r
179 //do we really need it?\r
180// TVector3 gpos;\r
181// Int_t absId = -1;\r
182// recPoint->GetGlobalPosition(gpos);\r
183// fGeom->GetAbsCellIdFromEtaPhi(gpos.Eta(),gpos.Phi(),absId);\r
184// if(absId > nModulesToUnfold)\r
185// break ;\r
186\r
187 Int_t nMultipl = recPoint->GetMultiplicity() ;\r
188 AliEMCALDigit ** maxAt = new AliEMCALDigit*[nMultipl] ;\r
189 Float_t * maxAtEnergy = new Float_t[nMultipl] ;\r
190 Int_t nMax = recPoint->GetNumberOfLocalMax(maxAt, maxAtEnergy,fECALocMaxCut,fDigitsArr) ;\r
191\r
192 if( nMax > 1 ) { // if cluster is very flat (no pronounced maximum) then nMax = 0\r
193 if(UnfoldClusterV2(recPoint, nMax, maxAt, maxAtEnergy) ){\r
194 fRecPoints->Remove(recPoint);\r
195 fRecPoints->Compress() ;//is it really needed\r
196 index-- ;\r
197 fNumberOfECAClusters-- ;\r
198 numberofNotUnfolded-- ;\r
199 }\r
200 }\r
201 else{\r
202 recPoint->SetNExMax(1) ; //Only one local maximum\r
203 }\r
204\r
205 delete[] maxAt ;\r
206 delete[] maxAtEnergy ;\r
207 }\r
208 }\r
209 // End of Unfolding of clusters\r
210}\r
211\r
212//____________________________________________________________________________\r
213Bool_t AliEMCALUnfolding::UnfoldClusterV2(AliEMCALRecPoint * iniTower, \r
214 Int_t nMax, \r
215 AliEMCALDigit ** maxAt, \r
216 Float_t * maxAtEnergy)\r
217{\r
218 // Extended to whole EMCAL \r
219 // Performs the unfolding of a cluster with nMax overlapping showers \r
220 \r
221 Int_t nPar = 3 * nMax ;\r
222 Float_t * fitparameters = new Float_t[nPar] ;\r
223\r
224 if (fGeom==0)\r
225 AliFatal("Did not get geometry from EMCALLoader") ;\r
226\r
227 Bool_t rv = FindFitV2(iniTower, maxAt, maxAtEnergy, nPar, fitparameters) ;\r
228 if( !rv ) {\r
229 // Fit failed, return (and remove cluster? - why? I leave the cluster)\r
230 iniTower->SetNExMax(-1) ;\r
231 delete[] fitparameters ;\r
232 return kFALSE;\r
233 }\r
234\r
235 // create unfolded rec points and fill them with new energy lists\r
236 // First calculate energy deposited in each sell in accordance with\r
237 // fit (without fluctuations): efit[]\r
238 // and later correct this number in acordance with actual energy\r
239 // deposition\r
240\r
241 Int_t nDigits = iniTower->GetMultiplicity() ;\r
242 Float_t * efit = new Float_t[nDigits] ;//new fitted energy in cells\r
243 Float_t xpar=0.,zpar=0.,epar=0. ;//center of gravity in cell units\r
244\r
245 AliEMCALDigit * digit = 0 ;\r
246 Int_t * digitsList = iniTower->GetDigitsList() ;\r
247 \r
248 Int_t iSupMod = 0 ;\r
249 Int_t iTower = 0 ;\r
250 Int_t iIphi = 0 ;\r
251 Int_t iIeta = 0 ;\r
252 Int_t iphi = 0 ;//x direction\r
253 Int_t ieta = 0 ;//z direstion\r
254\r
255 Int_t iparam = 0 ;\r
256 Int_t iDigit = 0 ;\r
257\r
258 for(iDigit = 0 ; iDigit < nDigits ; iDigit ++){\r
259 digit = dynamic_cast<AliEMCALDigit*>( fDigitsArr->At(digitsList[iDigit] ) ) ;\r
260 fGeom->GetCellIndex(digit->GetId(),iSupMod,iTower,iIphi,iIeta); \r
261 fGeom->GetCellPhiEtaIndexInSModule(iSupMod,iTower,\r
262 iIphi, iIeta,iphi,ieta);\r
263 EvalParsPhiDependence(digit->GetId(),fGeom);\r
264\r
265 efit[iDigit] = 0.;\r
266 iparam = 0;\r
267 while(iparam < nPar ){\r
268 xpar = fitparameters[iparam] ;\r
269 zpar = fitparameters[iparam+1] ;\r
270 epar = fitparameters[iparam+2] ;\r
271 iparam += 3 ;\r
272\r
273 efit[iDigit] += epar * ShowerShapeV2((Float_t)iphi - xpar,(Float_t)ieta - zpar) ;\r
274 }\r
275\r
276 }\r
277\r
278 // Now create new RecPoints and fill energy lists with efit corrected to fluctuations\r
279 // so that energy deposited in each cell is distributed between new clusters proportionally\r
280 // to its contribution to efit\r
281\r
282 Float_t * energiesList = iniTower->GetEnergiesList() ;\r
283 Float_t ratio = 0 ;\r
284\r
285 iparam = 0 ;\r
286 while(iparam < nPar ){\r
287 xpar = fitparameters[iparam] ;\r
288 zpar = fitparameters[iparam+1] ;\r
289 epar = fitparameters[iparam+2] ;\r
290 iparam += 3 ;\r
291\r
292 AliEMCALRecPoint * recPoint = 0 ;\r
293\r
294 if(fNumberOfECAClusters >= fRecPoints->GetSize())\r
295 fRecPoints->Expand(2*fNumberOfECAClusters) ;\r
296\r
297 //add recpoint\r
298 (*fRecPoints)[fNumberOfECAClusters] = new AliEMCALRecPoint("") ;\r
299 recPoint = dynamic_cast<AliEMCALRecPoint *>( fRecPoints->At(fNumberOfECAClusters) ) ;\r
300 fNumberOfECAClusters++ ;\r
301 recPoint->SetNExMax((Int_t)nPar/3) ;\r
302\r
303 Float_t eDigit = 0. ;\r
304 for(iDigit = 0 ; iDigit < nDigits ; iDigit ++){\r
305 digit = dynamic_cast<AliEMCALDigit*>( fDigitsArr->At( digitsList[iDigit] ) ) ;\r
306 fGeom->GetCellIndex(digit->GetId(),iSupMod,iTower,iIphi,iIeta); \r
307 fGeom->GetCellPhiEtaIndexInSModule(iSupMod,iTower,\r
308 iIphi, iIeta,iphi,ieta);\r
309 EvalParsPhiDependence(digit->GetId(),fGeom);\r
310 if(efit[iDigit]==0) continue;//just for sure\r
311 ratio = epar * ShowerShapeV2((Float_t)iphi - xpar,(Float_t)ieta - zpar) / efit[iDigit] ;\r
312 eDigit = energiesList[iDigit] * ratio ;\r
313 recPoint->AddDigit( *digit, eDigit, kFALSE ) ; //FIXME, need to study the shared case\r
314 }\r
315\r
316 }\r
317\r
318 delete[] fitparameters ;\r
319 delete[] efit ;\r
320\r
321 return kTRUE;\r
322}\r
323\r
324//____________________________________________________________________________\r
325Bool_t AliEMCALUnfolding::FindFitV2(AliEMCALRecPoint * recPoint, AliEMCALDigit ** maxAt, \r
326 const Float_t* maxAtEnergy,\r
327 Int_t nPar, Float_t * fitparameters) const\r
328{\r
329 // Calls TMinuit to fit the energy distribution of a cluster with several maxima\r
330 // The initial values for fitting procedure are set equal to the\r
331 // positions of local maxima. \r
332 // Cluster will be fitted as a superposition of nPar/3\r
333 // electromagnetic showers\r
334\r
335 cout<<"inside FindFitV2"<<endl;\r
336\r
337 if (fGeom==0) AliFatal("Did not get geometry from EMCALLoader");\r
338 \r
339 if(!gMinuit)\r
340 gMinuit = new TMinuit(100) ;//max 100 parameters\r
341\r
342 gMinuit->mncler(); // Reset Minuit's list of paramters\r
343 gMinuit->SetPrintLevel(-1) ; // No Printout\r
344 gMinuit->SetFCN(AliEMCALUnfolding::UnfoldingChiSquareV2) ;\r
345 // To set the address of the minimization function\r
346 TList * toMinuit = new TList();\r
347 toMinuit->AddAt(recPoint,0) ;\r
348 toMinuit->AddAt(fDigitsArr,1) ;\r
349 toMinuit->AddAt(fGeom,2) ;\r
350\r
351 gMinuit->SetObjectFit(toMinuit) ; // To tranfer pointer to UnfoldingChiSquare\r
352\r
353 // filling initial values for fit parameters\r
354 AliEMCALDigit * digit ;\r
355\r
356 Int_t ierflg = 0;\r
357 Int_t index = 0 ;\r
358 Int_t nDigits = (Int_t) nPar / 3 ;\r
359\r
360 Int_t iDigit ;\r
361\r
362 Int_t iSupMod = 0 ;\r
363 Int_t iTower = 0 ;\r
364 Int_t iIphi = 0 ;\r
365 Int_t iIeta = 0 ;\r
366 Int_t iphi = 0 ;//x direction\r
367 Int_t ieta = 0 ;//z direstion\r
368\r
369 for(iDigit = 0; iDigit < nDigits; iDigit++){\r
370 digit = maxAt[iDigit];\r
371 fGeom->GetCellIndex(digit->GetId(),iSupMod,iTower,iIphi,iIeta); \r
372 fGeom->GetCellPhiEtaIndexInSModule(iSupMod,iTower,\r
373 iIphi, iIeta,iphi,ieta);\r
374\r
375 Float_t energy = maxAtEnergy[iDigit] ;\r
376\r
377 //gMinuit->mnparm(index, "x", iphi, 0.1, 0, 0, ierflg) ;//original\r
378 gMinuit->mnparm(index, "x", iphi, 0.05, 0, 0, ierflg) ;\r
379 index++ ;\r
380 if(ierflg != 0){\r
381 Error("FindFit", "EMCAL Unfolding Unable to set initial value for fit procedure : x = %d", iphi ) ;\r
382 toMinuit->Clear();\r
383 delete toMinuit ;\r
384 return kFALSE;\r
385 }\r
386 //gMinuit->mnparm(index, "z", ieta, 0.1, 0, 0, ierflg) ;//original\r
387 gMinuit->mnparm(index, "z", ieta, 0.05, 0, 0, ierflg) ;\r
388 index++ ;\r
389 if(ierflg != 0){\r
390 Error("FindFit", "EMCAL Unfolding Unable to set initial value for fit procedure : z = %d", ieta) ;\r
391 toMinuit->Clear();\r
392 delete toMinuit ;\r
393 return kFALSE;\r
394 }\r
395 //gMinuit->mnparm(index, "Energy", energy , 0.05*energy, 0., 4.*energy, ierflg) ;//original\r
396 gMinuit->mnparm(index, "Energy", energy , 0.001*energy, 0., 5.*energy, ierflg) ;//was 0.05\r
397 index++ ;\r
398 if(ierflg != 0){\r
399 Error("FindFit", "EMCAL Unfolding Unable to set initial value for fit procedure : energy = %f", energy) ;\r
400 toMinuit->Clear();\r
401 delete toMinuit ;\r
402 return kFALSE;\r
403 }\r
404 }\r
405\r
406 Double_t p0 = 0.1 ; // "Tolerance" Evaluation stops when EDM = 0.0001*p0 ; \r
407 // The number of function call slightly depends on it.\r
408 // Double_t p1 = 1.0 ;// par to gradient \r
409 Double_t p2 = 0.0 ;\r
410 // Double_t p3 = 3.0 ;\r
411 gMinuit->mnexcm("SET STR", &p2, 0, ierflg) ; // force TMinuit to reduce function calls\r
412 // gMinuit->mnexcm("SET GRA", &p1, 1, ierflg) ; // force TMinuit to use my gradient\r
413 gMinuit->SetMaxIterations(5);//was 5\r
414 gMinuit->mnexcm("SET NOW", &p2 , 0, ierflg) ; // No Warnings\r
415 //gMinuit->mnexcm("SET PRI", &p3 , 3, ierflg) ; // printouts\r
416\r
417 gMinuit->mnexcm("MIGRAD", &p0, 0, ierflg) ; // minimize\r
418 //gMinuit->mnexcm("MINI", &p0, 0, ierflg) ; // minimize\r
419 if(ierflg == 4){ // Minimum not found\r
420 Error("FindFit", "EMCAL Unfolding Fit not converged, cluster abandoned " ) ;\r
421 toMinuit->Clear();\r
422 delete toMinuit ;\r
423 return kFALSE ;\r
424 }\r
425 for(index = 0; index < nPar; index++){\r
426 Double_t err = 0. ;\r
427 Double_t val = 0. ;\r
428 gMinuit->GetParameter(index, val, err) ; // Returns value and error of parameter index\r
429 fitparameters[index] = val ;\r
430 }\r
431\r
432 toMinuit->Clear();\r
433 delete toMinuit ;\r
434 return kTRUE;\r
435\r
436}\r
437\r
438//____________________________________________________________________________\r
439Double_t AliEMCALUnfolding::ShowerShapeV2(Double_t x, Double_t y)\r
440{ \r
441 // extended to whole EMCAL \r
442 // Shape of the shower\r
443 // If you change this function, change also the gradient evaluation in ChiSquare()\r
444\r
445 Double_t r = fSSPars[7]*TMath::Sqrt(x*x+y*y);\r
446 Double_t rp1 = TMath::Power(r, fSSPars[1]) ;\r
447 Double_t rp5 = TMath::Power(r, fSSPars[5]) ;\r
448 Double_t shape = fSSPars[0]*TMath::Exp( -rp1 * (1. / (fSSPars[2] + fSSPars[3] * rp1) + fSSPars[4] / (1 + fSSPars[6] * rp5) ) ) ;\r
449 return shape ;\r
450}\r
451\r
452//____________________________________________________________________________\r
453void AliEMCALUnfolding::UnfoldingChiSquareV2(Int_t & nPar, Double_t * Grad,\r
454 Double_t & fret,\r
455 Double_t * x, Int_t iflag)\r
456{\r
457 // Calculates the Chi square for the cluster unfolding minimization\r
458 // Number of parameters, Gradient, Chi squared, parameters, what to do\r
459\r
460 TList * toMinuit = dynamic_cast<TList*>( gMinuit->GetObjectFit() ) ;\r
461\r
462 AliEMCALRecPoint * recPoint = dynamic_cast<AliEMCALRecPoint*>( toMinuit->At(0) ) ;\r
463 TClonesArray * digits = dynamic_cast<TClonesArray*>( toMinuit->At(1) ) ;\r
464 // A bit buggy way to get an access to the geometry\r
465 // To be revised!\r
466 AliEMCALGeometry *geom = dynamic_cast<AliEMCALGeometry *>(toMinuit->At(2));\r
467\r
468 Int_t * digitsList = recPoint->GetDigitsList() ;\r
469\r
470 Int_t nOdigits = recPoint->GetDigitsMultiplicity() ;\r
471\r
472 Float_t * energiesList = recPoint->GetEnergiesList() ;\r
473\r
474 fret = 0. ;\r
475 Int_t iparam = 0 ;\r
476\r
477 if(iflag == 2)\r
478 for(iparam = 0 ; iparam < nPar ; iparam++)\r
479 Grad[iparam] = 0 ; // Will evaluate gradient\r
480\r
481 Double_t efit = 0. ;\r
482\r
483 AliEMCALDigit * digit ;\r
484 Int_t iDigit ;\r
485\r
486 Int_t iSupMod = 0 ;\r
487 Int_t iTower = 0 ;\r
488 Int_t iIphi = 0 ;\r
489 Int_t iIeta = 0 ;\r
490 Int_t iphi = 0 ;//x direction\r
491 Int_t ieta = 0 ;//z direstion\r
492\r
493\r
494 for( iDigit = 0 ; iDigit < nOdigits ; iDigit++) {\r
495 if(energiesList[iDigit]==0) continue;\r
496\r
497 digit = dynamic_cast<AliEMCALDigit*>( digits->At( digitsList[iDigit] ) );\r
498\r
499 geom->GetCellIndex(digit->GetId(),iSupMod,iTower,iIphi,iIeta); \r
500 geom->GetCellPhiEtaIndexInSModule(iSupMod,iTower,\r
501 iIphi, iIeta,iphi,ieta);\r
502 EvalParsPhiDependence(digit->GetId(),geom);\r
503\r
504 if(iflag == 2){ // calculate gradient\r
505 Int_t iParam = 0 ;\r
506 efit = 0. ;\r
507 while(iParam < nPar ){\r
508 Double_t dx = ((Float_t)iphi - x[iParam]) ;\r
509 iParam++ ;\r
510 Double_t dz = ((Float_t)ieta - x[iParam]) ;\r
511 iParam++ ;\r
512 efit += x[iParam] * ShowerShapeV2(dx,dz) ;\r
513 iParam++ ;\r
514 }\r
515\r
516 Double_t sum = 2. * (efit - energiesList[iDigit]) / energiesList[iDigit] ; // Here we assume, that sigma = sqrt(E)\r
517 iParam = 0 ;\r
518 while(iParam < nPar ){\r
519 Double_t xpar = x[iParam] ;\r
520 Double_t zpar = x[iParam+1] ;\r
521 Double_t epar = x[iParam+2] ;\r
522\r
523 Double_t dr = fSSPars[7]*TMath::Sqrt( ((Float_t)iphi - xpar) * ((Float_t)iphi - xpar) + ((Float_t)ieta - zpar) * ((Float_t)ieta - zpar) );\r
524 Double_t shape = sum * ShowerShapeV2((Float_t)iphi - xpar,(Float_t)ieta - zpar) ;\r
525 Double_t rp1 = TMath::Power(dr, fSSPars[1]) ;\r
526 Double_t rp5 = TMath::Power(dr, fSSPars[5]) ;\r
527\r
528 Double_t deriv = -2 * TMath::Power(dr,fSSPars[1]-2.) * fSSPars[7] * fSSPars[7] * \r
529 (fSSPars[1] * ( 1/(fSSPars[2]+fSSPars[3]*rp1) + fSSPars[4]/(1+fSSPars[6]*rp5) ) - \r
530 (fSSPars[1]*fSSPars[3]*rp1/( (fSSPars[2]+fSSPars[3]*rp1)*(fSSPars[2]+fSSPars[3]*rp1) ) + \r
531 fSSPars[4]*fSSPars[5]*fSSPars[6]*rp5/( (1+fSSPars[6]*rp5)*(1+fSSPars[6]*rp5) ) ) );\r
532\r
533 //Double_t deriv =-1.33 * TMath::Power(dr,0.33)*dr * ( 1.57 / ( (1.57 + 0.0860 * r133) * (1.57 + 0.0860 * r133) )\r
534 // - 0.55 / (1 + 0.000563 * r669) / ( (1 + 0.000563 * r669) * (1 + 0.000563 * r669) ) ) ;\r
535\r
536 Grad[iParam] += epar * shape * deriv * ((Float_t)iphi - xpar) ; // Derivative over x\r
537 iParam++ ;\r
538 Grad[iParam] += epar * shape * deriv * ((Float_t)ieta - zpar) ; // Derivative over z\r
539 iParam++ ;\r
540 Grad[iParam] += shape ; // Derivative over energy\r
541 iParam++ ;\r
542 }\r
543 }\r
544 efit = 0;\r
545 iparam = 0 ;\r
546\r
547 while(iparam < nPar ){\r
548 Double_t xpar = x[iparam] ;\r
549 Double_t zpar = x[iparam+1] ;\r
550 Double_t epar = x[iparam+2] ;\r
551 iparam += 3 ;\r
552 efit += epar * ShowerShapeV2((Float_t)iphi - xpar,(Float_t)ieta - zpar) ;\r
553 }\r
554\r
555 fret += (efit-energiesList[iDigit])*(efit-energiesList[iDigit])/energiesList[iDigit] ;\r
556 // Here we assume, that sigma = sqrt(E) \r
557 }\r
558\r
559}\r
560\r
561\r
562//____________________________________________________________________________\r
563void AliEMCALUnfolding::SetShowerShapeParams(Double_t *pars){\r
564 for(UInt_t i=0;i<7;++i)\r
565 fSSPars[i]=pars[i];\r
566 if(pars[2]==0. && pars[3]==0.) fSSPars[2]=1.;//to avoid dividing by 0\r
567}\r
568\r
569//____________________________________________________________________________\r
570void AliEMCALUnfolding::SetPar5(Double_t *pars){\r
571 for(UInt_t i=0;i<3;++i)\r
572 fPar5[i]=pars[i];\r
573}\r
574\r
575//____________________________________________________________________________\r
576void AliEMCALUnfolding::SetPar6(Double_t *pars){\r
577 for(UInt_t i=0;i<3;++i)\r
578 fPar6[i]=pars[i];\r
579}\r
580\r
581//____________________________________________________________________________\r
582void AliEMCALUnfolding::EvalPar5(Double_t phi){\r
583 //\r
584 //Evaluate the 5th parameter of the shower shape function\r
585 //phi in degrees range (-10,10)\r
586 //\r
587 //fSSPars[5] = 12.31 - phi*0.007381 - phi*phi*0.06936;\r
588 fSSPars[5] = fPar5[0] + phi * fPar5[1] + phi*phi * fPar5[2];\r
589}\r
590\r
591//____________________________________________________________________________\r
592void AliEMCALUnfolding::EvalPar6(Double_t phi){\r
593 //\r
594 //Evaluate the 6th parameter of the shower shape function\r
595 //phi in degrees range (-10,10)\r
596 //\r
597 //fSSPars[6] = 0.05452 + phi*0.0001228 + phi*phi*0.001361;\r
598 fSSPars[6] = fPar6[0] + phi * fPar6[1] + phi*phi * fPar6[2];\r
599}\r
600\r
601//____________________________________________________________________________\r
602void AliEMCALUnfolding::EvalParsPhiDependence(Int_t absId, AliEMCALGeometry *geom){\r
603 //\r
604 // calculate params p5 and p6 depending on the phi angle in global coordinate\r
605 // for the cell with given absId index\r
606 //\r
607 Double_t etaGlob = 0.;//eta in global c.s. - unused\r
608 Double_t phiGlob = 0.;//phi in global c.s. in radians\r
609 geom->EtaPhiFromIndex(absId, etaGlob, phiGlob);\r
610 phiGlob*=180./TMath::Pi();\r
611 phiGlob-=90.;\r
612 phiGlob-= (Double_t)((Int_t)geom->GetSuperModuleNumber(absId)/2 * 20);\r
613\r
614 EvalPar5(phiGlob);\r
615 EvalPar6(phiGlob);\r
616}\r
617\r