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ce85db45 | 1 | // |
2 | // Task to analyse the AOD for for dN/deta in the base regions | |
3 | // | |
4 | #ifndef ALIBASEDNDETATASK_H | |
5 | #define ALIBASEDNDETATASK_H | |
ffca499d | 6 | /** |
7 | * @file AliBasedNdetaTask.h | |
8 | * @author Christian Holm Christensen <cholm@dalsgaard.hehi.nbi.dk> | |
9 | * @date Wed Mar 23 13:58:12 2011 | |
10 | * | |
11 | * @brief | |
12 | * | |
bd6f5206 | 13 | * @ingroup pwglf_forward_dndeta |
ffca499d | 14 | * |
15 | */ | |
ce85db45 | 16 | #include <AliAnalysisTaskSE.h> |
e308a636 | 17 | class TAxis; |
ce85db45 | 18 | class TList; |
19 | class TH2D; | |
f67d699c | 20 | class TH2F; |
ce85db45 | 21 | class TH1D; |
ffca499d | 22 | class TH1I; |
ce85db45 | 23 | class AliAODEvent; |
e1f47419 | 24 | class AliAODForwardMult; |
e308a636 | 25 | class TObjArray; |
ce85db45 | 26 | |
ffca499d | 27 | /** |
bd6f5206 | 28 | * @defgroup pwglf_forward_tasks_dndeta dN/deta tasks |
290052e7 | 29 | * |
30 | * Code to produce @f$ dN/d\eta@f$ | |
31 | * | |
bd6f5206 | 32 | * @ingroup pwglf_forward_tasks |
ffca499d | 33 | */ |
34 | /** | |
bd6f5206 | 35 | * @defgroup pwglf_forward_dndeta dN/deta |
ffca499d | 36 | * |
37 | * @f$ dN/d\eta@f$ code | |
38 | * | |
bd6f5206 | 39 | * @ingroup pwglf_forward_topical |
ffca499d | 40 | */ |
ce85db45 | 41 | /** |
ffca499d | 42 | * Base class for tasks to determine @f$ dN/d\eta@f$ |
43 | * | |
bd6f5206 | 44 | * @ingroup pwglf_forward_tasks_dndeta |
45 | * @ingroup pwglf_forward_dndeta | |
ce85db45 | 46 | */ |
47 | class AliBasedNdetaTask : public AliAnalysisTaskSE | |
48 | { | |
49 | public: | |
ffca499d | 50 | /** |
51 | * Bit mask values of the normalisation scheme | |
52 | */ | |
53 | enum { | |
54 | /** Only normalize to accepted events */ | |
55 | kNone = 0, | |
56 | /** | |
57 | * Do the full normalisation | |
58 | * @f[ | |
59 | * N = \frac{1}{\epsilon_X}(N_A-N_A/N_V(N_T-N_V)) = | |
60 | * \frac{1}{\epsilon_X}\frac{1}{\epsilon_V}N_A | |
61 | * @f] | |
62 | */ | |
63 | kEventLevel = 0x1, | |
ffca499d | 64 | /** |
65 | * Do the shape correction | |
66 | */ | |
0be6c8cd | 67 | kShape = 0x2, |
ffca499d | 68 | /** |
69 | * Correct for background events (A+C-E). Not implemented yet | |
70 | */ | |
0be6c8cd | 71 | kBackground = 0x4, |
ffca499d | 72 | /** |
0be6c8cd | 73 | * Correct for the trigger efficiency from MC |
ffca499d | 74 | */ |
0be6c8cd | 75 | kTriggerEfficiency = 0x8, |
4fa8d795 | 76 | /** |
77 | * Correct using zero-bin efficiency only | |
78 | */ | |
79 | kZeroBin = 0x10, | |
0be6c8cd | 80 | /** |
81 | * Do the full correction | |
ffca499d | 82 | */ |
0be6c8cd | 83 | kFull = kEventLevel | kShape | kBackground | kTriggerEfficiency, |
ffca499d | 84 | }; |
ce85db45 | 85 | /** |
86 | * Constructor | |
87 | * | |
88 | */ | |
89 | AliBasedNdetaTask(); | |
90 | /** | |
91 | * Constructor | |
92 | * | |
93 | * @param name Name of task | |
ce85db45 | 94 | */ |
95 | AliBasedNdetaTask(const char* name); | |
e1f47419 | 96 | /** |
97 | * Destructor | |
98 | * | |
99 | */ | |
100 | virtual ~AliBasedNdetaTask(); | |
ce85db45 | 101 | |
e1f47419 | 102 | /** |
103 | * @{ | |
104 | * @name Task configuration | |
105 | */ | |
290052e7 | 106 | /** |
107 | * Set the debug level | |
108 | * | |
109 | * @param level Debug level | |
110 | */ | |
f53fb4f6 | 111 | virtual void SetDebugLevel(Int_t level); |
ce85db45 | 112 | /** |
113 | * Set the vertex range to use | |
114 | * | |
115 | * @param min Minimum (in centermeter) | |
116 | * @param max Maximum (in centermeter) | |
117 | */ | |
118 | void SetVertexRange(Double_t min, Double_t max) { fVtxMin=min; fVtxMax=max; } | |
119 | /** | |
120 | * Set the rebinning factor | |
121 | * | |
122 | * @param rebin Rebinning factor | |
123 | */ | |
124 | void SetRebinning(Int_t rebin) { fRebin = rebin; } | |
125 | /** | |
126 | * Set the trigger maskl | |
127 | * | |
128 | * @param mask Trigger mask | |
129 | */ | |
0be6c8cd | 130 | void SetTriggerMask(UShort_t mask); |
ce85db45 | 131 | /** |
132 | * Set the trigger mask | |
133 | * | |
134 | * @param mask trigger mask | |
135 | */ | |
136 | void SetTriggerMask(const char* mask); | |
e308a636 | 137 | /** |
138 | * Set the centrality bins to use. | |
139 | * | |
140 | * @code | |
141 | * UShort_t bins[] = { 0, 5, 10, 20, 30, 40, 50, 60, 70, 80, 90, 100 }; | |
142 | * task->SetCentralityBins(11, bins); | |
143 | * @endcode | |
144 | * | |
145 | * @param n Number of bins (elements in @a bins minus 1) | |
146 | * @param bins Bin limits | |
147 | */ | |
148 | void SetCentralityAxis(UShort_t n, Short_t* bins); | |
3846ec25 | 149 | /** |
ffca499d | 150 | * Whether to cut edges when merging |
3846ec25 | 151 | * |
ffca499d | 152 | * @param cut If true, cut edges |
3846ec25 | 153 | */ |
154 | void SetCutEdges(Bool_t cut) {fCutEdges = cut;} | |
c25b5e1b | 155 | /** |
156 | * Set whether to correct for empty bins when projecting on the X axis. | |
157 | * | |
158 | * @param use Whether to correct for empty bins | |
159 | */ | |
160 | void SetCorrEmpty(Bool_t use) { fCorrEmpty = use; } | |
161 | /** | |
162 | * Set whether to use the ROOT TH2::ProjectionX method when | |
163 | * projecting on the X axis. | |
164 | * | |
165 | * @param use Whether to use TH2::ProjectionX | |
166 | */ | |
167 | void SetUseROOTProjectX(Bool_t use) { fUseROOTProj = use; } | |
e58000b7 | 168 | /** |
169 | * Trigger efficiency for selected trigger(s) | |
170 | * | |
171 | * @param e Trigger efficiency | |
172 | */ | |
173 | void SetTriggerEff(Double_t e) { fTriggerEff = e; } | |
66cf95f2 | 174 | /** |
175 | * Trigger efficiency for 0-bin for selected trigger(s) | |
176 | * | |
177 | * @param e Trigger efficiency for 0-bin | |
178 | */ | |
179 | void SetTriggerEff0(Double_t e) { fTriggerEff0 = e; } | |
e58000b7 | 180 | /** |
181 | * Set the shape correction (a.k.a., track correction) for selected | |
182 | * trigger(s) | |
183 | * | |
184 | * @param h Correction | |
185 | */ | |
f67d699c | 186 | void SetShapeCorrection(const TH2F* h); |
a76fb27d | 187 | /** |
188 | * Get a string representing the normalization scheme | |
189 | * | |
190 | * @param scheme Normalization scheme bits | |
191 | * | |
192 | * @return String representation | |
193 | */ | |
194 | static const Char_t* NormalizationSchemeString(UShort_t scheme); | |
195 | /** | |
196 | * Parse a string representing the normalization scheme | |
197 | * | |
198 | * @param what String of the normalization scheme | |
199 | * | |
200 | * @return normalization scheme bits | |
201 | */ | |
202 | static UShort_t ParseNormalizationScheme(const Char_t* what); | |
678a4979 | 203 | /** |
ffca499d | 204 | * Setthe normalisation scheme to use |
205 | * | |
206 | * @param scheme Normalisation scheme | |
207 | */ | |
0be6c8cd | 208 | void SetNormalizationScheme(UShort_t scheme); |
ffca499d | 209 | /** |
210 | * Space, pipe, or comma separated list of options | |
211 | * | |
212 | * @param what List of options | |
678a4979 | 213 | */ |
ffca499d | 214 | void SetNormalizationScheme(const char* what); |
c89b9ac1 | 215 | /** |
216 | * Filename of final MC correction | |
217 | * | |
218 | * @param filename filename | |
219 | */ | |
220 | void SetMCFinalCorrFilename(const char* filename) { | |
221 | fFinalMCCorrFile.Clear(); | |
222 | fFinalMCCorrFile.Append(filename); | |
223 | } | |
678a4979 | 224 | /** |
225 | * Load the normalization data - done automatically if not set from outside | |
226 | * | |
e1f47419 | 227 | * @param sys system |
228 | * @param energy energy | |
678a4979 | 229 | */ |
e1f47419 | 230 | void LoadNormalizationData(UShort_t sys, UShort_t energy); |
231 | /** @} */ | |
0be6c8cd | 232 | /** |
233 | * Print information | |
234 | * | |
235 | * @param option Not used | |
236 | */ | |
237 | void Print(Option_t* option="") const; | |
e1f47419 | 238 | /** @{ |
239 | * @name Task interface | |
ce85db45 | 240 | */ |
ce85db45 | 241 | /** |
242 | * Initialise on master - does nothing | |
243 | * | |
244 | */ | |
245 | virtual void Init() {} | |
246 | /** | |
247 | * Create output objects. | |
248 | * | |
249 | * This is called once per slave process | |
250 | */ | |
251 | virtual void UserCreateOutputObjects(); | |
252 | /** | |
253 | * Process a single event | |
254 | * | |
255 | * @param option Not used | |
256 | */ | |
257 | virtual void UserExec(Option_t* option); | |
258 | /** | |
ffca499d | 259 | * Called at end of event processing. |
ce85db45 | 260 | * |
261 | * This is called once in the master | |
262 | * | |
263 | * @param option Not used | |
264 | */ | |
265 | virtual void Terminate(Option_t* option); | |
ffca499d | 266 | /* @} */ |
ce85db45 | 267 | |
268 | /** | |
e1f47419 | 269 | * @{ |
270 | * @name Services member functions | |
ce85db45 | 271 | */ |
ce85db45 | 272 | /** |
273 | * Make a copy of the input histogram and rebin that histogram | |
274 | * | |
ffca499d | 275 | * @param h Histogram to rebin |
276 | * @param rebin Rebinning factor | |
277 | * @param cutEdges Whether to cut edges when rebinning | |
ce85db45 | 278 | * |
279 | * @return New (rebinned) histogram | |
280 | */ | |
e1f47419 | 281 | static TH1D* Rebin(const TH1D* h, Int_t rebin, Bool_t cutEdges=false); |
ce85db45 | 282 | /** |
283 | * Make an extension of @a h to make it symmetric about 0 | |
284 | * | |
285 | * @param h Histogram to symmertrice | |
286 | * | |
287 | * @return Symmetric extension of @a h | |
288 | */ | |
e1f47419 | 289 | static TH1* Symmetrice(const TH1* h); |
ce85db45 | 290 | /** |
291 | * Project onto the X axis | |
292 | * | |
293 | * @param h 2D histogram | |
294 | * @param name New name | |
295 | * @param firstbin First bin to use | |
296 | * @param lastbin Last bin to use | |
9f773c15 | 297 | * @param useROOT Use TH2::ProjectionX instead of custom code |
ffca499d | 298 | * @param corr Whether to do corrections or not |
ce85db45 | 299 | * @param error Whether to calculate errors |
300 | * | |
301 | * @return Newly created histogram or null | |
302 | */ | |
e1f47419 | 303 | static TH1D* ProjectX(const TH2D* h, |
304 | const char* name, | |
305 | Int_t firstbin, | |
306 | Int_t lastbin, | |
c25b5e1b | 307 | bool useROOT=false, |
e1f47419 | 308 | bool corr=true, |
309 | bool error=true); | |
4fa8d795 | 310 | /** |
311 | * Scale the copy of the 2D histogram by coverage in supplied 1D histogram | |
312 | * | |
313 | * @param copy Data to scale | |
314 | * @param norm Coverage histogram | |
315 | */ | |
316 | static void ScaleToCoverage(TH2D* copy, const TH1D* norm); | |
ce85db45 | 317 | /** |
318 | * Set histogram graphical options, etc. | |
319 | * | |
320 | * @param h Histogram to modify | |
321 | * @param colour Marker color | |
322 | * @param marker Marker style | |
323 | * @param title Title of histogram | |
324 | * @param ytitle Title on y-axis. | |
325 | */ | |
e1f47419 | 326 | static void SetHistogramAttributes(TH1D* h, Int_t colour, Int_t marker, |
327 | const char* title, | |
328 | const char* ytitle="#frac{1}{N} #frac{dN_{ch}}{d#eta}"); | |
329 | /** @} */ | |
9ecab72f | 330 | |
331 | /** | |
332 | * Marker styles | |
333 | */ | |
334 | enum { | |
335 | kSolid = 0x000, | |
336 | kHollow = 0x001, | |
337 | kCircle = 0x002, | |
338 | kSquare = 0x004, | |
339 | kUpTriangle = 0x006, | |
340 | kDownTriangle = 0x008, | |
341 | kDiamond = 0x00a, | |
342 | kCross = 0x00c, | |
343 | kStar = 0x00e | |
344 | }; | |
290052e7 | 345 | /** |
346 | * Get the marker style from option bits | |
347 | * | |
348 | * @param bits Option bits | |
349 | * | |
350 | * @return Marker style | |
351 | */ | |
9ecab72f | 352 | static Int_t GetMarkerStyle(UShort_t bits); |
290052e7 | 353 | /** |
354 | * Get the marker option bits from a style | |
355 | * | |
356 | * @param style Style | |
357 | * | |
358 | * @return option bits | |
359 | */ | |
9ecab72f | 360 | static UShort_t GetMarkerBits(Int_t style); |
290052e7 | 361 | /** |
362 | * Flip an option bit | |
363 | * | |
364 | * @param style Style parameter | |
365 | * | |
366 | * @return New style | |
367 | */ | |
9ecab72f | 368 | static Int_t FlipHollowStyle(Int_t style); |
e1f47419 | 369 | protected: |
9ecab72f | 370 | /** |
371 | * Copy contructor | |
372 | */ | |
e1f47419 | 373 | AliBasedNdetaTask(const AliBasedNdetaTask&); |
9ecab72f | 374 | /** |
375 | * Assignment operator | |
376 | * | |
377 | * | |
378 | * @return | |
379 | */ | |
e1f47419 | 380 | AliBasedNdetaTask& operator=(const AliBasedNdetaTask&) { return *this; } |
9ecab72f | 381 | // Forward declaration |
e1f47419 | 382 | class CentralityBin; |
f67d699c | 383 | /** |
384 | * Create the CentralityBin objects if not already done. | |
385 | * | |
386 | */ | |
387 | virtual void InitializeCentBins(); | |
e1f47419 | 388 | /** |
389 | * Retrieve the histogram | |
390 | * | |
391 | * @param aod AOD event | |
392 | * @param mc Whether to get the MC histogram or not | |
393 | * | |
394 | * @return Retrieved histogram or null | |
395 | */ | |
396 | virtual TH2D* GetHistogram(const AliAODEvent* aod, Bool_t mc=false) = 0; | |
ffca499d | 397 | /** |
9ecab72f | 398 | * Get the colour to use for markers (only pp - in PbPb we use a rainbow) |
ffca499d | 399 | * |
400 | * @return Marker colour | |
401 | */ | |
9ecab72f | 402 | virtual Int_t GetColor() const { return kBlack; } |
ffca499d | 403 | /** |
404 | * Get the marker style | |
405 | * | |
406 | * @return Marker style | |
407 | */ | |
9ecab72f | 408 | virtual Int_t GetMarker() const { return GetMarkerStyle(kCircle); } |
e308a636 | 409 | /** |
410 | * Add a centrality bin | |
411 | * | |
ffca499d | 412 | * @param at Where in the list to add this bin |
e308a636 | 413 | * @param low Low cut |
414 | * @param high High cut | |
415 | */ | |
416 | void AddCentralityBin(UShort_t at, Short_t low, Short_t high); | |
e1f47419 | 417 | /** |
418 | * Make a centrality bin | |
419 | * | |
420 | * @param name Name used for histograms | |
421 | * @param low Low cut in percent | |
422 | * @param high High cut in percent | |
423 | * | |
424 | * @return A newly created centrality bin | |
425 | */ | |
426 | virtual CentralityBin* MakeCentralityBin(const char* name, Short_t low, | |
427 | Short_t high) const; | |
4fa8d795 | 428 | |
429 | //================================================================== | |
9ecab72f | 430 | /** |
431 | * Class that holds the sum of the data - possibly split into 0 or | |
432 | * non-zero bins | |
433 | * | |
434 | */ | |
4fa8d795 | 435 | struct Sum : public TNamed |
436 | { | |
437 | TH2D* fSum; // Sum of non-zero events | |
438 | TH2D* fSum0; // Sum of zero events | |
439 | TH1I* fEvents; // Distribution of events | |
f53fb4f6 | 440 | Int_t fDebug; // Debug level |
9ecab72f | 441 | /** |
442 | * I/O Constructor - do not use | |
443 | */ | |
f53fb4f6 | 444 | Sum() : fSum(0), fSum0(0), fEvents(0), fDebug(0) {} |
9ecab72f | 445 | /** |
446 | * Constructor | |
447 | * | |
448 | * @param name Name | |
449 | * @param postfix Possible post-fix | |
450 | */ | |
4fa8d795 | 451 | Sum(const char* name, const char* postfix) |
452 | : TNamed(name,postfix), | |
453 | fSum(0), | |
454 | fSum0(0), | |
f53fb4f6 | 455 | fEvents(0), |
456 | fDebug(0) | |
4fa8d795 | 457 | {} |
9ecab72f | 458 | /** |
459 | * Copy constructor | |
460 | * | |
461 | * @param o Object to copy from | |
462 | */ | |
4fa8d795 | 463 | Sum(const Sum& o) |
464 | : TNamed(o), | |
465 | fSum(o.fSum), | |
466 | fSum0(o.fSum0), | |
f53fb4f6 | 467 | fEvents(o.fEvents), |
468 | fDebug(o.fDebug) | |
4fa8d795 | 469 | {} |
9ecab72f | 470 | /** |
471 | * Assignment operator | |
472 | * | |
473 | * @param o Object to assign from | |
474 | * | |
475 | * @return Reference to this object | |
476 | */ | |
4fa8d795 | 477 | Sum& operator=(const Sum& o) { |
478 | SetName(o.GetName()); fSum = o.fSum; fSum0 = o.fSum0; fEvents=o.fEvents; | |
479 | return *this; | |
480 | } | |
9ecab72f | 481 | /** |
482 | * Destructor | |
483 | */ | |
4fa8d795 | 484 | ~Sum() {} |
9ecab72f | 485 | /** |
486 | * Initialise this object. | |
487 | * | |
488 | * @param list List to add histograms to | |
489 | * @param data Format of data to be cloned here | |
490 | * @param col Color | |
491 | */ | |
4fa8d795 | 492 | void Init(TList* list, const TH2D* data, Int_t col); |
9ecab72f | 493 | /** |
494 | * Add an event | |
495 | * | |
496 | * @param data Data to add | |
497 | * @param isZero If this is zero event | |
498 | */ | |
4fa8d795 | 499 | void Add(const TH2D* data, Bool_t isZero=false); |
f67d699c | 500 | /** |
501 | * Get the histogram name | |
502 | * | |
503 | * @param name Base name | |
504 | * @param what Which one | |
505 | * @param post Possible postfix | |
506 | * | |
507 | * @return Name | |
508 | */ | |
509 | static TString GetHistName(const char* name, Int_t what=0, | |
510 | const char* post=0); | |
9ecab72f | 511 | /** |
512 | * Get the histogram name | |
513 | * | |
514 | * @param what Which one | |
515 | * | |
516 | * @return Name | |
517 | */ | |
4fa8d795 | 518 | TString GetHistName(Int_t what=0) const; |
9ecab72f | 519 | /** |
520 | * Get the sum | |
521 | * | |
9ecab72f | 522 | * @param o Output list |
523 | * @param ntotal On return, the total number of events | |
524 | * @param zeroEff Zero-bin efficiency | |
525 | * @param otherEff Non-zero-bin efficiency | |
526 | * @param marker Marker to use | |
527 | * @param rootXproj Whether to use TH2::ProjectionX | |
528 | * @param corrEmpty Correct for empty bins | |
529 | * | |
530 | * @return The total sum histogram | |
531 | */ | |
f67d699c | 532 | TH2D* CalcSum(TList* o, Double_t& ntotal, |
533 | Double_t zeroEff, Double_t otherEff=1, Int_t marker=20, | |
534 | Bool_t rootXproj=false, Bool_t corrEmpty=true) const; | |
4fa8d795 | 535 | }; |
4fa8d795 | 536 | |
537 | //================================================================== | |
e1f47419 | 538 | /** |
539 | * Calculations done per centrality | |
540 | * | |
541 | */ | |
badf1074 | 542 | class CentralityBin : public TNamed |
e1f47419 | 543 | { |
badf1074 | 544 | public: |
ffca499d | 545 | /** dN |
e1f47419 | 546 | * Constructor |
547 | */ | |
548 | CentralityBin(); | |
549 | /** | |
550 | * Constructor | |
551 | * | |
552 | * @param name Name used for histograms (e.g., Forward) | |
553 | * @param low Lower centrality cut in percent | |
554 | * @param high Upper centrality cut in percent | |
555 | */ | |
556 | CentralityBin(const char* name, Short_t low, Short_t high); | |
557 | /** | |
558 | * Copy constructor | |
559 | * | |
560 | * @param other Object to copy from | |
561 | */ | |
562 | CentralityBin(const CentralityBin& other); | |
563 | /** | |
564 | * Destructor | |
565 | */ | |
566 | virtual ~CentralityBin(); | |
567 | /** | |
568 | * Assignment operator | |
569 | * | |
570 | * @param other Object to assign from | |
571 | * | |
572 | * @return Reference to this | |
573 | */ | |
574 | CentralityBin& operator=(const CentralityBin& other); | |
575 | /** | |
576 | * Check if this is the 'all' bin | |
577 | * | |
578 | * @return true if low and high cuts are both zero | |
579 | */ | |
580 | Bool_t IsAllBin() const { return fLow == 0 && fHigh == 0; } | |
581 | /** | |
582 | * Get the list name | |
583 | * | |
584 | * @return List Name | |
585 | */ | |
586 | const char* GetListName() const; | |
587 | /** | |
588 | * Create output objects | |
589 | * | |
590 | * @param dir Parent list | |
591 | */ | |
592 | virtual void CreateOutputObjects(TList* dir); | |
593 | /** | |
594 | * Process an event | |
595 | * | |
596 | * @param forward Forward data (for trigger, vertex, & centrality) | |
597 | * @param triggerMask Trigger mask | |
9ecab72f | 598 | * @param isZero True if this is a zero bin event |
e1f47419 | 599 | * @param vzMin Minimum IP z coordinate |
600 | * @param vzMax Maximum IP z coordinate | |
601 | * @param data Data histogram | |
602 | * @param mc MC histogram | |
603 | */ | |
604 | virtual void ProcessEvent(const AliAODForwardMult* forward, | |
ffca499d | 605 | Int_t triggerMask, |
4fa8d795 | 606 | Bool_t isZero, |
ffca499d | 607 | Double_t vzMin, |
608 | Double_t vzMax, | |
609 | const TH2D* data, | |
610 | const TH2D* mc); | |
b30dee70 | 611 | /** |
612 | * Calculate the Event-Level normalization. | |
613 | * | |
614 | * The full event level normalization for trigger @f$X@f$ is given by | |
615 | * @f{eqnarray*}{ | |
616 | * N &=& \frac{1}{\epsilon_X} | |
617 | * \left(N_A+\frac{N_A}{N_V}(N_{-V}-\beta)\right)\\ | |
618 | * &=& \frac{1}{\epsilon_X}N_A | |
619 | * \left(1+\frac{1}{N_V}(N_T-N_V-\beta)\right)\\ | |
620 | * &=& \frac{1}{\epsilon_X}N_A | |
621 | * \left(1+\frac{N_T}{N_V}-1-\frac{\beta}{N_V}\right)\\ | |
622 | * &=& \frac{1}{\epsilon_X}N_A | |
623 | * \left(\frac{1}{\epsilon_V}-\frac{\beta}{N_V}\right) | |
624 | * @f} | |
625 | * where | |
626 | * | |
627 | * - @f$\epsilon_X=\frac{N_{T,X}}{N_X}@f$ is the trigger | |
628 | * efficiency evaluated in simulation. | |
629 | * - @f$\epsilon_V=\frac{N_V}{N_T}@f$ is the vertex efficiency | |
630 | * evaluated from the data | |
631 | * - @f$N_X@f$ is the Monte-Carlo truth number of events of type | |
632 | * @f$X@f$. | |
633 | * - @f$N_{T,X}@f$ is the Monte-Carlo truth number of events of type | |
634 | * @f$X@f$ which was also triggered as such. | |
635 | * - @f$N_T@f$ is the number of data events that where triggered | |
636 | * as type @f$X@f$ and had a collision trigger (CINT1B) | |
637 | * - @f$N_V@f$ is the number of data events that where triggered | |
638 | * as type @f$X@f$, had a collision trigger (CINT1B), and had | |
639 | * a vertex. | |
640 | * - @f$N_{-V}@f$ is the number of data events that where triggered | |
641 | * as type @f$X@f$, had a collision trigger (CINT1B), but no | |
642 | * vertex. | |
643 | * - @f$N_A@f$ is the number of data events that where triggered | |
644 | * as type @f$X@f$, had a collision trigger (CINT1B), and had | |
645 | * a vertex in the selected range. | |
646 | * - @f$\beta=N_a+N_c-N_e@f$ is the number of control triggers that | |
647 | * were also triggered as type @f$X@f$. | |
648 | * - @f$N_a@f$ Number of beam-empty events also triggered as type | |
649 | * @f$X@f$ events (CINT1-A or CINT1-AC). | |
650 | * - @f$N_c@f$ Number of empty-beam events also triggered as type | |
651 | * @f$X@f$ events (CINT1-C). | |
652 | * - @f$N_e@f$ Number of empty-empty events also triggered as type | |
653 | * @f$X@f$ events (CINT1-E). | |
654 | * | |
655 | * Note, that if @f$ \beta \ll N_A@f$ the last term can be ignored, and | |
656 | * the expression simplyfies to | |
657 | * @f[ | |
658 | * N = \frac{1}{\epsilon_X}\frac{1}{\epsilon_V}N_A | |
659 | * @f] | |
660 | * | |
661 | * @param t Histogram of triggers | |
662 | * @param scheme Normalisation scheme | |
663 | * @param trgEff Trigger efficiency | |
664 | * @param ntotal On return, the total number of events to normalise to. | |
665 | * | |
666 | * @return @f$N_A/N@f$ or negative number in case of errors. | |
667 | */ | |
668 | virtual Double_t Normalization(const TH1I& t, | |
669 | UShort_t scheme, | |
670 | Double_t trgEff, | |
671 | Double_t& ntotal) const; | |
c25b5e1b | 672 | /** |
673 | * Generate the dN/deta result from input | |
674 | * | |
675 | * @param sum Sum of 2D hists | |
676 | * @param postfix Post fix on names | |
677 | * @param rootProj Whether to use ROOT TH2::ProjectionX | |
678 | * @param corrEmpty Correct for empty bins | |
679 | * @param shapeCorr Shape correction to use | |
680 | * @param scaler Event-level normalization scaler | |
681 | * @param symmetrice Whether to make symmetric extensions | |
682 | * @param rebin Whether to rebin | |
683 | * @param cutEdges Whether to cut edges when rebinning | |
9f773c15 | 684 | * @param marker Marker style |
c6115ede | 685 | * @param color Color of markers |
686 | * @param mclist List of MC data | |
687 | * @param truthlist List of MC truth data | |
c25b5e1b | 688 | */ |
689 | virtual void MakeResult(const TH2D* sum, | |
690 | const char* postfix, | |
691 | bool rootProj, | |
692 | bool corrEmpty, | |
f67d699c | 693 | const TH2F* shapeCorr, |
c25b5e1b | 694 | Double_t scaler, |
695 | bool symmetrice, | |
696 | Int_t rebin, | |
697 | bool cutEdges, | |
9ecab72f | 698 | Int_t marker, |
c89b9ac1 | 699 | Int_t color, |
700 | TList* mclist, | |
701 | TList* truthlist); | |
e1f47419 | 702 | /** |
703 | * End of processing | |
704 | * | |
705 | * @param sums List of sums | |
706 | * @param results Output list of results | |
ffca499d | 707 | * @param scheme Normalisation scheme options |
e1f47419 | 708 | * @param shapeCorr Shape correction or nil |
709 | * @param trigEff Trigger efficiency | |
66cf95f2 | 710 | * @param trigEff0 0-bin trigger efficiency |
e1f47419 | 711 | * @param symmetrice Whether to symmetrice the results |
712 | * @param rebin Whether to rebin the results | |
c25b5e1b | 713 | * @param rootProj If true, use TH2::ProjectionX |
e1f47419 | 714 | * @param corrEmpty Whether to correct for empty bins |
715 | * @param cutEdges Whether to cut edges when rebinning | |
e1f47419 | 716 | * @param triggerMask Trigger mask |
ffca499d | 717 | * @param marker Marker style |
c6115ede | 718 | * @param color Color of markers |
719 | * @param mclist List of MC data | |
720 | * @param truthlist List of MC truth data | |
e1f47419 | 721 | */ |
722 | virtual void End(TList* sums, | |
723 | TList* results, | |
ffca499d | 724 | UShort_t scheme, |
f67d699c | 725 | const TH2F* shapeCorr, |
e1f47419 | 726 | Double_t trigEff, |
66cf95f2 | 727 | Double_t trigEff0, |
e1f47419 | 728 | Bool_t symmetrice, |
729 | Int_t rebin, | |
c25b5e1b | 730 | Bool_t rootProj, |
e1f47419 | 731 | Bool_t corrEmpty, |
732 | Bool_t cutEdges, | |
ffca499d | 733 | Int_t triggerMask, |
9ecab72f | 734 | Int_t marker, |
c89b9ac1 | 735 | Int_t color, |
736 | TList* mclist, | |
737 | TList* truthlist); | |
e1f47419 | 738 | /** |
739 | * @{ | |
740 | * @name Access histograms | |
741 | */ | |
742 | /** | |
743 | * Get sum histogram | |
744 | * | |
745 | * @param mc If true, return MC histogram | |
746 | * | |
747 | * @return Sum histogram | |
748 | */ | |
4fa8d795 | 749 | const Sum* GetSum(Bool_t mc=false) const { return mc ? fSumMC : fSum; } |
e1f47419 | 750 | /** |
751 | * Get sum histogram | |
752 | * | |
753 | * @param mc If true, return MC histogram | |
754 | * | |
755 | * @return Sum histogram | |
756 | */ | |
4fa8d795 | 757 | Sum* GetSum(Bool_t mc=false) { return mc ? fSumMC : fSum; } |
e1f47419 | 758 | /** |
759 | * Get trigger histogram | |
760 | * | |
761 | * @return Trigger histogram | |
762 | */ | |
ffca499d | 763 | const TH1I* GetTriggers() const { return fTriggers; } |
e1f47419 | 764 | /** |
765 | * Get trigger histogram | |
766 | * | |
767 | * @return Trigger histogram | |
768 | */ | |
ffca499d | 769 | TH1I* GetTrigggers() { return fTriggers; } |
e1f47419 | 770 | /** @} */ |
5bb5d1f6 | 771 | |
9ecab72f | 772 | /** |
773 | * Get the color of the markers | |
774 | * | |
290052e7 | 775 | * @param fallback Fall-back color |
776 | * | |
777 | * @return Color for this centrality bin | |
9ecab72f | 778 | */ |
779 | Int_t GetColor(Int_t fallback=kRed+2) const; | |
780 | /** | |
781 | * Get list of results | |
782 | * | |
783 | * | |
290052e7 | 784 | * @return List of results |
9ecab72f | 785 | */ |
5bb5d1f6 | 786 | TList* GetResults() const { return fOutput; } |
9ecab72f | 787 | /** |
788 | * Get name of result histogram | |
789 | * | |
790 | * @param rebin | |
791 | * @param sym | |
792 | * @param postfix | |
793 | * | |
794 | * @return | |
795 | */ | |
5bb5d1f6 | 796 | const char* GetResultName(Int_t rebin, Bool_t sym, |
797 | const char* postfix="") const; | |
9ecab72f | 798 | /** |
799 | * Get a result | |
800 | * | |
801 | * @param rebin | |
802 | * @param sym | |
803 | * @param postfix | |
804 | * | |
805 | * @return | |
806 | */ | |
5bb5d1f6 | 807 | TH1* GetResult(Int_t rebin, Bool_t sym, |
808 | const char* postfix="") const; | |
290052e7 | 809 | /** |
810 | * Set the debug level | |
811 | * | |
812 | * @param lvl Debug level | |
813 | */ | |
f53fb4f6 | 814 | void SetDebugLevel(Int_t lvl); |
e1f47419 | 815 | protected: |
290052e7 | 816 | /** |
817 | * Read in sum hisotgram from list | |
818 | * | |
819 | * @param list List to read from | |
820 | * @param mc True for MC input | |
821 | * | |
822 | * @return true if sum histogram is found | |
823 | */ | |
f67d699c | 824 | virtual Bool_t ReadSum(TList* list, bool mc=false); |
e1f47419 | 825 | /** |
826 | * Create sum histogram | |
827 | * | |
828 | * @param data Data histogram to clone | |
829 | * @param mc (optional) MC histogram to clone | |
830 | */ | |
831 | virtual void CreateSums(const TH2D* data, const TH2D* mc); | |
832 | /** | |
833 | * Check the trigger, vertex, and centrality | |
834 | * | |
ffca499d | 835 | * @param forward Event input |
836 | * @param triggerMask The used trigger mask | |
837 | * @param vzMin Least @f$ v_z@f$ | |
838 | * @param vzMax Largest @f$ v_z@f$ | |
e1f47419 | 839 | * |
840 | * @return true if the event is to be used | |
841 | */ | |
842 | virtual Bool_t CheckEvent(const AliAODForwardMult* forward, | |
ffca499d | 843 | Int_t triggerMask, |
844 | Double_t vzMin, | |
845 | Double_t vzMax); | |
e1f47419 | 846 | TList* fSums; // Output list |
847 | TList* fOutput; // Output list | |
4fa8d795 | 848 | Sum* fSum; // Sum histogram |
849 | Sum* fSumMC; // MC sum histogram | |
ffca499d | 850 | TH1I* fTriggers; // Trigger histogram |
e1f47419 | 851 | UShort_t fLow; // Lower limit (inclusive) |
852 | UShort_t fHigh; // Upper limit (exclusive) | |
c89b9ac1 | 853 | Bool_t fDoFinalMCCorrection; //Do final MC correction |
f53fb4f6 | 854 | Int_t fDebug; // Debug level |
855 | ||
856 | ClassDef(CentralityBin,2); // A centrality bin | |
e1f47419 | 857 | }; |
ce85db45 | 858 | TList* fSums; // Container of sums |
859 | TList* fOutput; // Container of outputs | |
ce85db45 | 860 | Double_t fVtxMin; // Minimum v_z |
861 | Double_t fVtxMax; // Maximum v_z | |
862 | Int_t fTriggerMask; // Trigger mask | |
863 | Int_t fRebin; // Rebinning factor | |
864 | Bool_t fCutEdges; // Whether to cut edges when rebinning | |
865 | Bool_t fSymmetrice; // Whether to symmetrice data | |
866 | Bool_t fCorrEmpty; // Correct for empty bins | |
c25b5e1b | 867 | Bool_t fUseROOTProj; // Whether to use ROOT's ProjectionX |
e58000b7 | 868 | Double_t fTriggerEff; // Trigger efficiency for selected trigger(s) |
66cf95f2 | 869 | Double_t fTriggerEff0; // Bin-0 Trigger efficiency for sel trigger(s) |
f67d699c | 870 | TH2F* fShapeCorr; // Shape correction |
e308a636 | 871 | TObjArray* fListOfCentralities; // Centrality bins |
66cf95f2 | 872 | TObject* fSNNString; // sqrt(s_NN) string |
873 | TObject* fSysString; // Collision system string | |
e1f47419 | 874 | TH1D* fCent; // Centrality distribution |
e308a636 | 875 | TAxis* fCentAxis; // Centrality axis |
ffca499d | 876 | UShort_t fNormalizationScheme; // Normalization scheme |
241cca4d | 877 | TObject* fSchemeString; // Normalization scheme string |
878 | TObject* fTriggerString; // Trigger string | |
c89b9ac1 | 879 | TString fFinalMCCorrFile; //Filename for final MC corr |
880 | ||
66cf95f2 | 881 | ClassDef(AliBasedNdetaTask,9); // Determine charged particle density |
ce85db45 | 882 | }; |
883 | ||
884 | #endif | |
885 | // | |
886 | // Local Variables: | |
887 | // mode: C++ | |
888 | // End: | |
889 | // |