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8498bdf5 1//
2// Configuration for the first physics production 2008
3//
4
5// One can use the configuration macro in compiled mode by
6// root [0] gSystem->Load("libgeant321");
7// root [0] gSystem->SetIncludePath("-I$ROOTSYS/include -I$ALICE_ROOT/include\
8// -I$ALICE_ROOT -I$ALICE/geant3/TGeant3");
9// root [0] .x grun.C(1,"Config.C++")
10
11#if !defined(__CINT__) || defined(__MAKECINT__)
12#include <Riostream.h>
13#include <TRandom.h>
14#include <TDatime.h>
15#include <TSystem.h>
16#include <TVirtualMC.h>
17#include <TGeant3TGeo.h>
18#include "STEER/AliRunLoader.h"
19#include "STEER/AliRun.h"
20#include "STEER/AliConfig.h"
21#include "PYTHIA6/AliDecayerPythia.h"
22#include "PYTHIA6/AliGenPythia.h"
23#include "TDPMjet/AliGenDPMjet.h"
f7a1cc68 24#include "STEER/AliMagF.h"
8498bdf5 25#include "STRUCT/AliBODY.h"
26#include "STRUCT/AliMAG.h"
27#include "STRUCT/AliABSOv3.h"
28#include "STRUCT/AliDIPOv3.h"
29#include "STRUCT/AliHALLv3.h"
30#include "STRUCT/AliFRAMEv2.h"
31#include "STRUCT/AliSHILv3.h"
32#include "STRUCT/AliPIPEv3.h"
33#include "ITS/AliITSv11Hybrid.h"
34#include "TPC/AliTPCv2.h"
35#include "TOF/AliTOFv6T0.h"
36#include "HMPID/AliHMPIDv3.h"
37#include "ZDC/AliZDCv3.h"
38#include "TRD/AliTRDv1.h"
39#include "TRD/AliTRDgeometry.h"
40#include "FMD/AliFMDv1.h"
41#include "MUON/AliMUONv1.h"
42#include "PHOS/AliPHOSv1.h"
43#include "PHOS/AliPHOSSimParam.h"
44#include "PMD/AliPMDv1.h"
45#include "T0/AliT0v1.h"
46#include "EMCAL/AliEMCALv2.h"
47#include "ACORDE/AliACORDEv1.h"
48#include "VZERO/AliVZEROv7.h"
49#endif
50
51
52enum PDC06Proc_t
53{
54 kPythia6, kPhojet, kRunMax
55};
56
57const char * pprRunName[] = {
58 "kPythia6", "kPhojet"
59};
60
8498bdf5 61const char * pprField[] = {
62 "kNoField", "k5kG"
63};
64
65//--- Functions ---
66class AliGenPythia;
67AliGenerator *MbPythia();
68AliGenerator *MbPhojet();
69void ProcessEnvironmentVars();
70
71// Geterator, field, beam energy
72static PDC06Proc_t proc = kPhojet;
f7a1cc68 73static AliMagF::BMap_t mag = AliMagF::k5kG;
8498bdf5 74static Float_t energy = 10000; // energy in CMS
75//========================//
76// Set Random Number seed //
77//========================//
78TDatime dt;
79static UInt_t seed = dt.Get();
80
81// Comment line
82static TString comment;
83
84void Config()
85{
86
87
88 // Get settings from environment variables
89 ProcessEnvironmentVars();
90
91 gRandom->SetSeed(seed);
92 cerr<<"Seed for random number generation= "<<seed<<endl;
93
94 // Libraries required by geant321
95#if defined(__CINT__)
96 gSystem->Load("liblhapdf"); // Parton density functions
97 gSystem->Load("libEGPythia6"); // TGenerator interface
98 gSystem->Load("libpythia6"); // Pythia
99 gSystem->Load("libAliPythia6"); // ALICE specific implementations
100 gSystem->Load("libgeant321");
101#endif
102
103 new TGeant3TGeo("C++ Interface to Geant3");
104
105 //=======================================================================
106 // Create the output file
107
108
109 AliRunLoader* rl=0x0;
110
111 cout<<"Config.C: Creating Run Loader ..."<<endl;
112 rl = AliRunLoader::Open("galice.root",
113 AliConfig::GetDefaultEventFolderName(),
114 "recreate");
115 if (rl == 0x0)
116 {
117 gAlice->Fatal("Config.C","Can not instatiate the Run Loader");
118 return;
119 }
120 rl->SetCompressionLevel(2);
121 rl->SetNumberOfEventsPerFile(1000);
122 gAlice->SetRunLoader(rl);
123 // gAlice->SetGeometryFromFile("geometry.root");
124 // gAlice->SetGeometryFromCDB();
125
126 // Set the trigger configuration: proton-proton
127 gAlice->SetTriggerDescriptor("p-p");
128
129 //
130 //=======================================================================
131 // ************* STEERING parameters FOR ALICE SIMULATION **************
132 // --- Specify event type to be tracked through the ALICE setup
133 // --- All positions are in cm, angles in degrees, and P and E in GeV
134
135
136 gMC->SetProcess("DCAY",1);
137 gMC->SetProcess("PAIR",1);
138 gMC->SetProcess("COMP",1);
139 gMC->SetProcess("PHOT",1);
140 gMC->SetProcess("PFIS",0);
141 gMC->SetProcess("DRAY",0);
142 gMC->SetProcess("ANNI",1);
143 gMC->SetProcess("BREM",1);
144 gMC->SetProcess("MUNU",1);
145 gMC->SetProcess("CKOV",1);
146 gMC->SetProcess("HADR",1);
147 gMC->SetProcess("LOSS",2);
148 gMC->SetProcess("MULS",1);
149 gMC->SetProcess("RAYL",1);
150
151 Float_t cut = 1.e-3; // 1MeV cut by default
152 Float_t tofmax = 1.e10;
153
154 gMC->SetCut("CUTGAM", cut);
155 gMC->SetCut("CUTELE", cut);
156 gMC->SetCut("CUTNEU", cut);
157 gMC->SetCut("CUTHAD", cut);
158 gMC->SetCut("CUTMUO", cut);
159 gMC->SetCut("BCUTE", cut);
160 gMC->SetCut("BCUTM", cut);
161 gMC->SetCut("DCUTE", cut);
162 gMC->SetCut("DCUTM", cut);
163 gMC->SetCut("PPCUTM", cut);
164 gMC->SetCut("TOFMAX", tofmax);
165
166
167
168
169 //======================//
170 // Set External decayer //
171 //======================//
172 TVirtualMCDecayer* decayer = new AliDecayerPythia();
173 decayer->SetForceDecay(kAll);
174 decayer->Init();
175 gMC->SetExternalDecayer(decayer);
176
177 //=========================//
178 // Generator Configuration //
179 //=========================//
180 // Create pileup generator
181 AliGenPileup *pileup = new AliGenPileup();
182
183 AliGenerator* gener = 0x0;
184
185 if (proc == kPythia6) {
186 gener = MbPythia();
187 } else if (proc == kPhojet) {
188 gener = MbPhojet();
189 }
190
191 // Set the pileup interaction generator
192 // The second argument is the pileup rate
193 // in terms of event rate per bunch crossing
194 pileup->SetGenerator(gener,0.01);
195 // Set the beam time structure
196 // Details on the syntax in STEER/AliTriggerBCMask
197 pileup->SetBCMask("72(1H1L)3420L");
198 // Examples of the pileup rate and beam structure settings
199 // Most of the information is taken from the LHC commissionning page
200 // rate from 0.01 (at 900GeV) to 0.76 (at 14TeV)
201 // 1 bunch/orbit - bc-mask = "1H3563L"
202 // 43 bunches/orbit - bc-mask = "43(1H80L)81L"
203 // 72 bunches/orbit - bc-mask = "72(1H1L)3420L" (50ns mode)
204 // Please note that most of these setting should be cross-checked because
205 // for example the 43 bunches mode is taken at CMS IP and not the ALICE one.
206
207 // Generate the trigger interaction
208 pileup->GenerateTrigInteraction(kTRUE);
209
210 // PRIMARY VERTEX
211 //
212 pileup->SetOrigin(0., 0., 0.); // vertex position
213 //
214 //
215 // Size of the interaction diamond
216 // Longitudinal
217 Float_t sigmaz = 5.4 / TMath::Sqrt(2.); // [cm]
218 if (energy == 900)
219 sigmaz = 10.5 / TMath::Sqrt(2.); // [cm]
220 //
221 // Transverse
222 Float_t betast = 10; // beta* [m]
223 Float_t eps = 3.75e-6; // emittance [m]
224 Float_t gamma = energy / 2.0 / 0.938272; // relativistic gamma [1]
225 Float_t sigmaxy = TMath::Sqrt(eps * betast / gamma) / TMath::Sqrt(2.) * 100.; // [cm]
226 printf("\n \n Diamond size x-y: %10.3e z: %10.3e\n \n", sigmaxy, sigmaz);
227
228 pileup->SetSigma(sigmaxy, sigmaxy, sigmaz); // Sigma in (X,Y,Z) (cm) on IP position
229 pileup->SetCutVertexZ(3.); // Truncate at 3 sigma
230 pileup->SetVertexSmear(kPerEvent);
231
232 pileup->Init();
233
234 // FIELD
235 //
f7a1cc68 236 AliMagF* field = 0x0;
8498bdf5 237 if (mag == kNoField) {
238 comment = comment.Append(" | L3 field 0.0 T");
f7a1cc68 239 field = new AliMagF("Maps","Maps", 2, 0., 0., 10., AliMagF::k2kG);
240 } else if (mag == AliMagF::k5kG) {
8498bdf5 241 comment = comment.Append(" | L3 field 0.5 T");
f7a1cc68 242 field = new AliMagF("Maps","Maps", 2, 1., 1., 10., AliMagF::k5kG);
8498bdf5 243 }
244 printf("\n \n Comment: %s \n \n", comment.Data());
f7a1cc68 245 TGeoGlobalMagField::Instance()->SetField(field);
8498bdf5 246
247 rl->CdGAFile();
8498bdf5 248
249 Int_t iABSO = 1;
250 Int_t iACORDE= 0;
251 Int_t iDIPO = 1;
252 Int_t iEMCAL = 0;
253 Int_t iFMD = 1;
254 Int_t iFRAME = 1;
255 Int_t iHALL = 1;
256 Int_t iITS = 1;
257 Int_t iMAG = 1;
258 Int_t iMUON = 1;
259 Int_t iPHOS = 1;
260 Int_t iPIPE = 1;
261 Int_t iPMD = 0;
262 Int_t iHMPID = 1;
263 Int_t iSHIL = 1;
264 Int_t iT0 = 1;
265 Int_t iTOF = 1;
266 Int_t iTPC = 1;
267 Int_t iTRD = 1;
268 Int_t iVZERO = 1;
269 Int_t iZDC = 1;
270
271
272 //=================== Alice BODY parameters =============================
273 AliBODY *BODY = new AliBODY("BODY", "Alice envelop");
274
275
276 if (iMAG)
277 {
278 //=================== MAG parameters ============================
279 // --- Start with Magnet since detector layouts may be depending ---
280 // --- on the selected Magnet dimensions ---
281 AliMAG *MAG = new AliMAG("MAG", "Magnet");
282 }
283
284
285 if (iABSO)
286 {
287 //=================== ABSO parameters ============================
288 AliABSO *ABSO = new AliABSOv3("ABSO", "Muon Absorber");
289 }
290
291 if (iDIPO)
292 {
293 //=================== DIPO parameters ============================
294
295 AliDIPO *DIPO = new AliDIPOv3("DIPO", "Dipole version 3");
296 }
297
298 if (iHALL)
299 {
300 //=================== HALL parameters ============================
301
302 AliHALL *HALL = new AliHALLv3("HALL", "Alice Hall");
303 }
304
305
306 if (iFRAME)
307 {
308 //=================== FRAME parameters ============================
309
310 AliFRAMEv2 *FRAME = new AliFRAMEv2("FRAME", "Space Frame");
311 FRAME->SetHoles(1);
312 }
313
314 if (iSHIL)
315 {
316 //=================== SHIL parameters ============================
317
318 AliSHIL *SHIL = new AliSHILv3("SHIL", "Shielding Version 3");
319 }
320
321
322 if (iPIPE)
323 {
324 //=================== PIPE parameters ============================
325
326 AliPIPE *PIPE = new AliPIPEv3("PIPE", "Beam Pipe");
327 }
328
329 if (iITS)
330 {
331 //=================== ITS parameters ============================
332
333 AliITS *ITS = new AliITSv11Hybrid("ITS","ITS v11Hybrid");
334 }
335
336 if (iTPC)
337 {
338 //============================ TPC parameters =====================
339
340 AliTPC *TPC = new AliTPCv2("TPC", "Default");
341 }
342
343
344 if (iTOF) {
345 //=================== TOF parameters ============================
346
347 AliTOF *TOF = new AliTOFv6T0("TOF", "normal TOF");
348 }
349
350
351 if (iHMPID)
352 {
353 //=================== HMPID parameters ===========================
354
355 AliHMPID *HMPID = new AliHMPIDv3("HMPID", "normal HMPID");
356
357 }
358
359
360 if (iZDC)
361 {
362 //=================== ZDC parameters ============================
363
364 AliZDC *ZDC = new AliZDCv3("ZDC", "normal ZDC");
365 }
366
367 if (iTRD)
368 {
369 //=================== TRD parameters ============================
370
371 AliTRD *TRD = new AliTRDv1("TRD", "TRD slow simulator");
372 AliTRDgeometry *geoTRD = TRD->GetGeometry();
373 // Partial geometry: modules at 0,8,9,17
374 // starting at 3h in positive direction
375 geoTRD->SetSMstatus(1,0);
376 geoTRD->SetSMstatus(2,0);
377 geoTRD->SetSMstatus(3,0);
378 geoTRD->SetSMstatus(4,0);
379 geoTRD->SetSMstatus(5,0);
380 geoTRD->SetSMstatus(6,0);
381 geoTRD->SetSMstatus(7,0);
382 geoTRD->SetSMstatus(10,0);
383 geoTRD->SetSMstatus(11,0);
384 geoTRD->SetSMstatus(12,0);
385 geoTRD->SetSMstatus(13,0);
386 geoTRD->SetSMstatus(14,0);
387 geoTRD->SetSMstatus(15,0);
388 geoTRD->SetSMstatus(16,0);
389 }
390
391 if (iFMD)
392 {
393 //=================== FMD parameters ============================
394
395 AliFMD *FMD = new AliFMDv1("FMD", "normal FMD");
396 }
397
398 if (iMUON)
399 {
400 //=================== MUON parameters ===========================
401 // New MUONv1 version (geometry defined via builders)
402
403 AliMUON *MUON = new AliMUONv1("MUON", "default");
404 }
405
406 if (iPHOS)
407 {
408 //=================== PHOS parameters ===========================
409
410 AliPHOS *PHOS = new AliPHOSv1("PHOS", "IHEP");
411 //Set simulation parameters different from the default ones.
412 AliPHOSSimParam* simEmc = AliPHOSSimParam::GetInstance() ;
413
414 // APD noise of warm (+20C) PHOS:
415 // a2 = a1*(Y1/Y2)*(M1/M2), where a1 = 0.012 is APD noise at -25C,
416 // Y1 = 4.3 photo-electrons/MeV, Y2 = 1.7 p.e/MeV - light yields at -25C and +20C,
417 // M1 = 50, M2 = 50 - APD gain factors chosen for t1 = -25C and t2 = +20C,
418 // Y = MeanLightYield*APDEfficiency.
419
420 Float_t apdNoise = 0.012*2.5;
421 simEmc->SetAPDNoise(apdNoise);
422
423 //Raw Light Yield at +20C
424 simEmc->SetMeanLightYield(18800);
425
426 //ADC channel width at +18C.
427 simEmc->SetADCchannelW(0.0125);
428 }
429
430
431 if (iPMD)
432 {
433 //=================== PMD parameters ============================
434
435 AliPMD *PMD = new AliPMDv1("PMD", "normal PMD");
436 }
437
438 if (iT0)
439 {
440 //=================== T0 parameters ============================
441 AliT0 *T0 = new AliT0v1("T0", "T0 Detector");
442 }
443
444 if (iEMCAL)
445 {
446 //=================== EMCAL parameters ============================
447
448 AliEMCAL *EMCAL = new AliEMCALv2("EMCAL", "EMCAL_COMPLETE");
449 }
450
451 if (iACORDE)
452 {
453 //=================== ACORDE parameters ============================
454
455 AliACORDE *ACORDE = new AliACORDEv1("ACORDE", "normal ACORDE");
456 }
457
458 if (iVZERO)
459 {
460 //=================== ACORDE parameters ============================
461
462 AliVZERO *VZERO = new AliVZEROv7("VZERO", "normal VZERO");
463 }
464}
465//
466// PYTHIA
467//
468
469AliGenerator* MbPythia()
470{
471 comment = comment.Append(" pp at 14 TeV: Pythia low-pt");
472//
473// Pythia
474 AliGenPythia* pythia = new AliGenPythia(-1);
475 pythia->SetMomentumRange(0, 999999.);
476 pythia->SetThetaRange(0., 180.);
477 pythia->SetYRange(-12.,12.);
478 pythia->SetPtRange(0,1000.);
479 pythia->SetProcess(kPyMb);
480 pythia->SetEnergyCMS(energy);
481
482 return pythia;
483}
484
485AliGenerator* MbPhojet()
486{
487 comment = comment.Append(" pp at 14 TeV: Pythia low-pt");
488//
489// DPMJET
490#if defined(__CINT__)
491 gSystem->Load("libdpmjet"); // Parton density functions
492 gSystem->Load("libTDPMjet"); // Parton density functions
493#endif
494 AliGenDPMjet* dpmjet = new AliGenDPMjet(-1);
495 dpmjet->SetMomentumRange(0, 999999.);
496 dpmjet->SetThetaRange(0., 180.);
497 dpmjet->SetYRange(-12.,12.);
498 dpmjet->SetPtRange(0,1000.);
499 dpmjet->SetProcess(kDpmMb);
500 dpmjet->SetEnergyCMS(energy);
501
502 return dpmjet;
503}
504
505void ProcessEnvironmentVars()
506{
507 // Run type
508 if (gSystem->Getenv("CONFIG_RUN_TYPE")) {
509 for (Int_t iRun = 0; iRun < kRunMax; iRun++) {
510 if (strcmp(gSystem->Getenv("CONFIG_RUN_TYPE"), pprRunName[iRun])==0) {
511 proc = (PDC06Proc_t)iRun;
512 cout<<"Run type set to "<<pprRunName[iRun]<<endl;
513 }
514 }
515 }
516
517 // Field
518 if (gSystem->Getenv("CONFIG_FIELD")) {
519 for (Int_t iField = 0; iField < kFieldMax; iField++) {
520 if (strcmp(gSystem->Getenv("CONFIG_FIELD"), pprField[iField])==0) {
521 mag = (Mag_t)iField;
522 cout<<"Field set to "<<pprField[iField]<<endl;
523 }
524 }
525 }
526
527 // Energy
528 if (gSystem->Getenv("CONFIG_ENERGY")) {
529 energy = atoi(gSystem->Getenv("CONFIG_ENERGY"));
530 cout<<"Energy set to "<<energy<<" GeV"<<endl;
531 }
532
533 // Random Number seed
534 if (gSystem->Getenv("CONFIG_SEED")) {
535 seed = atoi(gSystem->Getenv("CONFIG_SEED"));
536 }
537}