1 //*******************************************************************//
2 // Configuration file for charm / beauty generation with PYTHIA //
4 // The parameters have been tuned in order to reproduce the inclusive//
5 // heavy quark pt distribution given by the NLO pQCD calculation by //
6 // Mangano, Nason and Ridolfi. //
8 // For details and for the NORMALIZATION of the yields see: //
9 // N.Carrer and A.Dainese, //
10 // "Charm and beauty production at the LHC", //
11 // ALICE-INT-2003-019, [arXiv:hep-ph/0311225]; //
12 // PPR Chapter 6.6, CERN/LHCC 2005-030 (2005). //
13 //*******************************************************************//
14 #if !defined(__CINT__) || defined(__MAKECINT__)
15 #include <Riostream.h>
19 #include <TVirtualMC.h>
20 #include <TGeant3TGeo.h>
21 #include "STEER/AliRunLoader.h"
22 #include "STEER/AliRun.h"
23 #include "STEER/AliConfig.h"
24 #include "PYTHIA6/AliDecayerPythia.h"
25 #include "PYTHIA6/AliGenPythia.h"
26 #include "STEER/AliMagFMaps.h"
27 #include "STRUCT/AliBODY.h"
28 #include "STRUCT/AliMAG.h"
29 #include "STRUCT/AliABSOv3.h"
30 #include "STRUCT/AliDIPOv3.h"
31 #include "STRUCT/AliHALLv3.h"
32 #include "STRUCT/AliFRAMEv2.h"
33 #include "STRUCT/AliSHILv3.h"
34 #include "STRUCT/AliPIPEv3.h"
35 #include "ITS/AliITSvPPRasymmFMD.h"
36 #include "TPC/AliTPCv2.h"
37 #include "TOF/AliTOFv6T0.h"
38 #include "HMPID/AliHMPIDv2.h"
39 #include "ZDC/AliZDCv1.h"
40 #include "TRD/AliTRDv1.h"
41 #include "FMD/AliFMDv0.h"
42 #include "MUON/AliMUONv1.h"
43 #include "PHOS/AliPHOSv1.h"
44 #include "PMD/AliPMDv1.h"
45 #include "T0/AliT0v1.h"
46 #include "ACORDE/AliACORDEv1.h"
49 //--- Heavy Flavour Production ---
52 kCharmPbPb5500, kCharmpPb8800, kCharmpp14000, kCharmpp14000wmi,
53 kD0PbPb5500, kD0pPb8800, kD0pp14000,
54 kDPlusPbPb5500, kDPluspPb8800, kDPluspp14000,
55 kDPlusStrangePbPb5500, kDPlusStrangepPb8800, kDPlusStrangepp14000,
56 kBeautyPbPb5500, kBeautypPb8800, kBeautypp14000, kBeautypp14000wmi
61 kNature, kHadr, kSemiEl, kSemiMu
63 //--- Rapidity Cut ---
66 kFull, kBarrel, kMuonArm
68 //--- Magnetic Field ---
73 //--- Trigger config ---
76 kDefaultPPTrig, kDefaultPbPbTrig
78 const char * TrigConfName[] = {
82 AliGenPythia *PythiaHVQ(ProcessHvFl_t proc);
85 // This part for configuration
86 static ProcessHvFl_t procHvFl = kCharmPbPb5500;
87 static DecayHvFl_t decHvFl = kNature;
88 static YCut_t ycut = kFull;
89 static Mag_t mag = k5kG;
90 static TrigConf_t trig = kDefaultPbPbTrig; // default PbPb trigger configuration
91 // nEvts = -1 : you get 1 QQbar pair and all the fragmentation and
93 // nEvts = N>0 : you get N charm / beauty Hadrons
95 // stars = kTRUE : all heavy resonances and their decay stored
96 // = kFALSE: only final heavy hadrons and their decays stored
99 // To be used only with kCharmppMNRwmi and kBeautyppMNRwmi
100 // To get a "reasonable" agreement with MNR results, events have to be
101 // generated with the minimum ptHard set to 2.76 GeV.
102 // To get a "perfect" agreement with MNR results, events have to be
103 // generated in four ptHard bins with the following relative
115 Float_t ptHardMin = 2.76;
116 Float_t ptHardMax = -1.;
120 static TString comment;
125 //========================//
126 // Set Random Number seed //
127 //========================//
129 UInt_t curtime=dt.Get();
130 UInt_t procid=gSystem->GetPid();
131 UInt_t seed=curtime-procid;
133 // gRandom->SetSeed(seed);
134 // cerr<<"Seed for random number generation= "<<seed<<endl;
135 gRandom->SetSeed(12345);
138 // libraries required by geant321
139 #if defined(__CINT__)
140 gSystem->Load("libgeant321");
143 new TGeant3TGeo("C++ Interface to Geant3");
145 if(!AliCDBManager::Instance()->IsDefaultStorageSet()){
146 AliCDBManager::Instance()->SetDefaultStorage("local://$ALICE_ROOT");
147 AliCDBManager::Instance()->SetRun(0);
150 //=======================================================================
151 // Create the output file
154 AliRunLoader* rl=0x0;
156 cout<<"Config.C: Creating Run Loader ..."<<endl;
157 rl = AliRunLoader::Open("galice.root",
158 AliConfig::GetDefaultEventFolderName(),
162 gAlice->Fatal("Config.C","Can not instatiate the Run Loader");
165 rl->SetCompressionLevel(2);
166 rl->SetNumberOfEventsPerFile(3);
167 gAlice->SetRunLoader(rl);
168 // gAlice->SetGeometryFromFile("geometry.root");
169 // gAlice->SetGeometryFromCDB();
171 // Set the trigger configuration
172 gAlice->SetTriggerDescriptor(TrigConfName[trig]);
173 cout<<"Trigger configuration is set to "<<TrigConfName[trig]<<endl;
176 //=======================================================================
177 // ************* STEERING parameters FOR ALICE SIMULATION **************
178 // --- Specify event type to be tracked through the ALICE setup
179 // --- All positions are in cm, angles in degrees, and P and E in GeV
182 gMC->SetProcess("DCAY",1);
183 gMC->SetProcess("PAIR",1);
184 gMC->SetProcess("COMP",1);
185 gMC->SetProcess("PHOT",1);
186 gMC->SetProcess("PFIS",0);
187 gMC->SetProcess("DRAY",0);
188 gMC->SetProcess("ANNI",1);
189 gMC->SetProcess("BREM",1);
190 gMC->SetProcess("MUNU",1);
191 gMC->SetProcess("CKOV",1);
192 gMC->SetProcess("HADR",1);
193 gMC->SetProcess("LOSS",2);
194 gMC->SetProcess("MULS",1);
195 gMC->SetProcess("RAYL",1);
197 Float_t cut = 1.e-3; // 1MeV cut by default
198 Float_t tofmax = 1.e10;
200 gMC->SetCut("CUTGAM", cut);
201 gMC->SetCut("CUTELE", cut);
202 gMC->SetCut("CUTNEU", cut);
203 gMC->SetCut("CUTHAD", cut);
204 gMC->SetCut("CUTMUO", cut);
205 gMC->SetCut("BCUTE", cut);
206 gMC->SetCut("BCUTM", cut);
207 gMC->SetCut("DCUTE", cut);
208 gMC->SetCut("DCUTM", cut);
209 gMC->SetCut("PPCUTM", cut);
210 gMC->SetCut("TOFMAX", tofmax);
215 // Set External decayer //
216 //======================//
217 TVirtualMCDecayer* decayer = new AliDecayerPythia();
222 decayer->SetForceDecay(kAll);
225 decayer->SetForceDecay(kHadronicD);
228 decayer->SetForceDecay(kSemiElectronic);
231 decayer->SetForceDecay(kSemiMuonic);
235 gMC->SetExternalDecayer(decayer);
237 //=========================//
238 // Generator Configuration //
239 //=========================//
240 AliGenPythia *pythia = PythiaHVQ(procHvFl);
242 pythia->SetFeedDownHigherFamily(kFALSE);
243 // Stack filling option
244 if(!stars) pythia->SetStackFillOpt(AliGenPythia::kParentSelection);
246 if(nEvts>0) pythia->SetCountMode(AliGenPythia::kCountParents);
251 pythia->SetForceDecay(kAll);
254 pythia->SetForceDecay(kHadronicD);
257 pythia->SetForceDecay(kSemiElectronic);
260 pythia->SetForceDecay(kSemiMuonic);
265 pythia->SetMomentumRange(0,99999999);
266 pythia->SetPhiRange(0., 360.);
267 pythia->SetThetaRange(0,180);
270 pythia->SetYRange(-999,999);
273 pythia->SetYRange(-2,2);
276 pythia->SetYRange(1,6);
282 pythia->SetOrigin(0, 0, 0); // vertex position
283 pythia->SetSigma(0, 0, 5.3); // Sigma in (X,Y,Z) (cm) on IP position
284 pythia->SetCutVertexZ(1.); // Truncate at 1 sigma
285 pythia->SetVertexSmear(kPerEvent);
289 pythia->SetTrackingFlag(0);
290 // Specify GEANT tracking limits (Rmax, Zmax)
291 //gAlice->GetMCApp()->TrackingLimits(90.,1.0e10);
299 comment = comment.Append(" | L3 field 0.2 T");
300 } else if (mag == k4kG) {
301 comment = comment.Append(" | L3 field 0.4 T");
302 } else if (mag == k5kG) {
303 comment = comment.Append(" | L3 field 0.5 T");
305 printf("\n \n Comment: %s \n \n", comment.Data());
307 AliMagFMaps* field = new AliMagFMaps("Maps","Maps", 2, 1., 10., mag);
308 field->SetL3ConstField(0); //Using const. field in the barrel
310 gAlice->SetField(field);
313 // By default all ALICE is switched off
334 //=================== Alice BODY parameters =============================
335 AliBODY *BODY = new AliBODY("BODY","Alice envelop");
338 //=================== MAG parameters ============================
339 // --- Start with Magnet since detector layouts may be depending ---
340 // --- on the selected Magnet dimensions ---
341 AliMAG *MAG = new AliMAG("MAG","Magnet");
346 //=================== ABSO parameters ============================
347 AliABSO *ABSO = new AliABSOv3("ABSO","Muon Absorber");
351 //=================== DIPO parameters ============================
353 AliDIPO *DIPO = new AliDIPOv3("DIPO","Dipole version 3");
357 //=================== HALL parameters ============================
359 AliHALL *HALL = new AliHALLv3("HALL","Alice Hall");
364 //=================== FRAME parameters ============================
366 AliFRAME *FRAME = new AliFRAMEv2("FRAME","Space Frame");
371 //=================== SHIL parameters ============================
373 AliSHIL *SHIL = new AliSHILv3("SHIL","Shielding");
378 //=================== PIPE parameters ============================
380 AliPIPE *PIPE = new AliPIPEv3("PIPE","Beam Pipe");
385 //=================== ITS parameters ============================
387 AliITSvPPRasymmFMD *ITS = new AliITSvPPRasymmFMD("ITS","New ITS PPR detailed version with asymmetric services");
392 //============================ TPC parameters ===================
393 AliTPC *TPC = new AliTPCv2("TPC","Default");
398 //=================== TOF parameters ============================
399 AliTOF *TOF = new AliTOFv6T0("TOF","normal TOF");
403 //=================== HMPID parameters ===========================
404 AliHMPID *HMPID = new AliHMPIDv2("HMPID","normal HMPID");
410 //=================== ZDC parameters ============================
412 AliZDC *ZDC = new AliZDCv1("ZDC","normal ZDC");
416 //=================== ACORDE parameters ============================
418 AliACORDE *ACORDE = new AliACORDEv1("ACORDE","normal ACORDE");
422 //=================== TRD parameters ============================
424 AliTRD *TRD = new AliTRDv1("TRD","TRD slow simulator");
428 //=================== FMD parameters ============================
430 AliFMD *FMD = new AliFMDv0("FMD","normal FMD");
434 //=================== MUON parameters ===========================
435 AliMUON *MUON = new AliMUONv1("MUON","default");
438 //=================== PHOS parameters ===========================
441 AliPHOS *PHOS = new AliPHOSv1("PHOS","GPS2");
445 //=================== ACORDE parameters ===========================
448 AliACORDE *ACORDE = new AliACORDEv1("ACORDE","Normal ACORDEGPS2");
453 //=================== PMD parameters ============================
455 AliPMD *PMD = new AliPMDv1("PMD","normal PMD");
456 PMD->SetPAR(1., 1., 0.8, 0.02);
457 PMD->SetIN(6., 18., -580., 27., 27.);
458 PMD->SetGEO(0.0, 0.2, 4.);
459 PMD->SetPadSize(0.8, 1.0, 1.0, 1.5);
464 //=================== T0 parameters ============================
465 AliT0 *T0 = new AliT0v1("T0","T0 Detector");
473 AliGenPythia *PythiaHVQ(ProcessHvFl_t proc) {
475 AliGenPythia * gener = 0x0;
479 comment = comment.Append(" Charm in Pb-Pb at 5.5 TeV");
480 gener = new AliGenPythia(nEvts);
481 gener->SetProcess(kPyCharmPbPbMNR);
482 gener->SetStrucFunc(kCTEQ4L);
483 gener->SetPtHard(2.1,-1.0);
484 gener->SetEnergyCMS(5500.);
485 gener->SetNuclei(208,208);
488 comment = comment.Append(" Charm in p-Pb at 8.8 TeV");
489 gener = new AliGenPythia(nEvts);
490 gener->SetProcess(kPyCharmpPbMNR);
491 gener->SetStrucFunc(kCTEQ4L);
492 gener->SetPtHard(2.1,-1.0);
493 gener->SetEnergyCMS(8800.);
494 gener->SetProjectile("P",1,1);
495 gener->SetTarget("Pb",208,82);
498 comment = comment.Append(" Charm in pp at 14 TeV");
499 gener = new AliGenPythia(nEvts);
500 gener->SetProcess(kPyCharmppMNR);
501 gener->SetStrucFunc(kCTEQ4L);
502 gener->SetPtHard(2.1,-1.0);
503 gener->SetEnergyCMS(14000.);
505 case kCharmpp14000wmi:
506 comment = comment.Append(" Charm in pp at 14 TeV with mult. interactions");
507 gener = new AliGenPythia(-1);
508 gener->SetProcess(kPyCharmppMNRwmi);
509 gener->SetStrucFunc(kCTEQ5L);
510 gener->SetPtHard(ptHardMin,ptHardMax);
511 gener->SetEnergyCMS(14000.);
514 comment = comment.Append(" D0 in Pb-Pb at 5.5 TeV");
515 gener = new AliGenPythia(nEvts);
516 gener->SetProcess(kPyD0PbPbMNR);
517 gener->SetStrucFunc(kCTEQ4L);
518 gener->SetPtHard(2.1,-1.0);
519 gener->SetEnergyCMS(5500.);
520 gener->SetNuclei(208,208);
523 comment = comment.Append(" D0 in p-Pb at 8.8 TeV");
524 gener = new AliGenPythia(nEvts);
525 gener->SetProcess(kPyD0pPbMNR);
526 gener->SetStrucFunc(kCTEQ4L);
527 gener->SetPtHard(2.1,-1.0);
528 gener->SetEnergyCMS(8800.);
529 gener->SetProjectile("P",1,1);
530 gener->SetTarget("Pb",208,82);
533 comment = comment.Append(" D0 in pp at 14 TeV");
534 gener = new AliGenPythia(nEvts);
535 gener->SetProcess(kPyD0ppMNR);
536 gener->SetStrucFunc(kCTEQ4L);
537 gener->SetPtHard(2.1,-1.0);
538 gener->SetEnergyCMS(14000.);
541 comment = comment.Append(" DPlus in Pb-Pb at 5.5 TeV");
542 gener = new AliGenPythia(nEvts);
543 gener->SetProcess(kPyDPlusPbPbMNR);
544 gener->SetStrucFunc(kCTEQ4L);
545 gener->SetPtHard(2.1,-1.0);
546 gener->SetEnergyCMS(5500.);
547 gener->SetNuclei(208,208);
550 comment = comment.Append(" DPlus in p-Pb at 8.8 TeV");
551 gener = new AliGenPythia(nEvts);
552 gener->SetProcess(kPyDPluspPbMNR);
553 gener->SetStrucFunc(kCTEQ4L);
554 gener->SetPtHard(2.1,-1.0);
555 gener->SetEnergyCMS(8800.);
556 gener->SetProjectile("P",1,1);
557 gener->SetTarget("Pb",208,82);
560 comment = comment.Append(" DPlus in pp at 14 TeV");
561 gener = new AliGenPythia(nEvts);
562 gener->SetProcess(kPyDPlusppMNR);
563 gener->SetStrucFunc(kCTEQ4L);
564 gener->SetPtHard(2.1,-1.0);
565 gener->SetEnergyCMS(14000.);
567 case kDPlusStrangePbPb5500:
568 comment = comment.Append(" DPlusStrange in Pb-Pb at 5.5 TeV");
569 gener = new AliGenPythia(nEvts);
570 gener->SetProcess(kPyDPlusStrangePbPbMNR);
571 gener->SetStrucFunc(kCTEQ4L);
572 gener->SetPtHard(2.1,-1.0);
573 gener->SetEnergyCMS(5500.);
574 gener->SetNuclei(208,208);
576 case kDPlusStrangepPb8800:
577 comment = comment.Append(" DPlusStrange in p-Pb at 8.8 TeV");
578 gener = new AliGenPythia(nEvts);
579 gener->SetProcess(kPyDPlusStrangepPbMNR);
580 gener->SetStrucFunc(kCTEQ4L);
581 gener->SetPtHard(2.1,-1.0);
582 gener->SetEnergyCMS(8800.);
583 gener->SetProjectile("P",1,1);
584 gener->SetTarget("Pb",208,82);
586 case kDPlusStrangepp14000:
587 comment = comment.Append(" DPlusStrange in pp at 14 TeV");
588 gener = new AliGenPythia(nEvts);
589 gener->SetProcess(kPyDPlusStrangeppMNR);
590 gener->SetStrucFunc(kCTEQ4L);
591 gener->SetPtHard(2.1,-1.0);
592 gener->SetEnergyCMS(14000.);
594 case kBeautyPbPb5500:
595 comment = comment.Append(" Beauty in Pb-Pb at 5.5 TeV");
596 gener = new AliGenPythia(nEvts);
597 gener->SetProcess(kPyBeautyPbPbMNR);
598 gener->SetStrucFunc(kCTEQ4L);
599 gener->SetPtHard(2.75,-1.0);
600 gener->SetEnergyCMS(5500.);
601 gener->SetNuclei(208,208);
604 comment = comment.Append(" Beauty in p-Pb at 8.8 TeV");
605 gener = new AliGenPythia(nEvts);
606 gener->SetProcess(kPyBeautypPbMNR);
607 gener->SetStrucFunc(kCTEQ4L);
608 gener->SetPtHard(2.75,-1.0);
609 gener->SetEnergyCMS(8800.);
610 gener->SetProjectile("P",1,1);
611 gener->SetTarget("Pb",208,82);
614 comment = comment.Append(" Beauty in pp at 14 TeV");
615 gener = new AliGenPythia(nEvts);
616 gener->SetProcess(kPyBeautyppMNR);
617 gener->SetStrucFunc(kCTEQ4L);
618 gener->SetPtHard(2.75,-1.0);
619 gener->SetEnergyCMS(14000.);
621 case kBeautypp14000wmi:
622 comment = comment.Append(" Beauty in pp at 14 TeV with mult. interactions");
623 gener = new AliGenPythia(-1);
624 gener->SetProcess(kPyBeautyppMNRwmi);
625 gener->SetStrucFunc(kCTEQ5L);
626 gener->SetPtHard(ptHardMin,ptHardMax);
627 gener->SetEnergyCMS(14000.);