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/AliITSv11Hybrid.h"
36 #include "TPC/AliTPCv2.h"
37 #include "TOF/AliTOFv6T0.h"
38 #include "HMPID/AliHMPIDv3.h"
39 #include "ZDC/AliZDCv3.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 kCharmSemiElpp14000wmi,
54 kD0PbPb5500, kD0pPb8800, kD0pp14000,
55 kDPlusPbPb5500, kDPluspPb8800, kDPluspp14000,
56 kDPlusStrangePbPb5500, kDPlusStrangepPb8800, kDPlusStrangepp14000,
57 kBeautyPbPb5500, kBeautypPb8800, kBeautypp14000, kBeautypp14000wmi,
58 kBeautySemiElpp14000wmi
63 kNature, kHadr, kSemiEl, kSemiMu
65 //--- Rapidity Cut ---
68 kFull, kBarrel, kMuonArm
70 //--- Magnetic Field ---
75 //--- Trigger config ---
78 kDefaultPPTrig, kDefaultPbPbTrig
80 const char * TrigConfName[] = {
86 AliGenPythia *PythiaHVQ(ProcessHvFl_t proc);
90 // This part for configuration
91 static ProcessHvFl_t procHvFl = kCharmpp14000wmi;
92 static DecayHvFl_t decHvFl = kNature;
93 static YCut_t ycut = kFull;
94 static Mag_t mag = k5kG;
95 static TrigConf_t trig = kDefaultPbPbTrig; // default PbPb trigger configuration
96 // nEvts = -1 : you get 1 QQbar pair and all the fragmentation and
98 // nEvts = N>0 : you get N charm / beauty Hadrons
100 // stars = kTRUE : all heavy resonances and their decay stored
101 // = kFALSE: only final heavy hadrons and their decays stored
102 Bool_t stars = kTRUE;
104 // To be used only with kCharmppMNRwmi and kBeautyppMNRwmi
105 // To get a "reasonable" agreement with MNR results, events have to be
106 // generated with the minimum ptHard set to 2.76 GeV.
107 // To get a "perfect" agreement with MNR results, events have to be
108 // generated in four ptHard bins with the following relative
120 Float_t ptHardMin = 2.76;
121 Float_t ptHardMax = -1.;
125 static TString comment;
130 //========================//
131 // Set Random Number seed //
132 //========================//
134 UInt_t curtime=dt.Get();
135 UInt_t procid=gSystem->GetPid();
136 UInt_t seed=curtime-procid;
138 // gRandom->SetSeed(seed);
139 // cerr<<"Seed for random number generation= "<<seed<<endl;
140 gRandom->SetSeed(12345);
142 // Load Pythia libraries
144 // libraries required by geant321
145 #if defined(__CINT__)
146 gSystem->Load("libgeant321");
149 new TGeant3TGeo("C++ Interface to Geant3");
151 if(!AliCDBManager::Instance()->IsDefaultStorageSet()){
152 AliCDBManager::Instance()->SetDefaultStorage("local://$ALICE_ROOT");
153 AliCDBManager::Instance()->SetRun(0);
156 //=======================================================================
157 // Create the output file
160 AliRunLoader* rl=0x0;
162 cout<<"Config.C: Creating Run Loader ..."<<endl;
163 rl = AliRunLoader::Open("galice.root",
164 AliConfig::GetDefaultEventFolderName(),
168 gAlice->Fatal("Config.C","Can not instatiate the Run Loader");
171 rl->SetCompressionLevel(2);
172 rl->SetNumberOfEventsPerFile(1000);
173 gAlice->SetRunLoader(rl);
174 // gAlice->SetGeometryFromFile("geometry.root");
175 // gAlice->SetGeometryFromCDB();
177 // Set the trigger configuration
178 gAlice->SetTriggerDescriptor(TrigConfName[trig]);
179 cout<<"Trigger configuration is set to "<<TrigConfName[trig]<<endl;
182 //=======================================================================
183 // ************* STEERING parameters FOR ALICE SIMULATION **************
184 // --- Specify event type to be tracked through the ALICE setup
185 // --- All positions are in cm, angles in degrees, and P and E in GeV
188 gMC->SetProcess("DCAY",1);
189 gMC->SetProcess("PAIR",1);
190 gMC->SetProcess("COMP",1);
191 gMC->SetProcess("PHOT",1);
192 gMC->SetProcess("PFIS",0);
193 gMC->SetProcess("DRAY",0);
194 gMC->SetProcess("ANNI",1);
195 gMC->SetProcess("BREM",1);
196 gMC->SetProcess("MUNU",1);
197 gMC->SetProcess("CKOV",1);
198 gMC->SetProcess("HADR",1);
199 gMC->SetProcess("LOSS",2);
200 gMC->SetProcess("MULS",1);
201 gMC->SetProcess("RAYL",1);
203 Float_t cut = 1.e-3; // 1MeV cut by default
204 Float_t tofmax = 1.e10;
206 gMC->SetCut("CUTGAM", cut);
207 gMC->SetCut("CUTELE", cut);
208 gMC->SetCut("CUTNEU", cut);
209 gMC->SetCut("CUTHAD", cut);
210 gMC->SetCut("CUTMUO", cut);
211 gMC->SetCut("BCUTE", cut);
212 gMC->SetCut("BCUTM", cut);
213 gMC->SetCut("DCUTE", cut);
214 gMC->SetCut("DCUTM", cut);
215 gMC->SetCut("PPCUTM", cut);
216 gMC->SetCut("TOFMAX", tofmax);
221 // Set External decayer //
222 //======================//
223 TVirtualMCDecayer* decayer = new AliDecayerPythia();
228 decayer->SetForceDecay(kAll);
231 decayer->SetForceDecay(kHadronicD);
234 decayer->SetForceDecay(kSemiElectronic);
237 decayer->SetForceDecay(kSemiMuonic);
241 gMC->SetExternalDecayer(decayer);
243 //=========================//
244 // Generator Configuration //
245 //=========================//
246 AliGenPythia *pythia = PythiaHVQ(procHvFl);
248 pythia->SetFeedDownHigherFamily(kFALSE);
249 // Stack filling option
250 if(!stars) pythia->SetStackFillOpt(AliGenPythia::kParentSelection);
252 if(nEvts>0) pythia->SetCountMode(AliGenPythia::kCountParents);
257 pythia->SetForceDecay(kAll);
260 pythia->SetForceDecay(kHadronicD);
263 pythia->SetForceDecay(kSemiElectronic);
266 pythia->SetForceDecay(kSemiMuonic);
271 pythia->SetMomentumRange(0,99999999);
272 pythia->SetPhiRange(0., 360.);
273 pythia->SetThetaRange(0,180);
276 pythia->SetYRange(-999,999);
279 pythia->SetYRange(-2,2);
282 pythia->SetYRange(1,6);
288 pythia->SetOrigin(0, 0, 0); // vertex position
289 pythia->SetSigma(0, 0, 5.3); // Sigma in (X,Y,Z) (cm) on IP position
290 pythia->SetCutVertexZ(1.); // Truncate at 1 sigma
291 pythia->SetVertexSmear(kPerEvent);
295 pythia->SetTrackingFlag(0);
296 // Specify GEANT tracking limits (Rmax, Zmax)
297 //gAlice->GetMCApp()->TrackingLimits(90.,1.0e10);
305 comment = comment.Append(" | L3 field 0.2 T");
306 } else if (mag == k4kG) {
307 comment = comment.Append(" | L3 field 0.4 T");
308 } else if (mag == k5kG) {
309 comment = comment.Append(" | L3 field 0.5 T");
311 printf("\n \n Comment: %s \n \n", comment.Data());
313 AliMagFMaps* field = new AliMagFMaps("Maps","Maps", 2, 1., 10., mag);
314 field->SetL3ConstField(0); //Using const. field in the barrel
316 gAlice->SetField(field);
319 // By default all ALICE is switched off
340 //=================== Alice BODY parameters =============================
341 AliBODY *BODY = new AliBODY("BODY","Alice envelop");
344 //=================== MAG parameters ============================
345 // --- Start with Magnet since detector layouts may be depending ---
346 // --- on the selected Magnet dimensions ---
347 AliMAG *MAG = new AliMAG("MAG","Magnet");
352 //=================== ABSO parameters ============================
353 AliABSO *ABSO = new AliABSOv3("ABSO","Muon Absorber");
357 //=================== DIPO parameters ============================
359 AliDIPO *DIPO = new AliDIPOv3("DIPO","Dipole version 3");
363 //=================== HALL parameters ============================
365 AliHALL *HALL = new AliHALLv3("HALL","Alice Hall");
370 //=================== FRAME parameters ============================
372 AliFRAME *FRAME = new AliFRAMEv2("FRAME","Space Frame");
377 //=================== SHIL parameters ============================
379 AliSHIL *SHIL = new AliSHILv3("SHIL","Shielding");
384 //=================== PIPE parameters ============================
386 AliPIPE *PIPE = new AliPIPEv3("PIPE","Beam Pipe");
391 //=================== ITS parameters ============================
393 AliITS *ITS = new AliITSv11Hybrid("ITS","ITS v11Hybrid");
398 //============================ TPC parameters ===================
399 AliTPC *TPC = new AliTPCv2("TPC","Default");
404 //=================== TOF parameters ============================
405 AliTOF *TOF = new AliTOFv6T0("TOF","normal TOF");
409 //=================== HMPID parameters ===========================
410 AliHMPID *HMPID = new AliHMPIDv3("HMPID","normal HMPID");
416 //=================== ZDC parameters ============================
418 AliZDC *ZDC = new AliZDCv3("ZDC","normal ZDC");
422 //=================== ACORDE parameters ============================
424 AliACORDE *ACORDE = new AliACORDEv1("ACORDE","normal ACORDE");
428 //=================== TRD parameters ============================
430 AliTRD *TRD = new AliTRDv1("TRD","TRD slow simulator");
434 //=================== FMD parameters ============================
436 AliFMD *FMD = new AliFMDv0("FMD","normal FMD");
440 //=================== MUON parameters ===========================
441 AliMUON *MUON = new AliMUONv1("MUON","default");
444 //=================== PHOS parameters ===========================
447 AliPHOS *PHOS = new AliPHOSv1("PHOS","GPS2");
451 //=================== ACORDE parameters ===========================
454 AliACORDE *ACORDE = new AliACORDEv1("ACORDE","Normal ACORDEGPS2");
459 //=================== PMD parameters ============================
461 AliPMD *PMD = new AliPMDv1("PMD","normal PMD");
462 PMD->SetPAR(1., 1., 0.8, 0.02);
463 PMD->SetIN(6., 18., -580., 27., 27.);
464 PMD->SetGEO(0.0, 0.2, 4.);
465 PMD->SetPadSize(0.8, 1.0, 1.0, 1.5);
470 //=================== T0 parameters ============================
471 AliT0 *T0 = new AliT0v1("T0","T0 Detector");
479 AliGenPythia *PythiaHVQ(ProcessHvFl_t proc) {
481 AliGenPythia * gener = 0x0;
485 comment = comment.Append(" Charm in Pb-Pb at 5.5 TeV");
486 gener = new AliGenPythia(nEvts);
487 gener->SetProcess(kPyCharmPbPbMNR);
488 gener->SetStrucFunc(kCTEQ4L);
489 gener->SetPtHard(2.1,-1.0);
490 gener->SetEnergyCMS(5500.);
491 gener->SetNuclei(208,208);
494 comment = comment.Append(" Charm in p-Pb at 8.8 TeV");
495 gener = new AliGenPythia(nEvts);
496 gener->SetProcess(kPyCharmpPbMNR);
497 gener->SetStrucFunc(kCTEQ4L);
498 gener->SetPtHard(2.1,-1.0);
499 gener->SetEnergyCMS(8800.);
500 gener->SetProjectile("P",1,1);
501 gener->SetTarget("Pb",208,82);
504 comment = comment.Append(" Charm in pp at 14 TeV");
505 gener = new AliGenPythia(nEvts);
506 gener->SetProcess(kPyCharmppMNR);
507 gener->SetStrucFunc(kCTEQ4L);
508 gener->SetPtHard(2.1,-1.0);
509 gener->SetEnergyCMS(14000.);
511 case kCharmpp14000wmi:
512 comment = comment.Append(" Charm in pp at 14 TeV with mult. interactions");
513 gener = new AliGenPythia(-1);
514 gener->SetProcess(kPyCharmppMNRwmi);
515 gener->SetStrucFunc(kCTEQ5L);
516 gener->SetPtHard(ptHardMin,ptHardMax);
517 gener->SetEnergyCMS(14000.);
519 case kCharmSemiElpp14000wmi:
520 comment = comment.Append(" Charm in pp at 14 TeV with mult. interactions");
521 gener = new AliGenPythia(-1);
522 gener->SetProcess(kPyCharmppMNRwmi);
523 gener->SetStrucFunc(kCTEQ5L);
524 gener->SetPtHard(ptHardMin,ptHardMax);
525 gener->SetEnergyCMS(14000.);
526 gener->SetCutOnChild(1);
527 gener->SetPdgCodeParticleforAcceptanceCut(11);
528 gener->SetChildYRange(-1,1);
529 gener->SetChildPtRange(1,10000.);
532 comment = comment.Append(" D0 in Pb-Pb at 5.5 TeV");
533 gener = new AliGenPythia(nEvts);
534 gener->SetProcess(kPyD0PbPbMNR);
535 gener->SetStrucFunc(kCTEQ4L);
536 gener->SetPtHard(2.1,-1.0);
537 gener->SetEnergyCMS(5500.);
538 gener->SetNuclei(208,208);
541 comment = comment.Append(" D0 in p-Pb at 8.8 TeV");
542 gener = new AliGenPythia(nEvts);
543 gener->SetProcess(kPyD0pPbMNR);
544 gener->SetStrucFunc(kCTEQ4L);
545 gener->SetPtHard(2.1,-1.0);
546 gener->SetEnergyCMS(8800.);
547 gener->SetProjectile("P",1,1);
548 gener->SetTarget("Pb",208,82);
551 comment = comment.Append(" D0 in pp at 14 TeV");
552 gener = new AliGenPythia(nEvts);
553 gener->SetProcess(kPyD0ppMNR);
554 gener->SetStrucFunc(kCTEQ4L);
555 gener->SetPtHard(2.1,-1.0);
556 gener->SetEnergyCMS(14000.);
559 comment = comment.Append(" DPlus in Pb-Pb at 5.5 TeV");
560 gener = new AliGenPythia(nEvts);
561 gener->SetProcess(kPyDPlusPbPbMNR);
562 gener->SetStrucFunc(kCTEQ4L);
563 gener->SetPtHard(2.1,-1.0);
564 gener->SetEnergyCMS(5500.);
565 gener->SetNuclei(208,208);
568 comment = comment.Append(" DPlus in p-Pb at 8.8 TeV");
569 gener = new AliGenPythia(nEvts);
570 gener->SetProcess(kPyDPluspPbMNR);
571 gener->SetStrucFunc(kCTEQ4L);
572 gener->SetPtHard(2.1,-1.0);
573 gener->SetEnergyCMS(8800.);
574 gener->SetProjectile("P",1,1);
575 gener->SetTarget("Pb",208,82);
578 comment = comment.Append(" DPlus in pp at 14 TeV");
579 gener = new AliGenPythia(nEvts);
580 gener->SetProcess(kPyDPlusppMNR);
581 gener->SetStrucFunc(kCTEQ4L);
582 gener->SetPtHard(2.1,-1.0);
583 gener->SetEnergyCMS(14000.);
585 case kDPlusStrangePbPb5500:
586 comment = comment.Append(" DPlusStrange in Pb-Pb at 5.5 TeV");
587 gener = new AliGenPythia(nEvts);
588 gener->SetProcess(kPyDPlusStrangePbPbMNR);
589 gener->SetStrucFunc(kCTEQ4L);
590 gener->SetPtHard(2.1,-1.0);
591 gener->SetEnergyCMS(5500.);
592 gener->SetNuclei(208,208);
594 case kDPlusStrangepPb8800:
595 comment = comment.Append(" DPlusStrange in p-Pb at 8.8 TeV");
596 gener = new AliGenPythia(nEvts);
597 gener->SetProcess(kPyDPlusStrangepPbMNR);
598 gener->SetStrucFunc(kCTEQ4L);
599 gener->SetPtHard(2.1,-1.0);
600 gener->SetEnergyCMS(8800.);
601 gener->SetProjectile("P",1,1);
602 gener->SetTarget("Pb",208,82);
604 case kDPlusStrangepp14000:
605 comment = comment.Append(" DPlusStrange in pp at 14 TeV");
606 gener = new AliGenPythia(nEvts);
607 gener->SetProcess(kPyDPlusStrangeppMNR);
608 gener->SetStrucFunc(kCTEQ4L);
609 gener->SetPtHard(2.1,-1.0);
610 gener->SetEnergyCMS(14000.);
612 case kBeautyPbPb5500:
613 comment = comment.Append(" Beauty in Pb-Pb at 5.5 TeV");
614 gener = new AliGenPythia(nEvts);
615 gener->SetProcess(kPyBeautyPbPbMNR);
616 gener->SetStrucFunc(kCTEQ4L);
617 gener->SetPtHard(2.75,-1.0);
618 gener->SetEnergyCMS(5500.);
619 gener->SetNuclei(208,208);
622 comment = comment.Append(" Beauty in p-Pb at 8.8 TeV");
623 gener = new AliGenPythia(nEvts);
624 gener->SetProcess(kPyBeautypPbMNR);
625 gener->SetStrucFunc(kCTEQ4L);
626 gener->SetPtHard(2.75,-1.0);
627 gener->SetEnergyCMS(8800.);
628 gener->SetProjectile("P",1,1);
629 gener->SetTarget("Pb",208,82);
632 comment = comment.Append(" Beauty in pp at 14 TeV");
633 gener = new AliGenPythia(nEvts);
634 gener->SetProcess(kPyBeautyppMNR);
635 gener->SetStrucFunc(kCTEQ4L);
636 gener->SetPtHard(2.75,-1.0);
637 gener->SetEnergyCMS(14000.);
639 case kBeautypp14000wmi:
640 comment = comment.Append(" Beauty in pp at 14 TeV with mult. interactions");
641 gener = new AliGenPythia(-1);
642 gener->SetProcess(kPyBeautyppMNRwmi);
643 gener->SetStrucFunc(kCTEQ5L);
644 gener->SetPtHard(ptHardMin,ptHardMax);
645 gener->SetEnergyCMS(14000.);
647 case kBeautySemiElpp14000wmi:
648 comment = comment.Append(" Beauty in pp at 14 TeV with mult. interactions");
649 gener = new AliGenPythia(-1);
650 gener->SetProcess(kPyBeautyppMNRwmi);
651 gener->SetStrucFunc(kCTEQ5L);
652 gener->SetPtHard(ptHardMin,ptHardMax);
653 gener->SetEnergyCMS(14000.);
654 gener->SetCutOnChild(1);
655 gener->SetPdgCodeParticleforAcceptanceCut(11);
656 gener->SetChildYRange(-1,1);
657 gener->SetChildPtRange(1,10000.);
668 // Load Pythia related libraries
669 gSystem->Load("liblhapdf.so"); // Parton density functions
670 gSystem->Load("libEGPythia6.so"); // TGenerator interface
671 gSystem->Load("libpythia6.so"); // Pythia
672 gSystem->Load("libAliPythia6.so"); // ALICE specific implementations