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 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[] = {
84 AliGenPythia *PythiaHVQ(ProcessHvFl_t proc);
88 // This part for configuration
89 static ProcessHvFl_t procHvFl = kCharmPbPb5500;
90 static DecayHvFl_t decHvFl = kNature;
91 static YCut_t ycut = kFull;
92 static Mag_t mag = k5kG;
93 static TrigConf_t trig = kDefaultPbPbTrig; // default PbPb trigger configuration
94 // nEvts = -1 : you get 1 QQbar pair and all the fragmentation and
96 // nEvts = N>0 : you get N charm / beauty Hadrons
98 // stars = kTRUE : all heavy resonances and their decay stored
99 // = kFALSE: only final heavy hadrons and their decays stored
100 Bool_t stars = kTRUE;
102 // To be used only with kCharmppMNRwmi and kBeautyppMNRwmi
103 // To get a "reasonable" agreement with MNR results, events have to be
104 // generated with the minimum ptHard set to 2.76 GeV.
105 // To get a "perfect" agreement with MNR results, events have to be
106 // generated in four ptHard bins with the following relative
118 Float_t ptHardMin = 2.76;
119 Float_t ptHardMax = -1.;
123 static TString comment;
128 //========================//
129 // Set Random Number seed //
130 //========================//
132 UInt_t curtime=dt.Get();
133 UInt_t procid=gSystem->GetPid();
134 UInt_t seed=curtime-procid;
136 // gRandom->SetSeed(seed);
137 // cerr<<"Seed for random number generation= "<<seed<<endl;
138 gRandom->SetSeed(12345);
140 // Load Pythia libraries
142 // libraries required by geant321
143 #if defined(__CINT__)
144 gSystem->Load("libgeant321");
147 new TGeant3TGeo("C++ Interface to Geant3");
149 if(!AliCDBManager::Instance()->IsDefaultStorageSet()){
150 AliCDBManager::Instance()->SetDefaultStorage("local://$ALICE_ROOT");
151 AliCDBManager::Instance()->SetRun(0);
154 //=======================================================================
155 // Create the output file
158 AliRunLoader* rl=0x0;
160 cout<<"Config.C: Creating Run Loader ..."<<endl;
161 rl = AliRunLoader::Open("galice.root",
162 AliConfig::GetDefaultEventFolderName(),
166 gAlice->Fatal("Config.C","Can not instatiate the Run Loader");
169 rl->SetCompressionLevel(2);
170 rl->SetNumberOfEventsPerFile(3);
171 gAlice->SetRunLoader(rl);
172 // gAlice->SetGeometryFromFile("geometry.root");
173 // gAlice->SetGeometryFromCDB();
175 // Set the trigger configuration
176 gAlice->SetTriggerDescriptor(TrigConfName[trig]);
177 cout<<"Trigger configuration is set to "<<TrigConfName[trig]<<endl;
180 //=======================================================================
181 // ************* STEERING parameters FOR ALICE SIMULATION **************
182 // --- Specify event type to be tracked through the ALICE setup
183 // --- All positions are in cm, angles in degrees, and P and E in GeV
186 gMC->SetProcess("DCAY",1);
187 gMC->SetProcess("PAIR",1);
188 gMC->SetProcess("COMP",1);
189 gMC->SetProcess("PHOT",1);
190 gMC->SetProcess("PFIS",0);
191 gMC->SetProcess("DRAY",0);
192 gMC->SetProcess("ANNI",1);
193 gMC->SetProcess("BREM",1);
194 gMC->SetProcess("MUNU",1);
195 gMC->SetProcess("CKOV",1);
196 gMC->SetProcess("HADR",1);
197 gMC->SetProcess("LOSS",2);
198 gMC->SetProcess("MULS",1);
199 gMC->SetProcess("RAYL",1);
201 Float_t cut = 1.e-3; // 1MeV cut by default
202 Float_t tofmax = 1.e10;
204 gMC->SetCut("CUTGAM", cut);
205 gMC->SetCut("CUTELE", cut);
206 gMC->SetCut("CUTNEU", cut);
207 gMC->SetCut("CUTHAD", cut);
208 gMC->SetCut("CUTMUO", cut);
209 gMC->SetCut("BCUTE", cut);
210 gMC->SetCut("BCUTM", cut);
211 gMC->SetCut("DCUTE", cut);
212 gMC->SetCut("DCUTM", cut);
213 gMC->SetCut("PPCUTM", cut);
214 gMC->SetCut("TOFMAX", tofmax);
219 // Set External decayer //
220 //======================//
221 TVirtualMCDecayer* decayer = new AliDecayerPythia();
226 decayer->SetForceDecay(kAll);
229 decayer->SetForceDecay(kHadronicD);
232 decayer->SetForceDecay(kSemiElectronic);
235 decayer->SetForceDecay(kSemiMuonic);
239 gMC->SetExternalDecayer(decayer);
241 //=========================//
242 // Generator Configuration //
243 //=========================//
244 AliGenPythia *pythia = PythiaHVQ(procHvFl);
246 pythia->SetFeedDownHigherFamily(kFALSE);
247 // Stack filling option
248 if(!stars) pythia->SetStackFillOpt(AliGenPythia::kParentSelection);
250 if(nEvts>0) pythia->SetCountMode(AliGenPythia::kCountParents);
255 pythia->SetForceDecay(kAll);
258 pythia->SetForceDecay(kHadronicD);
261 pythia->SetForceDecay(kSemiElectronic);
264 pythia->SetForceDecay(kSemiMuonic);
269 pythia->SetMomentumRange(0,99999999);
270 pythia->SetPhiRange(0., 360.);
271 pythia->SetThetaRange(0,180);
274 pythia->SetYRange(-999,999);
277 pythia->SetYRange(-2,2);
280 pythia->SetYRange(1,6);
286 pythia->SetOrigin(0, 0, 0); // vertex position
287 pythia->SetSigma(0, 0, 5.3); // Sigma in (X,Y,Z) (cm) on IP position
288 pythia->SetCutVertexZ(1.); // Truncate at 1 sigma
289 pythia->SetVertexSmear(kPerEvent);
293 pythia->SetTrackingFlag(0);
294 // Specify GEANT tracking limits (Rmax, Zmax)
295 //gAlice->GetMCApp()->TrackingLimits(90.,1.0e10);
303 comment = comment.Append(" | L3 field 0.2 T");
304 } else if (mag == k4kG) {
305 comment = comment.Append(" | L3 field 0.4 T");
306 } else if (mag == k5kG) {
307 comment = comment.Append(" | L3 field 0.5 T");
309 printf("\n \n Comment: %s \n \n", comment.Data());
311 AliMagFMaps* field = new AliMagFMaps("Maps","Maps", 2, 1., 10., mag);
312 field->SetL3ConstField(0); //Using const. field in the barrel
314 gAlice->SetField(field);
317 // By default all ALICE is switched off
338 //=================== Alice BODY parameters =============================
339 AliBODY *BODY = new AliBODY("BODY","Alice envelop");
342 //=================== MAG parameters ============================
343 // --- Start with Magnet since detector layouts may be depending ---
344 // --- on the selected Magnet dimensions ---
345 AliMAG *MAG = new AliMAG("MAG","Magnet");
350 //=================== ABSO parameters ============================
351 AliABSO *ABSO = new AliABSOv3("ABSO","Muon Absorber");
355 //=================== DIPO parameters ============================
357 AliDIPO *DIPO = new AliDIPOv3("DIPO","Dipole version 3");
361 //=================== HALL parameters ============================
363 AliHALL *HALL = new AliHALLv3("HALL","Alice Hall");
368 //=================== FRAME parameters ============================
370 AliFRAME *FRAME = new AliFRAMEv2("FRAME","Space Frame");
375 //=================== SHIL parameters ============================
377 AliSHIL *SHIL = new AliSHILv3("SHIL","Shielding");
382 //=================== PIPE parameters ============================
384 AliPIPE *PIPE = new AliPIPEv3("PIPE","Beam Pipe");
389 //=================== ITS parameters ============================
391 AliITS *ITS = new AliITSv11Hybrid("ITS","ITS v11Hybrid");
396 //============================ TPC parameters ===================
397 AliTPC *TPC = new AliTPCv2("TPC","Default");
402 //=================== TOF parameters ============================
403 AliTOF *TOF = new AliTOFv6T0("TOF","normal TOF");
407 //=================== HMPID parameters ===========================
408 AliHMPID *HMPID = new AliHMPIDv3("HMPID","normal HMPID");
414 //=================== ZDC parameters ============================
416 AliZDC *ZDC = new AliZDCv3("ZDC","normal ZDC");
420 //=================== ACORDE parameters ============================
422 AliACORDE *ACORDE = new AliACORDEv1("ACORDE","normal ACORDE");
426 //=================== TRD parameters ============================
428 AliTRD *TRD = new AliTRDv1("TRD","TRD slow simulator");
432 //=================== FMD parameters ============================
434 AliFMD *FMD = new AliFMDv0("FMD","normal FMD");
438 //=================== MUON parameters ===========================
439 AliMUON *MUON = new AliMUONv1("MUON","default");
442 //=================== PHOS parameters ===========================
445 AliPHOS *PHOS = new AliPHOSv1("PHOS","GPS2");
449 //=================== ACORDE parameters ===========================
452 AliACORDE *ACORDE = new AliACORDEv1("ACORDE","Normal ACORDEGPS2");
457 //=================== PMD parameters ============================
459 AliPMD *PMD = new AliPMDv1("PMD","normal PMD");
460 PMD->SetPAR(1., 1., 0.8, 0.02);
461 PMD->SetIN(6., 18., -580., 27., 27.);
462 PMD->SetGEO(0.0, 0.2, 4.);
463 PMD->SetPadSize(0.8, 1.0, 1.0, 1.5);
468 //=================== T0 parameters ============================
469 AliT0 *T0 = new AliT0v1("T0","T0 Detector");
477 AliGenPythia *PythiaHVQ(ProcessHvFl_t proc) {
479 AliGenPythia * gener = 0x0;
483 comment = comment.Append(" Charm in Pb-Pb at 5.5 TeV");
484 gener = new AliGenPythia(nEvts);
485 gener->SetProcess(kPyCharmPbPbMNR);
486 gener->SetStrucFunc(kCTEQ4L);
487 gener->SetPtHard(2.1,-1.0);
488 gener->SetEnergyCMS(5500.);
489 gener->SetNuclei(208,208);
492 comment = comment.Append(" Charm in p-Pb at 8.8 TeV");
493 gener = new AliGenPythia(nEvts);
494 gener->SetProcess(kPyCharmpPbMNR);
495 gener->SetStrucFunc(kCTEQ4L);
496 gener->SetPtHard(2.1,-1.0);
497 gener->SetEnergyCMS(8800.);
498 gener->SetProjectile("P",1,1);
499 gener->SetTarget("Pb",208,82);
502 comment = comment.Append(" Charm in pp at 14 TeV");
503 gener = new AliGenPythia(nEvts);
504 gener->SetProcess(kPyCharmppMNR);
505 gener->SetStrucFunc(kCTEQ4L);
506 gener->SetPtHard(2.1,-1.0);
507 gener->SetEnergyCMS(14000.);
509 case kCharmpp14000wmi:
510 comment = comment.Append(" Charm in pp at 14 TeV with mult. interactions");
511 gener = new AliGenPythia(-1);
512 gener->SetProcess(kPyCharmppMNRwmi);
513 gener->SetStrucFunc(kCTEQ5L);
514 gener->SetPtHard(ptHardMin,ptHardMax);
515 gener->SetEnergyCMS(14000.);
518 comment = comment.Append(" D0 in Pb-Pb at 5.5 TeV");
519 gener = new AliGenPythia(nEvts);
520 gener->SetProcess(kPyD0PbPbMNR);
521 gener->SetStrucFunc(kCTEQ4L);
522 gener->SetPtHard(2.1,-1.0);
523 gener->SetEnergyCMS(5500.);
524 gener->SetNuclei(208,208);
527 comment = comment.Append(" D0 in p-Pb at 8.8 TeV");
528 gener = new AliGenPythia(nEvts);
529 gener->SetProcess(kPyD0pPbMNR);
530 gener->SetStrucFunc(kCTEQ4L);
531 gener->SetPtHard(2.1,-1.0);
532 gener->SetEnergyCMS(8800.);
533 gener->SetProjectile("P",1,1);
534 gener->SetTarget("Pb",208,82);
537 comment = comment.Append(" D0 in pp at 14 TeV");
538 gener = new AliGenPythia(nEvts);
539 gener->SetProcess(kPyD0ppMNR);
540 gener->SetStrucFunc(kCTEQ4L);
541 gener->SetPtHard(2.1,-1.0);
542 gener->SetEnergyCMS(14000.);
545 comment = comment.Append(" DPlus in Pb-Pb at 5.5 TeV");
546 gener = new AliGenPythia(nEvts);
547 gener->SetProcess(kPyDPlusPbPbMNR);
548 gener->SetStrucFunc(kCTEQ4L);
549 gener->SetPtHard(2.1,-1.0);
550 gener->SetEnergyCMS(5500.);
551 gener->SetNuclei(208,208);
554 comment = comment.Append(" DPlus in p-Pb at 8.8 TeV");
555 gener = new AliGenPythia(nEvts);
556 gener->SetProcess(kPyDPluspPbMNR);
557 gener->SetStrucFunc(kCTEQ4L);
558 gener->SetPtHard(2.1,-1.0);
559 gener->SetEnergyCMS(8800.);
560 gener->SetProjectile("P",1,1);
561 gener->SetTarget("Pb",208,82);
564 comment = comment.Append(" DPlus in pp at 14 TeV");
565 gener = new AliGenPythia(nEvts);
566 gener->SetProcess(kPyDPlusppMNR);
567 gener->SetStrucFunc(kCTEQ4L);
568 gener->SetPtHard(2.1,-1.0);
569 gener->SetEnergyCMS(14000.);
571 case kDPlusStrangePbPb5500:
572 comment = comment.Append(" DPlusStrange in Pb-Pb at 5.5 TeV");
573 gener = new AliGenPythia(nEvts);
574 gener->SetProcess(kPyDPlusStrangePbPbMNR);
575 gener->SetStrucFunc(kCTEQ4L);
576 gener->SetPtHard(2.1,-1.0);
577 gener->SetEnergyCMS(5500.);
578 gener->SetNuclei(208,208);
580 case kDPlusStrangepPb8800:
581 comment = comment.Append(" DPlusStrange in p-Pb at 8.8 TeV");
582 gener = new AliGenPythia(nEvts);
583 gener->SetProcess(kPyDPlusStrangepPbMNR);
584 gener->SetStrucFunc(kCTEQ4L);
585 gener->SetPtHard(2.1,-1.0);
586 gener->SetEnergyCMS(8800.);
587 gener->SetProjectile("P",1,1);
588 gener->SetTarget("Pb",208,82);
590 case kDPlusStrangepp14000:
591 comment = comment.Append(" DPlusStrange in pp at 14 TeV");
592 gener = new AliGenPythia(nEvts);
593 gener->SetProcess(kPyDPlusStrangeppMNR);
594 gener->SetStrucFunc(kCTEQ4L);
595 gener->SetPtHard(2.1,-1.0);
596 gener->SetEnergyCMS(14000.);
598 case kBeautyPbPb5500:
599 comment = comment.Append(" Beauty in Pb-Pb at 5.5 TeV");
600 gener = new AliGenPythia(nEvts);
601 gener->SetProcess(kPyBeautyPbPbMNR);
602 gener->SetStrucFunc(kCTEQ4L);
603 gener->SetPtHard(2.75,-1.0);
604 gener->SetEnergyCMS(5500.);
605 gener->SetNuclei(208,208);
608 comment = comment.Append(" Beauty in p-Pb at 8.8 TeV");
609 gener = new AliGenPythia(nEvts);
610 gener->SetProcess(kPyBeautypPbMNR);
611 gener->SetStrucFunc(kCTEQ4L);
612 gener->SetPtHard(2.75,-1.0);
613 gener->SetEnergyCMS(8800.);
614 gener->SetProjectile("P",1,1);
615 gener->SetTarget("Pb",208,82);
618 comment = comment.Append(" Beauty in pp at 14 TeV");
619 gener = new AliGenPythia(nEvts);
620 gener->SetProcess(kPyBeautyppMNR);
621 gener->SetStrucFunc(kCTEQ4L);
622 gener->SetPtHard(2.75,-1.0);
623 gener->SetEnergyCMS(14000.);
625 case kBeautypp14000wmi:
626 comment = comment.Append(" Beauty in pp at 14 TeV with mult. interactions");
627 gener = new AliGenPythia(-1);
628 gener->SetProcess(kPyBeautyppMNRwmi);
629 gener->SetStrucFunc(kCTEQ5L);
630 gener->SetPtHard(ptHardMin,ptHardMax);
631 gener->SetEnergyCMS(14000.);
642 // Load Pythia related libraries
643 gSystem->Load("liblhapdf.so"); // Parton density functions
644 gSystem->Load("libEGPythia6.so"); // TGenerator interface
645 gSystem->Load("libpythia6.so"); // Pythia
646 gSystem->Load("libAliPythia6.so"); // ALICE specific implementations