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/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[] = {
87 AliGenPythia *PythiaHVQ(ProcessHvFl_t proc);
91 // This part for configuration
92 static ProcessHvFl_t procHvFl = kCharmPbPb5500;
93 static DecayHvFl_t decHvFl = kNature;
94 static YCut_t ycut = kFull;
95 static Mag_t mag = k5kG;
96 static TrigConf_t trig = kDefaultPbPbTrig; // default PbPb trigger configuration
97 static PprGeo_t geo = kHoles;
98 // nEvts = -1 : you get 1 QQbar pair and all the fragmentation and
100 // nEvts = N>0 : you get N charm / beauty Hadrons
102 // stars = kTRUE : all heavy resonances and their decay stored
103 // = kFALSE: only final heavy hadrons and their decays stored
104 Bool_t stars = kTRUE;
106 // To be used only with kCharmppMNRwmi and kBeautyppMNRwmi
107 // To get a "reasonable" agreement with MNR results, events have to be
108 // generated with the minimum ptHard set to 2.76 GeV.
109 // To get a "perfect" agreement with MNR results, events have to be
110 // generated in four ptHard bins with the following relative
122 Float_t ptHardMin = 2.76;
123 Float_t ptHardMax = -1.;
127 static TString comment;
132 //========================//
133 // Set Random Number seed //
134 //========================//
136 UInt_t curtime=dt.Get();
137 UInt_t procid=gSystem->GetPid();
138 UInt_t seed=curtime-procid;
140 // gRandom->SetSeed(seed);
141 // cerr<<"Seed for random number generation= "<<seed<<endl;
142 gRandom->SetSeed(12345);
144 // Load Pythia libraries
146 // libraries required by geant321
147 #if defined(__CINT__)
148 gSystem->Load("libgeant321");
151 new TGeant3TGeo("C++ Interface to Geant3");
153 if(!AliCDBManager::Instance()->IsDefaultStorageSet()){
154 AliCDBManager::Instance()->SetDefaultStorage("local://$ALICE_ROOT");
155 AliCDBManager::Instance()->SetRun(0);
158 //=======================================================================
159 // Create the output file
162 AliRunLoader* rl=0x0;
164 cout<<"Config.C: Creating Run Loader ..."<<endl;
165 rl = AliRunLoader::Open("galice.root",
166 AliConfig::GetDefaultEventFolderName(),
170 gAlice->Fatal("Config.C","Can not instatiate the Run Loader");
173 rl->SetCompressionLevel(2);
174 rl->SetNumberOfEventsPerFile(3);
175 gAlice->SetRunLoader(rl);
176 // gAlice->SetGeometryFromFile("geometry.root");
177 // gAlice->SetGeometryFromCDB();
179 // Set the trigger configuration
180 gAlice->SetTriggerDescriptor(TrigConfName[trig]);
181 cout<<"Trigger configuration is set to "<<TrigConfName[trig]<<endl;
184 //=======================================================================
185 // ************* STEERING parameters FOR ALICE SIMULATION **************
186 // --- Specify event type to be tracked through the ALICE setup
187 // --- All positions are in cm, angles in degrees, and P and E in GeV
190 gMC->SetProcess("DCAY",1);
191 gMC->SetProcess("PAIR",1);
192 gMC->SetProcess("COMP",1);
193 gMC->SetProcess("PHOT",1);
194 gMC->SetProcess("PFIS",0);
195 gMC->SetProcess("DRAY",0);
196 gMC->SetProcess("ANNI",1);
197 gMC->SetProcess("BREM",1);
198 gMC->SetProcess("MUNU",1);
199 gMC->SetProcess("CKOV",1);
200 gMC->SetProcess("HADR",1);
201 gMC->SetProcess("LOSS",2);
202 gMC->SetProcess("MULS",1);
203 gMC->SetProcess("RAYL",1);
205 Float_t cut = 1.e-3; // 1MeV cut by default
206 Float_t tofmax = 1.e10;
208 gMC->SetCut("CUTGAM", cut);
209 gMC->SetCut("CUTELE", cut);
210 gMC->SetCut("CUTNEU", cut);
211 gMC->SetCut("CUTHAD", cut);
212 gMC->SetCut("CUTMUO", cut);
213 gMC->SetCut("BCUTE", cut);
214 gMC->SetCut("BCUTM", cut);
215 gMC->SetCut("DCUTE", cut);
216 gMC->SetCut("DCUTM", cut);
217 gMC->SetCut("PPCUTM", cut);
218 gMC->SetCut("TOFMAX", tofmax);
223 // Set External decayer //
224 //======================//
225 TVirtualMCDecayer* decayer = new AliDecayerPythia();
230 decayer->SetForceDecay(kAll);
233 decayer->SetForceDecay(kHadronicD);
236 decayer->SetForceDecay(kSemiElectronic);
239 decayer->SetForceDecay(kSemiMuonic);
243 gMC->SetExternalDecayer(decayer);
245 //=========================//
246 // Generator Configuration //
247 //=========================//
248 AliGenPythia *pythia = PythiaHVQ(procHvFl);
250 pythia->SetFeedDownHigherFamily(kFALSE);
251 // Stack filling option
252 if(!stars) pythia->SetStackFillOpt(AliGenPythia::kParentSelection);
254 if(nEvts>0) pythia->SetCountMode(AliGenPythia::kCountParents);
259 pythia->SetForceDecay(kAll);
262 pythia->SetForceDecay(kHadronicD);
265 pythia->SetForceDecay(kSemiElectronic);
268 pythia->SetForceDecay(kSemiMuonic);
273 pythia->SetMomentumRange(0,99999999);
274 pythia->SetPhiRange(0., 360.);
275 pythia->SetThetaRange(0,180);
278 pythia->SetYRange(-999,999);
281 pythia->SetYRange(-2,2);
284 pythia->SetYRange(1,6);
290 pythia->SetOrigin(0, 0, 0); // vertex position
291 pythia->SetSigma(0, 0, 5.3); // Sigma in (X,Y,Z) (cm) on IP position
292 pythia->SetCutVertexZ(1.); // Truncate at 1 sigma
293 pythia->SetVertexSmear(kPerEvent);
297 pythia->SetTrackingFlag(0);
298 // Specify GEANT tracking limits (Rmax, Zmax)
299 //gAlice->GetMCApp()->TrackingLimits(90.,1.0e10);
307 comment = comment.Append(" | L3 field 0.2 T");
308 } else if (mag == k4kG) {
309 comment = comment.Append(" | L3 field 0.4 T");
310 } else if (mag == k5kG) {
311 comment = comment.Append(" | L3 field 0.5 T");
313 printf("\n \n Comment: %s \n \n", comment.Data());
315 AliMagFMaps* field = new AliMagFMaps("Maps","Maps", 2, 1., 10., mag);
316 field->SetL3ConstField(0); //Using const. field in the barrel
318 gAlice->SetField(field);
321 // By default all ALICE is switched off
342 //=================== Alice BODY parameters =============================
343 AliBODY *BODY = new AliBODY("BODY","Alice envelop");
346 //=================== MAG parameters ============================
347 // --- Start with Magnet since detector layouts may be depending ---
348 // --- on the selected Magnet dimensions ---
349 AliMAG *MAG = new AliMAG("MAG","Magnet");
354 //=================== ABSO parameters ============================
355 AliABSO *ABSO = new AliABSOv3("ABSO","Muon Absorber");
359 //=================== DIPO parameters ============================
361 AliDIPO *DIPO = new AliDIPOv3("DIPO","Dipole version 3");
365 //=================== HALL parameters ============================
367 AliHALL *HALL = new AliHALLv3("HALL","Alice Hall");
372 //=================== FRAME parameters ============================
374 AliFRAME *FRAME = new AliFRAMEv2("FRAME","Space Frame");
384 //=================== SHIL parameters ============================
386 AliSHIL *SHIL = new AliSHILv3("SHIL","Shielding");
391 //=================== PIPE parameters ============================
393 AliPIPE *PIPE = new AliPIPEv3("PIPE","Beam Pipe");
398 //=================== ITS parameters ============================
400 AliITSvPPRasymmFMD *ITS = new AliITSvPPRasymmFMD("ITS","New ITS PPR detailed version with asymmetric services");
405 //============================ TPC parameters ===================
406 AliTPC *TPC = new AliTPCv2("TPC","Default");
411 //=================== TOF parameters ============================
412 AliTOF *TOF = new AliTOFv6T0("TOF","normal TOF");
416 //=================== HMPID parameters ===========================
417 AliHMPID *HMPID = new AliHMPIDv2("HMPID","normal HMPID");
423 //=================== ZDC parameters ============================
425 AliZDC *ZDC = new AliZDCv3("ZDC","normal ZDC");
429 //=================== ACORDE parameters ============================
431 AliACORDE *ACORDE = new AliACORDEv1("ACORDE","normal ACORDE");
435 //=================== TRD parameters ============================
437 AliTRD *TRD = new AliTRDv1("TRD","TRD slow simulator");
441 //=================== FMD parameters ============================
443 AliFMD *FMD = new AliFMDv0("FMD","normal FMD");
447 //=================== MUON parameters ===========================
448 AliMUON *MUON = new AliMUONv1("MUON","default");
451 //=================== PHOS parameters ===========================
454 AliPHOS *PHOS = new AliPHOSv1("PHOS","GPS2");
458 //=================== ACORDE parameters ===========================
461 AliACORDE *ACORDE = new AliACORDEv1("ACORDE","Normal ACORDEGPS2");
466 //=================== PMD parameters ============================
468 AliPMD *PMD = new AliPMDv1("PMD","normal PMD");
469 PMD->SetPAR(1., 1., 0.8, 0.02);
470 PMD->SetIN(6., 18., -580., 27., 27.);
471 PMD->SetGEO(0.0, 0.2, 4.);
472 PMD->SetPadSize(0.8, 1.0, 1.0, 1.5);
477 //=================== T0 parameters ============================
478 AliT0 *T0 = new AliT0v1("T0","T0 Detector");
486 AliGenPythia *PythiaHVQ(ProcessHvFl_t proc) {
488 AliGenPythia * gener = 0x0;
492 comment = comment.Append(" Charm in Pb-Pb at 5.5 TeV");
493 gener = new AliGenPythia(nEvts);
494 gener->SetProcess(kPyCharmPbPbMNR);
495 gener->SetStrucFunc(kCTEQ4L);
496 gener->SetPtHard(2.1,-1.0);
497 gener->SetEnergyCMS(5500.);
498 gener->SetNuclei(208,208);
501 comment = comment.Append(" Charm in p-Pb at 8.8 TeV");
502 gener = new AliGenPythia(nEvts);
503 gener->SetProcess(kPyCharmpPbMNR);
504 gener->SetStrucFunc(kCTEQ4L);
505 gener->SetPtHard(2.1,-1.0);
506 gener->SetEnergyCMS(8800.);
507 gener->SetProjectile("P",1,1);
508 gener->SetTarget("Pb",208,82);
511 comment = comment.Append(" Charm in pp at 14 TeV");
512 gener = new AliGenPythia(nEvts);
513 gener->SetProcess(kPyCharmppMNR);
514 gener->SetStrucFunc(kCTEQ4L);
515 gener->SetPtHard(2.1,-1.0);
516 gener->SetEnergyCMS(14000.);
518 case kCharmpp14000wmi:
519 comment = comment.Append(" Charm in pp at 14 TeV with mult. interactions");
520 gener = new AliGenPythia(-1);
521 gener->SetProcess(kPyCharmppMNRwmi);
522 gener->SetStrucFunc(kCTEQ5L);
523 gener->SetPtHard(ptHardMin,ptHardMax);
524 gener->SetEnergyCMS(14000.);
527 comment = comment.Append(" D0 in Pb-Pb at 5.5 TeV");
528 gener = new AliGenPythia(nEvts);
529 gener->SetProcess(kPyD0PbPbMNR);
530 gener->SetStrucFunc(kCTEQ4L);
531 gener->SetPtHard(2.1,-1.0);
532 gener->SetEnergyCMS(5500.);
533 gener->SetNuclei(208,208);
536 comment = comment.Append(" D0 in p-Pb at 8.8 TeV");
537 gener = new AliGenPythia(nEvts);
538 gener->SetProcess(kPyD0pPbMNR);
539 gener->SetStrucFunc(kCTEQ4L);
540 gener->SetPtHard(2.1,-1.0);
541 gener->SetEnergyCMS(8800.);
542 gener->SetProjectile("P",1,1);
543 gener->SetTarget("Pb",208,82);
546 comment = comment.Append(" D0 in pp at 14 TeV");
547 gener = new AliGenPythia(nEvts);
548 gener->SetProcess(kPyD0ppMNR);
549 gener->SetStrucFunc(kCTEQ4L);
550 gener->SetPtHard(2.1,-1.0);
551 gener->SetEnergyCMS(14000.);
554 comment = comment.Append(" DPlus in Pb-Pb at 5.5 TeV");
555 gener = new AliGenPythia(nEvts);
556 gener->SetProcess(kPyDPlusPbPbMNR);
557 gener->SetStrucFunc(kCTEQ4L);
558 gener->SetPtHard(2.1,-1.0);
559 gener->SetEnergyCMS(5500.);
560 gener->SetNuclei(208,208);
563 comment = comment.Append(" DPlus in p-Pb at 8.8 TeV");
564 gener = new AliGenPythia(nEvts);
565 gener->SetProcess(kPyDPluspPbMNR);
566 gener->SetStrucFunc(kCTEQ4L);
567 gener->SetPtHard(2.1,-1.0);
568 gener->SetEnergyCMS(8800.);
569 gener->SetProjectile("P",1,1);
570 gener->SetTarget("Pb",208,82);
573 comment = comment.Append(" DPlus in pp at 14 TeV");
574 gener = new AliGenPythia(nEvts);
575 gener->SetProcess(kPyDPlusppMNR);
576 gener->SetStrucFunc(kCTEQ4L);
577 gener->SetPtHard(2.1,-1.0);
578 gener->SetEnergyCMS(14000.);
580 case kDPlusStrangePbPb5500:
581 comment = comment.Append(" DPlusStrange in Pb-Pb at 5.5 TeV");
582 gener = new AliGenPythia(nEvts);
583 gener->SetProcess(kPyDPlusStrangePbPbMNR);
584 gener->SetStrucFunc(kCTEQ4L);
585 gener->SetPtHard(2.1,-1.0);
586 gener->SetEnergyCMS(5500.);
587 gener->SetNuclei(208,208);
589 case kDPlusStrangepPb8800:
590 comment = comment.Append(" DPlusStrange in p-Pb at 8.8 TeV");
591 gener = new AliGenPythia(nEvts);
592 gener->SetProcess(kPyDPlusStrangepPbMNR);
593 gener->SetStrucFunc(kCTEQ4L);
594 gener->SetPtHard(2.1,-1.0);
595 gener->SetEnergyCMS(8800.);
596 gener->SetProjectile("P",1,1);
597 gener->SetTarget("Pb",208,82);
599 case kDPlusStrangepp14000:
600 comment = comment.Append(" DPlusStrange in pp at 14 TeV");
601 gener = new AliGenPythia(nEvts);
602 gener->SetProcess(kPyDPlusStrangeppMNR);
603 gener->SetStrucFunc(kCTEQ4L);
604 gener->SetPtHard(2.1,-1.0);
605 gener->SetEnergyCMS(14000.);
607 case kBeautyPbPb5500:
608 comment = comment.Append(" Beauty in Pb-Pb at 5.5 TeV");
609 gener = new AliGenPythia(nEvts);
610 gener->SetProcess(kPyBeautyPbPbMNR);
611 gener->SetStrucFunc(kCTEQ4L);
612 gener->SetPtHard(2.75,-1.0);
613 gener->SetEnergyCMS(5500.);
614 gener->SetNuclei(208,208);
617 comment = comment.Append(" Beauty in p-Pb at 8.8 TeV");
618 gener = new AliGenPythia(nEvts);
619 gener->SetProcess(kPyBeautypPbMNR);
620 gener->SetStrucFunc(kCTEQ4L);
621 gener->SetPtHard(2.75,-1.0);
622 gener->SetEnergyCMS(8800.);
623 gener->SetProjectile("P",1,1);
624 gener->SetTarget("Pb",208,82);
627 comment = comment.Append(" Beauty in pp at 14 TeV");
628 gener = new AliGenPythia(nEvts);
629 gener->SetProcess(kPyBeautyppMNR);
630 gener->SetStrucFunc(kCTEQ4L);
631 gener->SetPtHard(2.75,-1.0);
632 gener->SetEnergyCMS(14000.);
634 case kBeautypp14000wmi:
635 comment = comment.Append(" Beauty in pp at 14 TeV with mult. interactions");
636 gener = new AliGenPythia(-1);
637 gener->SetProcess(kPyBeautyppMNRwmi);
638 gener->SetStrucFunc(kCTEQ5L);
639 gener->SetPtHard(ptHardMin,ptHardMax);
640 gener->SetEnergyCMS(14000.);
651 // Load Pythia related libraries
652 gSystem->Load("liblhapdf.so"); // Parton density functions
653 gSystem->Load("libEGPythia6.so"); // TGenerator interface
654 gSystem->Load("libpythia6.so"); // Pythia
655 gSystem->Load("libAliPythia6.so"); // ALICE specific implementations