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/AliHMPIDv1.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");
386 //=================== ITS parameters ============================
388 // As the innermost detector in ALICE, the Inner Tracking System "impacts" on
389 // almost all other detectors. This involves the fact that the ITS geometry
390 // still has several options to be followed in parallel in order to determine
391 // the best set-up which minimizes the induced background. All the geometries
392 // available to date are described in the following. Read carefully the comments
393 // and use the default version (the only one uncommented) unless you are making
394 // comparisons and you know what you are doing. In this case just uncomment the
395 // ITS geometry you want to use and run Aliroot.
397 // Detailed geometries:
400 //AliITS *ITS = new AliITSv5symm("ITS","Updated ITS TDR detailed version with symmetric services");
402 //AliITS *ITS = new AliITSv5asymm("ITS","Updates ITS TDR detailed version with asymmetric services");
404 AliITSvPPRasymmFMD *ITS = new AliITSvPPRasymmFMD("ITS","New ITS PPR detailed version with asymmetric services");
405 ITS->SetMinorVersion(2); // don't touch this parameter if you're not an ITS developer
406 ITS->SetReadDet(kFALSE); // don't touch this parameter if you're not an ITS developer
407 ITS->SetWriteDet("$ALICE_ROOT/ITS/ITSgeometry_vPPRasymm2.det"); // don't touch this parameter if you're not an ITS developer
408 ITS->SetThicknessDet1(200.); // detector thickness on layer 1 must be in the range [150,300]
409 ITS->SetThicknessDet2(200.); // detector thickness on layer 2 must be in the range [150,300]
410 ITS->SetThicknessChip1(150.); // chip thickness on layer 1 must be in the range [100,300]
411 ITS->SetThicknessChip2(150.); // chip thickness on layer 2 must be in the range [100,300]
412 ITS->SetRails(1); // 1 --> rails in ; 0 --> rails out
413 ITS->SetCoolingFluid(1); // 1 --> water ; 0 --> freon
415 // Coarse geometries (warning: no hits are produced with these coarse geometries and they unuseful
416 // for reconstruction !):
419 //AliITSvPPRcoarseasymm *ITS = new AliITSvPPRcoarseasymm("ITS","New ITS PPR coarse version with asymmetric services");
420 //ITS->SetRails(1); // 1 --> rails in ; 0 --> rails out
421 //ITS->SetSupportMaterial(0); // 0 --> Copper ; 1 --> Aluminum ; 2 --> Carbon
423 //AliITS *ITS = new AliITSvPPRcoarsesymm("ITS","New ITS PPR coarse version with symmetric services");
424 //ITS->SetRails(1); // 1 --> rails in ; 0 --> rails out
425 //ITS->SetSupportMaterial(0); // 0 --> Copper ; 1 --> Aluminum ; 2 --> Carbon
429 // Geant3 <-> EUCLID conversion
430 // ============================
432 // SetEUCLID is a flag to output (=1) or not to output (=0) both geometry and
433 // media to two ASCII files (called by default ITSgeometry.euc and
434 // ITSgeometry.tme) in a format understandable to the CAD system EUCLID.
435 // The default (=0) means that you dont want to use this facility.
442 //============================ TPC parameters ===================
443 AliTPC *TPC = new AliTPCv2("TPC","Default");
448 //=================== TOF parameters ============================
449 AliTOF *TOF = new AliTOFv6T0("TOF","normal TOF");
453 //=================== HMPID parameters ===========================
454 AliHMPID *HMPID = new AliHMPIDv1("HMPID","normal HMPID");
460 //=================== ZDC parameters ============================
462 AliZDC *ZDC = new AliZDCv1("ZDC","normal ZDC");
466 //=================== ACORDE parameters ============================
468 AliACORDE *ACORDE = new AliACORDEv1("ACORDE","normal ACORDE");
472 //=================== TRD parameters ============================
474 AliTRD *TRD = new AliTRDv1("TRD","TRD slow simulator");
478 //=================== FMD parameters ============================
480 AliFMD *FMD = new AliFMDv0("FMD","normal FMD");
484 //=================== MUON parameters ===========================
485 AliMUON *MUON = new AliMUONv1("MUON","default");
488 //=================== PHOS parameters ===========================
491 AliPHOS *PHOS = new AliPHOSv1("PHOS","GPS2");
495 //=================== ACORDE parameters ===========================
498 AliACORDE *ACORDE = new AliACORDEv1("ACORDE","Normal ACORDEGPS2");
503 //=================== PMD parameters ============================
505 AliPMD *PMD = new AliPMDv1("PMD","normal PMD");
506 PMD->SetPAR(1., 1., 0.8, 0.02);
507 PMD->SetIN(6., 18., -580., 27., 27.);
508 PMD->SetGEO(0.0, 0.2, 4.);
509 PMD->SetPadSize(0.8, 1.0, 1.0, 1.5);
514 //=================== T0 parameters ============================
515 AliT0 *T0 = new AliT0v1("T0","T0 Detector");
523 AliGenPythia *PythiaHVQ(ProcessHvFl_t proc) {
525 AliGenPythia * gener = 0x0;
529 comment = comment.Append(" Charm in Pb-Pb at 5.5 TeV");
530 gener = new AliGenPythia(nEvts);
531 gener->SetProcess(kPyCharmPbPbMNR);
532 gener->SetStrucFunc(kCTEQ4L);
533 gener->SetPtHard(2.1,-1.0);
534 gener->SetEnergyCMS(5500.);
535 gener->SetNuclei(208,208);
538 comment = comment.Append(" Charm in p-Pb at 8.8 TeV");
539 gener = new AliGenPythia(nEvts);
540 gener->SetProcess(kPyCharmpPbMNR);
541 gener->SetStrucFunc(kCTEQ4L);
542 gener->SetPtHard(2.1,-1.0);
543 gener->SetEnergyCMS(8800.);
544 gener->SetProjectile("P",1,1);
545 gener->SetTarget("Pb",208,82);
548 comment = comment.Append(" Charm in pp at 14 TeV");
549 gener = new AliGenPythia(nEvts);
550 gener->SetProcess(kPyCharmppMNR);
551 gener->SetStrucFunc(kCTEQ4L);
552 gener->SetPtHard(2.1,-1.0);
553 gener->SetEnergyCMS(14000.);
555 case kCharmpp14000wmi:
556 comment = comment.Append(" Charm in pp at 14 TeV with mult. interactions");
557 gener = new AliGenPythia(-1);
558 gener->SetProcess(kPyCharmppMNRwmi);
559 gener->SetStrucFunc(kCTEQ5L);
560 gener->SetPtHard(ptHardMin,ptHardMax);
561 gener->SetEnergyCMS(14000.);
564 comment = comment.Append(" D0 in Pb-Pb at 5.5 TeV");
565 gener = new AliGenPythia(nEvts);
566 gener->SetProcess(kPyD0PbPbMNR);
567 gener->SetStrucFunc(kCTEQ4L);
568 gener->SetPtHard(2.1,-1.0);
569 gener->SetEnergyCMS(5500.);
570 gener->SetNuclei(208,208);
573 comment = comment.Append(" D0 in p-Pb at 8.8 TeV");
574 gener = new AliGenPythia(nEvts);
575 gener->SetProcess(kPyD0pPbMNR);
576 gener->SetStrucFunc(kCTEQ4L);
577 gener->SetPtHard(2.1,-1.0);
578 gener->SetEnergyCMS(8800.);
579 gener->SetProjectile("P",1,1);
580 gener->SetTarget("Pb",208,82);
583 comment = comment.Append(" D0 in pp at 14 TeV");
584 gener = new AliGenPythia(nEvts);
585 gener->SetProcess(kPyD0ppMNR);
586 gener->SetStrucFunc(kCTEQ4L);
587 gener->SetPtHard(2.1,-1.0);
588 gener->SetEnergyCMS(14000.);
591 comment = comment.Append(" DPlus in Pb-Pb at 5.5 TeV");
592 gener = new AliGenPythia(nEvts);
593 gener->SetProcess(kPyDPlusPbPbMNR);
594 gener->SetStrucFunc(kCTEQ4L);
595 gener->SetPtHard(2.1,-1.0);
596 gener->SetEnergyCMS(5500.);
597 gener->SetNuclei(208,208);
600 comment = comment.Append(" DPlus in p-Pb at 8.8 TeV");
601 gener = new AliGenPythia(nEvts);
602 gener->SetProcess(kPyDPluspPbMNR);
603 gener->SetStrucFunc(kCTEQ4L);
604 gener->SetPtHard(2.1,-1.0);
605 gener->SetEnergyCMS(8800.);
606 gener->SetProjectile("P",1,1);
607 gener->SetTarget("Pb",208,82);
610 comment = comment.Append(" DPlus in pp at 14 TeV");
611 gener = new AliGenPythia(nEvts);
612 gener->SetProcess(kPyDPlusppMNR);
613 gener->SetStrucFunc(kCTEQ4L);
614 gener->SetPtHard(2.1,-1.0);
615 gener->SetEnergyCMS(14000.);
617 case kDPlusStrangePbPb5500:
618 comment = comment.Append(" DPlusStrange in Pb-Pb at 5.5 TeV");
619 gener = new AliGenPythia(nEvts);
620 gener->SetProcess(kPyDPlusStrangePbPbMNR);
621 gener->SetStrucFunc(kCTEQ4L);
622 gener->SetPtHard(2.1,-1.0);
623 gener->SetEnergyCMS(5500.);
624 gener->SetNuclei(208,208);
626 case kDPlusStrangepPb8800:
627 comment = comment.Append(" DPlusStrange in p-Pb at 8.8 TeV");
628 gener = new AliGenPythia(nEvts);
629 gener->SetProcess(kPyDPlusStrangepPbMNR);
630 gener->SetStrucFunc(kCTEQ4L);
631 gener->SetPtHard(2.1,-1.0);
632 gener->SetEnergyCMS(8800.);
633 gener->SetProjectile("P",1,1);
634 gener->SetTarget("Pb",208,82);
636 case kDPlusStrangepp14000:
637 comment = comment.Append(" DPlusStrange in pp at 14 TeV");
638 gener = new AliGenPythia(nEvts);
639 gener->SetProcess(kPyDPlusStrangeppMNR);
640 gener->SetStrucFunc(kCTEQ4L);
641 gener->SetPtHard(2.1,-1.0);
642 gener->SetEnergyCMS(14000.);
644 case kBeautyPbPb5500:
645 comment = comment.Append(" Beauty in Pb-Pb at 5.5 TeV");
646 gener = new AliGenPythia(nEvts);
647 gener->SetProcess(kPyBeautyPbPbMNR);
648 gener->SetStrucFunc(kCTEQ4L);
649 gener->SetPtHard(2.75,-1.0);
650 gener->SetEnergyCMS(5500.);
651 gener->SetNuclei(208,208);
654 comment = comment.Append(" Beauty in p-Pb at 8.8 TeV");
655 gener = new AliGenPythia(nEvts);
656 gener->SetProcess(kPyBeautypPbMNR);
657 gener->SetStrucFunc(kCTEQ4L);
658 gener->SetPtHard(2.75,-1.0);
659 gener->SetEnergyCMS(8800.);
660 gener->SetProjectile("P",1,1);
661 gener->SetTarget("Pb",208,82);
664 comment = comment.Append(" Beauty in pp at 14 TeV");
665 gener = new AliGenPythia(nEvts);
666 gener->SetProcess(kPyBeautyppMNR);
667 gener->SetStrucFunc(kCTEQ4L);
668 gener->SetPtHard(2.75,-1.0);
669 gener->SetEnergyCMS(14000.);
671 case kBeautypp14000wmi:
672 comment = comment.Append(" Beauty in pp at 14 TeV with mult. interactions");
673 gener = new AliGenPythia(-1);
674 gener->SetProcess(kPyBeautyppMNRwmi);
675 gener->SetStrucFunc(kCTEQ5L);
676 gener->SetPtHard(ptHardMin,ptHardMax);
677 gener->SetEnergyCMS(14000.);