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/AliABSOv0.h"
30 #include "STRUCT/AliDIPOv2.h"
31 #include "STRUCT/AliHALL.h"
32 #include "STRUCT/AliFRAMEv2.h"
33 #include "STRUCT/AliSHILv2.h"
34 #include "STRUCT/AliPIPEv0.h"
35 #include "ITS/AliITSvPPRasymmFMD.h"
36 #include "TPC/AliTPCv2.h"
37 #include "TOF/AliTOFv5T0.h"
38 #include "RICH/AliRICHv1.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 "START/AliSTARTv1.h"
46 #include "CRT/AliCRTv1.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 //=======================================================================
146 // Create the output file
149 AliRunLoader* rl=0x0;
151 cout<<"Config.C: Creating Run Loader ..."<<endl;
152 rl = AliRunLoader::Open("galice.root",
153 AliConfig::GetDefaultEventFolderName(),
157 gAlice->Fatal("Config.C","Can not instatiate the Run Loader");
160 rl->SetCompressionLevel(2);
161 rl->SetNumberOfEventsPerFile(3);
162 gAlice->SetRunLoader(rl);
164 // Set the trigger configuration
165 gAlice->SetTriggerDescriptor(TrigConfName[trig]);
166 cout<<"Trigger configuration is set to "<<TrigConfName[trig]<<endl;
169 //=======================================================================
170 // ************* STEERING parameters FOR ALICE SIMULATION **************
171 // --- Specify event type to be tracked through the ALICE setup
172 // --- All positions are in cm, angles in degrees, and P and E in GeV
175 gMC->SetProcess("DCAY",1);
176 gMC->SetProcess("PAIR",1);
177 gMC->SetProcess("COMP",1);
178 gMC->SetProcess("PHOT",1);
179 gMC->SetProcess("PFIS",0);
180 gMC->SetProcess("DRAY",0);
181 gMC->SetProcess("ANNI",1);
182 gMC->SetProcess("BREM",1);
183 gMC->SetProcess("MUNU",1);
184 gMC->SetProcess("CKOV",1);
185 gMC->SetProcess("HADR",1);
186 gMC->SetProcess("LOSS",2);
187 gMC->SetProcess("MULS",1);
188 gMC->SetProcess("RAYL",1);
190 Float_t cut = 1.e-3; // 1MeV cut by default
191 Float_t tofmax = 1.e10;
193 gMC->SetCut("CUTGAM", cut);
194 gMC->SetCut("CUTELE", cut);
195 gMC->SetCut("CUTNEU", cut);
196 gMC->SetCut("CUTHAD", cut);
197 gMC->SetCut("CUTMUO", cut);
198 gMC->SetCut("BCUTE", cut);
199 gMC->SetCut("BCUTM", cut);
200 gMC->SetCut("DCUTE", cut);
201 gMC->SetCut("DCUTM", cut);
202 gMC->SetCut("PPCUTM", cut);
203 gMC->SetCut("TOFMAX", tofmax);
208 // Set External decayer //
209 //======================//
210 TVirtualMCDecayer* decayer = new AliDecayerPythia();
215 decayer->SetForceDecay(kAll);
218 decayer->SetForceDecay(kHadronicD);
221 decayer->SetForceDecay(kSemiElectronic);
224 decayer->SetForceDecay(kSemiMuonic);
228 gMC->SetExternalDecayer(decayer);
230 //=========================//
231 // Generator Configuration //
232 //=========================//
233 AliGenPythia *pythia = PythiaHVQ(procHvFl);
235 pythia->SetFeedDownHigherFamily(kFALSE);
236 // Stack filling option
237 if(!stars) pythia->SetStackFillOpt(AliGenPythia::kParentSelection);
239 if(nEvts>0) pythia->SetCountMode(AliGenPythia::kCountParents);
244 pythia->SetForceDecay(kAll);
247 pythia->SetForceDecay(kHadronicD);
250 pythia->SetForceDecay(kSemiElectronic);
253 pythia->SetForceDecay(kSemiMuonic);
258 pythia->SetMomentumRange(0,99999999);
259 pythia->SetPhiRange(0., 360.);
260 pythia->SetThetaRange(0,180);
263 pythia->SetYRange(-999,999);
266 pythia->SetYRange(-2,2);
269 pythia->SetYRange(1,6);
275 pythia->SetOrigin(0, 0, 0); // vertex position
276 pythia->SetSigma(0, 0, 5.3); // Sigma in (X,Y,Z) (cm) on IP position
277 pythia->SetCutVertexZ(1.); // Truncate at 1 sigma
278 pythia->SetVertexSmear(kPerEvent);
282 pythia->SetTrackingFlag(0);
283 // Specify GEANT tracking limits (Rmax, Zmax)
284 //gAlice->GetMCApp()->TrackingLimits(90.,1.0e10);
292 comment = comment.Append(" | L3 field 0.2 T");
293 } else if (mag == k4kG) {
294 comment = comment.Append(" | L3 field 0.4 T");
295 } else if (mag == k5kG) {
296 comment = comment.Append(" | L3 field 0.5 T");
298 printf("\n \n Comment: %s \n \n", comment.Data());
300 AliMagFMaps* field = new AliMagFMaps("Maps","Maps", 2, 1., 10., mag);
301 field->SetL3ConstField(0); //Using const. field in the barrel
303 gAlice->SetField(field);
306 // By default all ALICE is switched off
327 //=================== Alice BODY parameters =============================
328 AliBODY *BODY = new AliBODY("BODY","Alice envelop");
331 //=================== MAG parameters ============================
332 // --- Start with Magnet since detector layouts may be depending ---
333 // --- on the selected Magnet dimensions ---
334 AliMAG *MAG = new AliMAG("MAG","Magnet");
339 //=================== ABSO parameters ============================
340 AliABSO *ABSO = new AliABSOv0("ABSO","Muon Absorber");
344 //=================== DIPO parameters ============================
346 AliDIPO *DIPO = new AliDIPOv2("DIPO","Dipole version 2");
350 //=================== HALL parameters ============================
352 AliHALL *HALL = new AliHALL("HALL","Alice Hall");
357 //=================== FRAME parameters ============================
359 AliFRAME *FRAME = new AliFRAMEv2("FRAME","Space Frame");
364 //=================== SHIL parameters ============================
366 AliSHIL *SHIL = new AliSHILv2("SHIL","Shielding");
371 //=================== PIPE parameters ============================
373 AliPIPE *PIPE = new AliPIPEv0("PIPE","Beam Pipe");
379 //=================== ITS parameters ============================
381 // As the innermost detector in ALICE, the Inner Tracking System "impacts" on
382 // almost all other detectors. This involves the fact that the ITS geometry
383 // still has several options to be followed in parallel in order to determine
384 // the best set-up which minimizes the induced background. All the geometries
385 // available to date are described in the following. Read carefully the comments
386 // and use the default version (the only one uncommented) unless you are making
387 // comparisons and you know what you are doing. In this case just uncomment the
388 // ITS geometry you want to use and run Aliroot.
390 // Detailed geometries:
393 //AliITS *ITS = new AliITSv5symm("ITS","Updated ITS TDR detailed version with symmetric services");
395 //AliITS *ITS = new AliITSv5asymm("ITS","Updates ITS TDR detailed version with asymmetric services");
397 AliITSvPPRasymmFMD *ITS = new AliITSvPPRasymmFMD("ITS","New ITS PPR detailed version with asymmetric services");
398 ITS->SetMinorVersion(2); // don't touch this parameter if you're not an ITS developer
399 ITS->SetReadDet(kFALSE); // don't touch this parameter if you're not an ITS developer
400 ITS->SetWriteDet("$ALICE_ROOT/ITS/ITSgeometry_vPPRasymm2.det"); // don't touch this parameter if you're not an ITS developer
401 ITS->SetThicknessDet1(200.); // detector thickness on layer 1 must be in the range [150,300]
402 ITS->SetThicknessDet2(200.); // detector thickness on layer 2 must be in the range [150,300]
403 ITS->SetThicknessChip1(200.); // chip thickness on layer 1 must be in the range [100,300]
404 ITS->SetThicknessChip2(200.); // chip thickness on layer 2 must be in the range [100,300]
405 ITS->SetRails(1); // 1 --> rails in ; 0 --> rails out
406 ITS->SetCoolingFluid(1); // 1 --> water ; 0 --> freon
408 //AliITSvPPRsymm *ITS = new AliITSvPPRsymm("ITS","New ITS PPR detailed version with symmetric services");
409 //ITS->SetMinorVersion(2); // don't touch this parameter if you're not an ITS developer
410 //ITS->SetReadDet(kFALSE); // don't touch this parameter if you're not an ITS developer
411 //ITS->SetWriteDet("$ALICE_ROOT/ITS/ITSgeometry_vPPRsymm2.det"); // don't touch this parameter if you're not an ITS developer
412 //ITS->SetThicknessDet1(300.); // detector thickness on layer 1 must be in the range [150,300]
413 //ITS->SetThicknessDet2(300.); // detector thickness on layer 2 must be in the range [150,300]
414 //ITS->SetThicknessChip1(300.); // chip thickness on layer 1 must be in the range [100,300]
415 //ITS->SetThicknessChip2(300.); // chip thickness on layer 2 must be in the range [100,300]
416 //ITS->SetRails(1); // 1 --> rails in ; 0 --> rails out
417 //ITS->SetCoolingFluid(1); // 1 --> water ; 0 --> freon
420 // Coarse geometries (warning: no hits are produced with these coarse geometries and they unuseful
421 // for reconstruction !):
424 //AliITSvPPRcoarseasymm *ITS = new AliITSvPPRcoarseasymm("ITS","New ITS PPR coarse version with asymmetric services");
425 //ITS->SetRails(1); // 1 --> rails in ; 0 --> rails out
426 //ITS->SetSupportMaterial(0); // 0 --> Copper ; 1 --> Aluminum ; 2 --> Carbon
428 //AliITS *ITS = new AliITSvPPRcoarsesymm("ITS","New ITS PPR coarse version with symmetric services");
429 //ITS->SetRails(1); // 1 --> rails in ; 0 --> rails out
430 //ITS->SetSupportMaterial(0); // 0 --> Copper ; 1 --> Aluminum ; 2 --> Carbon
434 // Geant3 <-> EUCLID conversion
435 // ============================
437 // SetEUCLID is a flag to output (=1) or not to output (=0) both geometry and
438 // media to two ASCII files (called by default ITSgeometry.euc and
439 // ITSgeometry.tme) in a format understandable to the CAD system EUCLID.
440 // The default (=0) means that you dont want to use this facility.
447 //============================ TPC parameters ===================
448 AliTPC *TPC = new AliTPCv2("TPC","Default");
453 //=================== TOF parameters ============================
454 AliTOF *TOF = new AliTOFv5T0("TOF","normal TOF");
458 //=================== RICH parameters ===========================
459 AliRICH *RICH = new AliRICHv1("RICH","normal RICH");
465 //=================== ZDC parameters ============================
467 AliZDC *ZDC = new AliZDCv1("ZDC","normal ZDC");
471 //=================== CRT parameters ============================
473 AliCRT *CRT = new AliCRTv1("CRT","normal CRT");
477 //=================== TRD parameters ============================
479 AliTRD *TRD = new AliTRDv1("TRD","TRD slow simulator");
481 // Select the gas mixture (0: 97% Xe + 3% isobutane, 1: 90% Xe + 10% CO2)
485 AliTRDsim *TRDsim = TRD->CreateTR();
489 //=================== FMD parameters ============================
491 AliFMD *FMD = new AliFMDv0("FMD","normal FMD");
495 //=================== MUON parameters ===========================
496 AliMUON *MUON = new AliMUONv1("MUON","default");
499 //=================== PHOS parameters ===========================
502 AliPHOS *PHOS = new AliPHOSv1("PHOS","GPS2");
506 //=================== CRT parameters ===========================
509 AliCRT *CRT = new AliCRTv1("CRT","Normal CRTGPS2");
514 //=================== PMD parameters ============================
516 AliPMD *PMD = new AliPMDv1("PMD","normal PMD");
517 PMD->SetPAR(1., 1., 0.8, 0.02);
518 PMD->SetIN(6., 18., -580., 27., 27.);
519 PMD->SetGEO(0.0, 0.2, 4.);
520 PMD->SetPadSize(0.8, 1.0, 1.0, 1.5);
525 //=================== START parameters ============================
526 AliSTART *START = new AliSTARTv1("START","START Detector");
534 AliGenPythia *PythiaHVQ(ProcessHvFl_t proc) {
536 AliGenPythia * gener = 0x0;
540 comment = comment.Append(" Charm in Pb-Pb at 5.5 TeV");
541 gener = new AliGenPythia(nEvts);
542 gener->SetProcess(kPyCharmPbPbMNR);
543 gener->SetStrucFunc(kCTEQ4L);
544 gener->SetPtHard(2.1,-1.0);
545 gener->SetEnergyCMS(5500.);
546 gener->SetNuclei(208,208);
549 comment = comment.Append(" Charm in p-Pb at 8.8 TeV");
550 gener = new AliGenPythia(nEvts);
551 gener->SetProcess(kPyCharmpPbMNR);
552 gener->SetStrucFunc(kCTEQ4L);
553 gener->SetPtHard(2.1,-1.0);
554 gener->SetEnergyCMS(8800.);
555 gener->SetProjectile("P",1,1);
556 gener->SetTarget("Pb",208,82);
559 comment = comment.Append(" Charm in pp at 14 TeV");
560 gener = new AliGenPythia(nEvts);
561 gener->SetProcess(kPyCharmppMNR);
562 gener->SetStrucFunc(kCTEQ4L);
563 gener->SetPtHard(2.1,-1.0);
564 gener->SetEnergyCMS(14000.);
566 case kCharmpp14000wmi:
567 comment = comment.Append(" Charm in pp at 14 TeV with mult. interactions");
568 gener = new AliGenPythia(-1);
569 gener->SetProcess(kPyCharmppMNRwmi);
570 gener->SetStrucFunc(kCTEQ5L);
571 gener->SetPtHard(ptHardMin,ptHardMax);
572 gener->SetEnergyCMS(14000.);
575 comment = comment.Append(" D0 in Pb-Pb at 5.5 TeV");
576 gener = new AliGenPythia(nEvts);
577 gener->SetProcess(kPyD0PbPbMNR);
578 gener->SetStrucFunc(kCTEQ4L);
579 gener->SetPtHard(2.1,-1.0);
580 gener->SetEnergyCMS(5500.);
581 gener->SetNuclei(208,208);
584 comment = comment.Append(" D0 in p-Pb at 8.8 TeV");
585 gener = new AliGenPythia(nEvts);
586 gener->SetProcess(kPyD0pPbMNR);
587 gener->SetStrucFunc(kCTEQ4L);
588 gener->SetPtHard(2.1,-1.0);
589 gener->SetEnergyCMS(8800.);
590 gener->SetProjectile("P",1,1);
591 gener->SetTarget("Pb",208,82);
594 comment = comment.Append(" D0 in pp at 14 TeV");
595 gener = new AliGenPythia(nEvts);
596 gener->SetProcess(kPyD0ppMNR);
597 gener->SetStrucFunc(kCTEQ4L);
598 gener->SetPtHard(2.1,-1.0);
599 gener->SetEnergyCMS(14000.);
602 comment = comment.Append(" DPlus in Pb-Pb at 5.5 TeV");
603 gener = new AliGenPythia(nEvts);
604 gener->SetProcess(kPyDPlusPbPbMNR);
605 gener->SetStrucFunc(kCTEQ4L);
606 gener->SetPtHard(2.1,-1.0);
607 gener->SetEnergyCMS(5500.);
608 gener->SetNuclei(208,208);
611 comment = comment.Append(" DPlus in p-Pb at 8.8 TeV");
612 gener = new AliGenPythia(nEvts);
613 gener->SetProcess(kPyDPluspPbMNR);
614 gener->SetStrucFunc(kCTEQ4L);
615 gener->SetPtHard(2.1,-1.0);
616 gener->SetEnergyCMS(8800.);
617 gener->SetProjectile("P",1,1);
618 gener->SetTarget("Pb",208,82);
621 comment = comment.Append(" DPlus in pp at 14 TeV");
622 gener = new AliGenPythia(nEvts);
623 gener->SetProcess(kPyDPlusppMNR);
624 gener->SetStrucFunc(kCTEQ4L);
625 gener->SetPtHard(2.1,-1.0);
626 gener->SetEnergyCMS(14000.);
628 case kDPlusStrangePbPb5500:
629 comment = comment.Append(" DPlusStrange in Pb-Pb at 5.5 TeV");
630 gener = new AliGenPythia(nEvts);
631 gener->SetProcess(kPyDPlusStrangePbPbMNR);
632 gener->SetStrucFunc(kCTEQ4L);
633 gener->SetPtHard(2.1,-1.0);
634 gener->SetEnergyCMS(5500.);
635 gener->SetNuclei(208,208);
637 case kDPlusStrangepPb8800:
638 comment = comment.Append(" DPlusStrange in p-Pb at 8.8 TeV");
639 gener = new AliGenPythia(nEvts);
640 gener->SetProcess(kPyDPlusStrangepPbMNR);
641 gener->SetStrucFunc(kCTEQ4L);
642 gener->SetPtHard(2.1,-1.0);
643 gener->SetEnergyCMS(8800.);
644 gener->SetProjectile("P",1,1);
645 gener->SetTarget("Pb",208,82);
647 case kDPlusStrangepp14000:
648 comment = comment.Append(" DPlusStrange in pp at 14 TeV");
649 gener = new AliGenPythia(nEvts);
650 gener->SetProcess(kPyDPlusStrangeppMNR);
651 gener->SetStrucFunc(kCTEQ4L);
652 gener->SetPtHard(2.1,-1.0);
653 gener->SetEnergyCMS(14000.);
655 case kBeautyPbPb5500:
656 comment = comment.Append(" Beauty in Pb-Pb at 5.5 TeV");
657 gener = new AliGenPythia(nEvts);
658 gener->SetProcess(kPyBeautyPbPbMNR);
659 gener->SetStrucFunc(kCTEQ4L);
660 gener->SetPtHard(2.75,-1.0);
661 gener->SetEnergyCMS(5500.);
662 gener->SetNuclei(208,208);
665 comment = comment.Append(" Beauty in p-Pb at 8.8 TeV");
666 gener = new AliGenPythia(nEvts);
667 gener->SetProcess(kPyBeautypPbMNR);
668 gener->SetStrucFunc(kCTEQ4L);
669 gener->SetPtHard(2.75,-1.0);
670 gener->SetEnergyCMS(8800.);
671 gener->SetProjectile("P",1,1);
672 gener->SetTarget("Pb",208,82);
675 comment = comment.Append(" Beauty in pp at 14 TeV");
676 gener = new AliGenPythia(nEvts);
677 gener->SetProcess(kPyBeautyppMNR);
678 gener->SetStrucFunc(kCTEQ4L);
679 gener->SetPtHard(2.75,-1.0);
680 gener->SetEnergyCMS(14000.);
682 case kBeautypp14000wmi:
683 comment = comment.Append(" Beauty in pp at 14 TeV with mult. interactions");
684 gener = new AliGenPythia(-1);
685 gener->SetProcess(kPyBeautyppMNRwmi);
686 gener->SetStrucFunc(kCTEQ5L);
687 gener->SetPtHard(ptHardMin,ptHardMax);
688 gener->SetEnergyCMS(14000.);