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>
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 ---
74 AliGenPythia *PythiaHVQ(ProcessHvFl_t proc);
77 // This part for configuration
78 static ProcessHvFl_t procHvFl = kCharmPbPb5500;
79 static DecayHvFl_t decHvFl = kNature;
80 static YCut_t ycut = kFull;
81 static Mag_t mag = k5kG;
82 // nEvts = -1 : you get 1 QQbar pair and all the fragmentation and
84 // nEvts = N>0 : you get N charm / beauty Hadrons
86 // stars = kTRUE : all heavy resonances and their decay stored
87 // = kFALSE: only final heavy hadrons and their decays stored
90 // To be used only with kCharmppMNRwmi and kBeautyppMNRwmi
91 // To get a "reasonable" agreement with MNR results, events have to be
92 // generated with the minimum ptHard set to 2.76 GeV.
93 // To get a "perfect" agreement with MNR results, events have to be
94 // generated in four ptHard bins with the following relative
106 Float_t ptHardMin = 2.76;
107 Float_t ptHardMax = -1.;
111 static TString comment;
116 //========================//
117 // Set Random Number seed //
118 //========================//
120 UInt_t curtime=dt.Get();
121 UInt_t procid=gSystem->GetPid();
122 UInt_t seed=curtime-procid;
124 // gRandom->SetSeed(seed);
125 // cerr<<"Seed for random number generation= "<<seed<<endl;
126 gRandom->SetSeed(12345);
129 // libraries required by geant321
130 #if defined(__CINT__)
131 gSystem->Load("libgeant321");
134 new TGeant3TGeo("C++ Interface to Geant3");
136 //=======================================================================
137 // Create the output file
140 AliRunLoader* rl=0x0;
142 cout<<"Config.C: Creating Run Loader ..."<<endl;
143 rl = AliRunLoader::Open("galice.root",
144 AliConfig::GetDefaultEventFolderName(),
148 gAlice->Fatal("Config.C","Can not instatiate the Run Loader");
151 rl->SetCompressionLevel(2);
152 rl->SetNumberOfEventsPerFile(3);
153 gAlice->SetRunLoader(rl);
156 //=======================================================================
157 // ************* STEERING parameters FOR ALICE SIMULATION **************
158 // --- Specify event type to be tracked through the ALICE setup
159 // --- All positions are in cm, angles in degrees, and P and E in GeV
162 gMC->SetProcess("DCAY",1);
163 gMC->SetProcess("PAIR",1);
164 gMC->SetProcess("COMP",1);
165 gMC->SetProcess("PHOT",1);
166 gMC->SetProcess("PFIS",0);
167 gMC->SetProcess("DRAY",0);
168 gMC->SetProcess("ANNI",1);
169 gMC->SetProcess("BREM",1);
170 gMC->SetProcess("MUNU",1);
171 gMC->SetProcess("CKOV",1);
172 gMC->SetProcess("HADR",1);
173 gMC->SetProcess("LOSS",2);
174 gMC->SetProcess("MULS",1);
175 gMC->SetProcess("RAYL",1);
177 Float_t cut = 1.e-3; // 1MeV cut by default
178 Float_t tofmax = 1.e10;
180 gMC->SetCut("CUTGAM", cut);
181 gMC->SetCut("CUTELE", cut);
182 gMC->SetCut("CUTNEU", cut);
183 gMC->SetCut("CUTHAD", cut);
184 gMC->SetCut("CUTMUO", cut);
185 gMC->SetCut("BCUTE", cut);
186 gMC->SetCut("BCUTM", cut);
187 gMC->SetCut("DCUTE", cut);
188 gMC->SetCut("DCUTM", cut);
189 gMC->SetCut("PPCUTM", cut);
190 gMC->SetCut("TOFMAX", tofmax);
195 // Set External decayer //
196 //======================//
197 TVirtualMCDecayer* decayer = new AliDecayerPythia();
202 decayer->SetForceDecay(kAll);
205 decayer->SetForceDecay(kHadronicD);
208 decayer->SetForceDecay(kSemiElectronic);
211 decayer->SetForceDecay(kSemiMuonic);
215 gMC->SetExternalDecayer(decayer);
217 //=========================//
218 // Generator Configuration //
219 //=========================//
220 AliGenPythia *pythia = PythiaHVQ(procHvFl);
222 pythia->SetFeedDownHigherFamily(kFALSE);
223 // Stack filling option
224 if(!stars) pythia->SetStackFillOpt(AliGenPythia::kParentSelection);
226 if(nEvts>0) pythia->SetCountMode(AliGenPythia::kCountParents);
231 pythia->SetForceDecay(kAll);
234 pythia->SetForceDecay(kHadronicD);
237 pythia->SetForceDecay(kSemiElectronic);
240 pythia->SetForceDecay(kSemiMuonic);
245 pythia->SetMomentumRange(0,99999999);
246 pythia->SetPhiRange(0., 360.);
247 pythia->SetThetaRange(0,180);
250 pythia->SetYRange(-999,999);
253 pythia->SetYRange(-2,2);
256 pythia->SetYRange(1,6);
262 pythia->SetOrigin(0, 0, 0); // vertex position
263 pythia->SetSigma(0, 0, 5.3); // Sigma in (X,Y,Z) (cm) on IP position
264 pythia->SetCutVertexZ(1.); // Truncate at 1 sigma
265 pythia->SetVertexSmear(kPerEvent);
269 pythia->SetTrackingFlag(0);
270 // Specify GEANT tracking limits (Rmax, Zmax)
271 //gAlice->GetMCApp()->TrackingLimits(90.,1.0e10);
279 comment = comment.Append(" | L3 field 0.2 T");
280 } else if (mag == k4kG) {
281 comment = comment.Append(" | L3 field 0.4 T");
282 } else if (mag == k5kG) {
283 comment = comment.Append(" | L3 field 0.5 T");
285 printf("\n \n Comment: %s \n \n", comment.Data());
287 AliMagFMaps* field = new AliMagFMaps("Maps","Maps", 2, 1., 10., mag);
288 field->SetL3ConstField(0); //Using const. field in the barrel
290 gAlice->SetField(field);
293 // By default all ALICE is switched off
314 //=================== Alice BODY parameters =============================
315 AliBODY *BODY = new AliBODY("BODY","Alice envelop");
318 //=================== MAG parameters ============================
319 // --- Start with Magnet since detector layouts may be depending ---
320 // --- on the selected Magnet dimensions ---
321 AliMAG *MAG = new AliMAG("MAG","Magnet");
326 //=================== ABSO parameters ============================
327 AliABSO *ABSO = new AliABSOv0("ABSO","Muon Absorber");
331 //=================== DIPO parameters ============================
333 AliDIPO *DIPO = new AliDIPOv2("DIPO","Dipole version 2");
337 //=================== HALL parameters ============================
339 AliHALL *HALL = new AliHALL("HALL","Alice Hall");
344 //=================== FRAME parameters ============================
346 AliFRAME *FRAME = new AliFRAMEv2("FRAME","Space Frame");
351 //=================== SHIL parameters ============================
353 AliSHIL *SHIL = new AliSHILv2("SHIL","Shielding");
358 //=================== PIPE parameters ============================
360 AliPIPE *PIPE = new AliPIPEv0("PIPE","Beam Pipe");
366 //=================== ITS parameters ============================
368 // As the innermost detector in ALICE, the Inner Tracking System "impacts" on
369 // almost all other detectors. This involves the fact that the ITS geometry
370 // still has several options to be followed in parallel in order to determine
371 // the best set-up which minimizes the induced background. All the geometries
372 // available to date are described in the following. Read carefully the comments
373 // and use the default version (the only one uncommented) unless you are making
374 // comparisons and you know what you are doing. In this case just uncomment the
375 // ITS geometry you want to use and run Aliroot.
377 // Detailed geometries:
380 //AliITS *ITS = new AliITSv5symm("ITS","Updated ITS TDR detailed version with symmetric services");
382 //AliITS *ITS = new AliITSv5asymm("ITS","Updates ITS TDR detailed version with asymmetric services");
384 AliITSvPPRasymmFMD *ITS = new AliITSvPPRasymmFMD("ITS","New ITS PPR detailed version with asymmetric services");
385 ITS->SetMinorVersion(2); // don't touch this parameter if you're not an ITS developer
386 ITS->SetReadDet(kFALSE); // don't touch this parameter if you're not an ITS developer
387 ITS->SetWriteDet("$ALICE_ROOT/ITS/ITSgeometry_vPPRasymm2.det"); // don't touch this parameter if you're not an ITS developer
388 ITS->SetThicknessDet1(200.); // detector thickness on layer 1 must be in the range [150,300]
389 ITS->SetThicknessDet2(200.); // detector thickness on layer 2 must be in the range [150,300]
390 ITS->SetThicknessChip1(200.); // chip thickness on layer 1 must be in the range [100,300]
391 ITS->SetThicknessChip2(200.); // chip thickness on layer 2 must be in the range [100,300]
392 ITS->SetRails(1); // 1 --> rails in ; 0 --> rails out
393 ITS->SetCoolingFluid(1); // 1 --> water ; 0 --> freon
395 //AliITSvPPRsymm *ITS = new AliITSvPPRsymm("ITS","New ITS PPR detailed version with symmetric services");
396 //ITS->SetMinorVersion(2); // don't touch this parameter if you're not an ITS developer
397 //ITS->SetReadDet(kFALSE); // don't touch this parameter if you're not an ITS developer
398 //ITS->SetWriteDet("$ALICE_ROOT/ITS/ITSgeometry_vPPRsymm2.det"); // don't touch this parameter if you're not an ITS developer
399 //ITS->SetThicknessDet1(300.); // detector thickness on layer 1 must be in the range [150,300]
400 //ITS->SetThicknessDet2(300.); // detector thickness on layer 2 must be in the range [150,300]
401 //ITS->SetThicknessChip1(300.); // chip thickness on layer 1 must be in the range [100,300]
402 //ITS->SetThicknessChip2(300.); // chip thickness on layer 2 must be in the range [100,300]
403 //ITS->SetRails(1); // 1 --> rails in ; 0 --> rails out
404 //ITS->SetCoolingFluid(1); // 1 --> water ; 0 --> freon
407 // Coarse geometries (warning: no hits are produced with these coarse geometries and they unuseful
408 // for reconstruction !):
411 //AliITSvPPRcoarseasymm *ITS = new AliITSvPPRcoarseasymm("ITS","New ITS PPR coarse version with asymmetric services");
412 //ITS->SetRails(1); // 1 --> rails in ; 0 --> rails out
413 //ITS->SetSupportMaterial(0); // 0 --> Copper ; 1 --> Aluminum ; 2 --> Carbon
415 //AliITS *ITS = new AliITSvPPRcoarsesymm("ITS","New ITS PPR coarse version with symmetric services");
416 //ITS->SetRails(1); // 1 --> rails in ; 0 --> rails out
417 //ITS->SetSupportMaterial(0); // 0 --> Copper ; 1 --> Aluminum ; 2 --> Carbon
421 // Geant3 <-> EUCLID conversion
422 // ============================
424 // SetEUCLID is a flag to output (=1) or not to output (=0) both geometry and
425 // media to two ASCII files (called by default ITSgeometry.euc and
426 // ITSgeometry.tme) in a format understandable to the CAD system EUCLID.
427 // The default (=0) means that you dont want to use this facility.
434 //============================ TPC parameters ===================
435 AliTPC *TPC = new AliTPCv2("TPC","Default");
440 //=================== TOF parameters ============================
441 AliTOF *TOF = new AliTOFv5T0("TOF","normal TOF");
445 //=================== RICH parameters ===========================
446 AliRICH *RICH = new AliRICHv1("RICH","normal RICH");
452 //=================== ZDC parameters ============================
454 AliZDC *ZDC = new AliZDCv1("ZDC","normal ZDC");
458 //=================== CRT parameters ============================
460 AliCRT *CRT = new AliCRTv1("CRT","normal CRT");
464 //=================== TRD parameters ============================
466 AliTRD *TRD = new AliTRDv1("TRD","TRD slow simulator");
468 // Select the gas mixture (0: 97% Xe + 3% isobutane, 1: 90% Xe + 10% CO2)
471 // With hole in front of PHOS
473 // With hole in front of RICH
476 AliTRDsim *TRDsim = TRD->CreateTR();
480 //=================== FMD parameters ============================
482 AliFMD *FMD = new AliFMDv0("FMD","normal FMD");
486 //=================== MUON parameters ===========================
487 AliMUON *MUON = new AliMUONv1("MUON","default");
490 //=================== PHOS parameters ===========================
493 AliPHOS *PHOS = new AliPHOSv1("PHOS","GPS2");
497 //=================== CRT parameters ===========================
500 AliCRT *CRT = new AliCRTv1("CRT","Normal CRTGPS2");
505 //=================== PMD parameters ============================
507 AliPMD *PMD = new AliPMDv1("PMD","normal PMD");
508 PMD->SetPAR(1., 1., 0.8, 0.02);
509 PMD->SetIN(6., 18., -580., 27., 27.);
510 PMD->SetGEO(0.0, 0.2, 4.);
511 PMD->SetPadSize(0.8, 1.0, 1.0, 1.5);
516 //=================== START parameters ============================
517 AliSTART *START = new AliSTARTv1("START","START Detector");
525 AliGenPythia *PythiaHVQ(ProcessHvFl_t proc) {
527 AliGenPythia * gener = 0x0;
531 comment = comment.Append(" Charm in Pb-Pb at 5.5 TeV");
532 gener = new AliGenPythia(nEvts);
533 gener->SetProcess(kPyCharmPbPbMNR);
534 gener->SetStrucFunc(kCTEQ4L);
535 gener->SetPtHard(2.1,-1.0);
536 gener->SetEnergyCMS(5500.);
537 gener->SetNuclei(208,208);
540 comment = comment.Append(" Charm in p-Pb at 8.8 TeV");
541 gener = new AliGenPythia(nEvts);
542 gener->SetProcess(kPyCharmpPbMNR);
543 gener->SetStrucFunc(kCTEQ4L);
544 gener->SetPtHard(2.1,-1.0);
545 gener->SetEnergyCMS(8800.);
546 gener->SetProjectile("P",1,1);
547 gener->SetTarget("Pb",208,82);
550 comment = comment.Append(" Charm in pp at 14 TeV");
551 gener = new AliGenPythia(nEvts);
552 gener->SetProcess(kPyCharmppMNR);
553 gener->SetStrucFunc(kCTEQ4L);
554 gener->SetPtHard(2.1,-1.0);
555 gener->SetEnergyCMS(14000.);
557 case kCharmpp14000wmi:
558 comment = comment.Append(" Charm in pp at 14 TeV with mult. interactions");
559 gener = new AliGenPythia(-1);
560 gener->SetProcess(kPyCharmppMNRwmi);
561 gener->SetStrucFunc(kCTEQ5L);
562 gener->SetPtHard(ptHardMin,ptHardMax);
563 gener->SetEnergyCMS(14000.);
566 comment = comment.Append(" D0 in Pb-Pb at 5.5 TeV");
567 gener = new AliGenPythia(nEvts);
568 gener->SetProcess(kPyD0PbPbMNR);
569 gener->SetStrucFunc(kCTEQ4L);
570 gener->SetPtHard(2.1,-1.0);
571 gener->SetEnergyCMS(5500.);
572 gener->SetNuclei(208,208);
575 comment = comment.Append(" D0 in p-Pb at 8.8 TeV");
576 gener = new AliGenPythia(nEvts);
577 gener->SetProcess(kPyD0pPbMNR);
578 gener->SetStrucFunc(kCTEQ4L);
579 gener->SetPtHard(2.1,-1.0);
580 gener->SetEnergyCMS(8800.);
581 gener->SetProjectile("P",1,1);
582 gener->SetTarget("Pb",208,82);
585 comment = comment.Append(" D0 in pp at 14 TeV");
586 gener = new AliGenPythia(nEvts);
587 gener->SetProcess(kPyD0ppMNR);
588 gener->SetStrucFunc(kCTEQ4L);
589 gener->SetPtHard(2.1,-1.0);
590 gener->SetEnergyCMS(14000.);
593 comment = comment.Append(" DPlus in Pb-Pb at 5.5 TeV");
594 gener = new AliGenPythia(nEvts);
595 gener->SetProcess(kPyDPlusPbPbMNR);
596 gener->SetStrucFunc(kCTEQ4L);
597 gener->SetPtHard(2.1,-1.0);
598 gener->SetEnergyCMS(5500.);
599 gener->SetNuclei(208,208);
602 comment = comment.Append(" DPlus in p-Pb at 8.8 TeV");
603 gener = new AliGenPythia(nEvts);
604 gener->SetProcess(kPyDPluspPbMNR);
605 gener->SetStrucFunc(kCTEQ4L);
606 gener->SetPtHard(2.1,-1.0);
607 gener->SetEnergyCMS(8800.);
608 gener->SetProjectile("P",1,1);
609 gener->SetTarget("Pb",208,82);
612 comment = comment.Append(" DPlus in pp at 14 TeV");
613 gener = new AliGenPythia(nEvts);
614 gener->SetProcess(kPyDPlusppMNR);
615 gener->SetStrucFunc(kCTEQ4L);
616 gener->SetPtHard(2.1,-1.0);
617 gener->SetEnergyCMS(14000.);
619 case kDPlusStrangePbPb5500:
620 comment = comment.Append(" DPlusStrange in Pb-Pb at 5.5 TeV");
621 gener = new AliGenPythia(nEvts);
622 gener->SetProcess(kPyDPlusStrangePbPbMNR);
623 gener->SetStrucFunc(kCTEQ4L);
624 gener->SetPtHard(2.1,-1.0);
625 gener->SetEnergyCMS(5500.);
626 gener->SetNuclei(208,208);
628 case kDPlusStrangepPb8800:
629 comment = comment.Append(" DPlusStrange in p-Pb at 8.8 TeV");
630 gener = new AliGenPythia(nEvts);
631 gener->SetProcess(kPyDPlusStrangepPbMNR);
632 gener->SetStrucFunc(kCTEQ4L);
633 gener->SetPtHard(2.1,-1.0);
634 gener->SetEnergyCMS(8800.);
635 gener->SetProjectile("P",1,1);
636 gener->SetTarget("Pb",208,82);
638 case kDPlusStrangepp14000:
639 comment = comment.Append(" DPlusStrange in pp at 14 TeV");
640 gener = new AliGenPythia(nEvts);
641 gener->SetProcess(kPyDPlusStrangeppMNR);
642 gener->SetStrucFunc(kCTEQ4L);
643 gener->SetPtHard(2.1,-1.0);
644 gener->SetEnergyCMS(14000.);
646 case kBeautyPbPb5500:
647 comment = comment.Append(" Beauty in Pb-Pb at 5.5 TeV");
648 gener = new AliGenPythia(nEvts);
649 gener->SetProcess(kPyBeautyPbPbMNR);
650 gener->SetStrucFunc(kCTEQ4L);
651 gener->SetPtHard(2.75,-1.0);
652 gener->SetEnergyCMS(5500.);
653 gener->SetNuclei(208,208);
656 comment = comment.Append(" Beauty in p-Pb at 8.8 TeV");
657 gener = new AliGenPythia(nEvts);
658 gener->SetProcess(kPyBeautypPbMNR);
659 gener->SetStrucFunc(kCTEQ4L);
660 gener->SetPtHard(2.75,-1.0);
661 gener->SetEnergyCMS(8800.);
662 gener->SetProjectile("P",1,1);
663 gener->SetTarget("Pb",208,82);
666 comment = comment.Append(" Beauty in pp at 14 TeV");
667 gener = new AliGenPythia(nEvts);
668 gener->SetProcess(kPyBeautyppMNR);
669 gener->SetStrucFunc(kCTEQ4L);
670 gener->SetPtHard(2.75,-1.0);
671 gener->SetEnergyCMS(14000.);
673 case kBeautypp14000wmi:
674 comment = comment.Append(" Beauty in pp at 14 TeV with mult. interactions");
675 gener = new AliGenPythia(-1);
676 gener->SetProcess(kPyBeautyppMNRwmi);
677 gener->SetStrucFunc(kCTEQ5L);
678 gener->SetPtHard(ptHardMin,ptHardMax);
679 gener->SetEnergyCMS(14000.);