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 //*******************************************************************//
13 #if !defined(__CINT__) || defined(__MAKECINT__)
14 #include <Riostream.h>
18 #include <TVirtualMC.h>
20 #include "STEER/AliRunLoader.h"
21 #include "STEER/AliRun.h"
22 #include "STEER/AliConfig.h"
23 #include "PYTHIA6/AliDecayerPythia.h"
24 #include "PYTHIA6/AliGenPythia.h"
25 #include "STEER/AliMagFMaps.h"
26 #include "STRUCT/AliBODY.h"
27 #include "STRUCT/AliMAG.h"
28 #include "STRUCT/AliABSOv0.h"
29 #include "STRUCT/AliDIPOv2.h"
30 #include "STRUCT/AliHALL.h"
31 #include "STRUCT/AliFRAMEv2.h"
32 #include "STRUCT/AliSHILv2.h"
33 #include "STRUCT/AliPIPEv0.h"
34 #include "ITS/AliITSvPPRasymmFMD.h"
35 #include "TPC/AliTPCv2.h"
36 #include "TOF/AliTOFv4T0.h"
37 #include "RICH/AliRICHv1.h"
38 #include "ZDC/AliZDCv1.h"
39 #include "TRD/AliTRDv1.h"
40 #include "FMD/AliFMDv0.h"
41 #include "MUON/AliMUONv1.h"
42 #include "PHOS/AliPHOSv1.h"
43 #include "PMD/AliPMDv1.h"
44 #include "START/AliSTARTv1.h"
45 #include "CRT/AliCRTv1.h"
48 //--- Heavy Flavour Production ---
51 kCharmPbPb5500, kCharmpPb8800, kCharmpp14000,
52 kD0PbPb5500, kD0pPb8800, kD0pp14000,
53 kDPlusPbPb5500, kDPluspPb8800, kDPluspp14000,
54 kBeautyPbPb5500, kBeautypPb8800, kBeautypp14000
59 kNature, kHadr, kSemiEl, kSemiMu
61 //--- Rapidity Cut ---
64 kFull, kBarrel, kMuonArm
66 //--- Magnetic Field ---
72 AliGenPythia *PythiaHVQ(ProcessHvFl_t proc);
75 // This part for configuration
76 static ProcessHvFl_t procHvFl = kCharmPbPb5500;
77 static DecayHvFl_t decHvFl = kNature;
78 static YCut_t ycut = kFull;
79 static Mag_t mag = k4kG;
80 // nEvts = -1 : you get 1 QQbar pair and all the fragmentation and
82 // nEvts = N>0 : you get N charm / beauty Hadrons
84 // stars = kTRUE : all heavy resonances and their decay stored
85 // = kFALSE: only final heavy hadrons and their decays stored
90 static TString comment;
95 //========================//
96 // Set Random Number seed //
97 //========================//
99 UInt_t curtime=dt.Get();
100 UInt_t procid=gSystem->GetPid();
101 UInt_t seed=curtime-procid;
103 // gRandom->SetSeed(seed);
104 // cerr<<"Seed for random number generation= "<<seed<<endl;
105 gRandom->SetSeed(12345);
108 // libraries required by geant321
109 #if defined(__CINT__)
110 gSystem->Load("libgeant321");
113 new TGeant3TGeo("C++ Interface to Geant3");
115 //=======================================================================
116 // Create the output file
119 AliRunLoader* rl=0x0;
121 cout<<"Config.C: Creating Run Loader ..."<<endl;
122 rl = AliRunLoader::Open("galice.root",
123 AliConfig::GetDefaultEventFolderName(),
127 gAlice->Fatal("Config.C","Can not instatiate the Run Loader");
130 rl->SetCompressionLevel(2);
131 rl->SetNumberOfEventsPerFile(3);
132 gAlice->SetRunLoader(rl);
135 //=======================================================================
136 // ************* STEERING parameters FOR ALICE SIMULATION **************
137 // --- Specify event type to be tracked through the ALICE setup
138 // --- All positions are in cm, angles in degrees, and P and E in GeV
141 gMC->SetProcess("DCAY",1);
142 gMC->SetProcess("PAIR",1);
143 gMC->SetProcess("COMP",1);
144 gMC->SetProcess("PHOT",1);
145 gMC->SetProcess("PFIS",0);
146 gMC->SetProcess("DRAY",0);
147 gMC->SetProcess("ANNI",1);
148 gMC->SetProcess("BREM",1);
149 gMC->SetProcess("MUNU",1);
150 gMC->SetProcess("CKOV",1);
151 gMC->SetProcess("HADR",1);
152 gMC->SetProcess("LOSS",2);
153 gMC->SetProcess("MULS",1);
154 gMC->SetProcess("RAYL",1);
156 Float_t cut = 1.e-3; // 1MeV cut by default
157 Float_t tofmax = 1.e10;
159 gMC->SetCut("CUTGAM", cut);
160 gMC->SetCut("CUTELE", cut);
161 gMC->SetCut("CUTNEU", cut);
162 gMC->SetCut("CUTHAD", cut);
163 gMC->SetCut("CUTMUO", cut);
164 gMC->SetCut("BCUTE", cut);
165 gMC->SetCut("BCUTM", cut);
166 gMC->SetCut("DCUTE", cut);
167 gMC->SetCut("DCUTM", cut);
168 gMC->SetCut("PPCUTM", cut);
169 gMC->SetCut("TOFMAX", tofmax);
174 // Set External decayer //
175 //======================//
176 TVirtualMCDecayer* decayer = new AliDecayerPythia();
181 decayer->SetForceDecay(kAll);
184 decayer->SetForceDecay(kHadronicD);
187 decayer->SetForceDecay(kSemiElectronic);
190 decayer->SetForceDecay(kSemiMuonic);
194 gMC->SetExternalDecayer(decayer);
196 //=========================//
197 // Generator Configuration //
198 //=========================//
199 AliGenPythia *pythia = PythiaHVQ(procHvFl);
201 pythia->SetFeedDownHigherFamily(kFALSE);
202 // Stack filling option
203 if(!stars) pythia->SetStackFillOpt(AliGenPythia::kParentSelection);
205 if(nEvts>0) pythia->SetCountMode(AliGenPythia::kCountParents);
210 pythia->SetForceDecay(kAll);
213 pythia->SetForceDecay(kHadronicD);
216 pythia->SetForceDecay(kSemiElectronic);
219 pythia->SetForceDecay(kSemiMuonic);
224 pythia->SetMomentumRange(0,99999999);
225 pythia->SetPhiRange(0., 360.);
226 pythia->SetThetaRange(0,180);
229 pythia->SetYRange(-999,999);
232 pythia->SetYRange(-2,2);
235 pythia->SetYRange(1,6);
241 pythia->SetOrigin(0, 0, 0); // vertex position
242 pythia->SetSigma(0, 0, 5.3); // Sigma in (X,Y,Z) (cm) on IP position
243 pythia->SetCutVertexZ(1.); // Truncate at 1 sigma
244 pythia->SetVertexSmear(kPerEvent);
248 pythia->SetTrackingFlag(0);
249 // Specify GEANT tracking limits (Rmax, Zmax)
250 //gAlice->GetMCApp()->TrackingLimits(90.,1.0e10);
258 comment = comment.Append(" | L3 field 0.2 T");
259 } else if (mag == k4kG) {
260 comment = comment.Append(" | L3 field 0.4 T");
261 } else if (mag == k5kG) {
262 comment = comment.Append(" | L3 field 0.5 T");
264 printf("\n \n Comment: %s \n \n", comment.Data());
266 AliMagFMaps* field = new AliMagFMaps("Maps","Maps", 2, 1., 10., mag);
267 field->SetL3ConstField(0); //Using const. field in the barrel
269 gAlice->SetField(field);
272 // By default all ALICE is switched off
293 //=================== Alice BODY parameters =============================
294 AliBODY *BODY = new AliBODY("BODY","Alice envelop");
297 //=================== MAG parameters ============================
298 // --- Start with Magnet since detector layouts may be depending ---
299 // --- on the selected Magnet dimensions ---
300 AliMAG *MAG = new AliMAG("MAG","Magnet");
305 //=================== ABSO parameters ============================
306 AliABSO *ABSO = new AliABSOv0("ABSO","Muon Absorber");
310 //=================== DIPO parameters ============================
312 AliDIPO *DIPO = new AliDIPOv2("DIPO","Dipole version 2");
316 //=================== HALL parameters ============================
318 AliHALL *HALL = new AliHALL("HALL","Alice Hall");
323 //=================== FRAME parameters ============================
325 AliFRAME *FRAME = new AliFRAMEv2("FRAME","Space Frame");
330 //=================== SHIL parameters ============================
332 AliSHIL *SHIL = new AliSHILv2("SHIL","Shielding");
337 //=================== PIPE parameters ============================
339 AliPIPE *PIPE = new AliPIPEv0("PIPE","Beam Pipe");
345 //=================== ITS parameters ============================
347 // As the innermost detector in ALICE, the Inner Tracking System "impacts" on
348 // almost all other detectors. This involves the fact that the ITS geometry
349 // still has several options to be followed in parallel in order to determine
350 // the best set-up which minimizes the induced background. All the geometries
351 // available to date are described in the following. Read carefully the comments
352 // and use the default version (the only one uncommented) unless you are making
353 // comparisons and you know what you are doing. In this case just uncomment the
354 // ITS geometry you want to use and run Aliroot.
356 // Detailed geometries:
359 //AliITS *ITS = new AliITSv5symm("ITS","Updated ITS TDR detailed version with symmetric services");
361 //AliITS *ITS = new AliITSv5asymm("ITS","Updates ITS TDR detailed version with asymmetric services");
363 AliITSvPPRasymmFMD *ITS = new AliITSvPPRasymmFMD("ITS","New ITS PPR detailed version with asymmetric services");
364 ITS->SetMinorVersion(2); // don't touch this parameter if you're not an ITS developer
365 ITS->SetReadDet(kFALSE); // don't touch this parameter if you're not an ITS developer
366 ITS->SetWriteDet("$ALICE_ROOT/ITS/ITSgeometry_vPPRasymm2.det"); // don't touch this parameter if you're not an ITS developer
367 ITS->SetThicknessDet1(200.); // detector thickness on layer 1 must be in the range [150,300]
368 ITS->SetThicknessDet2(200.); // detector thickness on layer 2 must be in the range [150,300]
369 ITS->SetThicknessChip1(200.); // chip thickness on layer 1 must be in the range [100,300]
370 ITS->SetThicknessChip2(200.); // chip thickness on layer 2 must be in the range [100,300]
371 ITS->SetRails(1); // 1 --> rails in ; 0 --> rails out
372 ITS->SetCoolingFluid(1); // 1 --> water ; 0 --> freon
374 //AliITSvPPRsymm *ITS = new AliITSvPPRsymm("ITS","New ITS PPR detailed version with symmetric services");
375 //ITS->SetMinorVersion(2); // don't touch this parameter if you're not an ITS developer
376 //ITS->SetReadDet(kFALSE); // don't touch this parameter if you're not an ITS developer
377 //ITS->SetWriteDet("$ALICE_ROOT/ITS/ITSgeometry_vPPRsymm2.det"); // don't touch this parameter if you're not an ITS developer
378 //ITS->SetThicknessDet1(300.); // detector thickness on layer 1 must be in the range [150,300]
379 //ITS->SetThicknessDet2(300.); // detector thickness on layer 2 must be in the range [150,300]
380 //ITS->SetThicknessChip1(300.); // chip thickness on layer 1 must be in the range [100,300]
381 //ITS->SetThicknessChip2(300.); // chip thickness on layer 2 must be in the range [100,300]
382 //ITS->SetRails(1); // 1 --> rails in ; 0 --> rails out
383 //ITS->SetCoolingFluid(1); // 1 --> water ; 0 --> freon
386 // Coarse geometries (warning: no hits are produced with these coarse geometries and they unuseful
387 // for reconstruction !):
390 //AliITSvPPRcoarseasymm *ITS = new AliITSvPPRcoarseasymm("ITS","New ITS PPR coarse version with asymmetric services");
391 //ITS->SetRails(1); // 1 --> rails in ; 0 --> rails out
392 //ITS->SetSupportMaterial(0); // 0 --> Copper ; 1 --> Aluminum ; 2 --> Carbon
394 //AliITS *ITS = new AliITSvPPRcoarsesymm("ITS","New ITS PPR coarse version with symmetric services");
395 //ITS->SetRails(1); // 1 --> rails in ; 0 --> rails out
396 //ITS->SetSupportMaterial(0); // 0 --> Copper ; 1 --> Aluminum ; 2 --> Carbon
400 // Geant3 <-> EUCLID conversion
401 // ============================
403 // SetEUCLID is a flag to output (=1) or not to output (=0) both geometry and
404 // media to two ASCII files (called by default ITSgeometry.euc and
405 // ITSgeometry.tme) in a format understandable to the CAD system EUCLID.
406 // The default (=0) means that you dont want to use this facility.
413 //============================ TPC parameters ================================
414 // --- This allows the user to specify sectors for the SLOW (TPC geometry 2)
415 // --- Simulator. SecAL (SecAU) <0 means that ALL lower (upper)
416 // --- sectors are specified, any value other than that requires at least one
417 // --- sector (lower or upper)to be specified!
418 // --- Reminder: sectors 1-24 are lower sectors (1-12 -> z>0, 13-24 -> z<0)
419 // --- sectors 25-72 are the upper ones (25-48 -> z>0, 49-72 -> z<0)
420 // --- SecLows - number of lower sectors specified (up to 6)
421 // --- SecUps - number of upper sectors specified (up to 12)
422 // --- Sens - sensitive strips for the Slow Simulator !!!
423 // --- This does NOT work if all S or L-sectors are specified, i.e.
424 // --- if SecAL or SecAU < 0
427 //-----------------------------------------------------------------------------
429 // gROOT->LoadMacro("SetTPCParam.C");
430 // AliTPCParam *param = SetTPCParam();
431 AliTPC *TPC = new AliTPCv2("TPC","Default");
432 // All sectors included
440 //=================== TOF parameters ============================
441 AliTOF *TOF = new AliTOFv4T0("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.);
558 comment = comment.Append(" D0 in Pb-Pb at 5.5 TeV");
559 gener = new AliGenPythia(nEvts);
560 gener->SetProcess(kPyD0PbPbMNR);
561 gener->SetStrucFunc(kCTEQ4L);
562 gener->SetPtHard(2.1,-1.0);
563 gener->SetEnergyCMS(5500.);
564 gener->SetNuclei(208,208);
567 comment = comment.Append(" D0 in p-Pb at 8.8 TeV");
568 gener = new AliGenPythia(nEvts);
569 gener->SetProcess(kPyD0pPbMNR);
570 gener->SetStrucFunc(kCTEQ4L);
571 gener->SetPtHard(2.1,-1.0);
572 gener->SetEnergyCMS(8800.);
573 gener->SetProjectile("P",1,1);
574 gener->SetTarget("Pb",208,82);
577 comment = comment.Append(" D0 in pp at 14 TeV");
578 gener = new AliGenPythia(nEvts);
579 gener->SetProcess(kPyD0ppMNR);
580 gener->SetStrucFunc(kCTEQ4L);
581 gener->SetPtHard(2.1,-1.0);
582 gener->SetEnergyCMS(14000.);
585 comment = comment.Append(" DPlus in Pb-Pb at 5.5 TeV");
586 gener = new AliGenPythia(nEvts);
587 gener->SetProcess(kPyDPlusPbPbMNR);
588 gener->SetStrucFunc(kCTEQ4L);
589 gener->SetPtHard(2.1,-1.0);
590 gener->SetEnergyCMS(5500.);
591 gener->SetNuclei(208,208);
594 comment = comment.Append(" DPlus in p-Pb at 8.8 TeV");
595 gener = new AliGenPythia(nEvts);
596 gener->SetProcess(kPyDPluspPbMNR);
597 gener->SetStrucFunc(kCTEQ4L);
598 gener->SetPtHard(2.1,-1.0);
599 gener->SetEnergyCMS(8800.);
600 gener->SetProjectile("P",1,1);
601 gener->SetTarget("Pb",208,82);
604 comment = comment.Append(" DPlus in pp at 14 TeV");
605 gener = new AliGenPythia(nEvts);
606 gener->SetProcess(kPyDPlusppMNR);
607 gener->SetStrucFunc(kCTEQ4L);
608 gener->SetPtHard(2.1,-1.0);
609 gener->SetEnergyCMS(14000.);
611 case kBeautyPbPb5500:
612 comment = comment.Append(" Beauty in Pb-Pb at 5.5 TeV");
613 gener = new AliGenPythia(nEvts);
614 gener->SetProcess(kPyBeautyPbPbMNR);
615 gener->SetStrucFunc(kCTEQ4L);
616 gener->SetPtHard(2.75,-1.0);
617 gener->SetEnergyCMS(5500.);
618 gener->SetNuclei(208,208);
621 comment = comment.Append(" Beauty in p-Pb at 8.8 TeV");
622 gener = new AliGenPythia(nEvts);
623 gener->SetProcess(kPyBeautypPbMNR);
624 gener->SetStrucFunc(kCTEQ4L);
625 gener->SetPtHard(2.75,-1.0);
626 gener->SetEnergyCMS(8800.);
627 gener->SetProjectile("P",1,1);
628 gener->SetTarget("Pb",208,82);
631 comment = comment.Append(" Beauty in pp at 14 TeV");
632 gener = new AliGenPythia(nEvts);
633 gener->SetProcess(kPyBeautyppMNR);
634 gener->SetStrucFunc(kCTEQ4L);
635 gener->SetPtHard(2.75,-1.0);
636 gener->SetEnergyCMS(14000.);