4 new TGeant3("C++ Interface to Geant3");
6 //=======================================================================
7 // Create the output file
9 TFile *rootfile = new TFile("galice.root","recreate");
10 rootfile->SetCompressionLevel(2);
11 TGeant3 *geant3 = (TGeant3*)gMC;
12 enum gentype_t {hijing, gun, box, pythia, param, cocktail, fluka, halo};
13 gentype_t gentype=param;
16 //=======================================================================
17 // ******* GEANT STEERING parameters FOR ALICE SIMULATION *******
18 geant3->SetTRIG(1); //Number of events to be processed
19 geant3->SetSWIT(4,10);
20 geant3->SetDEBU(0,0,1);
21 //geant3->SetSWIT(2,2);
32 geant3->SetHADR(1); //Select pure GEANH (HADR 1) or GEANH/NUCRIN (HADR 3)
36 geant3->SetAUTO(1); //Select automatic STMIN etc... calc. (AUTO 1) or manual (AUTO 0)
37 geant3->SetABAN(0); //Restore 3.16 behaviour for abandoned tracks
38 geant3->SetOPTI(2); //Select optimisation level for GEANT geometry searches (0,1,2)
39 Float_t cut = 1.e-3; // 1MeV cut by default
40 Float_t tofmax = 1.e10;
41 // GAM ELEC NHAD CHAD MUON EBREM MUHAB EDEL MUDEL MUPA TOFMAX
42 geant3->SetCUTS(cut,cut, cut, cut, cut, cut, cut, cut, cut, cut, tofmax);
44 //=======================================================================
45 // ************* STEERING parameters FOR ALICE SIMULATION **************
46 // --- Specify event type to be tracked through the ALICE setup
47 // --- All positions are in cm, angles in degrees, and P and E in GeV
52 //*********************************************
53 // Example for Fixed Particle Gun *
54 //*********************************************
55 AliGenFixed *gener = new AliGenFixed(200);
56 gener->SetMomentumRange(0,999);
57 gener->SetPhiRange(0,0);
58 gener->SetThetaRange(5., 5.);
59 gener->SetOrigin(0,0,0); //vertex position
60 gener->SetPart(14); //GEANT particle type
63 //*********************************************
64 // Example for Moving Particle Gun *
65 //*********************************************
66 AliGenBox *gener = new AliGenBox(500);
67 gener->SetMomentumRange(0,10);
68 gener->SetPhiRange(0,360);
69 gener->SetThetaRange(2., 10.);
70 gener->SetOrigin(0,0,0);
72 gener->SetSigma(0,0,5.6); //Sigma in (X,Y,Z) (cm) on IP position
73 gener->SetPart(14); //GEANT particle type
77 AliGenHIJINGpara *gener = new AliGenHIJINGpara(3000);
78 gener->SetMomentumRange(0,999);
79 gener->SetPhiRange(0,360);
80 gener->SetThetaRange(2,10);
81 gener->SetOrigin(0,0,0); //vertex position
82 gener->SetSigma(0,0,0); //Sigma in (X,Y,Z) (cm) on IP position
86 //********************************************
87 // Example for Charm Production with Pythia *
88 //********************************************
89 AliGenPythia *gener = new AliGenPythia(10);
90 gener->SetMomentumRange(0,999);
91 gener->SetPhiRange(0,360);
92 gener->SetThetaRange(0., 180.);
93 gener->SetYRange(-10,10);
94 gener->SetPtRange(0,1000000);
95 gener->SetOrigin(0,0,0); // vertex position
96 gener->SetVertexSmear(perTrack);
97 gener->SetSigma(0,0,5.6); // Sigma in (X,Y,Z) (cm) on IP position
98 gener->SetProcess(charm_unforced);
99 gener->ForceDecay(semielectronic);
100 gener->SetPtHard(0,3);
104 //*******************************************************
105 // Example for J/psi Production from Parameterisation *
106 //*******************************************************
107 AliGenParam *gener = new AliGenParam(1000, 443);
108 gener->SetMomentumRange(0,999);
109 gener->SetPhiRange(0,360);
110 gener->SetYRange(2,4);
111 gener->SetPtRange(1,10);
112 gener->SetOrigin(0,0,0); //vertex position
113 gener->SetSigma(0,0,5.6); //Sigma in (X,Y,Z) (cm) on IP position
114 gener->ForceDecay(dielectron);
118 //*******************************************************
119 // Example for a FLUKA Boundary Source *
120 //*******************************************************
121 AliGenFLUKAsource *gener = new AliGenFLUKAsource(1000);
122 gener->SetPartFlag(9);
123 gener->SetMomentumRange(0,999);
124 gener->SetPhiRange(0,360);
125 gener->SetThetaRange(0., 180.);
129 //*******************************************************
130 // Example for Tunnel Halo Source *
131 //*******************************************************
132 AliGenHalo *gener = new AliGenHalo(100);
133 gener->SetFileName("/h1/morsch/marsip/marsip5.mu");
138 //*******************************************************
139 // Example for a Cocktail *
140 //*******************************************************
142 AliGenCocktail *gener = new AliGenCocktail();
144 gener->SetMomentumRange(0,999);
145 gener->SetPhiRange(0,360);
146 gener->SetYRange(-4,4);
147 gener->SetPtRange(0,10);
148 gener->SetOrigin(0,0,0); //vertex position
149 gener->SetSigma(0,0,5.6); //Sigma in (X,Y,Z) (cm) on IP position
151 AliGenPythia *jpsi = new AliGenPythia(200);
153 jpsi->SetProcess(jpsi);
154 jpsi->ForceDecay(dimuon);
156 AliGenPythia *beauty = new AliGenPythia(200);
157 beauty->SetProcess(beauty_unforced);
158 beauty->ForceDecay(semielectronic);
160 AliGenPythia *charm = new AliGenPythia(200);
161 charm->SetProcess(charm_unforced);
162 charm->ForceDecay(semimuonic);
163 charm->SetPtHard(5,10);
165 AliGenParam *jpsi_to_muons = new AliGenParam(100,443);
166 jpsi_to_muons->ForceDecay(dimuon);
168 AliGenParam *jpsi_to_electrons = new AliGenParam(100,443);
169 jpsi_to_electrons->ForceDecay(dielectron);
171 AliGenParam *phi_to_electrons = new AliGenParam(100,333);
172 phi_to_electrons->ForceDecay(dielectron);
174 // gener->AddGenerator(jpsi,"Jpsi",1.);
175 // gener->AddGenerator(beauty,"Beauty",1.);
176 gener->AddGenerator(charm,"Charm",1.);
177 // gener->AddGenerator(jpsi_to_muons,"Jpsi_to_Muons",1.);
178 gener->AddGenerator(jpsi_to_electrons,"Jpsi_to_Electrons",1.);
179 // gener->AddGenerator(phi_to_electrons,"Phi_to_Electrons",1.);
184 // Activate this line if you want the vertex smearing to happen
187 gener->SetVertexSmear(perTrack);
189 gAlice->SetField(-999,2); //Specify maximum magnetic field in Tesla (neg. ==> default field)
210 //=================== Alice BODY parameters =============================
211 AliBODY *BODY = new AliBODY("BODY","Alice envelop");
215 //=================== MAG parameters ============================
216 // --- Start with Magnet since detector layouts may be depending ---
217 // --- on the selected Magnet dimensions ---
218 AliMAG *MAG = new AliMAG("MAG","Magnet");
222 //=================== ITS parameters ============================
224 // EUCLID is a flag to output (=1) both geometry and media to two ASCII files
225 // (called by default ITSgeometry.euc and ITSgeometry.tme) in a format
226 // understandable to the CAD system EUCLID. The default (=0) means that you
227 // dont want to use this facility.
229 AliITS *ITS = new AliITSv3("ITS","normal ITS");
234 //============================ TPC parameters ================================
235 // --- This allows the user to specify sectors for the SLOW (TPC geometry 2)
236 // --- Simulator. SecAL (SecAU) <0 means that ALL lower (upper)
237 // --- sectors are specified, any value other than that requires at least one
238 // --- sector (lower or upper)to be specified!
239 // --- Reminder: sectors 1-24 are lower sectors (1-12 -> z>0, 13-24 -> z<0)
240 // --- sectors 25-72 are the upper ones (25-48 -> z>0, 49-72 -> z<0)
241 // --- SecLows - number of lower sectors specified (up to 6)
242 // --- SecUps - number of upper sectors specified (up to 12)
243 // --- Sens - sensitive strips for the Slow Simulator !!!
244 // --- This does NOT work if all S or L-sectors are specified, i.e.
245 // --- if SecAL or SecAU < 0
248 //-----------------------------------------------------------------------------
250 AliTPC *TPC = new AliTPCv1("TPC","Normal TPC");
253 TPC->SetSecLows(1, -1, -1, -1, -1, -1);
254 TPC->SetSecUps(25, 26, 48, -1, -1, -1, -1, -1, -1, -1, -1, -1);
259 //=================== TOF parameters ============================
260 AliTOF *TOF = new AliTOFv2("TOF","normal TOF");
264 //=================== RICH parameters ===========================
266 AliRICH *RICH = new AliRICHv1("RICH","normal RICH");
274 //=================== ZDC parameters ============================
276 AliZDC *ZDC = new AliZDCv1("ZDC","normal ZDC");
280 //=================== CASTOR parameters ============================
282 AliCASTOR *CASTOR = new AliCASTORv1("CASTOR","normal CASTOR");
286 //=================== TRD parameters ============================
288 AliTRD *TRD = new AliTRDv2("TRD","TRD version 2");
289 // Select the gas mixture (0: 97% Xe + 3% isobutane, 1: 90% Xe + 10% CO2)
291 // Define the sensitive parts of the detector
292 //TRD->SetSensPlane(3);
293 //TRD->SetSensChamber(2);
294 //TRD->SetSensSector(5);
299 //=================== ABSO parameters ============================
300 AliABSO *ABSO = new AliABSO("ABSO","Muon Absorber");
304 //=================== DIPO parameters ============================
306 AliDIPO *DIPO = new AliDIPOv2("DIPO","Dipole version 2");
310 //=================== HALL parameters ============================
312 AliHALL *HALL = new AliHALL("HALL","Alice Hall");
317 //=================== FRAME parameters ============================
318 AliFRAME *FRAME = new AliFRAMEv0("FRAME","Space Frame");
322 //=================== SHIL parameters ============================
324 AliSHIL *SHIL = new AliSHIL("SHIL","Shielding");
329 //=================== PIPE parameters ============================
331 AliPIPE *PIPE = new AliPIPEv0("PIPE","Beam Pipe");
336 //=================== FMD parameters ============================
338 AliFMD *FMD = new AliFMDv1("FMD","normal FMD");
342 //=================== MUON parameters ===========================
344 AliMUON *MUON = new AliMUONv0("MUON","normal MUON");
346 MUON->SetSMAXAR(0.03);
351 // First define the number of planes that are segmented (1 or 2) by a call
353 // Then chose for each chamber (chamber plane) the segmentation
354 // and response model.
355 // They should be equal for the two chambers of each station. In a future
356 // version this will be enforced.
361 // Default Segmentation
362 AliMUONsegmentationV0* segV0 = new AliMUONsegmentationV0;
364 AliMUONresponseV0* response0 = new AliMUONresponseV0;
365 response0->SetSqrtKx3(0.761577);
366 response0->SetKx2(0.972655);
367 response0->SetKx4(0.3841);
368 response0->SetSqrtKy3(0.714143);
369 response0->SetKy2(1.0099);
370 response0->SetKy4(0.403);
371 response0->SetPitch(0.25);
372 response0->SetRSIGM(10.);
373 response0->SetMUCHSP(5.);
374 response0->SetMUSIGM(0.18, 0.18);
375 response0->SetMAXADC( 1024);
376 //--------------------------------------------------------
377 // Configuration for Chamber TC1/2 (Station 1) ----------
378 //^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
379 Float_t rseg[4]={17.5, 55.2, 71.3, 95.5};
380 Int_t nseg[4]={4, 4, 2, 1};
384 MUON->SetNsec(chamber-1,2);
386 AliMUONsegmentationV01 *seg11=new AliMUONsegmentationV01;
387 seg11->SetSegRadii(rseg);
388 seg11->SetPADSIZ(3.048, 0.508);
389 seg11->SetPadDivision(nseg);
390 MUON->SetSegmentationModel(chamber-1, 1, seg11);
392 AliMUONsegmentationV01 *seg12=new AliMUONsegmentationV01;
393 seg12->SetSegRadii(rseg);
394 seg12->SetPADSIZ(2.032, 0.762);
395 seg12->SetPadDivision(nseg);
397 MUON->SetSegmentationModel(chamber-1, 2, seg12);
401 MUON->SetNsec(chamber-1,2);
402 MUON->SetSegmentationModel(chamber-1, 1, seg11);
403 MUON->SetSegmentationModel(chamber-1, 2, seg12);
407 MUON->SetResponseModel(0, response0);
408 MUON->SetResponseModel(1, response0);
410 //--------------------------------------------------------
411 // Configuration for Chamber TC3/4 -----------------------
412 //^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
415 MUON->SetNsec(chamber-1,1);
416 AliMUONsegmentationV0 *seg34=new AliMUONsegmentationV0;
417 seg34->SetDAnod(0.51/3.);
419 MUON->SetSegmentationModel(chamber-1, 1, seg34);
420 MUON->SetResponseModel(chamber-1, response0);
423 MUON->SetNsec(chamber-1,1);
424 MUON->SetSegmentationModel(chamber-1, 1, seg34);
425 MUON->SetResponseModel(chamber-1, response0);
429 MUON->SetPADSIZ(station, 1, 0.75, 0.51);
430 MUON->SetMUCHSP(station, 5.);
431 MUON->SetMUSIGM(station, 0.18, 0.18);
432 MUON->SetRSIGM(station, 10.);
433 MUON->SetMAXADC(station, 1024);
436 //--------------------------------------------------------
437 // Configuration for Chamber TC5/6 -----------------------
438 //^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
440 seg5 = new AliMUONsegmentationV1;
441 AliMUONresponseV0* response5 = new AliMUONresponseV0;
443 response5->SetSqrtKx3(0.78740079);
444 response5->SetKx2(0.95237319); // 0.5 * kPI * (1- 0.5*sqrtky3 )
445 response5->SetKx4(0.37480633); // 0.25/TMath::ATan(sqrtkx3)
447 response5->SetSqrtKy3(0.74161985);
448 response5->SetKy2(0.98832946);
449 response5->SetKy4(0.39177817);
450 response5->SetPitch(0.325);
451 response5->SetRSIGM(10.);
452 response5->SetMUCHSP(5.);
453 response5->SetMUSIGM( 0.4, 0.4);
454 response5->SetMAXADC( 1024);
457 MUON->SetNsec(chamber-1,1);
458 MUON->SetSegmentationModel(chamber-1, 1, seg5);
459 MUON->SetResponseModel(chamber-1, response5);
462 MUON->SetNsec(chamber-1,1);
463 MUON->SetSegmentationModel(chamber-1, 1, seg5);
464 MUON->SetResponseModel(chamber-1, response5);
468 MUON->SetPADSIZ(station, 1, 0.975, 0.55);
471 //--------------------------------------------------------
472 // Configuration for Chamber TC7/8/9/10-------------------
473 //^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
476 MUON->SetNsec(chamber-1,1);
477 AliMUONsegmentationV0 *seg78=new AliMUONsegmentationV0;
478 seg78->SetDAnod(0.51/3.);
480 MUON->SetSegmentationModel(chamber-1, 1, seg78);
481 MUON->SetResponseModel(chamber-1, response0);
484 MUON->SetNsec(chamber-1,1);
485 MUON->SetSegmentationModel(chamber-1, 1, seg78);
486 MUON->SetResponseModel(chamber-1, response0);
490 MUON->SetPADSIZ(station, 1, 0.75, 0.5);
493 MUON->SetNsec(chamber-1,1);
494 AliMUONsegmentationV0 *seg910=new AliMUONsegmentationV0;
495 seg910->SetDAnod(0.51/3.);
497 MUON->SetSegmentationModel(chamber-1, 1, seg910);
498 MUON->SetResponseModel(chamber-1, response0);
501 MUON->SetNsec(chamber-1,1);
502 MUON->SetSegmentationModel(chamber-1, 1, seg910);
503 MUON->SetResponseModel(chamber-1, response0);
507 MUON->SetPADSIZ(station, 1, 0.75, 0.5);
510 MUON->SetNsec(chamber-1,1);
511 AliMUONsegmentationV0 *seg1112=new AliMUONsegmentationV0;
512 seg1112->SetDAnod(0.51/3.);
514 MUON->SetSegmentationModel(chamber-1, 1, seg1112);
515 MUON->SetResponseModel(chamber-1, response0);
518 MUON->SetNsec(chamber-1,1);
519 MUON->SetSegmentationModel(chamber-1, 1, seg1112);
520 MUON->SetResponseModel(chamber-1, response0);
524 MUON->SetPADSIZ(station, 1, 0.75, 0.5);
527 MUON->SetNsec(chamber-1,1);
528 AliMUONsegmentationV0 *seg1314=new AliMUONsegmentationV0;
529 seg1314->SetDAnod(0.51/3.);
531 MUON->SetSegmentationModel(chamber-1, 1, seg1314);
532 MUON->SetResponseModel(chamber-1, response0);
535 MUON->SetNsec(chamber-1,1);
536 MUON->SetSegmentationModel(chamber-1, 1, seg1314);
537 MUON->SetResponseModel(chamber-1, response0);
541 MUON->SetPADSIZ(station, 1, 0.75, 0.5);
545 //=================== PHOS parameters ===========================
547 AliPHOS *PHOS = new AliPHOSv1("PHOS","normal PHOS");
548 // * PHOSflags: YES: X<>0 NO: X=0
549 // * PHOSflags(1) : -----X Create branch for TObjArray of AliPHOSCradle
550 // * ----X- Create file (ftn03 on HP-UX) with list of SHAKER particles (7Mb/event)
552 PHOS->SetFlags(000001);
553 PHOS->SetRadius(460); //Distance from beam to PHOS crystals.
554 // (crystal_side_size,crystal_length,wrap_thikness,air_thikness,PIN_size,PIN length)
555 PHOS->SetCell(2.2, 18., 0.01, 0.01, 1., 0.1);
556 PHOS->SetCradleSize(104, 88, 4); // Nz (along beam), Nphi, Ncradles
557 PHOS->SetCradleA(0); //Angle between Cradles
558 PHOS->SetCPV(1., 2.); //CPV thikness, CPV-PHOS distance
560 // * PHOS extra parameters (contact Maxim Volkov volkov@mail.cern.ch)
561 // * 1. STE_THICK Steel cover thickness
562 // * 2. SUP_Y Crystal support height
563 // * 3. FTIU_THICK Thermo Insulating outer cover Upper plate thickness
564 // * 4. UFP_Y Upper Polystyrene Foam plate thickness
565 // * 5. TCB_THICK Thermo insulating Crystal Block wall thickness
566 // * 6. UCP_Y Upper Cooling Plate thickness
567 // * 7. ASP_Y Al Support Plate thickness
568 // * 8. TIP_Y Lower Thermo Insulating Plate thickness
569 // * 9. TXP_Y Lower Textolit Plate thickness
570 PHOS->SetExtra(0.001, 6.95, 4., 5., 2., 0.06, 10., 3., 1.);
571 PHOS->SetTextolitWall(209., 71., 250.); //Textolit Wall box dimentions
572 PHOS->SetInnerAir(206., 66., 244.); //Inner AIR volume dimensions
573 // * ===============================
574 // * 1. FTI_X Foam Thermo Insulating outer cover dimensions
577 // * 4. FTI_R Distance from IP to Foam Thermo Insulating top plate
578 PHOS->SetFoam(214.6, 80., 260., 467.);
579 // =================================
580 // *******************************************************************************
581 // * KINE 700 - SHAKER generator
582 // * KINE 700 x y z NDNDY YLIM PTLIM ChargeFlag
585 // * JPIC=JPRO=JKAC=JKA0=JRHO=JOME=JPHI=JPSI=JDRY=ChargeFlag
586 // * Int_t JWEI; // Unweighted generation
587 // * Int_t NDNDY; // Density of charged particles
588 // * Float_t YLIM; // Rapidity Limit
589 // * Float_t PTLIM; // Pt limit in GeV/c
590 // * Int_t JWEAK; // Disable weak decays
591 // * Int_t JPI0; // pi0 generation
592 // * Int_t JETA; // eta generation
593 // * Int_t JPIC; // pi+/- generation
594 // * Int_t JPRO; // proton generation
595 // * Int_t JKAC; // K+/- generation
596 // * Int_t JKA0; // K0 generation
597 // * Int_t JRHO; // rho generation
598 // * Int_t JOME; // omega generation
599 // * Int_t JPHI; // phi generation
600 // * Int_t JPSI; // J/psi generation
601 // * Int_t JDRY; // Drell-Yan generation
602 // * KINE 700 5. 175. 0. 800. 1.5 5. 1.
603 // *******************************************************************************
607 //=================== PMD parameters ============================
609 AliPMD *PMD = new AliPMDv0("PMD","normal PMD");
610 PMD->SetPAR(1., 1., 0.8, 0.02);
611 PMD->SetIN(6., 18., -580., 27., 27.);
612 PMD->SetGEO(0.0, 0.2, 4.);
613 PMD->SetPadSize(0.8, 1.0, 1.0, 1.5);