2 // Configuration for the first physics production 2008
5 // One can use the configuration macro in compiled mode by
6 // root [0] gSystem->Load("libgeant321");
7 // root [0] gSystem->SetIncludePath("-I$ROOTSYS/include -I$ALICE_ROOT/include\
8 // -I$ALICE_ROOT -I$ALICE/geant3/TGeant3");
9 // root [0] .x grun.C(1,"Config.C++")
11 #if !defined(__CINT__) || defined(__MAKECINT__)
12 #include <Riostream.h>
16 #include <TVirtualMC.h>
17 #include <TGeant3TGeo.h>
18 #include "STEER/AliRunLoader.h"
19 #include "STEER/AliRun.h"
20 #include "STEER/AliConfig.h"
21 #include "PYTHIA6/AliDecayerPythia.h"
22 #include "PYTHIA6/AliGenPythia.h"
23 #include "TDPMjet/AliGenDPMjet.h"
24 #include "STEER/AliMagFCheb.h"
25 #include "STRUCT/AliBODY.h"
26 #include "STRUCT/AliMAG.h"
27 #include "STRUCT/AliABSOv3.h"
28 #include "STRUCT/AliDIPOv3.h"
29 #include "STRUCT/AliHALLv3.h"
30 #include "STRUCT/AliFRAMEv2.h"
31 #include "STRUCT/AliSHILv3.h"
32 #include "STRUCT/AliPIPEv3.h"
33 #include "ITS/AliITSv11Hybrid.h"
34 #include "TPC/AliTPCv2.h"
35 #include "TOF/AliTOFv6T0.h"
36 #include "HMPID/AliHMPIDv3.h"
37 #include "ZDC/AliZDCv3.h"
38 #include "TRD/AliTRDv1.h"
39 #include "TRD/AliTRDgeometry.h"
40 #include "FMD/AliFMDv1.h"
41 #include "MUON/AliMUONv1.h"
42 #include "PHOS/AliPHOSv1.h"
43 #include "PHOS/AliPHOSSimParam.h"
44 #include "PMD/AliPMDv1.h"
45 #include "T0/AliT0v1.h"
46 #include "EMCAL/AliEMCALv2.h"
47 #include "ACORDE/AliACORDEv1.h"
48 #include "VZERO/AliVZEROv7.h"
54 kPythia6, kPhojet, kRunMax
57 const char * pprRunName[] = {
63 kNoField, k5kG, kFieldMax
66 const char * pprField[] = {
72 AliGenerator *MbPythia();
73 AliGenerator *MbPhojet();
74 void ProcessEnvironmentVars();
76 // Geterator, field, beam energy
77 static PDC06Proc_t proc = kPhojet;
78 static Mag_t mag = k5kG;
79 static Float_t energy = 10000; // energy in CMS
80 //========================//
81 // Set Random Number seed //
82 //========================//
84 static UInt_t seed = dt.Get();
87 static TString comment;
93 // Get settings from environment variables
94 ProcessEnvironmentVars();
96 gRandom->SetSeed(seed);
97 cerr<<"Seed for random number generation= "<<seed<<endl;
99 // Libraries required by geant321
100 #if defined(__CINT__)
101 gSystem->Load("liblhapdf"); // Parton density functions
102 gSystem->Load("libEGPythia6"); // TGenerator interface
103 gSystem->Load("libpythia6"); // Pythia
104 gSystem->Load("libAliPythia6"); // ALICE specific implementations
105 gSystem->Load("libgeant321");
108 new TGeant3TGeo("C++ Interface to Geant3");
110 //=======================================================================
111 // Create the output file
114 AliRunLoader* rl=0x0;
116 cout<<"Config.C: Creating Run Loader ..."<<endl;
117 rl = AliRunLoader::Open("galice.root",
118 AliConfig::GetDefaultEventFolderName(),
122 gAlice->Fatal("Config.C","Can not instatiate the Run Loader");
125 rl->SetCompressionLevel(2);
126 rl->SetNumberOfEventsPerFile(1000);
127 gAlice->SetRunLoader(rl);
128 // gAlice->SetGeometryFromFile("geometry.root");
129 // gAlice->SetGeometryFromCDB();
131 // Set the trigger configuration: proton-proton
132 gAlice->SetTriggerDescriptor("p-p");
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 //======================//
175 // Set External decayer //
176 //======================//
177 TVirtualMCDecayer* decayer = new AliDecayerPythia();
178 decayer->SetForceDecay(kAll);
180 gMC->SetExternalDecayer(decayer);
182 //=========================//
183 // Generator Configuration //
184 //=========================//
185 AliGenerator* gener = 0x0;
187 if (proc == kPythia6) {
189 } else if (proc == kPhojet) {
197 gener->SetOrigin(0., 0., 0.); // vertex position
200 // Size of the interaction diamond
202 Float_t sigmaz = 5.4 / TMath::Sqrt(2.); // [cm]
204 sigmaz = 10.5 / TMath::Sqrt(2.); // [cm]
207 Float_t betast = 10; // beta* [m]
208 Float_t eps = 3.75e-6; // emittance [m]
209 Float_t gamma = energy / 2.0 / 0.938272; // relativistic gamma [1]
210 Float_t sigmaxy = TMath::Sqrt(eps * betast / gamma) / TMath::Sqrt(2.) * 100.; // [cm]
211 printf("\n \n Diamond size x-y: %10.3e z: %10.3e\n \n", sigmaxy, sigmaz);
213 gener->SetSigma(sigmaxy, sigmaxy, sigmaz); // Sigma in (X,Y,Z) (cm) on IP position
214 gener->SetCutVertexZ(3.); // Truncate at 3 sigma
215 gener->SetVertexSmear(kPerEvent);
221 AliMagF* field = 0x0;
222 if (mag == kNoField) {
223 comment = comment.Append(" | L3 field 0.0 T");
224 field = new AliMagF("Maps","Maps", 2, 0., 0., 10., AliMagF::k2kG);
225 } else if (mag == k5kG) {
226 comment = comment.Append(" | L3 field 0.5 T");
227 field = new AliMagF("Maps","Maps", 2, 1., 1., 10., AliMagF::k5kG);
229 printf("\n \n Comment: %s \n \n", comment.Data());
231 TGeoGlobalMagField::Instance()->SetField(field);
258 //=================== Alice BODY parameters =============================
259 AliBODY *BODY = new AliBODY("BODY", "Alice envelop");
264 //=================== MAG parameters ============================
265 // --- Start with Magnet since detector layouts may be depending ---
266 // --- on the selected Magnet dimensions ---
267 AliMAG *MAG = new AliMAG("MAG", "Magnet");
273 //=================== ABSO parameters ============================
274 AliABSO *ABSO = new AliABSOv3("ABSO", "Muon Absorber");
279 //=================== DIPO parameters ============================
281 AliDIPO *DIPO = new AliDIPOv3("DIPO", "Dipole version 3");
286 //=================== HALL parameters ============================
288 AliHALL *HALL = new AliHALLv3("HALL", "Alice Hall");
294 //=================== FRAME parameters ============================
296 AliFRAMEv2 *FRAME = new AliFRAMEv2("FRAME", "Space Frame");
302 //=================== SHIL parameters ============================
304 AliSHIL *SHIL = new AliSHILv3("SHIL", "Shielding Version 3");
310 //=================== PIPE parameters ============================
312 AliPIPE *PIPE = new AliPIPEv3("PIPE", "Beam Pipe");
317 //=================== ITS parameters ============================
319 AliITS *ITS = new AliITSv11Hybrid("ITS","ITS v11Hybrid");
324 //============================ TPC parameters =====================
326 AliTPC *TPC = new AliTPCv2("TPC", "Default");
331 //=================== TOF parameters ============================
333 AliTOF *TOF = new AliTOFv6T0("TOF", "normal TOF");
339 //=================== HMPID parameters ===========================
341 AliHMPID *HMPID = new AliHMPIDv3("HMPID", "normal HMPID");
348 //=================== ZDC parameters ============================
350 AliZDC *ZDC = new AliZDCv3("ZDC", "normal ZDC");
355 //=================== TRD parameters ============================
357 AliTRD *TRD = new AliTRDv1("TRD", "TRD slow simulator");
358 AliTRDgeometry *geoTRD = TRD->GetGeometry();
359 // Partial geometry: modules at 0,8,9,17
360 // starting at 3h in positive direction
361 geoTRD->SetSMstatus(1,0);
362 geoTRD->SetSMstatus(2,0);
363 geoTRD->SetSMstatus(3,0);
364 geoTRD->SetSMstatus(4,0);
365 geoTRD->SetSMstatus(5,0);
366 geoTRD->SetSMstatus(6,0);
367 geoTRD->SetSMstatus(7,0);
368 geoTRD->SetSMstatus(10,0);
369 geoTRD->SetSMstatus(11,0);
370 geoTRD->SetSMstatus(12,0);
371 geoTRD->SetSMstatus(13,0);
372 geoTRD->SetSMstatus(14,0);
373 geoTRD->SetSMstatus(15,0);
374 geoTRD->SetSMstatus(16,0);
379 //=================== FMD parameters ============================
381 AliFMD *FMD = new AliFMDv1("FMD", "normal FMD");
386 //=================== MUON parameters ===========================
387 // New MUONv1 version (geometry defined via builders)
389 AliMUON *MUON = new AliMUONv1("MUON", "default");
394 //=================== PHOS parameters ===========================
396 AliPHOS *PHOS = new AliPHOSv1("PHOS", "IHEP");
397 //Set simulation parameters different from the default ones.
398 AliPHOSSimParam* simEmc = AliPHOSSimParam::GetInstance() ;
400 // APD noise of warm (+20C) PHOS:
401 // a2 = a1*(Y1/Y2)*(M1/M2), where a1 = 0.012 is APD noise at -25C,
402 // Y1 = 4.3 photo-electrons/MeV, Y2 = 1.7 p.e/MeV - light yields at -25C and +20C,
403 // M1 = 50, M2 = 50 - APD gain factors chosen for t1 = -25C and t2 = +20C,
404 // Y = MeanLightYield*APDEfficiency.
406 Float_t apdNoise = 0.012*2.5;
407 simEmc->SetAPDNoise(apdNoise);
409 //Raw Light Yield at +20C
410 simEmc->SetMeanLightYield(18800);
412 //ADC channel width at +18C.
413 simEmc->SetADCchannelW(0.0125);
419 //=================== PMD parameters ============================
421 AliPMD *PMD = new AliPMDv1("PMD", "normal PMD");
426 //=================== T0 parameters ============================
427 AliT0 *T0 = new AliT0v1("T0", "T0 Detector");
432 //=================== EMCAL parameters ============================
434 AliEMCAL *EMCAL = new AliEMCALv2("EMCAL", "EMCAL_COMPLETE");
439 //=================== ACORDE parameters ============================
441 AliACORDE *ACORDE = new AliACORDEv1("ACORDE", "normal ACORDE");
446 //=================== ACORDE parameters ============================
448 AliVZERO *VZERO = new AliVZEROv7("VZERO", "normal VZERO");
455 AliGenerator* MbPythia()
457 comment = comment.Append(" pp at 14 TeV: Pythia low-pt");
460 AliGenPythia* pythia = new AliGenPythia(-1);
461 pythia->SetMomentumRange(0, 999999.);
462 pythia->SetThetaRange(0., 180.);
463 pythia->SetYRange(-12.,12.);
464 pythia->SetPtRange(0,1000.);
465 pythia->SetProcess(kPyMb);
466 pythia->SetEnergyCMS(energy);
471 AliGenerator* MbPhojet()
473 comment = comment.Append(" pp at 14 TeV: Pythia low-pt");
476 #if defined(__CINT__)
477 gSystem->Load("libdpmjet"); // Parton density functions
478 gSystem->Load("libTDPMjet"); // Parton density functions
480 AliGenDPMjet* dpmjet = new AliGenDPMjet(-1);
481 dpmjet->SetMomentumRange(0, 999999.);
482 dpmjet->SetThetaRange(0., 180.);
483 dpmjet->SetYRange(-12.,12.);
484 dpmjet->SetPtRange(0,1000.);
485 dpmjet->SetProcess(kDpmMb);
486 dpmjet->SetEnergyCMS(energy);
491 void ProcessEnvironmentVars()
494 if (gSystem->Getenv("CONFIG_RUN_TYPE")) {
495 for (Int_t iRun = 0; iRun < kRunMax; iRun++) {
496 if (strcmp(gSystem->Getenv("CONFIG_RUN_TYPE"), pprRunName[iRun])==0) {
497 proc = (PDC06Proc_t)iRun;
498 cout<<"Run type set to "<<pprRunName[iRun]<<endl;
504 if (gSystem->Getenv("CONFIG_FIELD")) {
505 for (Int_t iField = 0; iField < kFieldMax; iField++) {
506 if (strcmp(gSystem->Getenv("CONFIG_FIELD"), pprField[iField])==0) {
508 cout<<"Field set to "<<pprField[iField]<<endl;
514 if (gSystem->Getenv("CONFIG_ENERGY")) {
515 energy = atoi(gSystem->Getenv("CONFIG_ENERGY"));
516 cout<<"Energy set to "<<energy<<" GeV"<<endl;
519 // Random Number seed
520 if (gSystem->Getenv("CONFIG_SEED")) {
521 seed = atoi(gSystem->Getenv("CONFIG_SEED"));