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Heavy flavor generation with Pythia tuned to reproduce Mangano-Nason-Ridolfi calculat...
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f2afc421 1void Config()
2{
3
4 //
5 // Set Random Number seed
6 TDatime dt;
7 UInt_t curtime=dt.Get();
8 UInt_t procid=gSystem->GetPid();
9 UInt_t seed=curtime-procid;
10
11 gRandom->SetSeed(seed);
12 cerr<<"Seed for random number generation= "<<seed<<endl;
13
2a7b7180 14 // libraries required by geant321
15 gSystem->Load("libgeant321");
16
b9d0a01d 17 new TGeant3("C++ Interface to Geant3");
f2afc421 18
19 //=======================================================================
20 // Create the output file
21
22 TFile *rootfile = new TFile("galice.root","recreate");
23 rootfile->SetCompressionLevel(2);
24 TGeant3 *geant3 = (TGeant3*)gMC;
25
26 //
27 // Set External decayer
28 AliDecayer* decayer = new AliDecayerPythia();
29 decayer->SetForceDecay(kAll);
30 decayer->Init();
31 gMC->SetExternalDecayer(decayer);
32
33 //
34 //
35 //=======================================================================
36 // ******* GEANT STEERING parameters FOR ALICE SIMULATION *******
37 geant3->SetTRIG(1); //Number of events to be processed
38 geant3->SetSWIT(4,10);
39 geant3->SetDEBU(0,0,1);
40 //geant3->SetSWIT(2,2);
41 geant3->SetDCAY(1);
42 geant3->SetPAIR(1);
43 geant3->SetCOMP(1);
44 geant3->SetPHOT(1);
45 geant3->SetPFIS(0);
46 geant3->SetDRAY(0);
47 geant3->SetANNI(1);
48 geant3->SetBREM(1);
49 geant3->SetMUNU(1);
50 geant3->SetCKOV(1);
51 geant3->SetHADR(1); //Select pure GEANH (HADR 1) or GEANH/NUCRIN (HADR 3)
52 geant3->SetLOSS(2);
53 geant3->SetMULS(1);
54 geant3->SetRAYL(1);
55 geant3->SetAUTO(1); //Select automatic STMIN etc... calc. (AUTO 1) or manual (AUTO 0)
56 geant3->SetABAN(0); //Restore 3.16 behaviour for abandoned tracks
57 geant3->SetOPTI(2); //Select optimisation level for GEANT geometry searches (0,1,2)
58 geant3->SetERAN(5.e-7);
59
60 Float_t cut = 1.e-3; // 1MeV cut by default
61 Float_t tofmax = 1.e10;
62 // GAM ELEC NHAD CHAD MUON EBREM MUHAB EDEL MUDEL MUPA TOFMAX
63 geant3->SetCUTS(cut,cut, cut, cut, cut, cut, cut, cut, cut, cut, tofmax);
64 //
65 //=======================================================================
66 // ************* STEERING parameters FOR ALICE SIMULATION **************
67 // --- Specify event type to be tracked through the ALICE setup
68 // --- All positions are in cm, angles in degrees, and P and E in GeV
69 // AliGenPythia *gener = new AliGenPythia(ntracks);
70 AliGenPythia *gener = new AliGenPythia(-1);
71
72 gener->SetMomentumRange(0,999);
73 gener->SetPhiRange(-180.,180.);
74 gener->SetThetaRange(0,180);
75 gener->SetYRange(-999,999);
76 //gener->SetPtRange(0,100);
77 gener->SetOrigin(0,0,0); // vertex position
78 //gener->SetVertexSmear(kPerEvent);
79 gener->SetSigma(0,0,5.3); // Sigma in (X,Y,Z) (cm) on IP position
80 gener->SetTrackingFlag(0);
81 // gener->SetForceDecay(kHadronicD);
82
83 //
84 // The following settings select the Pythia parameters tuned to agree
85 // with charm NLO calculation for Pb-Pb @ 5.5 TeV with MNR code.
86 //
87 gener->SetProcess(kPyCharmPbMNR);
402c423c 88 gener->SetStrucFunc(kCTEQ4L);
f2afc421 89 gener->SetPtHard(2.1,-1.0);
90 gener->SetEnergyCMS(5500.);
91 gener->SetNuclei(208,208); // Pb-Pb collisions
92
93 gener->Init();
94 //
95 // Activate this line if you want the vertex smearing to happen
96 // track by track
97 //
98 //gener->SetVertexSmear(perTrack);
99
100 // Field (L3 0.4 T)
101 AliMagFCM* field = new AliMagFCM(
102 "Map2","$(ALICE_ROOT)/data/field01.dat", 2, 1., 10.);
103 field->SetSolenoidField(4.);
104 gAlice->SetField(field);
105
106 Int_t iABSO=0;
b9d0a01d 107 Int_t iCRT=0;
f2afc421 108 Int_t iDIPO=0;
109 Int_t iFMD=0;
110 Int_t iFRAME=0;
111 Int_t iHALL=0;
112 Int_t iITS=0;
113 Int_t iMAG=0;
114 Int_t iMUON=0;
115 Int_t iPHOS=0;
116 Int_t iPIPE=0;
117 Int_t iPMD=0;
118 Int_t iRICH=0;
119 Int_t iSHIL=0;
120 Int_t iSTART=0;
121 Int_t iTOF=0;
122 Int_t iTPC=0;
123 Int_t iTRD=0;
124 Int_t iZDC=0;
125
126 //=================== Alice BODY parameters =============================
127 AliBODY *BODY = new AliBODY("BODY","Alice envelop");
128
129 if(iMAG) {
130 //=================== MAG parameters ============================
131 // --- Start with Magnet since detector layouts may be depending ---
132 // --- on the selected Magnet dimensions ---
133 AliMAG *MAG = new AliMAG("MAG","Magnet");
134 }
135
136
137 if(iABSO) {
138 //=================== ABSO parameters ============================
139 AliABSO *ABSO = new AliABSOv0("ABSO","Muon Absorber");
140 }
141
142 if(iDIPO) {
143 //=================== DIPO parameters ============================
144
145 AliDIPO *DIPO = new AliDIPOv2("DIPO","Dipole version 2");
146 }
147
148 if(iHALL) {
149 //=================== HALL parameters ============================
150
151 AliHALL *HALL = new AliHALL("HALL","Alice Hall");
152 }
153
154
155 if(iFRAME) {
156 //=================== FRAME parameters ============================
157
158 AliFRAME *FRAME = new AliFRAMEv2("FRAME","Space Frame");
159
160 }
161
162 if(iSHIL) {
163 //=================== SHIL parameters ============================
164
e0559846 165 AliSHIL *SHIL = new AliSHILv2("SHIL","Shielding");
f2afc421 166 }
167
168
169 if(iPIPE) {
170 //=================== PIPE parameters ============================
171
172 AliPIPE *PIPE = new AliPIPEv0("PIPE","Beam Pipe");
173 }
174
175
176 if(iITS) {
177
178//=================== ITS parameters ============================
179 //
180 // As the innermost detector in ALICE, the Inner Tracking System "impacts" on
181 // almost all other detectors. This involves the fact that the ITS geometry
182 // still has several options to be followed in parallel in order to determine
183 // the best set-up which minimizes the induced background. All the geometries
184 // available to date are described in the following. Read carefully the comments
185 // and use the default version (the only one uncommented) unless you are making
186 // comparisons and you know what you are doing. In this case just uncomment the
187 // ITS geometry you want to use and run Aliroot.
188 //
189 // Detailed geometries:
190 //
191 //
192 //AliITS *ITS = new AliITSv5symm("ITS","Updated ITS TDR detailed version with symmetric services");
193 //
194 //AliITS *ITS = new AliITSv5asymm("ITS","Updates ITS TDR detailed version with asymmetric services");
195 //
196 AliITSvPPRasymm *ITS = new AliITSvPPRasymm("ITS","New ITS PPR detailed version with asymmetric services");
197 ITS->SetMinorVersion(2); // don't touch this parameter if you're not an ITS developer
198 ITS->SetReadDet(kFALSE); // don't touch this parameter if you're not an ITS developer
199 ITS->SetWriteDet("$ALICE_ROOT/ITS/ITSgeometry_vPPRasymm2.det"); // don't touch this parameter if you're not an ITS developer
200 ITS->SetThicknessDet1(200.); // detector thickness on layer 1 must be in the range [150,300]
201 ITS->SetThicknessDet2(200.); // detector thickness on layer 2 must be in the range [150,300]
202 ITS->SetThicknessChip1(200.); // chip thickness on layer 1 must be in the range [100,300]
203 ITS->SetThicknessChip2(200.); // chip thickness on layer 2 must be in the range [100,300]
204 ITS->SetRails(1); // 1 --> rails in ; 0 --> rails out
205 ITS->SetCoolingFluid(1); // 1 --> water ; 0 --> freon
206 //
207 //AliITSvPPRsymm *ITS = new AliITSvPPRsymm("ITS","New ITS PPR detailed version with symmetric services");
208 //ITS->SetMinorVersion(2); // don't touch this parameter if you're not an ITS developer
209 //ITS->SetReadDet(kFALSE); // don't touch this parameter if you're not an ITS developer
210 //ITS->SetWriteDet("$ALICE_ROOT/ITS/ITSgeometry_vPPRsymm2.det"); // don't touch this parameter if you're not an ITS developer
211 //ITS->SetThicknessDet1(300.); // detector thickness on layer 1 must be in the range [150,300]
212 //ITS->SetThicknessDet2(300.); // detector thickness on layer 2 must be in the range [150,300]
213 //ITS->SetThicknessChip1(300.); // chip thickness on layer 1 must be in the range [100,300]
214 //ITS->SetThicknessChip2(300.); // chip thickness on layer 2 must be in the range [100,300]
215 //ITS->SetRails(1); // 1 --> rails in ; 0 --> rails out
216 //ITS->SetCoolingFluid(1); // 1 --> water ; 0 --> freon
217 //
218 //
219 // Coarse geometries (warning: no hits are produced with these coarse geometries and they unuseful
220 // for reconstruction !):
221 //
222 //
223 //AliITSvPPRcoarseasymm *ITS = new AliITSvPPRcoarseasymm("ITS","New ITS PPR coarse version with asymmetric services");
224 //ITS->SetRails(1); // 1 --> rails in ; 0 --> rails out
225 //ITS->SetSupportMaterial(0); // 0 --> Copper ; 1 --> Aluminum ; 2 --> Carbon
226 //
227 //AliITS *ITS = new AliITSvPPRcoarsesymm("ITS","New ITS PPR coarse version with symmetric services");
228 //ITS->SetRails(1); // 1 --> rails in ; 0 --> rails out
229 //ITS->SetSupportMaterial(0); // 0 --> Copper ; 1 --> Aluminum ; 2 --> Carbon
230 //
231 //
232 //
233 // Geant3 <-> EUCLID conversion
234 // ============================
235 //
236 // SetEUCLID is a flag to output (=1) or not to output (=0) both geometry and
237 // media to two ASCII files (called by default ITSgeometry.euc and
238 // ITSgeometry.tme) in a format understandable to the CAD system EUCLID.
239 // The default (=0) means that you dont want to use this facility.
240 //
241 ITS->SetEUCLID(0);
242 }
243
244
245 if(iTPC) {
246 //============================ TPC parameters ================================
247 // --- This allows the user to specify sectors for the SLOW (TPC geometry 2)
248 // --- Simulator. SecAL (SecAU) <0 means that ALL lower (upper)
249 // --- sectors are specified, any value other than that requires at least one
250 // --- sector (lower or upper)to be specified!
251 // --- Reminder: sectors 1-24 are lower sectors (1-12 -> z>0, 13-24 -> z<0)
252 // --- sectors 25-72 are the upper ones (25-48 -> z>0, 49-72 -> z<0)
253 // --- SecLows - number of lower sectors specified (up to 6)
254 // --- SecUps - number of upper sectors specified (up to 12)
255 // --- Sens - sensitive strips for the Slow Simulator !!!
256 // --- This does NOT work if all S or L-sectors are specified, i.e.
257 // --- if SecAL or SecAU < 0
258 //
259 //
260 //-----------------------------------------------------------------------------
261
262 // gROOT->LoadMacro("SetTPCParam.C");
263 // AliTPCParam *param = SetTPCParam();
264 AliTPC *TPC = new AliTPCv2("TPC","Default");
265 // All sectors included
266 TPC->SetSecAL(-1);
267 TPC->SetSecAU(-1);
268
269 }
270
271
272 if(iTOF) {
273 //=================== TOF parameters ============================
274 AliTOF *TOF = new AliTOFv2("TOF","normal TOF");
275 }
276
277 if(iRICH) {
278 //=================== RICH parameters ===========================
279 AliRICH *RICH = new AliRICHv1("RICH","normal RICH");
280
281 }
282
283
284 if(iZDC) {
285 //=================== ZDC parameters ============================
286
287 AliZDC *ZDC = new AliZDCv1("ZDC","normal ZDC");
288 }
289
b9d0a01d 290 if(iCRT) {
291 //=================== CRT parameters ============================
f2afc421 292
b9d0a01d 293 AliCRT *CRT = new AliCRTv1("CRT","normal CRT");
f2afc421 294 }
295
296 if(iTRD) {
297 //=================== TRD parameters ============================
298
299 AliTRD *TRD = new AliTRDv1("TRD","TRD slow simulator");
300
301 // Select the gas mixture (0: 97% Xe + 3% isobutane, 1: 90% Xe + 10% CO2)
302 TRD->SetGasMix(1);
303
304 // With hole in front of PHOS
305 TRD->SetPHOShole();
306 // With hole in front of RICH
307 TRD->SetRICHhole();
308 // Switch on TR
309 AliTRDsim *TRDsim = TRD->CreateTR();
310 }
311
312 if(iFMD) {
313 //=================== FMD parameters ============================
314
315 AliFMD *FMD = new AliFMDv0("FMD","normal FMD");
316 }
317
318 if(iMUON) {
319 //=================== MUON parameters ===========================
320 AliMUON *MUON = new AliMUONv1("MUON","default");
321 }
322
323 //=================== PHOS parameters ===========================
324
325 if(iPHOS) {
326 AliPHOS *PHOS = new AliPHOSv1("PHOS","GPS2");
327 }
328
329
b9d0a01d 330 //=================== CRT parameters ===========================
331
332 if(iCRT) {
333 AliCRT *CRT = new AliCRTv1("CRT","Normal CRTGPS2");
334 }
335
336
f2afc421 337 if(iPMD) {
338 //=================== PMD parameters ============================
339
340 AliPMD *PMD = new AliPMDv1("PMD","normal PMD");
341 PMD->SetPAR(1., 1., 0.8, 0.02);
342 PMD->SetIN(6., 18., -580., 27., 27.);
343 PMD->SetGEO(0.0, 0.2, 4.);
344 PMD->SetPadSize(0.8, 1.0, 1.0, 1.5);
345
346 }
347
348 if(iSTART) {
349 //=================== START parameters ============================
350 AliSTART *START = new AliSTARTv1("START","START Detector");
351 }
352
353
354}