MC-dependent part of AliRun extracted in AliMC (F.Carminati)
[u/mrichter/AliRoot.git] / VZERO / AliVZEROv2.cxx
1 /**************************************************************************
2  * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
3  *                                                                        *
4  * Author: The ALICE Off-line Project.                                    *
5  * Contributors are mentioned in the code where appropriate.              *
6  *                                                                        *
7  * Permission to use, copy, modify and distribute this software and its   *
8  * documentation strictly for non-commercial purposes is hereby granted   *
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10  * copies and that both the copyright notice and this permission notice   *
11  * appear in the supporting documentation. The authors make no claims     *
12  * about the suitability of this software for any purpose. It is          *
13  * provided "as is" without express or implied warranty.                  *
14  **************************************************************************/
15
16 /* $Id$ */
17
18 //////////////////////////////////////////////////////////////////////
19 //                                                                  //
20 //  (V-zero) detector  version 2  as designed by the Lyon group     //
21 //   All comments should be sent to Brigitte CHEYNIS :              //
22 //                                  b.cheynis@ipnl.in2p3.fr         // 
23 //   Geometry of the  4th of november 2002                          //
24 //  (circular instead of trapezoidal shapes as in previous versions //
25 //   plus changes in cell dimensions and offsets)                   // 
26 //                                                                  //
27 //////////////////////////////////////////////////////////////////////
28
29 #include <Riostream.h>
30 #include <stdlib.h>
31 #include <string.h>
32
33 #include <TBRIK.h>
34 #include <TBox.h>
35 #include <TCONE.h>
36 #include <TClonesArray.h>
37 #include <TGeant3.h>
38 #include <TGeometry.h>
39 #include <TH1.h>
40 #include <TLorentzVector.h>
41 #include <TMath.h>
42 #include <TNode.h>
43 #include <TObjectTable.h>
44 #include <TPCON.h>
45 #include <TPGON.h>
46 #include <TSPHE.h>
47 #include <TShape.h>
48 #include <TTRAP.h>
49 #include <TTRD2.h>
50 #include <TTUBE.h>
51 #include <TTUBS.h>
52 #include <TVirtualMC.h>
53 #include <TParticle.h>
54
55 #include "AliLoader.h"
56 #include "AliMagF.h"
57 #include "AliRun.h"
58 #include "AliVZEROdigit.h"
59 #include "AliVZEROhit.h"
60 #include "AliVZEROv2.h"
61 #include "AliMC.h"
62
63 ClassImp(AliVZEROv2)
64
65 //--------------------------------------------------------------------
66 AliVZEROv2:: AliVZEROv2():AliVZERO()
67 {
68
69 }
70 //--------------------------------------------------------------------
71 AliVZEROv2::AliVZEROv2(const char *name, const char *title):
72  AliVZERO(name,title)
73 {
74
75 // Standard constructor for V-zeroR Detector (right part)  version 0
76
77   Int_t i;
78
79   printf("\n");
80   for(i=0;i<26;i++) printf("*");
81   printf(" Create VZERO object ");
82   for(i=0;i<26;i++) printf("*");
83   printf("\n");
84   
85 }
86
87 //-------------------------------------------------------------------------
88 void AliVZEROv2::CreateGeometry()
89 {
90
91 // Creates the GEANT geometry of the V-zero Detector  version 2
92   
93   Int_t i;
94   
95   printf("\n");
96   for(i=0;i<26;i++) printf("*");
97   printf(" Create VZERO Geometry ");
98   for(i=0;i<26;i++) printf("*");
99   printf("\n");
100       
101   Int_t    *idtmed = fIdtmed->GetArray()-2999;
102
103   Int_t    n_detec_R = 1;
104   Int_t    n_detec_L = 1;
105  
106   Int_t    n_cells_R = 1;
107   Int_t    n_cells_L = 1;
108   
109   Int_t    idrotm[999];
110  
111   Float_t  height1, height2, height3, height4, height5; 
112   Float_t  height;
113   Float_t  theta;  
114   
115   Float_t  half_thick_qua;
116   
117   Float_t  zdet;
118   Float_t  r0, r5;
119   Float_t  pi = TMath::Pi();
120     
121   height1           =     1.82;           // height of cell 1, in cm
122   height2           =     3.81;           // height of cell 2, in cm
123   height3           =     4.72;           // height of cell 3, in cm
124   height4           =     7.12;           // height of cell 4, in cm
125   height5           =    10.83;           // height of cell 5, in cm
126   
127   theta             = pi/6.0/2.0;       // half angular opening = 15 degrees
128     
129   half_thick_qua    = fThickness1/2.0;   // half thickness of elementary cell (inner ring)
130     
131   zdet              =    90.0 - 0.6 -fThickness/2.0;  // distance to vertex (along Z axis)
132   r0                =    4.05;            // closest distance to center of the beam pipe
133   height            =    height1 + height2 + height3 + height4 + height5;
134   r5                =    r0 + height;
135
136 // Creation of mother volume V0LE - left part - :
137 // Entrance face at  -350.0 cm ...
138
139    Float_t   partube[3];
140    
141    partube[0] =  4.3;
142    partube[1] = 45.0;
143    partube[2] = fThickness1/2.0;   
144     
145    gMC->Gsvolu("V0LE","TUBE",idtmed[3005],partube,3);
146      
147 // Creation of five rings - left part - :
148 // Entrance face at -350.0 cm ... 
149
150 // Mother volume V0L0 in which will be set 5 scintillator cells 
151
152   Float_t   partubs[5];  
153     
154   Float_t   r0_left      =   4.3;   
155   Float_t   height1_left =   2.6; 
156   Float_t   height2_left =   4.1;
157   Float_t   height3_left =   6.4;
158   Float_t   height4_left =  10.2;
159   Float_t   height5_left =  16.9;
160   Float_t   height_left  = height1_left + height2_left + height3_left 
161                                         + height4_left + height5_left;
162   Float_t   r5_left      = r0_left  + height_left; 
163   
164   partubs[0]      =  r0_left;
165   partubs[1]      =  r5_left;
166   partubs[2]      =  fThickness1/2.0;
167   partubs[3]      =  90.0-15.0;
168   partubs[4]      = 120.0-15.0;
169
170   gMC->Gsvolu("V0L0","TUBS",idtmed[3010],partubs,5);  // air volume
171   
172   Float_t  r1_left =  r0_left + height1_left;        
173      
174   partubs[0]     =  r0_left;
175   partubs[1]     =  r1_left;
176
177   gMC->Gsvolu("V0L1","TUBS",idtmed[3005],partubs,5);  // quartz volume
178   gMC->Gspos("V0L1",1,"V0L0", 0.0, 0.0 , 0.0, 0,"ONLY"); 
179
180   Float_t   r2_left  =   r1_left + height2_left;       
181   
182   partubs[0]     =  r1_left;
183   partubs[1]     =  r2_left;
184
185   gMC->Gsvolu("V0L2","TUBS",idtmed[3005],partubs,5);  // quartz volume
186   gMC->Gspos("V0L2",1,"V0L0", 0.0, 0.0 , 0.0, 0,"ONLY"); 
187   
188   Float_t   r3_left =   r2_left + height3_left;
189    
190   partubs[0]     =  r2_left;
191   partubs[1]     =  r3_left;
192
193   gMC->Gsvolu("V0L3","TUBS",idtmed[3005],partubs,5);  // quartz volume
194   gMC->Gspos("V0L3",1,"V0L0", 0.0, 0.0 , 0.0, 0,"ONLY");
195   
196   Float_t   r4_left =  r3_left + height4_left;
197    
198   partubs[0]     =  r3_left;
199   partubs[1]     =  r4_left;
200
201   gMC->Gsvolu("V0L4","TUBS",idtmed[3005],partubs,5);  // quartz volume
202   gMC->Gspos("V0L4",1,"V0L0", 0.0, 0.0 , 0.0, 0,"ONLY");
203
204   partubs[0]     =  r4_left;
205   partubs[1]     =  r5_left;
206   partubs[3]     =  90.0-15.0;
207   partubs[4]     = 120.0-30.0;
208   
209   gMC->Gsvolu("V0L5","TUBS",idtmed[3005],partubs,5);  // quartz volume
210   gMC->Gspos("V0L5",1,"V0L0", 0.0, 0.0 , 0.0, 0,"ONLY");
211   
212   partubs[3]     = 120.0-30.0;
213   partubs[4]     = 120.0-15.0;
214   
215   gMC->Gsvolu("V0L6","TUBS",idtmed[3005],partubs,5);  // quartz volume
216   gMC->Gspos("V0L6",1,"V0L0", 0.0, 0.0 , 0.0, 0,"ONLY");
217   
218
219 // Creation of mother volume V0RI - right part - :
220   
221   partube[0] = r0 - 0.2;
222   partube[1] = r5 + 1.0;
223   partube[2] = fThickness/2.0; 
224       
225   gMC->Gsvolu("V0RI","TUBE",idtmed[3010],partube,3);
226   
227 // Creation of  carbon lids (3 mm thick) to keep V0RI box shut...
228  
229   partube[0] =   r0;
230   partube[1] =   r5;
231   partube[2] =   +0.3/2.0;
232     
233   gMC->Gsvolu("V0CA","TUBE",idtmed[3001],partube,3); 
234   gMC->Gspos("V0CA",1,"V0RI",0.0,0.0, fThickness/2.0-partube[2],0,"ONLY");
235   gMC->Gspos("V0CA",2,"V0RI",0.0,0.0,-fThickness/2.0+partube[2],0,"ONLY");
236   
237 // Creation of aluminum rings to maintain the V0RI pieces ...
238
239   partube[0] =   r0 - 0.2;
240   partube[1] =   r0;
241   partube[2] =   +fThickness/2.0;
242    
243   gMC->Gsvolu("V0IR","TUBE",idtmed[3003],partube,3);    
244   gMC->Gspos("V0IR",1,"V0RI",0.0,0.0,0.0,0,"ONLY");
245
246   partube[0] =   r5;
247   partube[1] =   r5 + 1.0;
248   partube[2] =   +fThickness/2.0;
249  
250   gMC->Gsvolu("V0ER","TUBE",idtmed[3003],partube,3);    
251   gMC->Gspos("V0ER",1,"V0RI",0.0,0.0,0.0,0,"ONLY");
252   
253 // Mother volume V0R0 in which will be set 5  scintillator cells 
254   
255   partubs[0]      =  r0;
256   partubs[1]      =  r5;
257   partubs[2]      =  fThickness/2.0;
258   partubs[3]      =  90.0-15.0;
259   partubs[4]      = 120.0-15.0;
260
261   gMC->Gsvolu("V0R0","TUBS",idtmed[3010],partubs,5);  // air volume 
262
263 // Elementary cell of ring 1 :
264 // (the cells will be shifted by 3 mm to output fibers) 
265    
266   Float_t   offset_fibers =  0.7;
267   Float_t   offset        =  fThickness/2.0 - 0.3 - fThickness1/2.0; 
268   Float_t   r1            =  r0 + height1;
269       
270   partubs[0]     =  r0;
271   partubs[1]     =  r1;
272   partubs[2]     =  fThickness1/2.0;
273   
274   gMC->Gsvolu("V0R1","TUBS",idtmed[3005],partubs,5);  // scintillator volume
275   gMC->Gspos("V0R1",1,"V0R0", 0.0, 0.0 , offset, 0,"ONLY"); 
276
277 // Elementary cell of ring 2 :
278
279   Float_t   r2   =  r1 + height2;       
280   
281   partubs[0]     =  r1;
282   partubs[1]     =  r2;
283
284   gMC->Gsvolu("V0R2","TUBS",idtmed[3005],partubs,5);  // scintillator volume
285   gMC->Gspos("V0R2",1,"V0R0", 0.0, 0.0 , offset - offset_fibers, 0,"ONLY"); 
286
287
288 // Elementary cell of ring 3 :
289   
290   Float_t   r3   =  r2 + height3;
291    
292   partubs[0]     =  r2;
293   partubs[1]     =  r3;
294
295   gMC->Gsvolu("V0R3","TUBS",idtmed[3005],partubs,5);  // scintillator volume
296   gMC->Gspos("V0R3",1,"V0R0", 0.0, 0.0 , offset -  2.0 * offset_fibers, 0,"ONLY");
297
298 // Elementary cell of ring 4 :
299   
300   Float_t   r4   =  r3 + height4 ;
301   
302   partubs[0]     =  r3;
303   partubs[1]     =  r4;
304
305   gMC->Gsvolu("V0R4","TUBS",idtmed[3005],partubs,5);  // scintillator volume
306   gMC->Gspos("V0R4",1,"V0R0", 0.0, 0.0 ,  offset - 3.0 * offset_fibers, 0,"ONLY");
307
308 // Elementary cells of ring 5 :
309
310   partubs[0]     =  r4;
311   partubs[1]     =  r5;
312   partubs[3]     =  90.0-15.0;
313   partubs[4]     = 120.0-30.0;
314   
315   gMC->Gsvolu("V0R5","TUBS",idtmed[3005],partubs,5);  // scintillator volume
316   gMC->Gspos("V0R5",1,"V0R0", 0.0, 0.0 , offset - 4.0 * offset_fibers, 0,"ONLY");  
317
318   partubs[3]     = 120.0-30.0;
319   partubs[4]     = 120.0-15.0;
320   
321   gMC->Gsvolu("V0R6","TUBS",idtmed[3005],partubs,5);  // scintillator volume
322   gMC->Gspos("V0R6",1,"V0R0", 0.0, 0.0 ,  offset - 4.0 * offset_fibers, 0,"ONLY");
323    
324   Float_t  phi_deg = 180./6.; 
325
326 // Right part : 
327  
328   for(Float_t  phi = 15.0; phi < 360.0; phi = phi + phi_deg)
329       {        
330         AliMatrix(idrotm[902], 90.0, phi, 90.0, 90.0 +phi, 0.0 , 0.0);
331         gMC->Gspos("V0R0",n_detec_R,"V0RI",0.0,
332                           0.0,0.0,idrotm[902],"ONLY");
333         n_detec_R++;
334        }
335
336   gMC->Gspos("V0RI",1,"ALIC",0.0,0.0,zdet,0,"ONLY");
337  
338   n_cells_R = (n_detec_R - 1) * 6;  
339   printf("    Number of cells on Right side =   %d\n",  n_cells_R);    
340
341 // Left part :
342
343   for(Float_t  phi = 15.0; phi < 360.0; phi = phi + phi_deg)
344       {       
345         AliMatrix(idrotm[902], 90.0, phi, 90.0, 90.0 +phi, 0.0 , 0.0);
346         gMC->Gspos("V0L0",n_detec_L,"V0LE",0.0,
347                           0.0,0.0,idrotm[902],"ONLY");
348         n_detec_L++;
349        }
350
351   gMC->Gspos("V0LE",1,"ALIC",0.0,0.0,-350.0-fThickness1/2.0,0,"ONLY");
352  
353   n_cells_L = (n_detec_L - 1) * 6;
354   printf("    Number of cells on Left side  =   %d\n",  n_cells_L);    
355   for(i=0;i<75;i++) printf("*");
356   printf("\n");
357            
358 }
359             
360 //_____________________________________________________________________________
361 void AliVZEROv2::BuildGeometry()
362 {
363   
364 // Builds simple ROOT TNode geometry for event display
365
366   Int_t i;
367
368   printf("\n");
369   for(i=0;i<30;i++) printf("*");
370   printf(" VZERO BuildGeometry ");
371   for(i=0;i<30;i++) printf("*");
372   printf("\n");
373  
374   TNode *Top; 
375
376   TNode *V0Rnode, *V0Rnode0, *V0Rnode6 , *V0Rnode7, *V0Rnode8, *V0Rnode9;
377   TNode *V0Rnode1, *V0Rnode2, *V0Rnode3, *V0Rnode4, *V0Rnode5;
378   TNode *V0Lnode, *V0Lnode0;
379   TNode *V0Lnode1, *V0Lnode2, *V0Lnode3, *V0Lnode4, *V0Lnode5, *V0Lnode6;
380    
381   const int kColorVZERO  = kGreen;
382  
383   Top = gAlice->GetGeometry()->GetNode("alice");
384
385   Float_t  height1, height2, height3, height4, height5; 
386   Float_t  height;
387   Float_t  theta;  
388   
389   Float_t  half_thick_qua;
390   Float_t  zdet;
391   Float_t  r0, r5;
392   Float_t  pi = TMath::Pi();
393
394   height1           =     1.82;           // height of cell 1, in cm
395   height2           =     3.81;           // height of cell 2, in cm
396   height3           =     4.72;           // height of cell 3, in cm
397   height4           =     7.12;           // height of cell 4, in cm
398   height5           =    10.83;           // height of cell 5, in cm  
399
400   theta             =    pi/6.0/2.0;    
401    
402   half_thick_qua    =    fThickness1/2.0; 
403   
404   zdet              =    90.0 - 0.6 - fThickness/2.0;   
405   r0                =    4.05;         
406   height            =    height1 + height2 + height3 + height4 + height5;
407   r5                =    r0 + height;
408   
409   Int_t     ndiv    =     1;  
410
411   Float_t   partube[3];
412
413   partube[0] =  r0 - 0.2;
414   partube[1] =  r5 + 1.0;
415   partube[2] = fThickness/2.0;   
416   
417   TTUBE *V0RI = new TTUBE("V0RI", "V0RI", "void", partube[0], partube[1], partube[2]);
418                 
419   Top->cd();
420   
421   V0Rnode = new TNode("V0RI","V0RI",V0RI,0.0,0.0,+zdet,0);
422   
423   V0Rnode->SetLineColor(kYellow);
424   fNodes->Add(V0Rnode);  
425   V0Rnode->SetVisibility(2);     
426  
427 // Rondelles de carbone (epaisseur 3 mm) de maintien des cellules ...
428   
429   partube[0] =   r0;
430   partube[1] =   r5;
431   partube[2] =   +0.3/2.0;
432   
433   TTUBE  *V0CA = new TTUBE("V0CA", "V0CA", "void",partube[0], partube[1], partube[2]);
434   
435   V0Rnode->cd();
436   V0Rnode6 = new TNode("V0CA", "V0CA",V0CA,0.0,0.0, fThickness/2.0-partube[2],0);        
437   V0Rnode6->SetLineColor(kYellow);
438   fNodes->Add(V0Rnode6); 
439   V0Rnode->cd();
440   V0Rnode7 = new TNode("V0CA", "V0CA",V0CA,0.0,0.0,-fThickness/2.0+partube[2],0);        
441   V0Rnode7->SetLineColor(kYellow);
442   fNodes->Add(V0Rnode7);
443   
444   partube[0] =   r0 - 0.2;
445   partube[1] =   r0;
446   partube[2] =   +fThickness/2.0;
447   
448   TTUBE *V0IR = new TTUBE("V0IR","V0IR","void", partube[0], partube[1], partube[2]);
449  
450   V0Rnode->cd();
451   V0Rnode8 = new TNode("V0IR", "V0IR",V0IR,0.0,0.0,0.0,0);
452   V0Rnode8->SetLineColor(kYellow);
453   fNodes->Add(V0Rnode8);
454
455   partube[0] =   r5;
456   partube[1] =   r5 + 1.0; 
457   partube[2] =   +fThickness/2.0;
458
459   TTUBE  *V0ER = new TTUBE("V0ER","V0ER","void", partube[0], partube[1], partube[2]);
460   
461   V0Rnode->cd();
462   V0Rnode9 = new TNode("V0ER", "V0ER",V0ER,0.0,0.0,0.0,0);
463   V0Rnode9->SetLineColor(kYellow);
464   fNodes->Add(V0Rnode9);
465   
466   Float_t   partubs[5];
467  
468   partubs[0]      =  r0;
469   partubs[1]      =  r5;
470   partubs[2]      =  fThickness/2.0;
471   partubs[3]      =  90.0-15.0;
472   partubs[4]      = 120.0-15.0;
473
474   TTUBS  *V0R0 = new TTUBS("V0R0", "V0R0", "void",partubs[0], partubs[1], partubs[2], 
475                                                   partubs[3], partubs[4]); 
476                                                   
477   V0R0->SetNumberOfDivisions(ndiv);                                               
478
479   Float_t   r1     =  r0 + height1;
480   Float_t   offset = fThickness/2.0 - 0.3 - fThickness1/2.0; 
481   Float_t   offset_fibers = 0.7;
482     
483   partubs[0]     =  r0;
484   partubs[1]     =  r1;
485   partubs[2]     =  fThickness1/2.0;
486
487   TTUBS *V0R1 = new TTUBS("V0R1", "V0R1", "void", partubs[0], partubs[1], partubs[2], 
488                                                   partubs[3], partubs[4]);
489
490   V0R1->SetNumberOfDivisions(ndiv);
491   
492   Float_t   r2   =  r1 + height2;       
493   
494   partubs[0]     =  r1;
495   partubs[1]     =  r2;
496
497   TTUBS *V0R2 = new TTUBS("V0R2", "V0R2", "void", partubs[0], partubs[1], partubs[2], 
498                                                   partubs[3], partubs[4]);
499
500   V0R2->SetNumberOfDivisions(ndiv);
501   
502   Float_t   r3   =  r2 + height3;
503    
504   partubs[0]     =  r2;
505   partubs[1]     =  r3;
506   
507   TTUBS *V0R3 = new TTUBS("V0R3", "V0R3", "void", partubs[0], partubs[1], partubs[2], 
508                                                   partubs[3], partubs[4]);
509   V0R3->SetNumberOfDivisions(ndiv);
510  
511   Float_t   r4   =  r3 + height4;
512    
513   partubs[0]     =  r3;
514   partubs[1]     =  r4;
515
516   TTUBS *V0R4 = new TTUBS("V0R4", "V0R4", "void", partubs[0], partubs[1], partubs[2], 
517                                                   partubs[3], partubs[4]);
518
519   V0R4->SetNumberOfDivisions(ndiv);
520
521   partubs[0]     =  r4;
522   partubs[1]     =  r5;
523   partubs[3]     =  90.0-15.0;
524   partubs[4]     = 120.0-30.0;
525   
526   TTUBS *V0R5 = new TTUBS("V0R5", "V0R5", "void", partubs[0], partubs[1], partubs[2], 
527                                                   partubs[3], partubs[4]);
528
529   V0R5->SetNumberOfDivisions(ndiv);
530
531   partubs[3]     = 120.0-30.0;
532   partubs[4]     = 120.0-15.0;
533   
534   TTUBS *V0R6 = new TTUBS("V0R6", "V0R6", "void", partubs[0], partubs[1], partubs[2], 
535                                                   partubs[3], partubs[4]);
536                                                   
537   V0R6->SetNumberOfDivisions(ndiv);
538                 
539   Float_t  phi;
540   Float_t  phi_deg= 180./6.;
541     
542   Int_t    n_detec_R = 1; 
543
544   char     NameNode[12];  
545  
546   for (phi = 15.0; phi < 360.0; phi = phi + phi_deg)
547   
548   {
549      
550     TRotMatrix* mat920 = new TRotMatrix("rot920","rot920", 90.0, +phi, 90., 90.+phi, 0.0, 0.0 );        
551      
552     sprintf(NameNode,"SUBDER%d",n_detec_R);
553     
554     V0Rnode->cd();
555     V0Rnode0 = new TNode(NameNode,NameNode,V0R0,0.0,0.0, 0.0,mat920);    
556     V0Rnode0->SetLineColor(kYellow);
557     fNodes->Add(V0Rnode0);
558     n_detec_R++;
559     
560     sprintf(NameNode,"SUBDER%d",n_detec_R);
561     V0Rnode0->cd();    
562     V0Rnode1 = new TNode(NameNode,NameNode,V0R1,0.0,0.0, offset,0);      
563     V0Rnode1->SetLineColor(kColorVZERO);
564     fNodes->Add(V0Rnode1);
565     n_detec_R++;
566     
567     sprintf(NameNode,"SUBDER%d",n_detec_R);
568     V0Rnode0->cd();    
569     V0Rnode2 = new TNode(NameNode,NameNode,V0R2,0.0,0.0, offset - offset_fibers,0);      
570     V0Rnode2->SetLineColor(kColorVZERO);
571     fNodes->Add(V0Rnode2);
572     n_detec_R++;
573
574     sprintf(NameNode,"SUBDER%d",n_detec_R);
575     V0Rnode0->cd();    
576     V0Rnode3 = new TNode(NameNode,NameNode,V0R3,0.0,0.0, offset - 2.0*offset_fibers,0);  
577     V0Rnode3->SetLineColor(kColorVZERO);
578     fNodes->Add(V0Rnode3);
579     n_detec_R++;
580
581     sprintf(NameNode,"SUBDER%d",n_detec_R);
582     V0Rnode0->cd();    
583     V0Rnode4 = new TNode(NameNode,NameNode,V0R4,0.0,0.0, offset - 3.0*offset_fibers,0);  
584     V0Rnode4->SetLineColor(kColorVZERO);
585     fNodes->Add(V0Rnode4);
586     n_detec_R++;
587      
588     sprintf(NameNode,"SUBDER%d",n_detec_R);
589     V0Rnode0->cd();    
590     V0Rnode5 = new TNode(NameNode,NameNode,V0R5,0.0,0.0, offset - 4.0*offset_fibers,0);  
591     V0Rnode5->SetLineColor(kColorVZERO);
592     fNodes->Add(V0Rnode5);
593     n_detec_R++;
594     
595     sprintf(NameNode,"SUBDER%d",n_detec_R);
596     V0Rnode0->cd();    
597     V0Rnode6 = new TNode(NameNode,NameNode,V0R6,0.0,0.0, offset - 4.0*offset_fibers,0);  
598     V0Rnode6->SetLineColor(kColorVZERO);
599     fNodes->Add(V0Rnode6);
600     n_detec_R++;
601        
602     V0Rnode0->SetVisibility(2);
603     
604   }    
605
606 // Left side of VZERO :
607      
608   Float_t   r0_left      =   4.3;   
609   Float_t   height1_left =   2.6; 
610   Float_t   height2_left =   4.1;
611   Float_t   height3_left =   6.4;
612   Float_t   height4_left =  10.2;
613   Float_t   height5_left =  16.9;
614   Float_t   height_left  = height1_left + height2_left + height3_left 
615                                         + height4_left + height5_left;
616   Float_t   r5_left      = r0_left  + height_left; 
617
618   partube[0] =  r0_left;
619   partube[1] =  r5_left;
620   partube[2] =  fThickness1/2.0; 
621   
622   TTUBE *V0LE = new TTUBE("V0LE", "V0LE", "void", partube[0], partube[1], partube[2]);
623                 
624   Top->cd();
625   
626   V0Lnode = new TNode("V0LE","V0LE",V0LE,0.0,0.0,-350.0-fThickness1/2.0,0);
627   
628   V0Lnode->SetLineColor(kBlue);
629   fNodes->Add(V0Lnode);
630   
631   V0Lnode->SetVisibility(2);
632
633   partubs[0]      =  r0_left;
634   partubs[1]      =  r5_left;
635   partubs[2]      =  fThickness1/2.0;
636   partubs[3]      =  90.0-15.0;
637   partubs[4]      = 120.0-15.0;
638   
639   TTUBS *V0L0 = new TTUBS("V0L0", "V0L0", "void", partubs[0], partubs[1], partubs[2], 
640                                                   partubs[3], partubs[4]);
641
642   V0L0->SetNumberOfDivisions(ndiv); 
643   V0L0->SetLineColor(7);
644   
645   Float_t   offset_left;
646   offset_left    = - fThickness1/2.0; 
647
648   Float_t   r1_left =  r0_left + height1_left;        
649       
650   partubs[0]     =  r0_left;
651   partubs[1]     =  r1_left;
652
653   TTUBS *V0L1 = new TTUBS("V0L1", "V0L1", "void", partubs[0], partubs[1], partubs[2], 
654                                                   partubs[3], partubs[4]);
655
656   V0L1->SetNumberOfDivisions(ndiv);
657   
658   Float_t   r2_left =  r1_left + height2_left;       
659   
660   partubs[0]     =  r1_left;
661   partubs[1]     =  r2_left;
662
663   TTUBS *V0L2 = new TTUBS("V0L2", "V0L2", "void", partubs[0], partubs[1], partubs[2], 
664                                                   partubs[3], partubs[4]);
665
666   V0L2->SetNumberOfDivisions(ndiv);
667   
668   Float_t   r3_left  =  r2_left + height3_left;
669   
670   partubs[0]     =  r2_left;
671   partubs[1]     =  r3_left;
672   
673   TTUBS *V0L3 = new TTUBS("V0L3", "V0L3", "void", partubs[0], partubs[1], partubs[2], 
674                                                   partubs[3], partubs[4]);
675   V0L3->SetNumberOfDivisions(ndiv);
676  
677   Float_t   r4_left  =   r3_left + height4_left;
678   
679   partubs[0]     =  r3_left;
680   partubs[1]     =  r4_left;
681
682   TTUBS *V0L4 = new TTUBS("V0L4", "V0L4", "void", partubs[0], partubs[1], partubs[2], 
683                                                   partubs[3], partubs[4]);
684
685   V0L4->SetNumberOfDivisions(ndiv);
686
687   partubs[0]     =  r4_left;
688   partubs[1]     =  r5_left;
689   partubs[3]     =  90.0-15.0;
690   partubs[4]     = 120.0-30.0;
691   
692   TTUBS *V0L5 = new TTUBS("V0L5", "V0L5", "void", partubs[0], partubs[1], partubs[2], 
693                                                   partubs[3], partubs[4]);
694
695
696   V0L5->SetNumberOfDivisions(ndiv);
697
698   partubs[3]     = 120.0-30.0;
699   partubs[4]     = 120.0-15.0;
700   
701   TTUBS *V0L6 = new TTUBS("V0L6", "V0L6", "void", partubs[0], partubs[1], partubs[2], 
702                                                   partubs[3], partubs[4]);
703                                                   
704   V0L6->SetNumberOfDivisions(ndiv);
705
706   Int_t    n_detec_L   = 1;
707  
708   for (phi = 15.0; phi < 360.0; phi = phi + phi_deg)
709   
710   {
711      
712     TRotMatrix* mat920 = new TRotMatrix("rot920","rot920", 90.0, +phi, 90., 90.+phi, 0.0, 0.0 );        
713     
714  
715     sprintf(NameNode,"SUBDEL%d",n_detec_L);
716     
717     V0Lnode->cd();
718     V0Lnode0 = new TNode(NameNode,NameNode,V0L0,0.0,0.0, offset_left + half_thick_qua,mat920);   
719     V0Lnode0->SetLineColor(kColorVZERO);
720     fNodes->Add(V0Lnode0);
721     n_detec_L++;
722     
723     sprintf(NameNode,"SUBDEL%d",n_detec_L);
724     V0Lnode0->cd();    
725     V0Lnode1 = new TNode(NameNode,NameNode,V0L1,0.0,0.0, 0.0,0);         
726     V0Lnode1->SetLineColor(kColorVZERO);
727     fNodes->Add(V0Lnode1);
728     n_detec_L++;
729     
730     sprintf(NameNode,"SUBDEL%d",n_detec_L);
731     V0Lnode0->cd();    
732     V0Lnode2 = new TNode(NameNode,NameNode,V0L2,0.0,0.0, 0.0,0);         
733     V0Lnode2->SetLineColor(kColorVZERO);
734     fNodes->Add(V0Lnode2);
735     n_detec_L++;
736
737
738     sprintf(NameNode,"SUBDEL%d",n_detec_L);
739     V0Lnode0->cd();    
740     V0Lnode3 = new TNode(NameNode,NameNode,V0L3,0.0,0.0, 0.0,0);         
741     V0Lnode3->SetLineColor(kColorVZERO);
742     fNodes->Add(V0Lnode3);
743     n_detec_L++;
744
745     sprintf(NameNode,"SUBDEL%d",n_detec_L);
746     V0Lnode0->cd();    
747     V0Lnode4 = new TNode(NameNode,NameNode,V0L4,0.0,0.0, 0.0,0);         
748     V0Lnode4->SetLineColor(kColorVZERO);
749     fNodes->Add(V0Lnode4);
750     n_detec_L++;
751      
752     sprintf(NameNode,"SUBDEL%d",n_detec_L);
753     V0Lnode0->cd();    
754     V0Lnode5 = new TNode(NameNode,NameNode,V0L5,0.0,0.0, 0.0,0);         
755     V0Lnode5->SetLineColor(kColorVZERO);
756     fNodes->Add(V0Lnode5);
757     n_detec_L++;
758     
759     sprintf(NameNode,"SUBDEL%d",n_detec_L);
760     V0Lnode0->cd();    
761     V0Lnode6 = new TNode(NameNode,NameNode,V0L6,0.0,0.0, 0.0,0);         
762     V0Lnode6->SetLineColor(kColorVZERO);
763     fNodes->Add(V0Lnode6);
764     n_detec_L++;
765        
766     V0Lnode0->SetVisibility(2);
767     
768   }    
769       
770 }  
771     
772 //------------------------------------------------------------------------
773 void AliVZEROv2::CreateMaterials()
774 {
775     Int_t i;
776
777     printf("\n");
778     for(i=0;i<25;i++) printf("*");
779     printf(" VZERO create materials ");
780     for(i=0;i<26;i++) printf("*");
781     printf("\n");
782     
783 /*
784     Float_t ppckov[14] = { 5.5e-9, 5.7e-9, 5.9e-9, 6.1e-9, 6.3e-9, 6.5e-9, 6.7e-9, 
785                            6.9e-9, 7.1e-9, 7.3e-9, 7.5e-9, 7.7e-9, 7.9e-9, 8.1e-9 };
786
787            
788     Float_t ppckov_alu[14] = { 5.5e-9, 5.7e-9, 5.9e-9, 6.1e-9, 6.3e-9, 6.5e-9, 6.7e-9, 
789                                6.9e-9, 7.1e-9, 7.3e-9, 7.5e-9, 7.7e-9, 7.9e-9, 8.1e-9 };
790                            
791     Float_t rindex_quarz[14] = { 1.52398,  1.53090, 1.53835, 1.54641, 1.55513, 1.56458, 
792                                  1.57488,  1.58611, 1.59842, 1.61197, 1.62696, 1.64362, 
793                                  1.662295, 1.68337 };
794                                  
795     Float_t absco_quarz[14] = { 105.8,  45.656, 35.665, 28.598, 25.007, 21.04, 17.525, 
796                                 14.177, 9.282, 4.0925, 1.149, 0.3627, 0.1497, 0.05 };   
797                                                                                         
798     Float_t effic_all[14]   = { 1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1. };
799     
800         
801     Float_t rindex_alu[14] = { 1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1. }; 
802     
803     
804     Float_t absco_alu[14]  = { 1e-4,1e-4,1e-4,1e-4,1e-4,1e-4,1e-4,1e-4,1e-4,1e-4,
805                                1e-4,1e-4,1e-4,1e-4 };
806     Float_t effic_alu[14]  = { 1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1. };
807
808 */        
809
810     Int_t *idtmed = fIdtmed->GetArray()-2999;
811     
812 //    TGeant3 *geant3 = (TGeant3*) gMC;
813     
814 //  Parameters related to Quarz (SiO2) :
815  
816     Float_t aqua[2], zqua[2], densqua, wmatqua[2];
817     Int_t nlmatqua;
818     
819     aqua[0]    = 28.09;
820     aqua[1]    = 16.;
821     zqua[0]    = 14.;
822     zqua[1]    = 8.;
823     densqua    = 2.64;
824     nlmatqua   = -2;
825     wmatqua[0] = 1.;
826     wmatqua[1] = 2.;
827
828 // Parameters  related to aluminum sheets :
829     
830     Float_t  aal   = 26.98;
831     Float_t  zal   = 13.00; 
832     Float_t  densal=   2.7; 
833     Float_t  radlal=   8.9;
834        
835 // Parameters  related to scintillator CH :
836     
837     Float_t ascin[2] = {1.00794,12.011};
838     Float_t zscin[2] = {1.,6.};
839     Float_t wscin[2] = {1.,1.};
840     Float_t denscin  = 1.032;
841     
842 //  Definition of materials :
843        
844     AliMaterial( 1, "AIR A$", 14.61, 7.3, .001205, 30420., 67500, 0, 0);
845     AliMaterial(11, "AIR I$", 14.61, 7.3, .001205, 30420., 67500, 0, 0);
846     AliMaterial( 2, "CARBON$"  , 12.01, 6.0, 2.265, 18.8, 49.9, 0, 0);
847     AliMixture(  3, "QUA", aqua, zqua, densqua, nlmatqua, wmatqua);
848     AliMaterial( 4, "ALUMINIUM1$", 26.98, 13., 2.7, 8.9, 37.2, 0, 0);
849     AliMaterial( 5, "ALUMINIUM2$", aal, zal, densal, radlal, 0, 0, 0);
850  
851     AliMixture( 6, "Scintillator$",ascin,zscin,denscin,-2,wscin);
852     
853      
854     Int_t   ISXFLD = gAlice->Field()->Integ();
855     Float_t SXMGMX = gAlice->Field()->Max();
856     
857     Float_t tmaxfd, stemax, deemax, epsil, stmin;
858         
859     tmaxfd = 10.;
860     stemax = 0.1;
861     deemax = 0.1;     
862     epsil  = 0.001;
863     stmin  = 0.001;
864   
865 //  Active Air :    
866     AliMedium(1, "ACTIVE AIR$", 1, 1, ISXFLD, SXMGMX,
867               10.0, 1.0, 0.1, 0.1, 10.0, 0, 0) ;
868
869 //  Inactive air : 
870   
871     AliMedium(11, "INACTIVE AIR$", 11, 0, ISXFLD, SXMGMX,
872               10.0, 1.0, 0.1, 0.1, 10.0, 0, 0) ;
873     
874     AliMedium(2, "CARBON$ ", 2,  1, ISXFLD, SXMGMX,
875               tmaxfd, stemax, deemax, epsil, stmin, 0, 0);   
876
877     AliMedium(3, "QUARZ$", 3, 1, ISXFLD, SXMGMX,
878               tmaxfd, fMaxStepQua, fMaxDestepQua, epsil, stmin, 0, 0);
879     
880     AliMedium(4,"ALUMINUM1$",4, 1, ISXFLD, SXMGMX,
881               tmaxfd, fMaxStepAlu, fMaxDestepAlu, epsil, stmin, 0, 0);
882               
883
884     AliMedium(5,"ALUMINUM2$",5, 1, ISXFLD, SXMGMX,
885               tmaxfd, fMaxStepAlu, fMaxDestepAlu, epsil, stmin, 0, 0);    
886
887     AliMedium(6,"SCINTILLATOR$",6, 1, ISXFLD, SXMGMX, 10.0, 0.1, 0.1, 0.003, 0.003, 0, 0);
888
889     gMC->Gstpar(idtmed[3000], "LOSS", 1.);  //  [3000] = air ACTIF  [3010] = air INACTIF
890     gMC->Gstpar(idtmed[3000], "HADR", 1.);
891     gMC->Gstpar(idtmed[3000], "DCAY", 1.);
892     gMC->Gstpar(idtmed[3000], "DRAY", 1.);
893     
894     gMC->Gstpar(idtmed[3001], "LOSS", 1.);  //  [3001] = carbon
895     gMC->Gstpar(idtmed[3001], "HADR", 1.);
896     gMC->Gstpar(idtmed[3001], "DCAY", 1.);
897     gMC->Gstpar(idtmed[3001], "DRAY", 1.);
898
899     gMC->Gstpar(idtmed[3002], "LOSS", 1.);  //  [3002] = quartz
900     gMC->Gstpar(idtmed[3002], "HADR", 1.);
901     gMC->Gstpar(idtmed[3002], "DCAY", 1.);
902     gMC->Gstpar(idtmed[3002], "DRAY", 1.);  
903     gMC->Gstpar(idtmed[3002], "CUTGAM",0.5E-4) ; 
904     gMC->Gstpar(idtmed[3002], "CUTELE",1.0E-4) ;
905     
906     gMC->Gstpar(idtmed[3003], "LOSS", 1.);  //  [3003] = normal aluminum
907     gMC->Gstpar(idtmed[3003], "HADR", 1.);
908     gMC->Gstpar(idtmed[3003], "DCAY", 1.);
909     gMC->Gstpar(idtmed[3003], "DRAY", 1.);
910     
911     gMC->Gstpar(idtmed[3004], "LOSS", 1.);  //  [3004] = reflecting aluminum
912     gMC->Gstpar(idtmed[3004], "HADR", 1.);
913     gMC->Gstpar(idtmed[3004], "DCAY", 1.);
914     gMC->Gstpar(idtmed[3004], "DRAY", 1.);
915     gMC->Gstpar(idtmed[3004], "CUTGAM",0.5E-4) ; 
916     gMC->Gstpar(idtmed[3004], "CUTELE",1.0E-4) ;
917     
918     gMC->Gstpar(idtmed[3005], "LOSS", 1.);  //  [3005] = scintillator
919     gMC->Gstpar(idtmed[3005], "HADR", 1.);
920     gMC->Gstpar(idtmed[3005], "DCAY", 1.);
921     gMC->Gstpar(idtmed[3005], "DRAY", 1.); 
922     gMC->Gstpar(idtmed[3005], "CUTGAM",0.5E-4) ; 
923     gMC->Gstpar(idtmed[3005], "CUTELE",1.0E-4) ;
924       
925     
926 //    geant3->Gsckov(idtmed[3002], 14, ppckov, absco_quarz, effic_all,rindex_quarz);    
927 //    geant3->Gsckov(idtmed[3004], 14, ppckov_alu, absco_alu, effic_alu, rindex_alu);
928
929 //    gMC->SetCerenkov(idtmed[3002], 14, ppckov, absco_quarz, effic_all,rindex_quarz);    
930 //    gMC->SetCerenkov(idtmed[3004], 14, ppckov_alu, absco_alu, effic_alu, rindex_alu);
931                                    
932     
933 }
934 //---------------------------------------------------------------------
935 void AliVZEROv2::DrawModule()
936 {
937
938 //  Drawing is done in DrawVZERO.C
939
940    Int_t i;
941
942    printf("\n");
943    for(i=0;i<30;i++) printf("*");
944    printf(" VZERO DrawModule ");
945    for(i=0;i<30;i++) printf("*");
946    printf("\n");
947
948
949 }
950
951 //-------------------------------------------------------------------
952 void AliVZEROv2::Init()
953 {
954 // Initialises version 1 of the VZERO Detector
955 // Just prints an information message
956   
957    printf(" VZERO version %d initialized \n",IsVersion());
958    
959 //   gMC->SetMaxStep(fMaxStepAlu);
960 //   gMC->SetMaxStep(fMaxStepQua);
961    
962     AliVZERO::Init();
963   
964 }
965
966 //-------------------------------------------------------------------
967
968 void AliVZEROv2::StepManager()
969 {
970    
971      Int_t     copy;
972      static    Int_t   vol[4];
973      static    Float_t hits[19];
974      static    Float_t eloss, tlength;
975      
976      TLorentzVector pos;     
977      TLorentzVector mom;
978      
979      Float_t        theta;
980      Float_t        phi;
981      Float_t        kRaddeg = 180/TMath::Pi();
982      Float_t        RingNumber;
983
984      Int_t          ipart;
985      Float_t        destep, step;
986           
987
988 //   We keep only charged tracks :
989      
990      if ( !gMC->TrackCharge() || !gMC->IsTrackAlive() ) return; 
991
992
993      vol[0]    = gMC->CurrentVolOffID(1, vol[1]);
994      vol[2]    = gMC->CurrentVolID(copy);
995      vol[3]    = copy;
996      
997
998      if      ( gMC->CurrentVolID(copy) == gMC->VolId("V0R1") ||
999                gMC->CurrentVolID(copy) == gMC->VolId("V0L1") )
1000                RingNumber = 1.0;
1001      else if ( gMC->CurrentVolID(copy) == gMC->VolId("V0R2") ||
1002                gMC->CurrentVolID(copy) == gMC->VolId("V0L2") ) 
1003                RingNumber = 2.0;  
1004      else if ( gMC->CurrentVolID(copy) == gMC->VolId("V0R3") ||
1005                gMC->CurrentVolID(copy) == gMC->VolId("V0L3") )
1006                RingNumber = 3.0;
1007      else if ( gMC->CurrentVolID(copy) == gMC->VolId("V0R4") ||
1008                gMC->CurrentVolID(copy) == gMC->VolId("V0L4") )   
1009                RingNumber = 4.0; 
1010      else if ( gMC->CurrentVolID(copy) == gMC->VolId("V0R5") ||
1011                gMC->CurrentVolID(copy) == gMC->VolId("V0L5") ||
1012                gMC->CurrentVolID(copy) == gMC->VolId("V0L6") ||
1013                gMC->CurrentVolID(copy) == gMC->VolId("V0R6") )    
1014                RingNumber = 5.0; 
1015      else
1016                RingNumber = 0.0;
1017
1018      if  (  RingNumber > 0.5  ) { 
1019      
1020         destep    = gMC->Edep();
1021         step      = gMC->TrackStep();
1022         eloss    += destep;
1023         tlength  += step; 
1024         
1025                  
1026         if  ( gMC->IsTrackEntering()  )  {  
1027        
1028             gMC->TrackPosition(pos);
1029      
1030             gMC->TrackMomentum(mom);      
1031             Double_t tc   = mom[0]*mom[0]+mom[1]*mom[1];
1032             Double_t Pt   = TMath::Sqrt(tc);
1033             Double_t Pmom = TMath::Sqrt(tc+mom[2]*mom[2]);
1034             theta   = Float_t(TMath::ATan2(Pt,Double_t(mom[2])))*kRaddeg;
1035             phi     = Float_t(TMath::ATan2(Double_t(mom[1]),Double_t(mom[0])))*kRaddeg;
1036      
1037             ipart  = gMC->TrackPid();
1038
1039             hits[0]  = pos[0];
1040             hits[1]  = pos[1];
1041             hits[2]  = pos[2];           
1042             hits[3]  =  Float_t (ipart); 
1043
1044             hits[4]  = gMC->TrackTime();
1045             hits[5]  = gMC->TrackCharge();
1046             hits[6]  = theta;
1047             hits[7]  = phi;
1048             hits[8]  = RingNumber;
1049          
1050             hits[9]  = Pt;
1051             hits[10] = Pmom;
1052             hits[11] = mom[0];
1053             hits[12] = mom[1];
1054             hits[13] = mom[2];
1055             
1056             TParticle *par = gAlice->GetMCApp()->Particle(gAlice->GetMCApp()->GetCurrentTrackNumber());
1057             hits[14] = par->Vx();
1058             hits[15] = par->Vy();
1059             hits[16] = par->Vz();
1060             
1061             tlength  = 0.0;
1062             eloss    = 0.0;
1063             
1064          }
1065          
1066          if( gMC->IsTrackExiting() || gMC->IsTrackStop() || gMC->IsTrackDisappeared()){
1067          
1068          hits[17] =   eloss;
1069          hits[18] = tlength;
1070          
1071          AddHit(gAlice->GetMCApp()->GetCurrentTrackNumber(), vol, hits);
1072                  
1073          tlength  = 0.0;
1074          eloss    = 0.0; 
1075
1076           
1077          } 
1078     }
1079       
1080 }
1081
1082 //_____________________________________________________________________________
1083 void AliVZEROv2::AddHit(Int_t track, Int_t *vol, Float_t *hits)
1084 {
1085   
1086   //  Add a VZERO hit
1087   
1088
1089   TClonesArray &lhits = *fHits;
1090   new(lhits[fNhits++]) AliVZEROhit(fIshunt,track,vol,hits);
1091 }
1092
1093 //---------------------------------------------------------------------
1094 void AliVZEROv2::AddDigits(Int_t *tracks, Int_t* digits) 
1095 {
1096
1097    TClonesArray  &ldigits = *fDigits;
1098    new(ldigits[fNdigits++]) AliVZEROdigit(tracks, digits);
1099 }
1100
1101 //---------------------------------------------------------------------
1102 void AliVZEROv2::MakeBranch(Option_t *option)
1103 {
1104   
1105   // Creates new branches in the current Root Tree
1106   
1107   
1108   char branchname[10];
1109   sprintf(branchname,"%s",GetName());
1110   printf(" fBufferSize = %d \n",fBufferSize);
1111   
1112   const char *H = strstr(option,"H");
1113   
1114   if (fHits   && TreeH() && H) {
1115     TreeH()->Branch(branchname,&fHits, fBufferSize);
1116     printf("* AliDetector::MakeBranch * Making Branch %s for hits\n",branchname);
1117   }     
1118
1119   const char *D = strstr(option,"D");
1120   //
1121   if (fDigits   && fLoader->TreeD() && D) {
1122     fLoader->TreeD()->Branch(branchname,&fDigits, fBufferSize);
1123     printf("* AliDetector::MakeBranch * Making Branch %s for digits\n",branchname);
1124   }  
1125    
1126 }