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