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 #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 }