PWG1/AliAnalysisTaskITSTPCalignment.cxx

   1 ////////////////////////////////////////////////////////////////////////////////
   2 //  AliAnalysisTaskITSTPCalignment
   3 //  Runs the relative ITS TPC alignment procedure and TPC vdrift calib
   4 //  Origin: Mikolaj Krzewicki, mikolaj.krzewicki@cern.ch
   5 ////////////////////////////////////////////////////////////////////////////////
   6
   7 #include <TChain.h>
   8 #include <TTree.h>
   9 #include <TH2.h>
  10 #include <TProfile.h>
  11 #include <TCanvas.h>
  12 #include <TArrayI.h>
  13 #include <TObjArray.h>
  14 #include <TGraphErrors.h>
  15 #include <AliMagF.h>
  16 #include <AliAnalysisTaskSE.h>
  17 #include <AliMCEventHandler.h>
  18 #include <AliAnalysisManager.h>
  19 #include <AliESDEvent.h>
  20 #include <AliESDfriend.h>
  21 #include <AliMCEvent.h>
  22 #include <AliStack.h>
  23 #include <AliExternalTrackParam.h>
  24 #include <AliESDtrack.h>
  25 #include <AliESDfriendTrack.h>
  26 #include <AliESDInputHandler.h>
  27 #include "AliRelAlignerKalman.h"
  28 #include "AliRelAlignerKalmanArray.h"
  29 #include "AliAnalysisTaskITSTPCalignment.h"
  30 #include "AliLog.h"
  31
  32 ClassImp(AliAnalysisTaskITSTPCalignment)
  33
  34 //________________________________________________________________________
  35 AliAnalysisTaskITSTPCalignment::AliAnalysisTaskITSTPCalignment():
  36     AliAnalysisTaskSE(),
  37     fArrayITSglobal(0),
  38     fArrayITSsa(0),
  39     fDebugTree(0),
  40     fAligner(0),
  41     fList(0),
  42     fFillDebugTree(kFALSE),
  43     fDoQA(kTRUE),
  44     fT0(0),
  45     fTend(0),
  46     fSlotWidth(0),
  47     fMinPt(0.4),
  48     fMinPointsVol1(3),
  49     fMinPointsVol2(80),
  50     fRejectOutliers(kTRUE),
  51     fOutRejSigma(1.),
  52     fRejectOutliersSigma2Median(kFALSE),
  53     fOutRejSigma2Median(5.),
  54     fOutRejSigmaOnMerge(10.),
  55     fUseITSoutGlobalTrack(kFALSE),
  56     fUseITSoutITSSAtrack(kTRUE)
  57 {
  58   //dummy ctor
  59   // Define input and output slots here
  60   // Input slot #0 works with a TChain
  61   //DefineInput(0, TChain::Class());
  62   //DefineOutput(0, TTree::Class());
  63   //DefineOutput(1, TList::Class());
  64   //DefineOutput(2, AliRelAlignerKalmanArray::Class());
  65 }
  66
  67 //________________________________________________________________________
  68 AliAnalysisTaskITSTPCalignment::AliAnalysisTaskITSTPCalignment(const char *name):
  69     AliAnalysisTaskSE(name),
  70     fArrayITSglobal(0),
  71     fArrayITSsa(0),
  72     fDebugTree(0),
  73     fAligner(0),
  74     fList(0),
  75     fFillDebugTree(kFALSE),
  76     fDoQA(kTRUE),
  77     fT0(0),
  78     fTend(0),
  79     fSlotWidth(0),
  80     fMinPt(0.4),
  81     fMinPointsVol1(3),
  82     fMinPointsVol2(80),
  83     fRejectOutliers(kTRUE),
  84     fOutRejSigma(1.),
  85     fRejectOutliersSigma2Median(kFALSE),
  86     fOutRejSigma2Median(5.),
  87     fOutRejSigmaOnMerge(10.),
  88     fUseITSoutGlobalTrack(kFALSE),
  89     fUseITSoutITSSAtrack(kTRUE)
  90 {
  91   // Constructor
  92
  93   // Define input and output slots here
  94   // Input slot #0 is a TChain
  95   // Output slot #0 is a TTree
  96   DefineOutput(1, TList::Class());
  97   DefineOutput(2, AliRelAlignerKalmanArray::Class());
  98   DefineOutput(3, AliRelAlignerKalmanArray::Class());
  99 }
 100
 101 //________________________________________________________________________
 102 Bool_t AliAnalysisTaskITSTPCalignment::UserNotify()
 103 {
 104   //ON INPUT FILE/TREE CHANGE
 105
 106   //fArray->Print();
 107   if (fFillDebugTree)
 108   {
 109     if (fAligner->GetNUpdates()>0) fDebugTree->Fill();
 110   }
 111
 112   return kTRUE;
 113 }
 114
 115 //________________________________________________________________________
 116 void AliAnalysisTaskITSTPCalignment::UserCreateOutputObjects()
 117 {
 118   // Create output objects
 119   // Called once
 120   fArrayITSglobal = new AliRelAlignerKalmanArray();
 121   fArrayITSglobal->SetName("outputArrayITSglobal");
 122   fArrayITSglobal->SetupArray(fT0,fTend,fSlotWidth);
 123   fArrayITSglobal->SetOutRejSigmaOnMerge(fOutRejSigmaOnMerge);
 124   //set up the template
 125   AliRelAlignerKalman* templ = fArrayITSglobal->GetAlignerTemplate();
 126   templ->SetRejectOutliers(fRejectOutliers);
 127   templ->SetOutRejSigma(fOutRejSigma);
 128   templ->SetRejectOutliersSigma2Median(fRejectOutliersSigma2Median);
 129   templ->SetOutRejSigma2Median(fOutRejSigma2Median);
 130   fArrayITSsa = new AliRelAlignerKalmanArray();
 131   fArrayITSsa->SetName("outputArrayITSsa");
 132   fArrayITSsa->SetupArray(fT0,fTend,fSlotWidth);
 133   fArrayITSsa->SetOutRejSigmaOnMerge(fOutRejSigmaOnMerge);
 134   //set up the template
 135   templ = fArrayITSsa->GetAlignerTemplate();
 136   templ->SetRejectOutliers(fRejectOutliers);
 137   templ->SetOutRejSigma(fOutRejSigma);
 138   templ->SetRejectOutliersSigma2Median(fRejectOutliersSigma2Median);
 139   templ->SetOutRejSigma2Median(fOutRejSigma2Median);
 140
 141   fList = new TList();
 142
 143   TH2F* pZYAResidualsHistBpos = new TH2F("fZYAResidualsHistBpos","z-r\\phi residuals side A (z>0), Bpos", 100, -4., 4., 100, -1.5, 1.5 );
 144   pZYAResidualsHistBpos->SetXTitle("\\deltaz [cm]");
 145   pZYAResidualsHistBpos->SetYTitle("\\deltar\\phi [cm]");
 146   TH2F* pZYCResidualsHistBpos = new TH2F("fZYCResidualsHistBpos","z-r\\phi residuals side C (z<0), Bpos", 100, -4., 4., 100, -1.5, 1.5 );
 147   pZYCResidualsHistBpos->SetXTitle("\\deltaz [cm]");
 148   pZYCResidualsHistBpos->SetYTitle("\\deltar\\phi [cm]");
 149   TH2F* pLPAResidualsHistBpos = new TH2F("fLPAResidualsHistBpos", "sin(\\phi) tan(\\lambda) residuals side A (z>0), Bpos", 100, -.05, 0.05, 100, -0.05, 0.05 );
 150   pLPAResidualsHistBpos->SetXTitle("\\deltasin(\\phi)");
 151   pLPAResidualsHistBpos->SetYTitle("\\deltatan(\\lambda)");
 152   TH2F* pLPCResidualsHistBpos = new TH2F("fLPCResidualsHistBpos", "sin(\\phi) tan(\\lambda) residuals side C (z<0), Bpos", 100, -.05, 0.05, 100, -0.05, 0.05 );
 153   pLPCResidualsHistBpos->SetXTitle("\\deltasin(\\phi)");
 154   pLPCResidualsHistBpos->SetYTitle("\\deltatan(\\lambda)");
 155   TH2F* pPhiYAResidualsHistBpos = new TH2F("fPhiYAResidualsHistBpos","\\phi-\\deltar\\phi side A (z>0), Bpos",36,0.0,6.3,100,-1.5,1.5);
 156   pPhiYAResidualsHistBpos->SetXTitle("\\phi [rad]");
 157   pPhiYAResidualsHistBpos->SetYTitle("\\deltar\\phi [cm]");
 158   TH2F* pPhiYCResidualsHistBpos = new TH2F("fPhiYCResidualsHistBpos","\\phi-\\deltar\\phi side C (z<0), Bpos",36,0.0,6.3,100,-1.5,1.5);
 159   pPhiYCResidualsHistBpos->SetXTitle("\\phi [rad]");
 160   pPhiYCResidualsHistBpos->SetYTitle("\\deltar\\phi [cm]");
 161   TH2F* pPhiZAResidualsHistBpos = new TH2F("fPhiZAResidualsHistBpos","\\phi-\\deltaz side A (z>0), Bpos",36,0.0,6.3,100,-3.0,3.0);
 162   pPhiZAResidualsHistBpos->SetXTitle("\\phi [rad]");
 163   pPhiZAResidualsHistBpos->SetYTitle("\\deltaz [cm]");
 164   TH2F* pPhiZCResidualsHistBpos = new TH2F("fPhiZCResidualsHistBpos","\\phi-\\deltaz side C (z<0), Bpos",36,0.0,6.3,100,-3.0,3.0);
 165   pPhiZCResidualsHistBpos->SetXTitle("\\phi [rad]");
 166   pPhiZCResidualsHistBpos->SetYTitle("\\deltaz [cm]");
 167   TH2F* pPtYAResidualsHistBpos = new TH2F("fPtYAResidualsHistBpos","Pt-\\deltar\\phi side A (z>0), Bpos",20,.3,8.,80,-1.5,1.5);
 168   pPtYAResidualsHistBpos->SetXTitle("Pt [rad]");
 169   pPtYAResidualsHistBpos->SetYTitle("\\deltar\\phi [cm]");
 170   TH2F* pPtYCResidualsHistBpos = new TH2F("fPtYCResidualsHistBpos","Pt-\\deltar\\phi side C (z<0), Bpos",20,.3,8.,80,-1.5,1.5);
 171   pPtYCResidualsHistBpos->SetXTitle("Pt [rad]");
 172   pPtYCResidualsHistBpos->SetYTitle("\\deltar\\phi [cm]");
 173   TH2F* pPtZAResidualsHistBpos = new TH2F("fPtZAResidualsHistBpos","Pt-\\deltaz side A (z>0), Bpos",20,.3,8.,80,-3.0,3.0);
 174   pPtZAResidualsHistBpos->SetXTitle("Pt");
 175   pPtZAResidualsHistBpos->SetYTitle("\\deltaz [cm]");
 176   TH2F* pPtZCResidualsHistBpos = new TH2F("fPtZCResidualsHistBpos","Pt-\\deltaz side C (z<0), Bpos",20,.3,8.,80,-3.0,3.0);
 177   pPtZCResidualsHistBpos->SetXTitle("Pt");
 178   pPtZCResidualsHistBpos->SetYTitle("\\deltaz [cm]");
 179   TH2F* pLowPtYAResidualsHistBpos = new TH2F("fLowPtYAResidualsHistBpos","Pt-\\deltar\\phi side A (z>0), Bpos",100,0.0,1.5,80,-1.5,1.5);
 180   pLowPtYAResidualsHistBpos->SetXTitle("Pt [rad]");
 181   pLowPtYAResidualsHistBpos->SetYTitle("\\deltar\\phi [cm]");
 182   TH2F* pLowPtYCResidualsHistBpos = new TH2F("fLowPtYCResidualsHistBpos","Pt-\\deltar\\phi side C (z<0), Bpos",100,0.0,1.5,80,-1.5,1.5);
 183   pLowPtYCResidualsHistBpos->SetXTitle("Pt [rad]");
 184   pLowPtYCResidualsHistBpos->SetYTitle("\\deltar\\phi [cm]");
 185   TH2F* pLowPtZAResidualsHistBpos = new TH2F("fLowPtZAResidualsHistBpos","Pt-\\deltaz side A (z>0), Bpos",100,0.0,1.5,80,-3.0,3.0);
 186   pLowPtZAResidualsHistBpos->SetXTitle("Pt");
 187   pLowPtZAResidualsHistBpos->SetYTitle("\\deltaz [cm]");
 188   TH2F* pLowPtZCResidualsHistBpos = new TH2F("fLowPtZCResidualsHistBpos","Pt-\\deltaz side C (z<0), Bpos",100,0.0,1.5,80,-3.0,3.0);
 189   pLowPtZCResidualsHistBpos->SetXTitle("Pt");
 190   pLowPtZCResidualsHistBpos->SetYTitle("\\deltaz [cm]");
 191   TList* listBpos = new TList();
 192   fList->Add(listBpos); //0
 193   listBpos->Add(pZYAResidualsHistBpos);
 194   listBpos->Add(pZYCResidualsHistBpos);
 195   listBpos->Add(pLPAResidualsHistBpos);
 196   listBpos->Add(pLPCResidualsHistBpos);
 197   listBpos->Add(pPhiYAResidualsHistBpos);
 198   listBpos->Add(pPhiYCResidualsHistBpos);
 199   listBpos->Add(pPhiZAResidualsHistBpos);
 200   listBpos->Add(pPhiZCResidualsHistBpos);
 201   listBpos->Add(pPtYAResidualsHistBpos);
 202   listBpos->Add(pPtYCResidualsHistBpos);
 203   listBpos->Add(pPtZAResidualsHistBpos);
 204   listBpos->Add(pPtZCResidualsHistBpos);
 205   listBpos->Add(pLowPtYAResidualsHistBpos);
 206   listBpos->Add(pLowPtYCResidualsHistBpos);
 207   listBpos->Add(pLowPtZAResidualsHistBpos);
 208   listBpos->Add(pLowPtZCResidualsHistBpos);
 209
 210   TH2F* pZYAResidualsHistBneg = new TH2F("fZYAResidualsHistBneg","z-r\\phi residuals side A (z>0), Bneg", 100, -4., 4., 100, -1.5, 1.5 );
 211   pZYAResidualsHistBneg->SetXTitle("\\deltaz [cm]");
 212   pZYAResidualsHistBneg->SetYTitle("\\deltar\\phi [cm]");
 213   TH2F* pZYCResidualsHistBneg = new TH2F("fZYCResidualsHistBneg","z-r\\phi residuals side C (z<0), Bneg", 100, -4., 4., 100, -1.5, 1.5 );
 214   pZYCResidualsHistBneg->SetXTitle("\\deltaz [cm]");
 215   pZYCResidualsHistBneg->SetYTitle("\\deltar\\phi [cm]");
 216   TH2F* pLPAResidualsHistBneg = new TH2F("fLPAResidualsHistBneg", "sin(\\phi) tan(\\lambda) residuals side A (z>0), Bneg", 100, -.05, 0.05, 100, -0.05, 0.05 );
 217   pLPAResidualsHistBneg->SetXTitle("\\deltasin(\\phi)");
 218   pLPAResidualsHistBneg->SetYTitle("\\deltatan(\\lambda)");
 219   TH2F* pLPCResidualsHistBneg = new TH2F("fLPCResidualsHistBneg", "sin(\\phi) tan(\\lambda) residuals side C (z<0), Bneg", 100, -.05, 0.05, 100, -0.05, 0.05 );
 220   pLPCResidualsHistBneg->SetXTitle("\\deltasin(\\phi)");
 221   pLPCResidualsHistBneg->SetYTitle("\\deltatan(\\lambda)");
 222   TH2F* pPhiYAResidualsHistBneg = new TH2F("fPhiYAResidualsHistBneg","\\phi-\\deltar\\phi side A (z>0), Bneg",36,0.0,6.3,100,-1.5,1.5);
 223   pPhiYAResidualsHistBneg->SetXTitle("\\phi [rad]");
 224   pPhiYAResidualsHistBneg->SetYTitle("\\deltar\\phi [cm]");
 225   TH2F* pPhiYCResidualsHistBneg = new TH2F("fPhiYCResidualsHistBneg","\\phi-\\deltar\\phi side C (z<0), Bneg",36,0.0,6.3,100,-1.5,1.5);
 226   pPhiYCResidualsHistBneg->SetXTitle("\\phi [rad]");
 227   pPhiYCResidualsHistBneg->SetYTitle("\\deltar\\phi [cm]");
 228   TH2F* pPhiZAResidualsHistBneg = new TH2F("fPhiZAResidualsHistBneg","\\phi-\\deltaz side A (z>0), Bneg",36,0.0,6.3,100,-3.0,3.0);
 229   pPhiZAResidualsHistBneg->SetXTitle("\\phi [rad]");
 230   pPhiZAResidualsHistBneg->SetYTitle("\\deltaz [cm]");
 231   TH2F* pPhiZCResidualsHistBneg = new TH2F("fPhiZCResidualsHistBneg","\\Pt-\\deltaz side C (z<0), Bneg",36,0.0,6.3,100,-3.0,3.0);
 232   pPhiZCResidualsHistBneg->SetXTitle("\\phi [rad]");
 233   pPhiZCResidualsHistBneg->SetYTitle("\\deltaz [cm]");
 234   TH2F* pPtYAResidualsHistBneg = new TH2F("fPtYAResidualsHistBneg","Pt-\\deltar\\phi side A (z>0), Bneg",20,.3,8.,80,-1.5,1.5);
 235   pPtYAResidualsHistBneg->SetXTitle("Pt [rad]");
 236   pPtYAResidualsHistBneg->SetYTitle("\\deltar\\phi [cm]");
 237   TH2F* pPtYCResidualsHistBneg = new TH2F("fPtYCResidualsHistBneg","Pt-\\deltar\\phi side C (z<0), Bneg",20,.3,8.,80,-1.5,1.5);
 238   pPtYCResidualsHistBneg->SetXTitle("Pt [rad]");
 239   pPtYCResidualsHistBneg->SetYTitle("\\deltar\\phi [cm]");
 240   TH2F* pPtZAResidualsHistBneg = new TH2F("fPtZAResidualsHistBneg","Pt-\\deltaz side A (z>0), Bneg",20,.3,8.,80,-3.0,3.0);
 241   pPtZAResidualsHistBneg->SetXTitle("Pt");
 242   pPtZAResidualsHistBneg->SetYTitle("\\deltaz [cm]");
 243   TH2F* pPtZCResidualsHistBneg = new TH2F("fPtZCResidualsHistBneg","Pt-\\deltaz side C (z<0), Bneg",20,.3,8.,80,-3.0,3.0);
 244   pPtZCResidualsHistBneg->SetXTitle("Pt");
 245   pPtZCResidualsHistBneg->SetYTitle("\\deltaz [cm]");
 246   TH2F* pLowPtYAResidualsHistBneg = new TH2F("fLowPtYAResidualsHistBneg","Pt-\\deltar\\phi side A (z>0), Bneg",100,0.0,1.5,80,-1.5,1.5);
 247   pLowPtYAResidualsHistBneg->SetXTitle("Pt [rad]");
 248   pLowPtYAResidualsHistBneg->SetYTitle("\\deltar\\phi [cm]");
 249   TH2F* pLowPtYCResidualsHistBneg = new TH2F("fLowPtYCResidualsHistBneg","Pt-\\deltar\\phi side C (z<0), Bneg",100,0.0,1.5,80,-1.5,1.5);
 250   pLowPtYCResidualsHistBneg->SetXTitle("Pt [rad]");
 251   pLowPtYCResidualsHistBneg->SetYTitle("\\deltar\\phi [cm]");
 252   TH2F* pLowPtZAResidualsHistBneg = new TH2F("fLowPtZAResidualsHistBneg","Pt-\\deltaz side A (z>0), Bneg",100,0.0,1.5,80,-3.0,3.0);
 253   pLowPtZAResidualsHistBneg->SetXTitle("Pt");
 254   pLowPtZAResidualsHistBneg->SetYTitle("\\deltaz [cm]");
 255   TH2F* pLowPtZCResidualsHistBneg = new TH2F("fLowPtZCResidualsHistBneg","Pt-\\deltaz side C (z<0), Bneg",100,0.0,1.5,80,-3.0,3.0);
 256   pLowPtZCResidualsHistBneg->SetXTitle("Pt");
 257   pLowPtZCResidualsHistBneg->SetYTitle("\\deltaz [cm]");
 258   TList* listBneg = new TList();
 259   fList->Add(listBneg); //1
 260   listBneg->Add(pZYAResidualsHistBneg);
 261   listBneg->Add(pZYCResidualsHistBneg);
 262   listBneg->Add(pLPAResidualsHistBneg);
 263   listBneg->Add(pLPCResidualsHistBneg);
 264   listBneg->Add(pPhiYAResidualsHistBneg);
 265   listBneg->Add(pPhiYCResidualsHistBneg);
 266   listBneg->Add(pPhiZAResidualsHistBneg);
 267   listBneg->Add(pPhiZCResidualsHistBneg);
 268   listBneg->Add(pPtYAResidualsHistBneg);
 269   listBneg->Add(pPtYCResidualsHistBneg);
 270   listBneg->Add(pPtZAResidualsHistBneg);
 271   listBneg->Add(pPtZCResidualsHistBneg);
 272   listBneg->Add(pLowPtYAResidualsHistBneg);
 273   listBneg->Add(pLowPtYCResidualsHistBneg);
 274   listBneg->Add(pLowPtZAResidualsHistBneg);
 275   listBneg->Add(pLowPtZCResidualsHistBneg);
 276
 277   TH2F* pZYAResidualsHistBnil = new TH2F("fZYAResidualsHistBnil","z-r\\phi residuals side A (z>0), Bnil", 100, -3., 3., 100, -1.5, 1.5 );
 278   pZYAResidualsHistBnil->SetXTitle("\\deltaz [cm]");
 279   pZYAResidualsHistBnil->SetYTitle("\\deltar\\phi [cm]");
 280   TH2F* pZYCResidualsHistBnil = new TH2F("fZYCResidualsHistBnil","z-r\\phi residuals side C (z<0), Bnil", 100, -3., 3., 100, -1.5, 1.5 );
 281   pZYCResidualsHistBnil->SetXTitle("\\deltaz [cm]");
 282   pZYCResidualsHistBnil->SetYTitle("\\deltar\\phi [cm]");
 283   TH2F* pLPAResidualsHistBnil = new TH2F("fLPAResidualsHistBnil", "sin(\\phi) tan(\\lambda) residuals side A (z>0), Bnil", 100, -.05, 0.05, 100, -0.05, 0.05 );
 284   pLPAResidualsHistBnil->SetXTitle("\\deltasin(\\phi)");
 285   pLPAResidualsHistBnil->SetYTitle("\\deltatan(\\lambda)");
 286   TH2F* pLPCResidualsHistBnil = new TH2F("fLPCResidualsHistBnil", "sin(\\phi) tan(\\lambda) residuals side C (z<0), Bnil", 100, -.05, 0.05, 100, -0.05, 0.05 );
 287   pLPCResidualsHistBnil->SetXTitle("\\deltasin(\\phi)");
 288   pLPCResidualsHistBnil->SetYTitle("\\deltatan(\\lambda)");
 289   TH2F* pPhiYAResidualsHistBnil = new TH2F("fPhiYAResidualsHistBnil","\\phi-\\deltar\\phi side A (z>0), Bnil",36,0.0,6.3,100,-1.5,1.5);
 290   pPhiYAResidualsHistBnil->SetXTitle("\\phi [rad]");
 291   pPhiYAResidualsHistBnil->SetYTitle("\\deltar\\phi [cm]");
 292   TH2F* pPhiYCResidualsHistBnil = new TH2F("fPhiYCResidualsHistBnil","\\phi-\\deltar\\phi side C (z<0), Bnil",36,0.0,6.3,100,-1.5,1.5);
 293   pPhiYCResidualsHistBnil->SetXTitle("\\phi [rad]");
 294   pPhiYCResidualsHistBnil->SetYTitle("\\deltar\\phi [cm]");
 295   TH2F* pPhiZAResidualsHistBnil = new TH2F("fPhiZAResidualsHistBnil","\\phi-\\deltaz side A (z>0), Bnil",36,0.0,6.3,100,-3.0,3.0);
 296   pPhiZAResidualsHistBnil->SetXTitle("\\phi [rad]");
 297   pPhiZAResidualsHistBnil->SetYTitle("\\deltaz [cm]");
 298   TH2F* pPhiZCResidualsHistBnil = new TH2F("fPhiZCResidualsHistBnil","\\Pt-\\deltaz side C (z<0), Bnil",36,0.0,6.3,100,-3.0,3.0);
 299   pPhiZCResidualsHistBnil->SetXTitle("\\phi [rad]");
 300   pPhiZCResidualsHistBnil->SetYTitle("\\deltaz [cm]");
 301   TH2F* pPtYAResidualsHistBnil = new TH2F("fPtYAResidualsHistBnil","Pt-\\deltar\\phi side A (z>0), Bnil",20,.3,8.,80,-1.5,1.5);
 302   pPtYAResidualsHistBnil->SetXTitle("Pt [rad]");
 303   pPtYAResidualsHistBnil->SetYTitle("\\deltar\\phi [cm]");
 304   TH2F* pPtYCResidualsHistBnil = new TH2F("fPtYCResidualsHistBnil","Pt-\\deltar\\phi side C (z<0), Bnil",20,.3,8.,80,-1.5,1.5);
 305   pPtYCResidualsHistBnil->SetXTitle("Pt [rad]");
 306   pPtYCResidualsHistBnil->SetYTitle("\\deltar\\phi [cm]");
 307   TH2F* pPtZAResidualsHistBnil = new TH2F("fPtZAResidualsHistBnil","Pt-\\deltaz side A (z>0), Bnil",20,.3,8.,80,-3.0,3.0);
 308   pPtZAResidualsHistBnil->SetXTitle("Pt");
 309   pPtZAResidualsHistBnil->SetYTitle("\\deltaz [cm]");
 310   TH2F* pPtZCResidualsHistBnil = new TH2F("fPtZCResidualsHistBnil","Pt-\\deltaz side C (z<0), Bnil",20,.3,8.,80,-3.0,3.0);
 311   pPtZCResidualsHistBnil->SetXTitle("Pt");
 312   pPtZCResidualsHistBnil->SetYTitle("\\deltaz [cm]");
 313   TH2F* pLowPtYAResidualsHistBnil = new TH2F("fLowPtYAResidualsHistBnil","Pt-\\deltar\\phi side A (z>0), Bnil",100,0.0,1.5,80,-1.5,1.5);
 314   pLowPtYAResidualsHistBnil->SetXTitle("Pt [rad]");
 315   pLowPtYAResidualsHistBnil->SetYTitle("\\deltar\\phi [cm]");
 316   TH2F* pLowPtYCResidualsHistBnil = new TH2F("fLowPtYCResidualsHistBnil","Pt-\\deltar\\phi side C (z<0), Bnil",100,0.0,1.5,80,-1.5,1.5);
 317   pLowPtYCResidualsHistBnil->SetXTitle("Pt [rad]");
 318   pLowPtYCResidualsHistBnil->SetYTitle("\\deltar\\phi [cm]");
 319   TH2F* pLowPtZAResidualsHistBnil = new TH2F("fLowPtZAResidualsHistBnil","Pt-\\deltaz side A (z>0), Bnil",100,0.0,1.5,80,-3.0,3.0);
 320   pLowPtZAResidualsHistBnil->SetXTitle("Pt");
 321   pLowPtZAResidualsHistBnil->SetYTitle("\\deltaz [cm]");
 322   TH2F* pLowPtZCResidualsHistBnil = new TH2F("fLowPtZCResidualsHistBnil","Pt-\\deltaz side C (z<0), Bnil",100,0.0,1.5,80,-3.0,3.0);
 323   pLowPtZCResidualsHistBnil->SetXTitle("Pt");
 324   pLowPtZCResidualsHistBnil->SetYTitle("\\deltaz [cm]");
 325   TList* listBnil = new TList();
 326   fList->Add(listBnil); //2
 327   listBnil->Add(pZYAResidualsHistBnil);
 328   listBnil->Add(pZYCResidualsHistBnil);
 329   listBnil->Add(pLPAResidualsHistBnil);
 330   listBnil->Add(pLPCResidualsHistBnil);
 331   listBnil->Add(pPhiYAResidualsHistBnil);
 332   listBnil->Add(pPhiYCResidualsHistBnil);
 333   listBnil->Add(pPhiZAResidualsHistBnil);
 334   listBnil->Add(pPhiZCResidualsHistBnil);
 335   listBnil->Add(pPtYAResidualsHistBnil);
 336   listBnil->Add(pPtYCResidualsHistBnil);
 337   listBnil->Add(pPtZAResidualsHistBnil);
 338   listBnil->Add(pPtZCResidualsHistBnil);
 339   listBnil->Add(pLowPtYAResidualsHistBnil);
 340   listBnil->Add(pLowPtYCResidualsHistBnil);
 341   listBnil->Add(pLowPtZAResidualsHistBnil);
 342   listBnil->Add(pLowPtZCResidualsHistBnil);
 343   TH1F* pNmatchingEff=new TH1F("pNmatchingEff","matching efficiency",50,0.,1.);
 344   fList->Add(pNmatchingEff); //3
 345
 346   TH1I* pChecks = new TH1I("pChecks","various checks",10,0,10);
 347   pChecks->GetXaxis()->SetBinLabel(1+kNoESD,"no ESD");
 348   pChecks->GetXaxis()->SetBinLabel(1+kNoESDfriend,"no ESDfriend");
 349   pChecks->GetXaxis()->SetBinLabel(1+kNoFriendTrack,"no friendtrack");
 350   pChecks->GetXaxis()->SetBinLabel(1+kNoITSoutParams,"no params");
 351   pChecks->GetXaxis()->SetBinLabel(1+kESDfriend,"ESD friends");
 352   pChecks->GetXaxis()->SetBinLabel(1+kFriendsSkipBit,"friends+skipbit");
 353   pChecks->GetXaxis()->SetBinLabel(1+kFriendTrack,"friendtrack");
 354   pChecks->GetXaxis()->SetBinLabel(1+kITSoutParams,"params");
 355   fList->Add(pChecks); //4
 356
 357   fAligner = new AliRelAlignerKalman();
 358   fAligner->SetRejectOutliers(fRejectOutliers);
 359   fAligner->SetOutRejSigma(fOutRejSigma);
 360   fAligner->SetRejectOutliersSigma2Median(fRejectOutliersSigma2Median);
 361   fAligner->SetOutRejSigma2Median(fOutRejSigma2Median);
 362   fList->Add(fAligner);
 363
 364   fDebugTree = new TTree("debugTree","tree with debug info");
 365   fDebugTree->Branch("aligner","AliRelAlignerKalman",&fAligner);
 366 }
 367
 368 //________________________________________________________________________
 369 void AliAnalysisTaskITSTPCalignment::UserExec(Option_t *)
 370 {
 371   // Main loop
 372   // Called for each event
 373
 374   TH1I* pChecks = static_cast<TH1I*>(fList->At(4));
 375   //check for ESD and friends
 376   AliESDEvent* event = dynamic_cast<AliESDEvent*>(InputEvent());
 377   AliESDfriend* eventFriend = dynamic_cast<AliESDfriend*>(ESDfriend());
 378   if (!event)
 379   {
 380     AliError("no ESD");
 381     pChecks->Fill(kNoESD);
 382     return;
 383   }
 384
 385   if (!eventFriend)
 386   {
 387     AliError("no ESD friend");
 388     pChecks->Fill(kNoESDfriend);
 389     return;
 390   }
 391   else
 392   {
 393     pChecks->Fill(kESDfriend);
 394   }
 395
 396   if (eventFriend->TestSkipBit()) pChecks->Fill(kFriendsSkipBit);
 397
 398   //Update the parmeters
 399   AnalyzeESDevent(event);
 400
 401   // Post output data.
 402   PostData(0, fDebugTree);
 403   PostData(1, fList);
 404   PostData(2, fArrayITSglobal);
 405   PostData(3, fArrayITSsa);
 406 }
 407
 408 //________________________________________________________________________
 409 void AliAnalysisTaskITSTPCalignment::AnalyzeESDevent(AliESDEvent* event)
 410 {
 411   //analyze an ESD event with track matching
 412   Int_t ntracks = event->GetNumberOfTracks();
 413   if (ntracks==0) return;
 414
 415   if (fUseITSoutGlobalTrack)
 416   {
 417     AliRelAlignerKalman* alignerGlobal = fArrayITSglobal->GetAligner(event);
 418     if (alignerGlobal)
 419       alignerGlobal->AddESDevent(event);
 420   }
 421
 422   if (fUseITSoutITSSAtrack)
 423   {
 424     //get the aligner for the event
 425     //do it with matching
 426     TObjArray arrayParamITS(ntracks);
 427     TObjArray arrayParamTPC(ntracks);
 428
 429     Int_t n = FindMatchingTracks(arrayParamITS, arrayParamTPC, event);
 430     AliInfo(Form("n matched: %i\n",n));
 431
 432     TH1F* nMatchingEff=static_cast<TH1F*>(fList->At(3));
 433     Float_t ratio = (float)n/(float)ntracks;
 434     nMatchingEff->Fill(ratio);
 435
 436     AliRelAlignerKalman* alignerSA = NULL;
 437     if (n>0) alignerSA = fArrayITSsa->GetAligner(event);
 438
 439     for (Int_t i=0;i<n;i++)
 440     {
 441       AliExternalTrackParam* paramsITS=static_cast<AliExternalTrackParam*>(arrayParamITS[i]);
 442       AliExternalTrackParam* paramsTPC=static_cast<AliExternalTrackParam*>(arrayParamTPC[i]);
 443
 444       if (!(paramsITS&&paramsTPC)) continue;
 445
 446       //QA
 447       if (fDoQA) DoQA(paramsITS,paramsTPC);
 448
 449       //debug
 450       if (fAligner->AddTrackParams(paramsITS, paramsTPC))
 451       {
 452         fAligner->SetRunNumber(event->GetRunNumber());
 453         fAligner->SetMagField(event->GetMagneticField());
 454         fAligner->SetTimeStamp(event->GetTimeStamp());
 455       }
 456
 457       //alignment check
 458       if (alignerSA) alignerSA->AddTrackParams(paramsITS, paramsTPC);
 459     }
 460     arrayParamITS.Delete();
 461     arrayParamTPC.Delete();
 462   }
 463 }
 464
 465 //________________________________________________________________________
 466 void AliAnalysisTaskITSTPCalignment::Terminate(Option_t *)
 467 {
 468   // Called once at the end of the query
 469 }
 470
 471 //________________________________________________________________________
 472 Int_t AliAnalysisTaskITSTPCalignment::FindMatchingTracks(TObjArray& arrITS, TObjArray& arrTPC, AliESDEvent* pESD)
 473 {
 474   //find matching tracks and return tobjarrays with the params
 475   //fUniqueID of param object contains tracknumber in event.
 476
 477   TH1I* pChecks = static_cast<TH1I*>(fList->At(4));
 478   Int_t ntracks = pESD->GetNumberOfTracks();
 479   Double_t magfield = pESD->GetMagneticField();
 480
 481   Int_t* matchedArr = new Int_t[ntracks]; //storage for index of ITS track for which a match was found
 482   for (Int_t i=0;i<ntracks;i++)
 483   {
 484     matchedArr[i]=-1;
 485   }
 486
 487   Int_t iMatched=-1;
 488   for (Int_t i=0; i<ntracks; i++)
 489   {
 490     //get track1 and friend
 491     AliESDtrack* track1 = pESD->GetTrack(i);
 492     if (!track1) continue;
 493
 494     if (track1->GetNcls(0) < fMinPointsVol1) continue;
 495
 496     if (!( ( track1->IsOn(AliESDtrack::kITSrefit)) &&
 497            (!track1->IsOn(AliESDtrack::kTPCin)) )) continue;
 498
 499     const AliESDfriendTrack* constfriendtrack1 = track1->GetFriendTrack();
 500     if (!constfriendtrack1) {AliInfo(Form("no friendTrack1\n"));pChecks->Fill(kNoFriendTrack);continue;}
 501     pChecks->Fill(kFriendTrack);
 502     AliESDfriendTrack friendtrack1(*constfriendtrack1);
 503
 504     if (!friendtrack1.GetITSOut()) {pChecks->Fill(kNoITSoutParams);continue;}
 505     pChecks->Fill(kITSoutParams);
 506     AliExternalTrackParam params1(*(friendtrack1.GetITSOut()));
 507
 508     Double_t bestd = 1000.; //best distance
 509     Bool_t newi = kTRUE; //whether we start with a new i
 510     for (Int_t j=0; j<ntracks; j++)
 511     {
 512       if (matchedArr[j]>0 && matchedArr[j]!=i) continue; //already matched, everything tried
 513       //get track2 and friend
 514       AliESDtrack* track2 = pESD->GetTrack(j);
 515       if (!track2) continue;
 516       if (track1==track2) continue;
 517       if (!(track2->IsOn(AliESDtrack::kTPCin))) continue; //must be TPC
 518       if (!(track2->IsOn(AliESDtrack::kITSout))) continue; //must have ITS
 519
 520       //if (track2->GetNcls(0) != track1->GetNcls(0)) continue;
 521       //if (track2->GetITSClusterMap() != track1->GetITSClusterMap()) continue;
 522       if (track2->GetNcls(1) < fMinPointsVol2) continue; //min 80 clusters in TPC
 523       if (track2->GetTgl() > 1.) continue; //acceptance
 524       //cut crossing tracks
 525       if (!track2->GetInnerParam()) continue;
 526       if (!track2->GetOuterParam()) continue;
 527       if (track2->GetOuterParam()->GetZ()*track2->GetInnerParam()->GetZ()<0) continue;
 528       if (track2->GetInnerParam()->GetX()>90) continue;
 529       if (TMath::Abs(track2->GetInnerParam()->GetZ())<5.) continue; //too close to membrane?
 530
 531       AliExternalTrackParam params2(*(track2->GetInnerParam()));
 532
 533       //bring to same reference plane
 534       if (!params2.Rotate(params1.GetAlpha())) continue;
 535       if (!params2.PropagateTo(params1.GetX(), magfield)) continue;
 536
 537       //pt cut, only for data with magfield
 538       if ((params2.Pt()<fMinPt)&&(TMath::Abs(magfield)>1.)) continue;
 539       //else
 540       //if (fMC)
 541       // {
 542       //   AliStack* stack = fMC->Stack();
 543       //   Int_t label = track2->GetLabel();
 544       //   if (label<0) continue;
 545       //   TParticle* particle = stack->Particle(label);
 546       //   if (particle->Pt()<fMinPt) continue;
 547       // }
 548
 549       const Double32_t* p1 = params1.GetParameter();
 550       const Double32_t* p2 = params2.GetParameter();
 551
 552       //hard cuts
 553       Double_t dy = TMath::Abs(p2[0]-p1[0]);
 554       Double_t dz = TMath::Abs(p2[1]-p1[1]);
 555       Double_t dphi = TMath::Abs(p2[2]-p1[2]);
 556       Double_t dlam = TMath::Abs(p2[3]-p1[3]);
 557       if (dy > 2.0) continue;
 558       if (dz > 10.0) continue;
 559       if (dphi > 0.1 ) continue;
 560       if (dlam > 0.1 ) continue;
 561
 562       //best match only
 563       Double_t d = TMath::Sqrt(dy*dy+dz*dz+dphi*dphi+dlam*dlam);
 564       if ( d >= bestd) continue;
 565       bestd = d;
 566       matchedArr[j]=i; //j-th track matches i-th (ITS) track
 567       if (newi) iMatched++; newi=kFALSE; //increment at most once per i
 568       params1.SetUniqueID(i); //store tracknummer
 569       params2.SetUniqueID(j);
 570       if (arrITS[iMatched] && arrTPC[iMatched])
 571       {
 572         *(arrITS[iMatched]) = params1;
 573         *(arrTPC[iMatched]) = params2;
 574       }
 575       else
 576       {
 577         arrITS[iMatched] = new AliExternalTrackParam(params1);
 578         arrTPC[iMatched] = new AliExternalTrackParam(params2);
 579       }//else
 580     }//for j
 581   }//for i
 582   delete [] matchedArr;
 583   return iMatched+1;
 584 }
 585
 586 //________________________________________________________________________
 587 void AliAnalysisTaskITSTPCalignment::DoQA(AliExternalTrackParam* paramsITS,
 588     AliExternalTrackParam* paramsTPC)
 589 {
 590   //fill qa histograms in a given list, per field direction (5,-5,0)
 591   Float_t resy = paramsTPC->GetY() - paramsITS->GetY();
 592   Float_t resz = paramsTPC->GetZ() - paramsITS->GetZ();
 593   Float_t ressnp = paramsTPC->GetSnp() - paramsITS->GetSnp();
 594   Float_t restgl = paramsTPC->GetTgl() - paramsITS->GetTgl();
 595
 596   TList* pList=NULL;
 597   Double_t field = fInputEvent->GetMagneticField();
 598   if (field >= 1.)  pList = static_cast<TList*>(fList->At(0));
 599   if (field <= -1.) pList = static_cast<TList*>(fList->At(1));
 600   if (field < 1. && field > -1.) pList = static_cast<TList*>(fList->At(2));
 601   if (!pList) return;
 602
 603   TH2F* pZYAResidualsHist = static_cast<TH2F*>(pList->At(0));
 604   TH2F* pZYCResidualsHist = static_cast<TH2F*>(pList->At(1));
 605   TH2F* pLPAResidualsHist = static_cast<TH2F*>(pList->At(2));
 606   TH2F* pLPCResidualsHist = static_cast<TH2F*>(pList->At(3));
 607   TH2F* pPhiYAResidualsHist = static_cast<TH2F*>(pList->At(4));
 608   TH2F* pPhiYCResidualsHist = static_cast<TH2F*>(pList->At(5));
 609   TH2F* pPhiZAResidualsHist = static_cast<TH2F*>(pList->At(6));
 610   TH2F* pPhiZCResidualsHist = static_cast<TH2F*>(pList->At(7));
 611   TH2F* pPtYAResidualsHist = static_cast<TH2F*>(pList->At(8));
 612   TH2F* pPtYCResidualsHist = static_cast<TH2F*>(pList->At(9));
 613   TH2F* pPtZAResidualsHist = static_cast<TH2F*>(pList->At(10));
 614   TH2F* pPtZCResidualsHist = static_cast<TH2F*>(pList->At(11));
 615   TH2F* pLowPtYAResidualsHist = static_cast<TH2F*>(pList->At(12));
 616   TH2F* pLowPtYCResidualsHist = static_cast<TH2F*>(pList->At(13));
 617   TH2F* pLowPtZAResidualsHist = static_cast<TH2F*>(pList->At(14));
 618   TH2F* pLowPtZCResidualsHist = static_cast<TH2F*>(pList->At(15));
 619
 620   if (paramsITS->GetZ() > 0.0)
 621   {
 622     pZYAResidualsHist->Fill(resz,resy);
 623     pLPAResidualsHist->Fill(restgl,ressnp);
 624     pPhiYAResidualsHist->Fill(paramsTPC->Phi(),resy);
 625     pPhiZAResidualsHist->Fill(paramsTPC->Phi(),resz);
 626     pPtYAResidualsHist->Fill(paramsTPC->Pt(),resy);
 627     pPtZAResidualsHist->Fill(paramsTPC->Pt(),resz);
 628     pLowPtYAResidualsHist->Fill(paramsTPC->Pt(),resy);
 629     pLowPtZAResidualsHist->Fill(paramsTPC->Pt(),resz);
 630   }
 631   else
 632   {
 633     pZYCResidualsHist->Fill(resz,resy);
 634     pLPCResidualsHist->Fill(restgl,ressnp);
 635     pPhiYCResidualsHist->Fill(paramsTPC->Phi(),resy);
 636     pPhiZCResidualsHist->Fill(paramsTPC->Phi(),resz);
 637     pPtYCResidualsHist->Fill(paramsTPC->Pt(),resy);
 638     pPtZCResidualsHist->Fill(paramsTPC->Pt(),resz);
 639     pLowPtYCResidualsHist->Fill(paramsTPC->Pt(),resy);
 640     pLowPtZCResidualsHist->Fill(paramsTPC->Pt(),resz);
 641   }
 642 }