correct T0 calculation for old data

diff --git a/T0/AliT0Reconstructor.cxx b/T0/AliT0Reconstructor.cxx
index 6b288d172e219c4988a1a1e3483ae92d3b8a699e..3664505b7bd353e151b8713b197c705005192253 100644 (file)
--- a/T0/AliT0Reconstructor.cxx
+++ b/T0/AliT0Reconstructor.cxx
@@ -301,7 +301,7 @@ void AliT0Reconstructor::Reconstruct(AliRawReader* rawReader, TTree*recTree) con
 {
   // T0 raw ->
   //
-  
+
   Float_t meanOrA = fTime0vertex[0] + 587;
   Float_t meanOrC = fTime0vertex[0] + 678;
   Float_t meanTVDC = fTime0vertex[0] + 2564;
@@ -315,7 +315,7 @@ void AliT0Reconstructor::Reconstruct(AliRawReader* rawReader, TTree*recTree) con
     timeDelayCFD[i] =  Int_t (fParam->GetTimeDelayCFD(i));
   }
   Int_t equalize = GetRecoParam() -> GetEq();
-  printf( "AliT0Reconstructor::Reconstruct::: RecoParam %i \n",equalize);
+  //  printf( "AliT0Reconstructor::Reconstruct::: RecoParam %i \n",equalize);
   fCalib->SetEq(equalize);
   Int_t low[500], high[500];
   Float_t timefull=-9999;;
@@ -436,8 +436,8 @@ void AliT0Reconstructor::Reconstruct(AliRawReader* rawReader, TTree*recTree) con
           else
             adc[ipmt] = 0;
           //      time[ipmt] = fCalib-> WalkCorrection(refAmp, ipmt, Int_t(adc[ipmt]), timeCFD[ipmt] ) ;
-          
-          time[ipmt] = fCalib-> WalkCorrection(Int_t (fTime0vertex[ipmt]), ipmt, Int_t(adc[ipmt]), timeCFD[ipmt] ) ;
+          Int_t refAmp = Int_t (fTime0vertex[ipmt]);
+          time[ipmt] = fCalib-> WalkCorrection( refAmp, ipmt, Int_t(adc[ipmt]), timeCFD[ipmt] ) ;
           Double_t sl = timeLED[ipmt] - timeCFD[ipmt];
           // time[ipmt] = fCalib-> WalkCorrection( refAmp,ipmt, Int_t(sl), timeCFD[ipmt] ) ;
           AliDebug(5,Form(" ipmt %i QTC %i , time in chann %i (led-cfd) %i ",
@@ -449,11 +449,14 @@ void AliT0Reconstructor::Reconstruct(AliRawReader* rawReader, TTree*recTree) con
           TGraph * qtGraph = (TGraph*)fQTC.At(ipmt);
           if (qtGraph) qtMip = qtGraph->Eval(adc[ipmt]);
           AliDebug(10,Form("  Amlitude in MIPS LED %f ; QTC %f;  in channels %f\n ",ampMip,qtMip, adc[ipmt]));
-          if( equalize  ==0 ) 
-            frecpoints.SetTime(ipmt, Float_t(time[ipmt]) );
+          if( qtMip>lowAmpThreshold && qtMip<highAmpThreshold )
+            {
+              if( equalize  ==0 ) 
+                frecpoints.SetTime(ipmt, Float_t(time[ipmt]) );
           else 
             frecpoints.SetTime(ipmt, Float_t(time[ipmt] + fTime0vertex[ipmt]) );
-
+              // frecpoints.SetTime(ipmt, Float_t(time[ipmt] ) );
+            }
           frecpoints.SetAmp(ipmt, Double32_t( qtMip)); 
           adcmip[ipmt]=qtMip;
           frecpoints.SetAmpLED(ipmt, Double32_t(ampMip));           
@@ -516,8 +519,13 @@ void AliT0Reconstructor::Reconstruct(AliRawReader* rawReader, TTree*recTree) con
                       frecpoints.Get1stTimeC(),  frecpoints.GetBestTimeC(), 
                       fTimeMeanShift[1],fTimeMeanShift[2] ) );
        if( besttimeC < 999999 &&  besttimeA < 999999) { 
-        timeclock = channelWidth * Float_t( besttimeA+besttimeC)/2. - fTimeMeanShift[0];
-        meanTime = channelWidth * Float_t(besttimeA_best + besttimeC_best )/2.;
+        if(equalize  ==0 )
+          timeclock = ((besttimeC * channelWidth)- 1000.*fLatencyHPTDC +1000.*fLatencyL1 - 1000.*fGRPdelays - fTimeMeanShift[0]);
+        else
+          {
+            timeclock = channelWidth * Float_t( besttimeA+besttimeC)/2. - fTimeMeanShift[0];
+            meanTime = channelWidth * Float_t(besttimeA_best + besttimeC_best )/2.;
+          }
         timeDiff = ( besttimeA - besttimeC)* 0.001* channelWidth ;
         vertex =  meanVertex - c*(timeDiff)/2. ; //+ (fdZonA - fdZonC)/2; 
        }