BES-II Run QA

Under:
This page documents BES-II run-dependent QA

Algorithm packages:
 
Analysis cuts:
  • Event level cuts:
    • |vz| < 145 cm
    • vr < 2 cm
  • Pileup rejection:
    • Pileup rejection based on RefMult vs. bTofMatch will only be determined AFTER bad run rejection
    • Applied in StRefMultCorr
  • Track quality cuts:
    • Primary tracks
    • |eta| < 1.5
    • NHitsFit >= 10
    • DCA < 3 cm
    • 0.06 < pT < 2 GeV/c

Variables used to determine bad run lists
    Centrality LFSUPC FCV     CF       JetCorr HF       
TPC performance  RefMult
(A cut of RefMult>20 suggested for 19.6 GeV)
         
  Track eta X          
  Track phi X          
  sDCAxy mean and sigma X          
  dE/dx X          
               
bTOF status bTofMatch  X     X    
               
bTOF PID 1/beta          
               
eTOF performance* eTofHits           X
  eTofDeltaX, eTofDeltaY, eTof 1/beta          
               
EPD status EPD east hits          
  EPD west hits          
               
VPD status VPD east hits          
  VPD west hits          
               
BEMC status nBemcCluster          
  nBemcPidTraits          
  BemcTowerE         X  
               
BEMC PID BEMC E/p          
  BEMC ZDist, PhiDist          
  BEMCSMDNEta, BEMCSMDNPhi          
               
BEMC trigger BEMC ADC0          
  nBemcHitAboveThreshold          
               
MTD performance  nMtdHits, nMtdPidTraits           X
  MTD dTof, dZ, dY          
               
Analysis specific              
TPC EP Q1xTPC, Q1yTPC, Q2xTPC, Q2yTPC          
EPD EP Q1xEPD, Q1yEPD, Q2xEPD, Q2yEPD          
BBC EP Q1xBBC, Q1yBBC, Q2xBBC, Q2yBBC          
ZDC EP Q1xZDC, Q1yZDC, Q2xZDC, Q2yZDC          
               
Monitor Track pT            
  BBC rate, ZDC rate            
  vz, vr            
               



* First, we will need to consult eTOF experts on the variables to be checked