General Information

LHC11h pass2 --> PbPb at 2.76 TeV in EMCal triggered events (Threshold V0 dependent 5-10 GeV)

AOD095 - pass2 Run selected based on HFEList 1.25 M Events ---> L1 Gamma Trigger(EMCal) + VtxZ < 10 cm

 Int_t run_numbers[86]= {
      170593, 170572, 170388, 170387, 170315, 170313, 170312, 170311, 170309, 170270, 
      170269, 170268, 170230, 170228, 170204, 170203, 170193, 170163, 170091, 170089, 
      170088, 170085, 170084, 170083, 170081, 170040, 170027, 169859, 169858, 169855, 
      169846, 169838, 169837, 169835, 169591, 169588, 169554, 169550, 169512, 169504, 
      169498, 169475, 169419, 169418, 169417, 169238, 169167, 169160, 169156, 169148, 
      169145, 169144, 169138, 169099, 169044, 169035, 168992, 168988, 168826, 168777, 
      168514, 168512, 168511, 168460, 168458, 168362, 168361, 168342, 168341, 168325, 
      168322, 168311, 170308, 170159, 169965, 169586, 169415, 169094, 168467, 170306,
      170155, 169923, 169557, 169411, 169091, 168464};

General Cuts

SPD or SDD any

ITS,TPC Refit

TPCNcls > 90

1 - 20 - 60%

Cuts

-3 < nsigmaTPC < 3.

ptleg> 1.2 GeV/c

Eleg1> 4 GeV/c, -3 < nSigmaEMCal leg1 < 4.  

Leg2 -> Exclusion pion sigmapion > 4.5

1.1 - Pt pair > 6 GeV/c

Figure 1.1 - InvMass Distributions

2 - ITS Studies

ITS layer 1

Figure 2.a - InvMass Distributions

ITS layer 2

Figure 2.b - InvMass Distributions

ITS layer 3

Figure 2.c - InvMass Distributions

ITS layer 4

Figure 2.d - InvMass Distributions

ITS layer 5

Figure 2.e - InvMass Distributions

-- MarcelFigueredo - 18-Oct-2012