-- AlexeiPavlinov - 02-Feb-2011

EMCAL_FIRSTYEARV1 geometry

            Simulation parameters (AliEMCALSimParam)

==============   PHE4400   ================== Parameters in Digitizer === 
    Electronics noise in EMC (fPinNoise)       = 0.012000
    Threshold  in EMC  (fDigitThreshold)       = 3
    Time Resolution (fTimeResolution)          = 6e-10
    Time Delay (fTimeDelay)                    = 6e-07
    Mean Photon-Electron (fMeanPhotonElectron) = 4400
    N channels in EC section ADC (fNADCEC)     = 65536

=== Parameters in SDigitizer === 
    sdigitization parameters       A = 0.000000
                                   B = 1000000.000000
    Threshold for EC Primary assignment  = 0.050000

• Resolution - reconstruction level ( ESD clusters)

  // pIn          - initial momenta of gamma
  // erec        - reconstruction value of gamma momenta 
  // eerec      - error of p
  // erecSig   - rms of p
  // eerecSig  - error of rms of p


 const  Int_t N = 16; // Dec 1,2010 - added 0.15 and 0.2 GeV
  static Double_t  pIn[N]={-0.15,0.2, 0.3,0.5,0.75, 1.,1.25,  1.5,2.0,3.0,5.0,6.0, 10., 20., 30., 50.};

  static Double_t  erec[N] ={0.1477, 0.1909, 0.2862, 0.4834, 0.7308, 0.976, 1.22,  1.469,  1.967,  2.957,  
                             4.954,  5.934,  9.938, 19.84, 29.75, 49.36};
  static Double_t  eerec[N]={0.00033, 0.0004, 0.0011, 0.0009, 0.0014, 0.002, 0.002, 0.002,  0.002,  0.0030, 
                             0.004,  0.005,  0.009,  0.02,  0.02,  0.05};
  static Double_t  erecSig[N]={0.02802, 0.03775, 0.04405,0.05728,0.0695,0.07917,0.09107,0.1011, 0.114, 0.1412,
                               0.1974,  0.2115, 0.3076,0.4893, 0.6332, 1.269};
  static Double_t eerecSig[N]={0.00041, 0.00077, 0.00079,0.00067,0.0009,0.00115,0.00134,0.0015,0.002,0.0022,
                               0.0034, 0.0035, 0.0065,0.0129, 0.0165, 0.038};

• Resolution vs initianal momentum of gamma: