Optimization of pi0 vs. CTB sum for minB CuCu data Tower-only algo

  • used ~237,000 minB=66007 CuCu events from run R6034014 +R6035106
  • pedestals from R6026058
  • tower gains: ideal 60 GeV E_T=4096
  • Upper limit set on CTB sum
  • pi0 mass limit [0.02, 0.22], background from mixed events subtracted.

    CTBmax < 50
    nEve=15K of 237K
    Nrec=100, Nmix=82 mixFac=0.889
    Npi0=27 + / - 13
    s2b=0.37 + / - 0.059 mass/MeV=128 + / - 11 ,
    sig/MeV 22 + / - 6
    CTBmax < 100
    nEve=24K of 237K
    Nrec=384, Nmix=270 mixFac=0.947
    Npi0=128 + / - 25
    s2b=0.50 + / - 0.041 mass/MeV=134 + / - 7 ,
    sig/MeV 30 + / - 5
    CTBmax < 200
    nEve=39K
    Nrec=1360, Nmix=1037 mixFac=0.969
    Npi0=355 + / - 48
    s2b=0.35 + / - 0.015
    mass/MeV=139 + / - 5 ,
    sig/MeV 30 + / - 3
    CTBmax < 500
    nEve=72K of 237K
    Nrec=8074, Nmix=6783 mixFac=0.972
    Npi0=1483 + / - 120
    s2b=0.23 + / - 0.004 mass/MeV=137 + / - 3 ,
    sig/MeV 31 + / - 2
    CTBmax < 1000
    nEve=107K of 237K
    Nrec=27812, Nmix=24882 mixFac=0.984
    Npi0=3338 + / - 228
    s2b=0.14 + / - 0.001 mass/MeV=140 + / - 3 ,
    sig/MeV 32 + / - 2
    CTBmax < 2000
    nEve=149K of 237K
    Nrec=77059, Nmix=71956 mixFac=0.988
    Npi0=5985 + / - 384
    s2b=0.08 + / - 0.000 mass/MeV=131 + / - 3 ,
    sig/MeV 27 + / - 1
    CTBmax < 4000
    nEve=197K of 237K
    Nrec=148218, Nmix=137157 mixFac=0.984
    Npi0=13192 + / - 530
    s2b=0.10 + / - 0.000 mass/MeV=133 + / - 2 ,
    sig/MeV 30 + / - 1



    CTBmax < 4000