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    User name Jin Huang

    Log entry time 00:27:00 on February16,2009

    Entry number 261387

    This entry is a followup to: 261371

    keyword=Correction: Software sum of total sum 19

    Xin just reminded me that the index of channels is starting from 0 in software. Therefore, all plots are redrawn as below.

    Fig1, from up to down, is software sum 18, 19, 20. Still Sum19 has similar shape and statistic as sum18 and sum20. However, mean value of sum19 is ~20% lower than sum18 or sum20.

    To be explicit, the code to draw software sum19 is
    T->Draw("BB.ts.sh.a[(27*0+18)]+BB.ts.sh.a[(27*1+18)]+BB.ts.sh.a[(27*2+18)]+BB.ts.sh.a[(27*3+18)]+BB.ts.sh.a[(27*4+18)]+BB.ts.sh.a[(27*5+18)]+BB.ts.sh.a[(27*6+18)]+BB.ts.ps.a[(27*0+18)]+BB.ts.ps.a[(27*1+18)]+BB.ts.sh.a[(27*0+19)]+BB.ts.sh.a[(27*1+19)]+BB.ts.sh.a[(27*2+19)]+BB.ts.sh.a[(27*3+19)]+BB.ts.sh.a[(27*4+19)]+BB.ts.sh.a[(27*5+19)]+BB.ts.sh.a[(27*6+19)]+BB.ts.ps.a[(27*0+19)]+BB.ts.ps.a[(27*1+19)]>>SoftSum19(50)");


    FIGURE 1