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    User name E04012

    Log entry time 12:49:18 on May28,2004

    Entry number 123536

    This entry is a followup to: 123476

    Followups:

    keyword=Doubts about T7.C script & results

    I don't think the calculation in the T7.C script is correct. The script calculates #T7/(#all triggers) ~ #T7/(#T5+#T7). Because T5 is heavily prescaled, of course you get something close to unity.

    What you need to do is what Xiaochao did: #T7/(PS5*#T5). For run 1346 and Yi's tight cuts, I get #T7 = 6222, #T5 = 1317, so eff = 6222/(6*1317) = 78%

    Please fix that script to include the T5 prescale factor.