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    User name Z. Chai

    Log entry time 18:13:13 on July18,2000

    Entry number 46283

    keyword=old trigger vs new trigger good event rates

    Run 3052: 6msr coll., lack-of-aero in T3, good evts 130/mC.
    Run 3053: open coll., lack-of-aero in T3, good evts 177/mC.
    Run 3103: open coll., normal T3, good evts 165/mC.

    The conclusion is that the use of the aerogel cerenkov in the trigger does not exclude
    significant amount of protons. Since the new trigger can reduce the DAQ deadtime by several percent, we decided to keep using the new trigger for the left kinematics
    data taking.