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    User name wang xu

    Log entry time 11:18:39 on February 23,1999

    Entry number 15382

    keyword=Helicity check 3

    The ratio betwwen N+(event gated by helicity flag plus)/Q+ and N-/Q+ is 0.9995. the inefficiency of time is 0.004489,In efficient of charge is about 0.004506 and inefficiency of event gated by helicity flag is about 0.004506. This perfectly make sense.