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    User name Templon

    Log entry time 13:02:54 on October 7,2000

    Entry number 49659

    keyword=finally - PY-1F time peak

    Pete took a dummy cell run this AM that led to cracking the problem with
    the py-1f time peak. In the dummy run, one can clearly see the correct
    location to place the reactz difference cut. Placing a _narrow_ cut here
    allows the coincidence time peak to be seen. The figure below shows
    the coinc time peak from run 1518 with the following cuts:
    -0.025 -0.057 0.005 10 50 (asum<200.or.asum>5000) (hadron PID).
    .
    Figure 2 shows the same plot without the aerogel cut. The peak is still there
    but not as prominent (background goes up but not peak). Can somebody
    (mark?) who analyzed aerogel comment about whether the peak near zero
    is some pedestal or good events?



    FIGURE 1

    FIGURE 2