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    User name mcnulty

    Log entry time 17:03:03 on March 25, 2010

    Entry number 313678

    keyword=More on A_T events

    This post examines runs 6196 (Rarm) and 26783 (Larm).  These are
    ultrathin Carbon runs with sieve out.  The A_T plug is unblocked in the
    Rarm and blocked in the Larm.
    
    Figure 1: Rarm focal plane x versus target y (can see the A_T blob)
    Figure 2: Larm focal plane x versus target y (cannot see the A_T blob)
    
    Figure 3: Rarm projected focal plane x vs y with a target y cut around
    the "a_t blob"
    Figure 4: Larm projected focal plane x vs y with a target y cut symmetric
    with the cut made for figure 3.
    
    Figure 5: The x projection of figure 3 (Rarm), can see the pronounced A_T
    event peak precisely where it should be.
    Figure 6: The x projection of figure 4 (Larm), can see the lack of a A_T
    event peak.
    


    A copy of this log entry has been emailed to: kkumar@jlab.org,rom@jlab.org,souder@jlab.org



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    Figure 6