[d2n-analysis-talk] LHRS Cut Performance History Follow Up

[David Flay]

Hi all,

I have re-evaluated the cut performances for the T3, T4, VDC, and One
Track cuts, using the new baseline cut of:

(L.tr.n>0)&&(ExTgtCor_L.p>0)&&(ExTgtCor_L.p<10)

Where I now explicitly require a good value of momentum in addition to at
least one track.

The results are much more stable as a function of run number (see
attached).  I've also attached a zoomed-in version of the plot, where one
can note that there still is a slight drop of ~1% in the T3 acceptance
rate for the highest momentum settings in the LHRS.  Even with this, the
T3 acceptance rate is >= 98.5%.  This is a large improvement from the
initial 8% drop seen in last week's talk.

Dave

-------------------------------------------------
David Flay
Physics Department
Temple University
Philadelphia, PA 19122

office: Barton Hall, BA319
phone: (215) 204-1331

e-mail: flay at jlab.org
            flay at temple.edu

website: http://www.jlab.org/~flay
              http://quarks.temple.edu
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