Sartre 1.20 pp 250x250 GeV

sigma = 4.51 nb

cross section doubled to account for
 photon source from both beams

L = 400 pb^-1
efficeincies: STAR uptime 70%
	      J/Psi tracking & vertexing 50%
BR(J/Psi->ee) = 0.0594

Roman Pot: 0.19 < |t| < 1.9 (GeV/c)^2
(scaled from 100 GeV range by (250/100)^2)

Daughter electron pseudorapidities:
    both  -1 < eta < 2.2 (BEMC+EEMC)
 or both 2.8 < eta < 4 (FMS)

Events counts, from rapidity distribution:

all rapidity: 11.6k
rapidity>2.5:   700

PLOTS
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proton_t.png:
proton |t| after daughter fiducial cuts

jpsi_rapidity.png:
J/Psi rapidity (not pseudorapidity) after daughter fiducial cuts and RP t cuts

xq2.png:
Q^2 vs. x after daughter fiducial cuts and RP t cuts