CLAS Physics Database

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Measurement E216M494

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Experiment: CLAS12 Run Group A, 2018

Spokespersons: Krishna Chandra

No publications available for this experiment

Quantity measured: dσ/d(−cos(θ(π+))), mcbn/rad
Differential cross section, where cos(θ(π+) is cosine of the azimuthal angle of π+ in CMS.
Beam: e, polarization: none
Target: p (Z=1, A=1), polarization: none
Final state: π+π−p, polarization: none

Q2 : 3.5 — 4.2 GeV2
W : 2 — 2.05 GeV

Observable quantity measured (Y axis): dσ/d(−cos(θ(π+))), mcbn/rad
Plot measurement data

Parameter (X axis): θ(π+), deg

Click here to get data in text file, delimited with tabs.

Measured data:

θ(π+),
deg
dσ/d(−cos(θ(π+))),
mcbn/rad
Stat. error,
mcbn/rad
Syst. error,
mcbn/rad
9 1.64858 0.0669936 0.13945186
27 1.38944 0.036849 0.11119026
45 1.14522 0.0243931 0.08780929
63 1.08524 0.0289302 0.08214347
81 1.09803 0.0355237 0.07985549
99 1.08022 0.0280181 0.07729845
117 1.03157 0.0307613 0.07194906
135 0.806761 0.0434175 0.07635491
153 0.837378 0.0518067 0.1373257
171 0.763501 0.00273804 0.40053075