CLAS Physics Database

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Measurement E216M197

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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+πp, polarization: none

Q2 : 2.4 — 3 GeV2
W : 1.75 — 1.8 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 2.28413 0.0944637 0.18880687
27 2.35279 0.0492537 0.19696023
45 2.38705 0.0383321 0.19436698
63 2.35508 0.0406016 0.18370026
81 2.63754 0.0430176 0.20349502
99 2.52548 0.0541018 0.18784474
117 2.36667 0.0376844 0.27026927
135 2.19593 0.0630317 0.38628558
153 1.62264 0.0639775 0.47849581
171 1.92167 0.016962 1.09101743