CLAS Physics Database

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Measurement E216M620

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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 : 4.2 — 5 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 1.10763 0.0598734 0.0873992
27 0.98708 0.0320294 0.07523499
45 0.826998 0.0233788 0.06207997
63 0.720145 0.0214569 0.05582395
81 0.69222 0.0238541 0.05260204
99 0.751404 0.0276174 0.05226773
117 0.59689 0.020921 0.04542685
135 0.503454 0.01922 0.0594212
153 0.467751 0.0283417 0.07881776
171 0.467483 0.00172398 0.24421954