CLAS Physics Database

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Measurement E216M459

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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(p))), mcbn/rad
Differential cross section, where cos(θ(p)) is cosine of the azimuthal angle of p 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 : 1.8 — 1.85 GeV

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

Parameter (X axis): θ(p), deg

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

Measured data:

θ(p),
deg
dσ/d(−cos(θ(p))),
mcbn/rad
Stat. error,
mcbn/rad
Syst. error,
mcbn/rad
9 1.17049 0.0688631 0.19892138
27 0.951061 0.0449797 0.137694
45 0.898983 0.0404381 0.11023245
63 0.973645 0.0405712 0.10450604
81 1.17931 0.0549664 0.1089106
99 1.29447 0.0299676 0.11459499
117 1.2345 0.0303697 0.10470672
135 1.18889 0.0436009 0.1019101
153 1.2053 0.0425083 0.09665635
171 1.3744 0.0641812 0.12193575