CLAS Physics Database

Measurement E216M459

Experiment: CLAS12 Run Group A
Year: 2018
Spokesperson: Krishna Chandra
Reaction: ep → π+πp
Polarization: none
Quantity: dσ/d(−cos(θ(p)))
Q2: 3.5 — 4.2 GeV2
W: 1.8 — 1.85 GeV

Measurement data
θ(p), [deg] dσ/d(−cos(θ(p))), [μb/rad] uncertainty
9.0 1.17049 0.0688631
27.0 0.951061 0.0449797
45.0 0.898983 0.0404381
63.0 0.973645 0.0405712
81.0 1.17931 0.0549664
99.0 1.29447 0.0299676
117.0 1.2345 0.0303697
135.0 1.18889 0.0436009
153.0 1.2053 0.0425083
171.0 1.3744 0.0641812