CLAS Physics Database

Measurement E216M430

Experiment: CLAS12 Run Group A
Year: 2018
Spokesperson: Krishna Chandra
Reaction: ep → π+πp
Polarization: none
Quantity: dσ/d(−cos(θ(π)))
Q2: 3.5 — 4.2 GeV2
W: 1.65 — 1.7 GeV

Measurement data
θ(π), [deg] dσ/d(−cos(θ(π))), [μb/rad] uncertainty
9.0 1.63021 0.135162
27.0 1.38433 0.0560932
45.0 1.37466 0.0690777
63.0 1.18149 0.0614139
81.0 0.991589 0.0468293
99.0 0.988558 0.0607287
117.0 0.872053 0.0324482
135.0 0.869399 0.0368605
153.0 1.04542 0.0567886
171.0 1.12846 0.0879714