CLAS Physics Database

Measurement E216M466

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: 1.85 — 1.9 GeV

Measurement data
θ(π), [deg] dσ/d(−cos(θ(π))), [μb/rad] uncertainty
9.0 1.40107 0.0679117
27.0 1.32571 0.0686583
45.0 1.3776 0.0471992
63.0 1.27896 0.0441955
81.0 1.21205 0.0326482
99.0 1.05449 0.028184
117.0 0.904291 0.0317078
135.0 0.833819 0.0246941
153.0 0.894644 0.0337154
171.0 1.21015 0.104099