CLAS Physics Database

Measurement E216M502

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: 2.05 — 2.1 GeV

Measurement data
θ(π), [deg] dσ/d(−cos(θ(π))), [μb/rad] uncertainty
9.0 1.85737 0.0786318
27.0 1.67409 0.0577691
45.0 1.34672 0.0512357
63.0 1.11729 0.0446859
81.0 0.983927 0.0277779
99.0 0.914105 0.0360579
117.0 0.773676 0.0220243
135.0 0.715187 0.0225573
153.0 0.749966 0.0283561
171.0 1.10371 0.0551864