CLAS Physics Database

Measurement E216M386

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: 1.4 — 1.45 GeV

Measurement data
θ(π+), [deg] dσ/d(−cos(θ(π+))), [μb/rad] uncertainty
9.0 0.55607 0.111817
27.0 0.507364 0.0439376
45.0 0.508227 0.0323538
63.0 0.410554 0.0309735
81.0 0.368169 0.025313
99.0 0.443719 0.0500101
117.0 0.388645 0.0234366
135.0 0.337956 0.0219296
153.0 0.453615 0.0022472
171.0 0.546492 0.00054127