CLAS Physics Database

Measurement E216M629

Experiment: CLAS12 Run Group A
Year: 2018
Spokesperson: Krishna Chandra
Reaction: ep → π+πp
Polarization: none
Quantity: dσ/d(−cos(θ(π+)))
Q2: 4.2 — 5.0 GeV2
W: 2.05 — 2.1 GeV

Measurement data
θ(π+), [deg] dσ/d(−cos(θ(π+))), [μb/rad] uncertainty
9.0 1.28911 0.0621754
27.0 0.999607 0.0372381
45.0 0.85884 0.0274723
63.0 0.686775 0.0205217
81.0 0.727463 0.026329
99.0 0.679772 0.0288649
117.0 0.584239 0.0456399
135.0 0.499432 0.0299885
153.0 0.417663 0.0247207
171.0 0.403524 0.00191463