CLAS Physics Database

Measurement E216M197

Experiment: CLAS12 Run Group A
Year: 2018
Spokesperson: Krishna Chandra
Reaction: ep → π+πp
Polarization: none
Quantity: dσ/d(−cos(θ(π+)))
Q2: 2.4 — 3.0 GeV2
W: 1.75 — 1.8 GeV

Measurement data
θ(π+), [deg] dσ/d(−cos(θ(π+))), [μb/rad] uncertainty
9.0 2.28413 0.0944637
27.0 2.35279 0.0492537
45.0 2.38705 0.0383321
63.0 2.35508 0.0406016
81.0 2.63754 0.0430176
99.0 2.52548 0.0541018
117.0 2.36667 0.0376844
135.0 2.19593 0.0630317
153.0 1.62264 0.0639775
171.0 1.92167 0.016962