CLAS Physics Database

Measurement E216M620

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: 2.0 — 2.05 GeV

Measurement data
θ(π+), [deg] dσ/d(−cos(θ(π+))), [μb/rad] uncertainty
9.0 1.10763 0.0598734
27.0 0.98708 0.0320294
45.0 0.826998 0.0233788
63.0 0.720145 0.0214569
81.0 0.69222 0.0238541
99.0 0.751404 0.0276174
117.0 0.59689 0.020921
135.0 0.503454 0.01922
153.0 0.467751 0.0283417
171.0 0.467483 0.00172398