CLAS Physics Database

Measurement E216M494

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: 2.0 — 2.05 GeV

Measurement data
θ(π+), [deg] dσ/d(−cos(θ(π+))), [μb/rad] uncertainty
9.0 1.64858 0.0669936
27.0 1.38944 0.036849
45.0 1.14522 0.0243931
63.0 1.08524 0.0289302
81.0 1.09803 0.0355237
99.0 1.08022 0.0280181
117.0 1.03157 0.0307613
135.0 0.806761 0.0434175
153.0 0.837378 0.0518067
171.0 0.763501 0.00273804