CLAS Physics Database

Measurement E216M566

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: 1.7 — 1.75 GeV

Measurement data
θ(π+), [deg] dσ/d(−cos(θ(π+))), [μb/rad] uncertainty
9.0 1.00071 0.0650348
27.0 0.962662 0.0337988
45.0 0.915736 0.0287917
63.0 0.916495 0.0264559
81.0 1.0142 0.0294473
99.0 1.05327 0.0393474
117.0 0.934787 0.0455611
135.0 0.894665 0.0784015
153.0 0.717358 0.0457899
171.0 0.814126 0.00238425