CLAS Physics Database

Measurement E216M439

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: 1.7 — 1.75 GeV

Measurement data
θ(π), [deg] dσ/d(−cos(θ(π))), [μb/rad] uncertainty
9.0 1.52691 0.121894
27.0 1.53081 0.0693751
45.0 1.35415 0.0463537
63.0 1.45276 0.0647939
81.0 1.35034 0.0430386
99.0 1.30329 0.0431776
117.0 1.20065 0.043538
135.0 1.16675 0.03864
153.0 1.2807 0.0549234
171.0 1.65119 0.108209