CLAS Physics Database

Measurement E216M341

Experiment: CLAS12 Run Group A
Year: 2018
Spokesperson: Krishna Chandra
Reaction: ep → π+πp
Polarization: none
Quantity: dσ/d(−cos(θ(π+)))
Q2: 3.0 — 3.5 GeV2
W: 1.85 — 1.9 GeV

Measurement data
θ(π+), [deg] dσ/d(−cos(θ(π+))), [μb/rad] uncertainty
9.0 1.79763 0.115847
27.0 1.77182 0.0548637
45.0 1.7196 0.0393589
63.0 1.81094 0.0406814
81.0 1.98028 0.0760496
99.0 1.92415 0.0417864
117.0 1.66708 0.0449154
135.0 1.46231 0.151504
153.0 0.998053 0.0645588
171.0 0.981691 0.0093243