CLAS Physics Database

Measurement E216M405

Experiment: CLAS12 Run Group A
Year: 2018
Spokesperson: Krishna Chandra
Reaction: ep → π+πp
Polarization: none
Quantity: dσ/d(−cos(θ(p)))
Q2: 3.5 — 4.2 GeV2
W: 1.5 — 1.55 GeV

Measurement data
θ(p), [deg] dσ/d(−cos(θ(p))), [μb/rad] uncertainty
9.0 0.511803 0.0608872
27.0 0.534492 0.0414725
45.0 0.595096 0.042028
63.0 0.559274 0.0263702
81.0 0.687381 0.0446462
99.0 0.670974 0.0621162
117.0 0.718787 0.0320946
135.0 0.899387 0.0538283
153.0 0.771827 0.0409038
171.0 0.82018 0.068352