CLAS Physics Database

Measurement E216M540

Experiment: CLAS12 Run Group A
Year: 2018
Spokesperson: Krishna Chandra
Reaction: ep → π+πp
Polarization: none
Quantity: dσ/d(−cos(θ(p)))
Q2: 4.2 — 5.0 GeV2
W: 1.55 — 1.6 GeV

Measurement data
θ(p), [deg] dσ/d(−cos(θ(p))), [μb/rad] uncertainty
9.0 0.226205 0.0315139
27.0 0.326772 0.0824956
45.0 0.383568 0.0758784
63.0 0.346904 0.0228672
81.0 0.416329 0.0439482
99.0 0.48595 0.0435581
117.0 0.49138 0.0227738
135.0 0.622562 0.0542915
153.0 0.540678 0.0318691
171.0 0.559439 0.0632784