CLAS Physics Database

Measurement E216M495

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: 2.0 — 2.05 GeV

Measurement data
θ(p), [deg] dσ/d(−cos(θ(p))), [μb/rad] uncertainty
9.0 0.984924 0.0739134
27.0 0.822557 0.0630718
45.0 0.693075 0.0239494
63.0 0.639536 0.0185294
81.0 0.803949 0.0228684
99.0 0.969324 0.0287546
117.0 1.12186 0.040211
135.0 1.33917 0.0345252
153.0 1.80203 0.131222
171.0 2.60507 0.0842308