CLAS Physics Database

Measurement E216M476

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: 1.9 — 1.95 GeV

Measurement data
θ(π+), [deg] dσ/d(−cos(θ(π+))), [μb/rad] uncertainty
9.0 1.43082 0.05468
27.0 1.37704 0.0327746
45.0 1.21273 0.0272578
63.0 1.23103 0.027549
81.0 1.28913 0.032939
99.0 1.35271 0.0371487
117.0 1.15389 0.0281754
135.0 0.987262 0.0381148
153.0 0.821564 0.0429735
171.0 0.770229 0.00203763