CLAS Physics Database

Measurement E216M504

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: 2.05 — 2.1 GeV

Measurement data
θ(p), [deg] dσ/d(−cos(θ(p))), [μb/rad] uncertainty
9.0 0.8399 0.0456041
27.0 0.810147 0.0407315
45.0 0.664397 0.0426235
63.0 0.599311 0.0297688
81.0 0.797528 0.0330311
99.0 0.954532 0.0288443
117.0 1.09408 0.030142
135.0 1.39426 0.0368111
153.0 1.9413 0.0482658
171.0 2.65626 0.0883602