CLAS Physics Database

Measurement E216M503

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: 2.05 — 2.1 GeV

Measurement data
θ(π+), [deg] dσ/d(−cos(θ(π+))), [μb/rad] uncertainty
9.0 1.77985 0.0655114
27.0 1.54605 0.0361826
45.0 1.21364 0.0302879
63.0 1.07111 0.0298243
81.0 1.05191 0.0317137
99.0 1.00638 0.031387
117.0 0.943849 0.037521
135.0 0.777454 0.02444
153.0 0.782163 0.0369949
171.0 0.660084 0.00227477