CLAS Physics Database

Measurement E159M1021

Experiment: E1-6
Year: 2001

Experiment comment:

Experiment year: 2001—2002
Spokesperson: V. Burkert
Reaction: ep → π+πp
Polarization: none
Quantity: dσ/d(−cos(θ(π+)))
Q2: 4.2 — 5.0 GeV2
W: 1.8 GeV
Ebeam: 5.75 GeV

Measurement data
θ(π+), [deg] dσ/d(−cos(θ(π+))), [μb/rad] uncertainty
9.0 0.524117 0.176713
27.0 0.715298 0.18428
45.0 1.18298 0.319827
63.0 1.10689 0.264586
81.0 0.910574 0.188269
99.0 0.90718 0.197317
117.0 0.821533 0.162927
135.0 0.789406 0.190664
153.0 0.490484 0.345818
171.0 0.650043 0.523074