CLAS Physics Database

Measurement E159M868

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: 3.5 — 4.2 GeV2
W: 1.975 GeV
Ebeam: 5.75 GeV

Measurement data
θ(π+), [deg] dσ/d(−cos(θ(π+))), [μb/rad] uncertainty
9.0 1.07151 0.232752
27.0 0.978785 0.176967
45.0 1.32634 0.244172
63.0 1.26381 0.219822
81.0 1.19452 0.199442
99.0 0.988191 0.160492
117.0 1.14835 0.195979
135.0 1.0454 0.333433
153.0 0.878951 0.641845
171.0 0.93393 0.769809