CLAS Physics Database

Measurement E213M627

Experiment: E1-6, 2025
Year: 2001

Experiment comment:

Experiment year: 2001—2002
Spokespersons: R.W. Gothe, A. Trivedi
Reaction: ep → π+πp
Polarization: none
Quantity: dσ/d(−cos(θ(p)))
Q2: 2.4 — 3.0 GeV2
W: 1.975 — 2.0 GeV
Ebeam: 5.754 GeV

Measurement data
θ(p), [deg] dσ/d(−cos(θ(p))), [μb/rad] uncertainty syst. uncert. total uncert.
9.0 1.4583 0.0924 0.2582 0.3681
27.0 1.281 0.0657 0.1821 0.2601
45.0 1.2246 0.0651 0.2215 0.3158
63.0 1.3393 0.0807 0.3178 0.4444
81.0 1.7326 0.1009 0.2643 0.2829
99.0 2.0722 0.0965 0.2944 0.3098
117.0 2.3854 0.1054 0.3561 0.3714
135.0 2.5993 0.1097 0.379 0.3946
153.0 3.5938 0.1688 0.4713 0.5006
171.0 4.3512 0.2316 0.5816 0.626