CLAS Physics Database

Measurement E213M375

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: 2.0 — 2.4 GeV2
W: 2.0 — 2.025 GeV
Ebeam: 5.754 GeV

Measurement data
θ(p), [deg] dσ/d(−cos(θ(p))), [μb/rad] uncertainty syst. uncert. total uncert.
9.0 1.9566 0.1854 0.4009 0.4417
27.0 1.9428 0.0992 0.284 0.3009
45.0 1.8454 0.1072 0.4349 0.448
63.0 1.677 0.1095 0.3953 0.4102
81.0 2.1051 0.1094 0.3263 0.3441
99.0 2.7183 0.1221 0.4398 0.4564
117.0 3.117 0.1352 0.4574 0.4769
135.0 3.645 0.1509 0.4945 0.517
153.0 5.4323 0.2464 0.672 0.7158
171.0 5.9202 0.5653 0.791 0.9722