CLAS Physics Database

Measurement E213M780

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: 3.0 — 3.5 GeV2
W: 1.675 — 1.7 GeV
Ebeam: 5.754 GeV

Measurement data
θ(p), [deg] dσ/d(−cos(θ(p))), [μb/rad] uncertainty syst. uncert. total uncert.
9.0 1.0476 0.1042 0.2563 0.5656
27.0 1.1707 0.1038 0.1892 0.2708
45.0 1.1959 0.0867 0.1768 0.25
63.0 1.4111 0.0907 0.1974 0.2173
81.0 1.9079 0.1149 0.2537 0.2785
99.0 1.9651 0.1213 0.2674 0.2936
117.0 1.8901 0.3847 0.2611 0.4649
135.0 2.1364 0.1339 0.283 0.4009
153.0 1.8197 0.0968 0.2372 0.3352
171.0 1.6175 0.1643 0.2455 0.3464