CLAS Physics Database

Measurement E213M411

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: 2.1 — 2.125 GeV
Ebeam: 5.754 GeV

Measurement data
θ(p), [deg] dσ/d(−cos(θ(p))), [μb/rad] uncertainty syst. uncert. total uncert.
9.0 1.43 0.1082 0.2841 0.304
27.0 1.1422 0.0765 0.2094 0.223
45.0 1.2978 0.074 0.4266 0.433
63.0 1.396 0.0956 0.3167 0.3309
81.0 1.6162 0.0916 0.3281 0.3406
99.0 1.9142 0.0929 0.3082 0.3219
117.0 2.1934 0.1297 0.2968 0.3239
135.0 3.1377 0.139 0.3855 0.4098
153.0 4.9424 0.1842 0.5892 0.6173
171.0 5.3539 0.2819 0.7666 0.8168