CLAS Physics Database

Measurement E213M204

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: 1.525 — 1.55 GeV
Ebeam: 5.754 GeV

Measurement data
θ(p), [deg] dσ/d(−cos(θ(p))), [μb/rad] uncertainty syst. uncert. total uncert.
9.0 1.7651 0.0911 0.8069 1.1371
27.0 1.6104 0.094 0.4916 0.6969
45.0 1.6242 0.1004 0.3653 0.3789
63.0 1.8276 0.1006 0.2898 0.3068
81.0 1.9866 0.0968 0.2982 0.3135
99.0 2.4542 0.1189 0.3816 0.3997
117.0 2.6188 0.1231 0.4201 0.4377
135.0 3.1294 0.1208 0.4282 0.6003
153.0 3.3983 0.1456 0.3858 0.5454
171.0 3.1886 0.2215 0.5515 0.78