CLAS Physics Database

Measurement E213M636

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: 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 1.2014 0.0835 0.2121 0.2279
27.0 1.1978 0.0576 0.1655 0.1753
45.0 1.1048 0.0694 0.2048 0.2162
63.0 1.2283 0.0993 0.2989 0.3149
81.0 1.4871 0.078 0.2243 0.2374
99.0 1.9456 0.0974 0.2811 0.2975
117.0 2.3255 0.1063 0.3547 0.3703
135.0 2.8768 0.138 0.3928 0.4164
153.0 3.88 0.2224 0.4864 0.5349
171.0 4.5425 0.2639 0.5744 0.6321