CLAS Physics Database

Measurement E213M159

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: 1.4 — 1.425 GeV
Ebeam: 5.754 GeV

Measurement data
θ(p), [deg] dσ/d(−cos(θ(p))), [μb/rad] uncertainty syst. uncert. total uncert.
9.0 1.1514 0.0062 0.7279 1.0313
27.0 1.1241 0.0126 0.6974 0.9828
45.0 1.0701 0.028 0.5975 0.8453
63.0 1.0113 0.036 0.4901 0.4914
81.0 1.0817 0.0454 0.4261 0.4285
99.0 1.1165 0.0611 0.4156 0.4201
117.0 1.2096 0.0613 0.4264 0.4308
135.0 1.1892 0.0498 0.4585 0.6423
153.0 1.0821 0.0442 0.5165 0.8025
171.0 0.961 0.0111 0.6053 0.8602