CLAS Physics Database

Measurement E213M357

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: 1.95 — 1.975 GeV
Ebeam: 5.754 GeV

Measurement data
θ(p), [deg] dσ/d(−cos(θ(p))), [μb/rad] uncertainty syst. uncert. total uncert.
9.0 2.5813 0.1672 0.4599 0.6485
27.0 2.1927 0.0987 0.2841 0.405
45.0 2.067 0.0959 0.3855 0.5455
63.0 1.9711 0.1103 0.4042 0.419
81.0 2.3306 0.1265 0.3165 0.3408
99.0 3.163 0.1472 0.4083 0.434
117.0 2.9712 0.1117 0.4062 0.4213
135.0 3.7553 0.1438 0.464 0.6561
153.0 4.4034 0.5713 0.5128 0.8688
171.0 6.3491 0.334 0.7321 1.0438