CLAS Physics Database

Measurement E213M384

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: 2.025 — 2.05 GeV
Ebeam: 5.754 GeV

Measurement data
θ(p), [deg] dσ/d(−cos(θ(p))), [μb/rad] uncertainty syst. uncert. total uncert.
9.0 2.0478 0.1366 0.381 0.4048
27.0 1.7202 0.0848 0.2506 0.2645
45.0 1.5989 0.0936 0.4194 0.4297
63.0 1.6491 0.095 0.3626 0.3748
81.0 1.8813 0.0976 0.307 0.3221
99.0 2.6516 0.1252 0.4067 0.4256
117.0 2.7262 0.1192 0.378 0.3963
135.0 3.51 0.1512 0.4456 0.4705
153.0 5.3615 0.2171 0.6311 0.6674
171.0 6.6291 0.6008 0.8142 1.0119