CLAS Physics Database

Measurement E213M932

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(π+)))
Q2: 3.0 — 3.5 GeV2
W: 2.1 — 2.125 GeV
Ebeam: 5.754 GeV

Measurement data
θ(π+), [deg] dσ/d(−cos(θ(π+))), [μb/rad] uncertainty syst. uncert. total uncert.
9.0 2.2966 0.1536 0.3127 0.3484
27.0 1.7969 0.1304 0.2717 0.3014
45.0 1.4717 0.1102 0.2676 0.2894
63.0 1.2721 0.1009 0.2463 0.2661
81.0 1.1165 0.0613 0.1978 0.2071
99.0 1.1803 0.0767 0.2047 0.2186
117.0 0.9637 0.0597 0.1818 0.1913
135.0 0.7876 0.0595 0.1778 0.1875
153.0 0.658 0.0459 0.2832 0.2869
171.0 1.0901 0.0033 0.6623 0.6623