Measurement E213M831

Experiment:	E1-6, 2025
Year:	2001	Measurement comment: The angle ψ is the angle between the plane defined by the three-momenta of the hadron (in parentheses) and the target proton, and the plane defined by the three-momenta of the other two final-state hadrons Experiment comment: Experiment year: 2001—2002
Spokespersons:	R.W. Gothe, A. Trivedi
Reaction:	ep → π⁺π⁻p
Polarization:	none
Quantity:	dσ/dψ(p)
Q²:	3.0 — 3.5 GeV²
W:	1.825 — 1.85 GeV
E_beam:	5.754 GeV

Measurement data
ψ(p), [deg]	dσ/dψ(p), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.4082	0.0257	0.0836	0.0874
54.0	0.5412	0.0368	0.076	0.0844
90.0	0.4441	0.0324	0.0628	0.0707
126.0	0.4777	0.0377	0.0659	0.076
162.0	0.532	0.0393	0.0696	0.0799
198.0	0.5207	0.0499	0.0681	0.0844
234.0	0.4533	0.036	0.0636	0.0731
270.0	0.4944	0.0329	0.0686	0.076
306.0	0.4489	0.0282	0.066	0.0718
342.0	0.54	0.053	0.0962	0.1099

CLAS Physics Database