Measurement E213M1038

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:	3.5 — 4.2 GeV²
W:	1.675 — 1.7 GeV
E_beam:	5.754 GeV

Measurement data
ψ(p), [deg]	dσ/dψ(p), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.5025	0.0441	0.0875	0.098
54.0	0.3961	0.0321	0.058	0.0821
90.0	0.4045	0.029	0.0561	0.0632
126.0	0.3528	0.0241	0.0492	0.0548
162.0	0.4064	0.0248	0.0542	0.0771
198.0	0.4401	0.0263	0.0576	0.0813
234.0	0.3166	0.0254	0.0451	0.0517
270.0	0.3702	0.0255	0.0526	0.0585
306.0	0.4233	0.0282	0.0615	0.0867
342.0	0.5238	0.0581	0.0903	0.1074

CLAS Physics Database