Measurement E213M1028

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(π⁺)
Q²:	3.5 — 4.2 GeV²
W:	1.65 — 1.675 GeV
E_beam:	5.754 GeV

Measurement data
ψ(π⁺), [deg]	dσ/dψ(π⁺), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.3055	0.0269	0.0494	0.0562
54.0	0.3249	0.0278	0.0512	0.0582
90.0	0.3568	0.0292	0.0554	0.0626
126.0	0.4659	0.038	0.0661	0.0941
162.0	0.4602	0.0293	0.0656	0.0719
198.0	0.4508	0.0254	0.0643	0.0691
234.0	0.4341	0.0273	0.0632	0.0894
270.0	0.3414	0.0251	0.0537	0.0593
306.0	0.3182	0.0282	0.0505	0.0578
342.0	0.2721	0.021	0.0457	0.0503

CLAS Physics Database