Measurement E213M722

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:	3.0 — 3.5 GeV²
W:	1.525 — 1.55 GeV
E_beam:	5.754 GeV

Measurement data
ψ(π⁺), [deg]	dσ/dψ(π⁺), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.2351	0.0272	0.0488	0.0686
54.0	0.2456	0.0189	0.0501	0.0536
90.0	0.2951	0.0211	0.0558	0.0596
126.0	0.3772	0.0267	0.0655	0.0707
162.0	0.4333	0.0374	0.0721	0.0812
198.0	0.3786	0.029	0.0653	0.0715
234.0	0.3688	0.0222	0.0644	0.0682
270.0	0.2837	0.0243	0.0543	0.0595
306.0	0.2582	0.0212	0.0517	0.0559
342.0	0.2344	0.0168	0.0485	0.0688

CLAS Physics Database