Measurement E213M1091

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:	1.825 — 1.85 GeV
E_beam:	5.754 GeV

Measurement data
ψ(π⁺), [deg]	dσ/dψ(π⁺), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.222	0.0379	0.0414	0.0561
54.0	0.3098	0.0254	0.0511	0.0571
90.0	0.3046	0.022	0.0519	0.0564
126.0	0.3766	0.0379	0.0588	0.0699
162.0	0.4224	0.0355	0.0624	0.0718
198.0	0.4344	0.0336	0.0639	0.0722
234.0	0.4064	0.0273	0.0617	0.0675
270.0	0.3728	0.0305	0.058	0.0656
306.0	0.318	0.0234	0.0517	0.0567
342.0	0.3011	0.026	0.049	0.0554

CLAS Physics Database