Measurement E213M983

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:	1.525 — 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	0.1374	0.0148	0.0367	0.052
54.0	0.1871	0.0144	0.0445	0.0468
90.0	0.2282	0.021	0.051	0.0552
126.0	0.2706	0.0191	0.0569	0.0799
162.0	0.3188	0.0201	0.0644	0.0909
198.0	0.3264	0.0212	0.0653	0.0923
234.0	0.327	0.0282	0.0657	0.0926
270.0	0.198	0.0313	0.0463	0.0559
306.0	0.2004	0.0182	0.0466	0.05
342.0	0.1663	0.0148	0.0412	0.0587

CLAS Physics Database