Measurement E213M749

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:	1.6 — 1.625 GeV
E_beam:	5.754 GeV

Measurement data
ψ(π⁺), [deg]	dσ/dψ(π⁺), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.2508	0.0197	0.0484	0.0694
54.0	0.2826	0.0282	0.0517	0.0589
90.0	0.3505	0.0261	0.0591	0.0646
126.0	0.4296	0.0317	0.0677	0.0748
162.0	0.5269	0.0307	0.0782	0.0841
198.0	0.504	0.0327	0.0752	0.082
234.0	0.4262	0.0361	0.0672	0.0763
270.0	0.332	0.0239	0.0568	0.0617
306.0	0.2939	0.0233	0.0526	0.0575
342.0	0.2562	0.0206	0.0484	0.0686

CLAS Physics Database