Measurement E213M822

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(p)
Q²:	3.0 — 3.5 GeV²
W:	1.8 — 1.825 GeV
E_beam:	5.754 GeV

Measurement data
ψ(p), [deg]	dσ/dψ(p), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.5877	0.0712	0.0915	0.1292
54.0	0.4999	0.0462	0.0641	0.0921
90.0	0.5016	0.0333	0.0606	0.0692
126.0	0.539	0.0428	0.0636	0.0767
162.0	0.5593	0.0385	0.0631	0.0739
198.0	0.4838	0.032	0.0556	0.0641
234.0	0.4958	0.044	0.0589	0.0735
270.0	0.5333	0.0437	0.0641	0.0775
306.0	0.5057	0.0374	0.0648	0.0934
342.0	0.4919	0.0385	0.084	0.122

CLAS Physics Database