Measurement E213M866

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:	1.925 — 1.95 GeV
E_beam:	5.754 GeV

Measurement data
ψ(π⁺), [deg]	dσ/dψ(π⁺), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.4341	0.0341	0.0728	0.0804
54.0	0.4027	0.0245	0.0708	0.075
90.0	0.4956	0.0529	0.0809	0.0966
126.0	0.5603	0.0432	0.0867	0.123
162.0	0.6257	0.0384	0.0915	0.13
198.0	0.6472	0.036	0.0935	0.1319
234.0	0.6348	0.0599	0.0923	0.131
270.0	0.5335	0.0467	0.0838	0.096
306.0	0.448	0.0471	0.0752	0.0887
342.0	0.4107	0.0287	0.0704	0.076

CLAS Physics Database