Measurement E213M885

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:	1.975 — 2.0 GeV
E_beam:	5.754 GeV

Measurement data
ψ(p), [deg]	dσ/dψ(p), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.4626	0.0354	0.084	0.1198
54.0	0.4723	0.0424	0.0666	0.079
90.0	0.5743	0.0495	0.0727	0.088
126.0	0.5058	0.0472	0.0695	0.0981
162.0	0.5118	0.0304	0.0696	0.099
198.0	0.5365	0.0396	0.071	0.1008
234.0	0.4574	0.0262	0.0665	0.0945
270.0	0.4846	0.0332	0.0659	0.0738
306.0	0.5276	0.0474	0.0717	0.086
342.0	0.4176	0.0315	0.079	0.112

CLAS Physics Database