Measurement E213M892

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:	2.0 — 2.025 GeV
E_beam:	5.754 GeV

Measurement data
ψ(π⁻), [deg]	dσ/dψ(π⁻), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.3515	0.0353	0.0686	0.0771
54.0	0.3822	0.0273	0.0573	0.0634
90.0	0.487	0.0331	0.0706	0.078
126.0	0.5449	0.0436	0.0764	0.088
162.0	0.6103	0.0325	0.0817	0.0879
198.0	0.6596	0.0379	0.0885	0.0962
234.0	0.5307	0.0357	0.0756	0.0836
270.0	0.4607	0.0408	0.0676	0.079
306.0	0.3699	0.0294	0.0547	0.062
342.0	0.3328	0.0314	0.0672	0.0742

CLAS Physics Database