Measurement E213M775

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:	1.675 — 1.7 GeV
E_beam:	5.754 GeV

Measurement data
ψ(π⁻), [deg]	dσ/dψ(π⁻), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.4764	0.0415	0.0898	0.0989
54.0	0.5693	0.0407	0.0775	0.0875
90.0	0.5585	0.04	0.0731	0.0833
126.0	0.6127	0.0335	0.0774	0.0843
162.0	0.5765	0.0333	0.0713	0.0787
198.0	0.6371	0.0449	0.0776	0.0897
234.0	0.5785	0.0347	0.0738	0.0815
270.0	0.5847	0.0356	0.0748	0.0828
306.0	0.568	0.0451	0.0772	0.0894
342.0	0.5025	0.049	0.0922	0.1044

CLAS Physics Database