Measurement E213M451

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:	2.4 — 3.0 GeV²
W:	1.5 — 1.525 GeV
E_beam:	5.754 GeV

Measurement data
ψ(π⁻), [deg]	dσ/dψ(π⁻), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.4397	0.0347	0.1004	0.1062
54.0	0.5483	0.0357	0.088	0.095
90.0	0.5614	0.0325	0.0838	0.0898
126.0	0.6282	0.0293	0.0905	0.0951
162.0	0.6699	0.0323	0.0944	0.0998
198.0	0.6956	0.0286	0.0979	0.102
234.0	0.5971	0.0376	0.0867	0.0945
270.0	0.5536	0.0291	0.0829	0.0878
306.0	0.4656	0.0293	0.0775	0.0828
342.0	0.476	0.0351	0.1054	0.1111

CLAS Physics Database