Measurement E213M811

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:	1.775 — 1.8 GeV
E_beam:	5.754 GeV

Measurement data
ψ(π⁻), [deg]	dσ/dψ(π⁻), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.4796	0.0407	0.0787	0.0886
54.0	0.4302	0.0551	0.0548	0.0777
90.0	0.4938	0.0301	0.0589	0.0661
126.0	0.6056	0.04	0.0702	0.0808
162.0	0.5542	0.0461	0.0613	0.0767
198.0	0.5006	0.0395	0.0568	0.0692
234.0	0.5991	0.0457	0.0698	0.0834
270.0	0.5396	0.0336	0.0626	0.0711
306.0	0.4877	0.038	0.06	0.071
342.0	0.4738	0.0392	0.0773	0.0867

CLAS Physics Database