Measurement E213M1056

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:	3.5 — 4.2 GeV²
W:	1.725 — 1.75 GeV
E_beam:	5.754 GeV

Measurement data
ψ(p), [deg]	dσ/dψ(p), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.4356	0.0352	0.0677	0.0763
54.0	0.4622	0.0276	0.0538	0.0604
90.0	0.4396	0.0257	0.0488	0.0551
126.0	0.4666	0.0323	0.05	0.0596
162.0	0.5297	0.0392	0.0539	0.0801
198.0	0.5301	0.0345	0.0541	0.0768
234.0	0.4494	0.0458	0.0483	0.0665
270.0	0.4904	0.0359	0.0542	0.065
306.0	0.4876	0.0277	0.0559	0.0624
342.0	0.4611	0.0394	0.0702	0.0805

CLAS Physics Database