Measurement E213M723

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:	3.0 — 3.5 GeV²
W:	1.525 — 1.55 GeV
E_beam:	5.754 GeV

Measurement data
ψ(p), [deg]	dσ/dψ(p), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.329	0.0406	0.0609	0.0859
54.0	0.3156	0.0224	0.0494	0.0543
90.0	0.3184	0.0229	0.0466	0.0519
126.0	0.2649	0.018	0.039	0.043
162.0	0.3143	0.0228	0.0445	0.05
198.0	0.322	0.0225	0.0457	0.0509
234.0	0.2999	0.0234	0.0437	0.0496
270.0	0.261	0.0235	0.0399	0.0463
306.0	0.3078	0.0231	0.048	0.0533
342.0	0.333	0.0252	0.0615	0.0868

CLAS Physics Database