Measurement E213M1290

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:	4.2 — 5.0 GeV²
W:	1.65 — 1.675 GeV
E_beam:	5.754 GeV

Measurement data
ψ(p), [deg]	dσ/dψ(p), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.2218	0.0338	0.0565	0.0659
54.0	0.1971	0.0196	0.044	0.0482
90.0	0.1682	0.0168	0.0383	0.0545
126.0	0.1907	0.0192	0.0415	0.0457
162.0	0.2233	0.019	0.0465	0.0661
198.0	0.2312	0.0223	0.0478	0.0679
234.0	0.1934	0.0218	0.0423	0.0475
270.0	0.1987	0.0204	0.0436	0.0616
306.0	0.2147	0.0195	0.0466	0.0505
342.0	0.2122	0.0244	0.0545	0.0597

CLAS Physics Database