Measurement E213M669

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:	2.4 — 3.0 GeV²
W:	2.1 — 2.125 GeV
E_beam:	5.754 GeV

Measurement data
ψ(p), [deg]	dσ/dψ(p), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.4089	0.0216	0.0941	0.0966
54.0	0.4401	0.0215	0.08	0.0828
90.0	0.4414	0.0243	0.0756	0.0795
126.0	0.4727	0.0228	0.0825	0.0856
162.0	0.5092	0.026	0.084	0.0879
198.0	0.5033	0.024	0.0845	0.0879
234.0	0.4547	0.0208	0.0804	0.0831
270.0	0.4722	0.0219	0.0797	0.0826
306.0	0.4251	0.0172	0.0779	0.0798
342.0	0.4652	0.0305	0.0988	0.1034

CLAS Physics Database