Measurement E213M622

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:	2.4 — 3.0 GeV²
W:	1.975 — 2.0 GeV
E_beam:	5.754 GeV

Measurement data
ψ(π⁻), [deg]	dσ/dψ(π⁻), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.5045	0.0273	0.1045	0.108
54.0	0.5514	0.0286	0.0829	0.0877
90.0	0.6096	0.03	0.0905	0.0954
126.0	0.7426	0.0386	0.1045	0.1114
162.0	0.894	0.0386	0.1152	0.1215
198.0	0.8428	0.0377	0.1119	0.1181
234.0	0.7226	0.0318	0.1033	0.1081
270.0	0.6495	0.0353	0.093	0.0995
306.0	0.5491	0.0301	0.0828	0.0882
342.0	0.545	0.0293	0.1084	0.1123

CLAS Physics Database