Measurement E213M190

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:	2.0 — 2.4 GeV²
W:	1.5 — 1.525 GeV
E_beam:	5.754 GeV

Measurement data
ψ(π⁻), [deg]	dσ/dψ(π⁻), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.8543	0.0605	0.1809	0.1908
54.0	0.7974	0.0451	0.1177	0.126
90.0	0.9011	0.055	0.1116	0.1245
126.0	0.9444	0.0422	0.106	0.1141
162.0	1.0151	0.0418	0.1085	0.1163
198.0	0.943	0.0451	0.1021	0.1116
234.0	0.9568	0.0419	0.1075	0.1154
270.0	0.9577	0.0482	0.1159	0.1256
306.0	0.8002	0.0602	0.1195	0.1338
342.0	0.6743	0.0387	0.1703	0.1747

CLAS Physics Database