Measurement E213M550

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:	1.775 — 1.8 GeV
E_beam:	5.754 GeV

Measurement data
ψ(π⁻), [deg]	dσ/dψ(π⁻), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.6881	0.0351	0.1246	0.1294
54.0	0.7277	0.034	0.0971	0.1028
90.0	0.7325	0.0426	0.0923	0.1017
126.0	0.8099	0.044	0.0997	0.109
162.0	0.873	0.0377	0.1	0.1069
198.0	0.9168	0.0568	0.1059	0.1201
234.0	0.8357	0.0412	0.1029	0.1109
270.0	0.7318	0.0387	0.091	0.0989
306.0	0.7073	0.0429	0.0964	0.1055
342.0	0.6494	0.0331	0.1203	0.1248

CLAS Physics Database