Measurement E213M1387

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:	4.2 — 5.0 GeV²
W:	1.925 — 1.95 GeV
E_beam:	5.754 GeV

Measurement data
ψ(π⁻), [deg]	dσ/dψ(π⁻), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.1875	0.0244	0.0498	0.0555
54.0	0.1974	0.0167	0.0408	0.0441
90.0	0.2059	0.0204	0.046	0.0503
126.0	0.2882	0.0222	0.0592	0.0632
162.0	0.3078	0.0219	0.0586	0.0626
198.0	0.3266	0.0298	0.0607	0.0676
234.0	0.2835	0.0285	0.0583	0.0648
270.0	0.2239	0.0195	0.0468	0.0507
306.0	0.2205	0.026	0.0425	0.0498
342.0	0.1661	0.0207	0.0472	0.0516

CLAS Physics Database