Measurement E213M667

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:	2.1 — 2.125 GeV
E_beam:	5.754 GeV

Measurement data
ψ(π⁻), [deg]	dσ/dψ(π⁻), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.3096	0.0169	0.0721	0.074
54.0	0.3412	0.0166	0.0585	0.0608
90.0	0.4202	0.0187	0.0683	0.0708
126.0	0.5458	0.0255	0.0796	0.0836
162.0	0.7103	0.0319	0.0938	0.0991
198.0	0.6845	0.0339	0.0925	0.0985
234.0	0.496	0.0225	0.0746	0.0779
270.0	0.4304	0.0191	0.069	0.0716
306.0	0.335	0.0173	0.0582	0.0607
342.0	0.301	0.0173	0.0724	0.0744

CLAS Physics Database