Measurement E213M883

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:	3.0 — 3.5 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	0.3691	0.0272	0.07	0.075
54.0	0.4139	0.0323	0.0551	0.0639
90.0	0.4499	0.0276	0.0618	0.0676
126.0	0.5721	0.0335	0.0721	0.0795
162.0	0.6733	0.0347	0.0799	0.0871
198.0	0.6117	0.0326	0.076	0.0827
234.0	0.5875	0.0525	0.0749	0.0914
270.0	0.5234	0.0419	0.0675	0.0794
306.0	0.3728	0.0228	0.052	0.0568
342.0	0.3455	0.0224	0.068	0.0716

CLAS Physics Database