Measurement E213M884

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	0.3783	0.0219	0.0668	0.0702
54.0	0.4645	0.0445	0.076	0.0881
90.0	0.4658	0.0341	0.0791	0.0861
126.0	0.5525	0.0332	0.0857	0.1208
162.0	0.6471	0.0421	0.0912	0.1289
198.0	0.6116	0.0355	0.089	0.1262
234.0	0.6736	0.0463	0.0958	0.1351
270.0	0.452	0.026	0.0785	0.0827
306.0	0.4207	0.0318	0.0729	0.0795
342.0	0.4039	0.033	0.0683	0.0758

CLAS Physics Database