Measurement E213M848

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:	1.875 — 1.9 GeV
E_beam:	5.754 GeV

Measurement data
ψ(π⁺), [deg]	dσ/dψ(π⁺), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.4346	0.0305	0.0644	0.0713
54.0	0.4999	0.0362	0.0707	0.0795
90.0	0.4885	0.0331	0.0705	0.0779
126.0	0.6539	0.0503	0.0841	0.1191
162.0	0.5901	0.033	0.078	0.1104
198.0	0.5762	0.051	0.0777	0.11
234.0	0.55	0.0397	0.0756	0.1077
270.0	0.4898	0.0334	0.0695	0.0771
306.0	0.4689	0.0341	0.0686	0.0765
342.0	0.4447	0.0308	0.065	0.0719

CLAS Physics Database