Measurement E151M854

Experiment:	EG4
Year:	2016	Experiment comment: Final asymmetry results for the ep-> e pi+ (n) channel extracted from CLAS/EG4 data obtained using a longitudinally polarized beam and a longitudinally polarized NH3 target (CAA HS07-02).
Spokesperson:	Xiaochao Zheng
Reaction:	ep → π⁺n
Polarization:	beam (longitudinal), target (longitudinal)
Quantity:	A_UL
ε_L:	0.2792
Q²:	0.2445 GeV²
W:	1505.0 GeV
E_beam:	2.2596 GeV
ε:	0.8607

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.65	102.0	-1.0682	0.4268	0.0762
0.75	102.0	-0.2626	0.5835	0.0346
0.75	234.0	0.355	0.647	0.038
0.85	78.0	0.6669	0.6693	0.0531
0.85	234.0	2.0906	0.7653	0.1404
0.85	270.0	-0.4356	0.605	0.0414
0.65	126.0	0.7629	1.7003	0.0765
0.75	102.0	-0.7783	1.5424	0.0778
0.75	222.0	0.2099	1.5102	0.0357
0.75	234.0	-2.0582	1.1407	0.1923
0.85	234.0	2.5116	1.8182	0.2337
0.85	258.0	0.1537	1.5425	0.0332

CLAS Physics Database