Measurement E151M1146

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:	0.2313
Q²:	0.5925 GeV²
W:	1715.0 GeV
E_beam:	2.999 GeV
ε:	0.7804

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.85	66.0	-0.5511	0.75	0.0502
0.85	186.0	0.0727	0.9134	0.0305
0.85	210.0	-1.0171	0.7171	0.0802
0.85	246.0	1.1017	0.8665	0.0859
0.95	234.0	1.0923	0.886	0.0853
0.95	246.0	-0.4414	0.7	0.0441
0.95	270.0	-0.0888	0.6978	0.0307
0.95	294.0	-0.0456	0.6864	0.0302

CLAS Physics Database