Measurement E151M1147

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:	0.0438
Q²:	0.0707 GeV²
W:	1745.0 GeV
E_beam:	2.999 GeV
ε:	0.8789

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.65	210.0	0.8516	0.984	0.0691
0.75	198.0	-0.884	0.8071	0.0712
0.75	210.0	1.3031	0.8977	0.0999
0.75	222.0	0.3192	0.9114	0.038
0.75	282.0	0.0117	0.8797	0.03
0.85	90.0	-1.1392	0.6837	0.0885
0.85	102.0	0.3915	0.9554	0.0415
0.85	114.0	1.3361	0.9029	0.1022
0.85	126.0	0.8463	1.018	0.0687
0.85	186.0	1.6151	1.0173	0.1218
0.85	210.0	-1.7218	0.5547	0.1294
0.85	222.0	-0.4761	0.8482	0.0459
0.85	234.0	0.7991	0.9129	0.0657

CLAS Physics Database