Measurement E151M1199

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:	0.0538
Q²:	0.1435 GeV²
W:	1865.0 GeV
E_beam:	2.999 GeV
ε:	0.8008

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.75	210.0	0.4053	1.035	0.0422
0.85	102.0	1.4606	1.0167	0.1109
0.85	114.0	-0.4284	0.8203	0.0434
0.85	126.0	0.636	1.0309	0.0553
0.85	174.0	0.1288	0.989	0.0314
0.85	198.0	-0.7215	0.7639	0.0607
0.85	210.0	-0.0163	0.8441	0.03
0.85	222.0	-0.8213	0.7891	0.0671

CLAS Physics Database