Measurement E151M1184

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:	0.0318
Q²:	0.0707 GeV²
W:	1835.0 GeV
E_beam:	2.999 GeV
ε:	0.8353

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.75	102.0	-1.006	0.8014	0.0794
0.75	114.0	-0.1874	0.8684	0.033
0.75	186.0	-0.7181	0.8979	0.0605
0.75	198.0	-0.0549	0.9156	0.0303
0.75	210.0	-0.2752	0.8901	0.0361
0.85	102.0	-0.886	0.7292	0.0714
0.85	114.0	0.722	0.841	0.0607
0.85	126.0	1.8315	0.9982	0.1372
0.85	174.0	1.7366	1.1266	0.1304
0.85	186.0	-1.4436	0.6847	0.1097
0.85	198.0	0.8888	0.8899	0.0716
0.85	210.0	-1.9774	0.5382	0.1476

CLAS Physics Database