Measurement E151M1196

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:	0.0337
Q²:	0.0844 GeV²
W:	1865.0 GeV
E_beam:	2.999 GeV
ε:	0.815

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty
0.65	282.0	-0.7291	0.7556
0.75	114.0	0.7865	1.0318
0.75	186.0	0.7164	1.049
0.75	270.0	-0.0145	0.8653
0.85	102.0	0.7164	0.8802
0.85	114.0	0.486	0.7911
0.85	126.0	-0.4134	0.7229
0.85	138.0	-0.563	0.8999
0.85	186.0	0.5598	0.7376
0.85	198.0	-0.3033	0.697
0.85	210.0	0.5199	0.7317
0.85	222.0	-0.5132	0.7425

CLAS Physics Database