Measurement E151M1161

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:	0.0463
Q²:	0.0844 GeV²
W:	1775.0 GeV
E_beam:	2.999 GeV
ε:	0.8627

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty
0.55	102.0	-0.3502	0.8993
0.55	114.0	-0.2038	0.8563
0.55	126.0	-0.6152	0.9117
0.55	198.0	0.4735	0.9924
0.55	258.0	0.1857	0.943
0.55	270.0	1.3002	0.9387
0.65	114.0	-0.3374	0.8835
0.65	126.0	-0.1713	0.7333
0.65	138.0	-0.3499	0.9506
0.65	174.0	0.7936	1.0718
0.65	186.0	1.791	1.04
0.65	198.0	-0.6929	0.7926
0.65	210.0	0.9613	0.8915
0.65	270.0	1.0982	1.0412
0.65	282.0	-0.6053	0.6938
0.75	90.0	1.0068	1.0285
0.75	102.0	1.656	1.0195
0.75	114.0	-1.6028	0.6419
0.75	126.0	1.0495	1.0317
0.75	186.0	-0.8094	0.6999
0.75	198.0	-0.2526	0.7118
0.75	210.0	-0.5118	0.8228
0.75	222.0	0.2161	0.7789
0.75	234.0	-0.1163	0.8384
0.75	270.0	-0.1763	0.6513
0.75	282.0	-1.4521	0.5376
0.85	90.0	0.5164	0.9696
0.85	102.0	-0.2939	0.579
0.85	114.0	-1.2009	0.5035
0.85	126.0	1.3772	0.9612
0.85	138.0	-0.9618	0.8104
0.85	174.0	-0.6341	0.7854
0.85	186.0	0.167	0.6518
0.85	198.0	-0.4482	0.667
0.85	210.0	0.535	0.6956
0.85	222.0	0.0336	0.6411
0.85	234.0	-0.9408	0.7151
0.85	270.0	-0.5735	0.6844
0.85	282.0	0.4065	0.9078
0.95	198.0	-0.3099	0.86
0.95	210.0	-0.2323	0.7536

CLAS Physics Database