Measurement E151M3356

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_LU
ε_L:	0.0651
Q²:	0.0844 GeV²
W:	1655.0 GeV
E_beam:	2.2596 GeV
ε:	0.826

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LU	uncertainty	syst. uncert.
0.55	126.0	0.0613	0.2393	0.03
0.65	222.0	0.0782	0.2694	0.03
0.85	102.0	0.287	0.2119	0.0305
0.85	126.0	0.6224	0.2246	0.0325
0.45	270.0	-0.3057	0.2515	0.0306
0.55	270.0	0.0587	0.2565	0.03
0.65	114.0	0.0818	0.2446	0.03
0.65	138.0	0.1093	0.257	0.0301
0.65	222.0	-0.5145	0.2236	0.0317
0.75	126.0	0.306	0.2464	0.0306
0.75	210.0	0.2953	0.2466	0.0306
0.75	282.0	0.0762	0.227	0.03
0.85	114.0	-0.1116	0.242	0.0301
0.85	210.0	0.2953	0.2643	0.0306
0.85	222.0	-0.1961	0.2351	0.0303

CLAS Physics Database