Measurement E151M919

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:	0.03
Q²:	0.0415 GeV²
W:	1685.0 GeV
E_beam:	2.2596 GeV
ε:	0.8202

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.65	126.0	-1.0739	1.7346	0.1036
0.75	210.0	3.6718	1.8939	0.3402
0.75	258.0	0.9115	1.5451	0.0893
0.75	282.0	0.955	1.5532	0.0931
0.85	114.0	1.6806	2.0961	0.158
0.85	126.0	-1.0941	2.0262	0.1053
0.45	270.0	-0.5529	0.5076	0.0471
0.55	210.0	-0.1794	0.6636	0.0322
0.55	270.0	0.2425	0.5586	0.034
0.65	138.0	-0.8807	0.5864	0.0651
0.75	66.0	-0.6054	0.5065	0.0498
0.75	198.0	0.6894	0.7608	0.0543
0.75	210.0	2.6083	2.6083	0.1738
0.85	126.0	0.5257	0.736	0.0457
0.85	222.0	0.3431	0.7697	0.0375
0.85	270.0	-0.7004	0.5652	0.0549

CLAS Physics Database