Measurement E151M957

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:	1.2681
Q²:	0.5925 GeV²
W:	1235.0 GeV
E_beam:	2.999 GeV
ε:	0.9304

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.35	294.0	0.1169	0.6758	0.0312
0.45	282.0	0.692	0.7576	0.0588
0.55	78.0	0.6028	0.7437	0.0533
0.55	270.0	-0.5177	0.5924	0.0483
0.65	66.0	-0.0376	0.6891	0.0301
0.65	78.0	0.124	0.7089	0.0313
0.65	90.0	-0.4971	0.5799	0.0471
0.65	282.0	2.2402	2.2402	0.1665
0.75	90.0	-0.3519	0.5355	0.0395
0.75	270.0	1.3264	0.7453	0.1015
0.75	282.0	-0.0693	0.562	0.0304
0.85	66.0	-0.6391	0.4926	0.0555
0.85	90.0	-0.2417	0.6159	0.0348

CLAS Physics Database