Measurement E151M923

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:	0.0574
Q²:	0.0844 GeV²
W:	1685.0 GeV
E_beam:	2.2596 GeV
ε:	0.8052

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.65	138.0	-1.8265	1.6989	0.1712
0.75	222.0	1.8996	1.9395	0.1779
0.75	282.0	-0.6144	1.5081	0.0642
0.85	114.0	0.6708	2.2931	0.0688
0.85	210.0	3.781	1.8826	0.3502
0.65	282.0	0.0944	0.5738	0.0306
0.75	270.0	0.1495	0.5912	0.0316
0.75	282.0	-0.2954	0.543	0.0357
0.85	114.0	0.6312	0.7342	0.0511
0.85	234.0	1.3992	0.7229	0.0966

CLAS Physics Database