Measurement E151M648

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:	0.1805
Q²:	0.205 GeV²
W:	1565.0 GeV
E_beam:	1.9889 GeV
ε:	0.7866

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.65	114.0	-0.7746	0.6971	0.0561
0.65	126.0	-1.5066	0.6282	0.0969
0.65	222.0	1.2022	0.8543	0.0794
0.65	294.0	1.0132	0.7764	0.0689
0.75	102.0	-0.6493	0.7333	0.0498
0.75	126.0	0.8283	0.7826	0.0589
0.75	222.0	-0.2878	0.6587	0.0348
0.75	246.0	0.432	0.7321	0.04
0.85	222.0	-0.2437	0.5895	0.0335
0.85	234.0	1.1548	0.6252	0.0767
0.85	246.0	1.4934	0.7289	0.0961
0.85	258.0	0.2505	0.6431	0.0337
0.85	270.0	-0.1437	0.7481	0.0313
0.95	210.0	0.9386	0.7004	0.0648
0.95	246.0	0.8901	0.6351	0.0622
0.95	270.0	0.0077	0.599	0.03

CLAS Physics Database