Measurement E151M514

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:	0.8237
Q²:	0.348 GeV²
W:	1295.0 GeV
E_beam:	1.9889 GeV
ε:	0.8806

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.65	294.0	-0.4371	0.4685	0.0402
0.75	90.0	0.3725	0.6251	0.0377
0.75	102.0	0.4945	0.6161	0.0426
0.75	114.0	0.4695	0.6855	0.0415
0.75	258.0	1.0616	0.6864	0.0715
0.75	282.0	-0.2208	0.5531	0.0329
0.85	78.0	0.8663	0.5994	0.0609
0.85	90.0	0.565	0.5981	0.0458
0.85	102.0	-0.293	0.4703	0.0349
0.85	114.0	-0.0239	0.6467	0.03
0.85	270.0	-0.0707	0.4787	0.0303
0.85	282.0	0.0583	0.568	0.0302
0.85	294.0	0.0956	0.4983	0.0306
0.85	306.0	0.2018	0.5917	0.0324
0.95	78.0	1.9432	1.9432	0.1226
0.95	90.0	-1.0491	0.3907	0.0708
0.95	138.0	0.6113	0.5797	0.0479
0.95	270.0	0.1509	0.5504	0.0314
0.95	282.0	0.4336	0.522	0.04

CLAS Physics Database