Measurement E151M496

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:	0.784
Q²:	0.205 GeV²
W:	1265.0 GeV
E_beam:	1.9889 GeV
ε:	0.9289

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty
0.25	66.0	-0.3754	0.4233
0.35	66.0	0.1357	0.5102
0.35	78.0	1.1652	0.5256
0.45	66.0	0.4354	0.5512
0.45	78.0	0.428	0.5814
0.45	282.0	-0.5962	0.4179
0.55	66.0	-0.4164	0.5444
0.55	270.0	-0.2044	0.4404
0.55	282.0	0.509	0.4848
0.65	258.0	-0.0854	0.4715
0.65	270.0	0.0897	0.4384
0.65	282.0	0.2341	0.3697
0.65	294.0	-0.4793	0.4036
0.75	78.0	0.3282	0.5119
0.75	90.0	-0.0194	0.4462
0.75	102.0	-0.4353	0.5168
0.75	114.0	0.8641	0.644
0.75	258.0	-0.3497	0.3871
0.75	270.0	0.1875	0.4292
0.75	282.0	0.3361	0.4623
0.85	78.0	0.9577	0.4541
0.85	90.0	-0.1059	0.4592
0.85	102.0	0.5317	0.4811
0.85	114.0	-0.3739	0.4162
0.85	126.0	-0.1008	0.446
0.85	234.0	0.5327	0.5933
0.85	246.0	0.1123	0.3961
0.85	258.0	-0.1598	0.4348
0.85	270.0	1.0572	0.4353
0.85	282.0	-0.1085	0.3503
0.85	294.0	0.1157	0.3711
0.95	78.0	-0.6931	0.3908
0.95	90.0	-0.1325	0.3824
0.95	102.0	0.742	0.4794
0.95	114.0	0.0662	0.394
0.95	126.0	0.0445	0.4845
0.95	138.0	0.5654	0.5597
0.95	150.0	-0.487	0.3783
0.95	246.0	-0.4342	0.4428
0.95	270.0	0.4546	0.4802

CLAS Physics Database