Measurement E151M764

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:	0.197
Q²:	0.0496 GeV²
W:	1325.0 GeV
E_beam:	2.2596 GeV
ε:	0.9646

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.45	66.0	0.5938	0.5724	0.0492
0.55	78.0	-0.0949	0.5064	0.0306
0.65	78.0	0.0949	0.5301	0.0306
0.65	246.0	-0.719	0.4257	0.0559
0.65	258.0	0.2442	0.5785	0.034
0.75	114.0	-0.8352	0.501	0.0625
0.75	126.0	0.2297	0.6989	0.0336
0.75	138.0	-0.2983	0.5634	0.0358
0.75	234.0	-0.5055	0.5926	0.0447
0.75	246.0	0.4491	0.5559	0.0421
0.75	258.0	0.0695	0.5432	0.0303
0.75	270.0	0.8649	0.5648	0.0642
0.85	114.0	-0.4559	0.6577	0.0424
0.85	126.0	0.7359	0.6208	0.0569
0.85	138.0	1.0177	0.7006	0.0732
0.85	234.0	-0.8612	0.5766	0.064
0.85	246.0	-0.0956	0.5245	0.0306
0.85	258.0	0.194	0.5111	0.0326
0.85	270.0	0.3595	0.5704	0.0382
0.45	78.0	1.8569	1.3549	0.174
0.55	78.0	2.0879	1.4902	0.195
0.65	258.0	-1.9784	1.0847	0.185
0.75	126.0	3.9339	1.5098	0.3643
0.75	138.0	-1.7582	1.4685	0.165
0.75	246.0	-0.473	1.2089	0.053
0.75	258.0	1.0865	1.0891	0.1047
0.85	114.0	1.034	1.7248	0.1
0.85	138.0	-0.6463	1.7201	0.0668
0.85	234.0	3.1613	1.5853	0.2933
0.85	246.0	4.1365	1.2756	0.383
0.85	258.0	0.9358	1.246	0.0914
0.85	270.0	-1.3203	1.2383	0.1255

CLAS Physics Database