Measurement E151M1105

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:	0.2659
Q²:	0.4155 GeV²
W:	1625.0 GeV
E_beam:	2.999 GeV
ε:	0.8602

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.55	102.0	0.4155	0.9925	0.0427
0.55	114.0	0.8564	1.0563	0.0694
0.55	294.0	-0.1954	0.768	0.0332
0.65	102.0	0.9126	0.8383	0.0731
0.65	114.0	-0.0847	0.8924	0.0306
0.65	222.0	1.1765	0.9284	0.0911
0.65	306.0	-1.455	0.5717	0.1105
0.75	54.0	-1.2661	0.6555	0.0973
0.75	66.0	-0.469	0.7553	0.0455
0.75	78.0	-1.2221	0.6434	0.0942
0.75	102.0	-0.5572	0.6521	0.0506
0.75	114.0	-0.2646	0.8195	0.0357
0.75	222.0	-0.2884	0.7098	0.0367
0.75	234.0	-1.2076	0.6496	0.0932
0.75	246.0	-0.8974	0.6465	0.0721
0.75	258.0	0.6753	0.9319	0.0578
0.85	54.0	1.565	0.8872	0.1183
0.85	66.0	0.1503	0.6924	0.0319
0.85	78.0	-0.6209	0.7254	0.0544
0.85	186.0	0.1945	0.9291	0.0332
0.85	198.0	2.5008	0.9875	0.1852
0.85	210.0	0.596	0.8426	0.0529
0.85	222.0	2.1991	0.7385	0.1635
0.85	234.0	-0.5287	0.6738	0.0489
0.85	246.0	0.3997	0.606	0.0419
0.85	258.0	0.1869	0.7159	0.033
0.85	270.0	-0.8613	0.6262	0.0697
0.95	186.0	0.4453	0.8588	0.0443
0.95	210.0	0.7498	0.885	0.0625
0.95	222.0	0.2058	0.8442	0.0336
0.95	234.0	0.8851	0.7946	0.0713
0.95	246.0	-0.5536	0.5515	0.0504
0.95	258.0	-0.4081	0.5992	0.0423
0.95	270.0	-0.0399	0.5891	0.0301
0.95	282.0	0.4404	0.5945	0.044
0.95	294.0	0.8263	0.6245	0.0674
0.95	306.0	-0.8547	0.4833	0.0693
0.95	318.0	0.0414	0.6845	0.0302

CLAS Physics Database