Measurement E151M922

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:	0.049
Q²:	0.0707 GeV²
W:	1685.0 GeV
E_beam:	2.2596 GeV
ε:	0.81

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty
0.45	270.0	0.7074	0.5998
0.65	78.0	0.4505	0.5934
0.65	126.0	-0.7793	0.4921
0.65	210.0	0.5404	0.6975
0.75	210.0	0.6777	0.6674
0.75	234.0	1.3794	0.6661
0.75	270.0	0.9267	0.5994
0.75	282.0	-0.1001	0.5496
0.85	102.0	-0.6517	0.5803
0.85	114.0	-0.3308	0.5663
0.85	126.0	-0.3405	0.6688
0.85	210.0	-0.4915	0.6752
0.85	222.0	-0.083	0.6312
0.45	282.0	-0.9339	1.2882
0.65	126.0	0.1554	1.7187
0.65	198.0	0.7819	1.8013
0.75	210.0	-3.0046	1.41
0.75	234.0	-0.4239	1.6047
0.75	270.0	1.3681	1.6973
0.75	282.0	1.4022	1.2975
0.75	294.0	-0.1779	1.5794
0.85	102.0	-0.0482	1.9857
0.85	114.0	3.7983	1.8663
0.85	210.0	1.0311	2.0773

CLAS Physics Database