Measurement E151M890

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:	0.1306
Q²:	0.1435 GeV²
W:	1595.0 GeV
E_beam:	2.2596 GeV
ε:	0.8439

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.85	234.0	0.5774	0.7254	0.0612
0.85	246.0	0.7648	0.7828	0.0767
0.95	234.0	7.0545	7.0545	0.6518
0.95	258.0	-0.8441	2.0092	0.0835
0.65	126.0	-0.7011	0.7519	0.0549
0.75	126.0	-1.1746	0.7077	0.0827
0.85	90.0	-1.8383	0.5105	0.1243
0.85	222.0	0.4659	0.9042	0.0428
0.85	234.0	-0.123	0.7744	0.0311
0.85	246.0	0.2002	0.8158	0.0328
0.95	258.0	1.3892	1.3724	0.096

CLAS Physics Database