Measurement E151M1904

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_LL
ε_L:	0.0192
Q²:	0.0245 GeV²
W:	1655.0 GeV
E_beam:	1.9889 GeV
ε:	0.7912

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.65	210.0	-1.7225	0.6798	0.1086
0.75	66.0	-1.0999	0.7609	0.0731
0.75	270.0	0.1678	0.6317	0.0317
0.85	126.0	1.248	0.7593	0.0814
0.85	210.0	-0.6165	0.7958	0.0479

CLAS Physics Database