Measurement E151M417

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:	0.0992
Q²:	0.1205 GeV²
W:	1535.0 GeV
E_beam:	1.3383 GeV
ε:	0.596

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.85	234.0	0.4636	0.7095	0.0415
0.65	246.0	0.5354	1.2271	0.044
0.75	246.0	-0.6324	0.8143	0.0485

CLAS Physics Database