Measurement E151M461

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:	0.0266
Q²:	0.0496 GeV²
W:	1625.0 GeV
E_beam:	1.3383 GeV
ε:	0.499

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.55	222.0	0.6258	0.7477	0.049
0.65	222.0	0.5383	0.6984	0.0448
0.55	234.0	0.8463	1.2512	0.0591
0.75	222.0	-1.4409	0.5684	0.0918
0.75	234.0	0.7167	1.2342	0.0526
0.85	222.0	0.7427	1.2135	0.0539

CLAS Physics Database