Measurement E151M723

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:	0.0208
Q²:	0.0415 GeV²
W:	1745.0 GeV
E_beam:	1.9889 GeV
ε:	0.6931

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.75	78.0	1.2518	0.8133	0.0822
0.75	210.0	0.6682	0.7447	0.0507
0.75	258.0	-0.6345	0.6854	0.0491
0.75	270.0	-1.1283	0.5715	0.0752
0.75	282.0	0.8553	0.7485	0.0603

CLAS Physics Database