Measurement E151M289

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:	0.5454
Q²:	0.2915 GeV²
W:	1325.0 GeV
E_beam:	1.3383 GeV
ε:	0.7233

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.85	282.0	-0.1589	0.8554	0.0315
0.65	270.0	1.0796	0.6357	0.0733
0.85	102.0	0.1865	0.6447	0.0321
0.85	270.0	0.0918	0.6367	0.0305
0.85	294.0	0.7774	0.6256	0.0567

CLAS Physics Database