Measurement E151M1046

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:	0.5335
Q²:	0.7075 GeV²
W:	1475.0 GeV
E_beam:	2.999 GeV
ε:	0.8588

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.55	90.0	-0.0274	0.7892	0.0301
0.65	114.0	-1.4334	0.5554	0.109
0.65	234.0	0.2545	0.8749	0.0353
0.75	102.0	1.0177	0.9348	0.0802
0.75	258.0	1.1936	0.8565	0.0923
0.75	282.0	1.5366	0.8751	0.1162
0.85	246.0	0.5799	0.774	0.0519
0.85	294.0	-0.9763	0.4882	0.0774
0.85	306.0	0.0091	0.7088	0.03
0.95	282.0	-0.4241	0.6236	0.0431

CLAS Physics Database