Measurement E151M1134

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:	0.0489
Q²:	0.0707 GeV²
W:	1715.0 GeV
E_beam:	2.999 GeV
ε:	0.8911

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.75	210.0	-0.48	0.7911	0.0462
0.85	102.0	-0.3531	0.7314	0.0396
0.85	114.0	-1.0997	0.6011	0.0858
0.85	126.0	-0.5251	0.7629	0.0487
0.85	186.0	0.0665	0.8805	0.0304
0.85	222.0	1.1512	0.8933	0.0893

CLAS Physics Database