Measurement E151M1180

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:	0.1154
Q²:	0.2915 GeV²
W:	1805.0 GeV
E_beam:	2.999 GeV
ε:	0.8009

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.75	222.0	-0.7455	0.8427	0.0622
0.85	90.0	2.1601	1.143	0.1607
0.85	210.0	-0.8542	0.786	0.0693
0.95	210.0	0.7868	0.8712	0.0649
0.95	222.0	1.3455	0.9628	0.1028
0.95	234.0	0.015	0.8317	0.03

CLAS Physics Database