Measurement E151M1170

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:	0.16
Q²:	0.4155 GeV²
W:	1775.0 GeV
E_beam:	2.999 GeV
ε:	0.7887

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.85	198.0	0.207	0.9674	0.0336
0.85	234.0	-0.163	0.8225	0.0323
0.95	198.0	0.14	0.8438	0.0317
0.95	210.0	2.2287	1.0084	0.1656
0.95	222.0	1.3075	0.9475	0.1002
0.95	234.0	1.2399	0.9452	0.0955

CLAS Physics Database