Measurement E151M730

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:	0.4112
Q²:	0.0593 GeV²
W:	1235.0 GeV
E_beam:	2.2596 GeV
ε:	0.977

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.75	270.0	2.0064	2.141	0.1876
0.85	150.0	-0.2529	3.0218	0.038
0.65	270.0	-0.7673	0.3222	0.0586
0.85	138.0	0.6547	0.599	0.0524
0.95	162.0	-0.2978	0.8619	0.0358

CLAS Physics Database