Measurement E151M931

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:	0.0432
Q²:	0.0707 GeV²
W:	1715.0 GeV
E_beam:	2.2596 GeV
ε:	0.7875

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.75	270.0	0.3213	0.7301	0.0422
0.85	102.0	1.2258	1.0567	0.117
0.85	114.0	-0.1086	0.8597	0.0316
0.65	138.0	-1.3123	0.5112	0.0912
0.65	210.0	0.8317	0.6949	0.0623
0.85	102.0	-1.0777	0.5545	0.0768

CLAS Physics Database