Measurement E151M2222

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_LL
ε_L:	0.8034
Q²:	0.7075 GeV²
W:	1355.0 GeV
E_beam:	2.999 GeV
ε:	0.8919

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.75	102.0	0.0724	0.8539	0.0305
0.75	258.0	0.1404	0.8864	0.0317
0.75	318.0	-0.3268	0.7737	0.0382
0.85	234.0	0.3331	0.7773	0.0385
0.85	258.0	0.412	0.9112	0.0423
0.85	270.0	1.0766	0.7502	0.0836

CLAS Physics Database