Measurement E151M2293

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:	0.1019
Q²:	0.0844 GeV²
W:	1565.0 GeV
E_beam:	2.999 GeV
ε:	0.9364

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.75	114.0	-0.4204	0.9709	0.0428
0.75	126.0	-0.3065	1.0321	0.0373
0.85	222.0	-0.1909	1.076	0.033
0.85	234.0	-1.3736	0.8221	0.104

CLAS Physics Database