Measurement E151M3093

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_LU
ε_L:	0.2016
Q²:	0.2445 GeV²
W:	1565.0 GeV
E_beam:	1.9889 GeV
ε:	0.77

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LU	uncertainty	syst. uncert.
0.65	102.0	0.002	0.2806	0.03
0.75	234.0	-0.266	0.2732	0.0305
0.85	78.0	0.1508	0.2803	0.0302
0.85	246.0	-0.0525	0.2429	0.03
0.85	258.0	0.0417	0.2726	0.03
0.95	222.0	-0.1655	0.2598	0.0302
0.95	234.0	0.0171	0.2783	0.03

CLAS Physics Database