Measurement E151M3158

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:	0.0333
Q²:	0.0593 GeV²
W:	1715.0 GeV
E_beam:	1.9889 GeV
ε:	0.7172

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LU	uncertainty	syst. uncert.
0.75	210.0	0.3405	0.2526	0.0308
0.75	222.0	0.2855	0.2629	0.0305
0.75	270.0	0.2178	0.2547	0.0303
0.85	198.0	-0.5806	0.2041	0.0322
0.85	210.0	0.0071	0.2742	0.03
0.85	222.0	-0.1095	0.253	0.0301

CLAS Physics Database