Measurement E151M665

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:	0.1763
Q²:	0.2445 GeV²
W:	1595.0 GeV
E_beam:	1.9889 GeV
ε:	0.7455

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty
0.65	114.0	-1.0053	0.6795
0.75	126.0	-0.5661	0.7225
0.75	210.0	0.578	0.8031
0.85	90.0	0.3582	0.7673
0.85	234.0	0.3559	0.7326
0.85	258.0	0.3016	0.7508
0.95	222.0	0.1591	0.7328

CLAS Physics Database