Measurement E151M195

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:	0.061
Q²:	0.0593 GeV²
W:	1475.0 GeV
E_beam:	1.0539 GeV
ε:	0.5361

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.35	54.0	-0.2412	0.7103	0.0407
0.55	246.0	1.3044	0.7715	0.1514
0.65	234.0	-0.6251	0.6732	0.0772
0.65	246.0	-0.6679	0.4617	0.0817
0.65	258.0	-0.6181	0.5192	0.0765
0.75	246.0	0.672	0.7236	0.0821
0.75	258.0	0.0576	0.5945	0.0307
0.85	246.0	-0.4446	0.6404	0.0588
0.85	258.0	0.3694	0.575	0.0516
0.85	270.0	1.0228	0.7484	0.1202

CLAS Physics Database