Measurement E151M179

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:	0.1008
Q²:	0.0844 GeV²
W:	1445.0 GeV
E_beam:	1.0539 GeV
ε:	0.5659

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.35	42.0	-0.3758	0.7627	0.0522
0.55	258.0	0.4375	0.6815	0.0581
0.65	234.0	-0.8029	0.6858	0.0962
0.65	258.0	-0.311	0.6257	0.0464
0.75	246.0	-0.7655	0.6157	0.0921
0.75	258.0	1.094	0.7071	0.128
0.85	234.0	0.8031	0.7716	0.0962
0.85	258.0	1.7737	0.6992	0.204

CLAS Physics Database