Measurement E151M182

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:	0.0075
Q²:	0.0059 GeV²
W:	1475.0 GeV
E_beam:	1.0539 GeV
ε:	0.6087

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.35	42.0	-0.3941	0.6545	0.0539
0.35	54.0	-0.9264	0.5971	0.1096
0.45	42.0	-0.0467	0.6733	0.0305
0.45	54.0	-0.2684	0.6092	0.0428
0.45	246.0	1.7425	0.7429	0.2005
0.55	210.0	0.7377	0.7646	0.0891
0.55	234.0	-0.9418	0.6397	0.1113
0.65	222.0	1.1143	0.6789	0.1303
0.65	234.0	-0.1041	0.6818	0.0323
0.65	246.0	-0.832	0.524	0.0993
0.75	222.0	-0.5381	0.6077	0.0682
0.75	234.0	0.7836	0.5864	0.0941
0.75	246.0	0.2901	0.626	0.0446
0.85	222.0	0.9003	0.7039	0.1067
0.85	234.0	1.0669	0.6615	0.125

CLAS Physics Database