Measurement E151M9

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:	0.3053
Q²:	0.0348 GeV²
W:	1205.0 GeV
E_beam:	1.0539 GeV
ε:	0.9162

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.45	282.0	-0.0204	0.4466	0.0301
0.55	258.0	-0.1125	0.4003	0.0326
0.55	270.0	0.2269	0.3761	0.0396
0.55	282.0	-0.7785	0.3444	0.0935
0.65	258.0	-0.439	0.3447	0.0583
0.65	270.0	-0.0034	0.2842	0.03
0.75	246.0	-1.036	0.3499	0.1216
0.75	258.0	0.1602	0.4087	0.0351
0.75	270.0	-0.0723	0.3785	0.0311
0.85	138.0	1.0086	0.5441	0.1186
0.85	150.0	0.7962	0.4231	0.0954
0.85	162.0	-0.0223	0.4465	0.0301
0.85	174.0	-0.373	0.3061	0.052
0.85	186.0	0.2089	0.3485	0.0383
0.85	198.0	-0.1159	0.3131	0.0328
0.85	210.0	-0.0053	0.437	0.03
0.85	222.0	-0.2973	0.4061	0.0452
0.95	174.0	0.1896	0.4183	0.0369

CLAS Physics Database