Measurement E151M877

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:	0.129
Q²:	0.1205 GeV²
W:	1565.0 GeV
E_beam:	2.2596 GeV
ε:	0.8673

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.55	114.0	-1.1009	0.485	0.0911
0.65	102.0	-0.547	0.6571	0.0468
0.65	114.0	-0.9352	0.6386	0.0683
0.65	138.0	-0.1097	0.8562	0.0317
0.65	222.0	0.7744	0.7566	0.0775
0.65	234.0	0.8638	0.5589	0.0772
0.75	102.0	-0.2189	0.7851	0.0333
0.75	114.0	-0.125	0.5646	0.0452
0.75	126.0	-0.6311	0.8539	0.0655
0.75	210.0	-1.1698	0.7536	0.0824
0.75	222.0	-0.6714	0.6497	0.0533
0.75	234.0	0.2146	0.5411	0.0347
0.85	90.0	0.3341	0.9369	0.043
0.85	222.0	1.1892	0.7805	0.1138
0.85	234.0	0.4635	0.8025	0.0523
0.85	246.0	-0.6687	0.8057	0.0686
0.95	234.0	-1.9619	2.0925	0.1835
0.95	246.0	2.8995	2.3006	0.2693
0.75	282.0	1.0922	0.7168	0.0777
0.75	294.0	-0.2491	0.6854	0.0342
0.85	90.0	-0.2644	0.8101	0.0347
0.85	198.0	0.0292	0.9765	0.0301
0.85	222.0	0.2379	0.7527	0.0338
0.85	234.0	1.085	0.7963	0.0773
0.85	246.0	1.1295	0.8224	0.08
0.95	246.0	-0.7643	1.1817	0.0584
0.95	258.0	1.0273	1.2973	0.0738

CLAS Physics Database