Measurement E151M1911

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_LL
ε_L:	0.0602
Q²:	0.0844 GeV²
W:	1655.0 GeV
E_beam:	1.9889 GeV
ε:	0.7643

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.45	282.0	-0.1889	0.6787	0.0321
0.65	114.0	-0.5197	0.712	0.0435
0.65	126.0	-1.3653	0.7505	0.088
0.65	198.0	-0.7534	0.8474	0.0546
0.65	222.0	0.0094	0.7979	0.03
0.65	282.0	-0.4717	0.7955	0.0414
0.65	294.0	1.2599	0.6526	0.082
0.75	66.0	1.2356	0.7036	0.0807
0.75	198.0	-0.559	0.8054	0.0452
0.75	222.0	-0.7707	0.7322	0.0555
0.75	234.0	-0.1152	0.7185	0.0308
0.75	282.0	0.0996	0.5833	0.0306
0.75	294.0	-1.5122	0.636	0.0964
0.85	114.0	-1.235	0.6999	0.0806
0.85	210.0	1.4583	0.669	0.0933
0.85	222.0	0.5651	0.7352	0.0455
0.85	234.0	-0.0465	0.8506	0.0301
0.85	246.0	-0.3931	0.7581	0.0383

CLAS Physics Database