Measurement E151M1656

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:	0.0718
Q²:	0.101 GeV²
W:	1565.0 GeV
E_beam:	1.3383 GeV
ε:	0.563

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.75	138.0	-0.2994	1.015	0.035
0.75	234.0	1.7688	0.8992	0.1102
0.75	246.0	-0.0768	0.9255	0.0304
0.95	114.0	0.8303	0.8865	0.0581
0.65	234.0	-1.2094	1.1269	0.0765
0.65	246.0	-1.8273	0.8531	0.1104
0.75	234.0	0.2666	1.1646	0.0338
0.75	246.0	1.147	0.9992	0.0731
0.75	258.0	-0.3605	1.1051	0.0366
0.85	234.0	0.459	1.2614	0.0402
0.85	246.0	-0.0494	1.0411	0.0301

CLAS Physics Database