Measurement E151M816

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:	0.0878
Q²:	0.0415 GeV²
W:	1445.0 GeV
E_beam:	2.2596 GeV
ε:	0.9368

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.75	234.0	-0.6905	0.847	0.0704
0.85	246.0	-1.8539	0.9166	0.1737
0.65	234.0	1.1497	0.8124	0.0812
0.65	246.0	-0.2208	0.7537	0.0333
0.75	114.0	-0.0765	0.7884	0.0304
0.75	126.0	-1.3886	0.5976	0.0959
0.75	138.0	0.0812	0.8075	0.0305
0.75	222.0	0.1271	0.8572	0.0311
0.75	234.0	-0.4125	0.6732	0.0404
0.75	246.0	0.2997	0.8399	0.0359
0.85	234.0	0.6094	0.8742	0.05

CLAS Physics Database