Measurement E151M663

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:	0.1394
Q²:	0.1715 GeV²
W:	1595.0 GeV
E_beam:	1.9889 GeV
ε:	0.7773

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty
0.55	114.0	0.3649	0.8507
0.65	114.0	-0.7394	0.7408
0.75	114.0	0.7466	0.8856
0.75	126.0	-1.0088	0.6806
0.75	210.0	1.1555	0.7683
0.75	222.0	-1.1522	0.6401
0.75	246.0	2.9008	2.9008
0.85	90.0	1.158	0.7098
0.85	102.0	-1.4857	0.5799
0.85	234.0	0.8235	0.6842
0.85	246.0	0.2081	0.7773
0.85	258.0	3.3918	3.3918
0.95	222.0	-0.6117	0.6278
0.95	234.0	-0.0805	0.6849
0.95	258.0	-0.9521	0.5563

CLAS Physics Database