Measurement E151M485

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:	1.1186
Q²:	0.348 GeV²
W:	1235.0 GeV
E_beam:	1.9889 GeV
ε:	0.8997

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty
0.25	66.0	1.0483	0.5203
0.45	282.0	1.0698	0.6018
0.65	270.0	-0.1413	0.533
0.65	282.0	-0.3327	0.5038
0.75	102.0	-0.369	0.4719
0.75	258.0	-0.5702	0.4482
0.75	282.0	-0.5829	0.4381
0.85	102.0	0.748	0.5577
0.85	258.0	0.7682	0.5775

CLAS Physics Database