Measurement E151M1119

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:	0.2816
Q²:	0.5925 GeV²
W:	1655.0 GeV
E_beam:	2.999 GeV
ε:	0.8109

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty
0.55	114.0	-0.5568	0.7333
0.75	222.0	0.5893	0.9008
0.85	66.0	-0.2632	0.7707
0.85	234.0	0.5887	0.8769
0.85	246.0	-0.1497	0.7625
0.85	258.0	0.4908	0.7596
0.85	270.0	0.1281	0.7947
0.95	246.0	0.9937	0.8411
0.95	258.0	1.2964	0.8734
0.95	270.0	0.1022	0.7355
0.95	282.0	0.5968	0.7244

CLAS Physics Database