Measurement E151M1144

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:	0.1958
Q²:	0.4155 GeV²
W:	1715.0 GeV
E_beam:	2.999 GeV
ε:	0.8206

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty
0.55	102.0	1.2058	1.0154
0.75	210.0	1.0804	0.9929
0.75	234.0	0.1527	0.8393
0.85	66.0	0.1275	0.8438
0.85	90.0	-0.3632	0.7518
0.85	198.0	0.1936	0.8495
0.85	210.0	0.5598	0.9574
0.85	222.0	-0.6378	0.6924
0.85	234.0	0.1196	0.6655
0.85	246.0	1.0576	0.7538
0.85	258.0	-0.5106	0.8138
0.85	270.0	-0.1679	0.8218
0.95	210.0	0.3353	0.8359
0.95	222.0	1.4231	0.7847
0.95	234.0	0.7901	0.6889
0.95	246.0	1.6354	0.7951
0.95	258.0	0.5309	0.6592
0.95	270.0	-1.4227	0.5024
0.95	282.0	0.6818	0.7087

CLAS Physics Database