Measurement E151M1082

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:	0.3792
Q²:	0.5925 GeV²
W:	1565.0 GeV
E_beam:	2.999 GeV
ε:	0.8489

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.55	90.0	-0.8974	0.7431	0.0721
0.65	102.0	-0.5075	0.7581	0.0477
0.75	54.0	-0.0842	0.8159	0.0306
0.75	102.0	0.4108	0.9739	0.0424
0.75	270.0	1.4363	0.9919	0.1092
0.85	102.0	-0.1537	0.8515	0.032
0.85	210.0	0.4842	0.9629	0.0464
0.85	234.0	0.3596	0.818	0.0399
0.85	270.0	-0.3247	0.7304	0.0383
0.95	294.0	-0.536	0.6434	0.0493
0.95	306.0	1.1149	0.6582	0.0868
0.95	318.0	-0.6	0.6577	0.0531

CLAS Physics Database