Measurement E151M945

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:	1.4338
Q²:	0.4155 GeV²
W:	1205.0 GeV
E_beam:	2.999 GeV
ε:	0.9548

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.35	282.0	-0.0012	0.6564	0.03
0.45	282.0	1.2723	0.6575	0.0977
0.45	294.0	-0.1836	0.607	0.0329
0.55	282.0	0.1296	0.6131	0.0315
0.75	66.0	-0.4172	0.5051	0.0428
0.75	78.0	-0.2282	0.5573	0.0343
0.75	270.0	0.2027	0.6516	0.0335
0.75	282.0	2.2755	2.2755	0.169
0.85	66.0	0.6969	0.683	0.0591
0.85	90.0	-0.8655	0.5156	0.07

CLAS Physics Database