Measurement E151M104

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:	0.0183
Q²:	0.0059 GeV²
W:	1355.0 GeV
E_beam:	1.0539 GeV
ε:	0.8092

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty
0.45	54.0	2.1475	1.0372
0.55	54.0	0.3854	0.8137
0.55	234.0	0.2874	0.8462
0.55	246.0	-0.0211	0.6821
0.65	54.0	1.0098	0.8149
0.65	222.0	-0.0882	0.7284
0.65	234.0	-0.2407	0.6177
0.65	246.0	1.1587	0.693
0.65	258.0	-0.8693	0.6825
0.75	222.0	0.9819	0.815
0.75	234.0	-1.2651	0.6368
0.75	246.0	-0.3041	0.5357
0.85	234.0	0.1846	0.6361
0.85	246.0	-0.1953	0.5888

CLAS Physics Database