Measurement E151M912

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:	0.0651
Q²:	0.0844 GeV²
W:	1655.0 GeV
E_beam:	2.2596 GeV
ε:	0.826

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty
0.55	126.0	-0.3852	0.9402
0.65	222.0	0.8644	1.0686
0.85	102.0	-0.8741	0.9688
0.85	126.0	-0.6798	1.2213
0.45	270.0	-0.2097	0.636
0.55	270.0	1.0625	0.6903
0.65	114.0	-0.4352	0.6258
0.65	138.0	0.0435	0.7419
0.65	222.0	0.5582	0.7596
0.75	126.0	-0.6847	0.6823
0.75	210.0	1.3793	0.8038
0.75	282.0	-1.0999	0.4615
0.85	114.0	-1.4763	0.5601
0.85	210.0	0.7125	0.8984
0.85	222.0	1.5632	0.8142

CLAS Physics Database