Measurement E151M2418

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_LL
ε_L:	0.0337
Q²:	0.0844 GeV²
W:	1865.0 GeV
E_beam:	2.999 GeV
ε:	0.815

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.65	282.0	-0.1289	0.9705
0.75	114.0	-1.8385	1.0357
0.75	186.0	-0.7634	1.0838
0.75	270.0	-0.6261	0.9844
0.85	102.0	-1.6007	0.898
0.85	114.0	0.2758	0.8816
0.85	126.0	0.9627	0.8423
0.85	138.0	-1.3634	1.0598
0.85	186.0	0.1103	0.8067
0.85	198.0	-1.1072	0.7923
0.85	210.0	0.2107	0.8098
0.85	222.0	-0.5292	0.9198

CLAS Physics Database