Measurement E151M2150

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:	0.0264
Q²:	0.0415 GeV²
W:	1715.0 GeV
E_beam:	2.2596 GeV
ε:	0.7982

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.75	210.0	-0.148	0.8418	0.0315
0.75	270.0	0.1637	0.689	0.0318
0.75	282.0	-0.4252	0.6349	0.0408
0.85	114.0	-0.946	0.7102	0.0685
0.85	210.0	0.0995	0.8183	0.0307
0.45	270.0	-0.5871	0.7477	0.0617
0.85	114.0	1.0098	1.1117	0.0975
0.85	126.0	-0.453	1.047	0.0513
0.85	210.0	-0.8362	1.081	0.0825

CLAS Physics Database