Measurement E151M2410

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:	0.0598
Q²:	0.1435 GeV²
W:	1835.0 GeV
E_beam:	2.999 GeV
ε:	0.8185

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.75	270.0	-1.0632	1.0558	0.0827
0.85	102.0	-0.1398	0.8968	0.0317
0.85	114.0	-0.4299	0.8724	0.0433
0.85	126.0	1.3595	1.0905	0.103
0.85	174.0	-1.3785	0.9351	0.1044
0.85	186.0	-2.586	0.7791	0.1899
0.85	198.0	2.4612	0.7898	0.181
0.85	210.0	1.3285	0.9372	0.1009
0.85	222.0	0.1554	1.0702	0.032
0.85	234.0	0.888	1.06	0.071

CLAS Physics Database