Measurement E151M1682

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:	0.0229
Q²:	0.0415 GeV²
W:	1625.0 GeV
E_beam:	1.3383 GeV
ε:	0.5072

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.75	246.0	-1.4766	1.0448	0.091
0.85	222.0	0.9342	1.0365	0.0621
0.65	234.0	-1.2332	0.9783	0.0798
0.75	234.0	-1.4281	0.9282	0.0907

CLAS Physics Database