Measurement E151M1679

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:	0.0142
Q²:	0.0245 GeV²
W:	1625.0 GeV
E_beam:	1.3383 GeV
ε:	0.5245

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.75	222.0	0.1559	0.8839	0.0314
0.75	246.0	-1.5096	0.9693	0.0953
0.65	234.0	0.4078	1.1095	0.0382
0.75	234.0	0.7036	1.1575	0.0507
0.85	222.0	0.5892	1.0952	0.0455

CLAS Physics Database