Measurement E151M1673

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:	0.0014
Q²:	0.0023 GeV²
W:	1625.0 GeV
E_beam:	1.3383 GeV
ε:	0.5468

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.85	210.0	-1.761	0.958	0.1067
0.45	30.0	0.0636	0.9599	0.0302
0.65	222.0	0.5166	0.8884	0.0431
0.75	222.0	-1.757	0.8781	0.1095

CLAS Physics Database