Measurement E151M2091

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:	0.2732
Q²:	0.2915 GeV²
W:	1535.0 GeV
E_beam:	2.2596 GeV
ε:	0.8314

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.95	234.0	3.7799	3.107	0.3487
0.85	114.0	-0.0905	0.8367	0.0306

CLAS Physics Database