Measurement E151M1692

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:	1.0391
Q²:	0.1715 GeV²
W:	1205.0 GeV
E_beam:	1.9889 GeV
ε:	0.9501

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.65	282.0	-0.6949	0.5205	0.0517
0.75	270.0	0.4436	0.5681	0.0403
0.95	114.0	-0.6716	0.5074	0.0506
0.95	126.0	0.1967	0.484	0.0323
0.95	138.0	0.0858	0.5801	0.0304

CLAS Physics Database