Measurement E151M710

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_UL
ε_L:	0.0172
Q²:	0.0291 GeV²
W:	1715.0 GeV
E_beam:	1.9889 GeV
ε:	0.732

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.55	258.0	0.0109	0.7122	0.03
0.65	198.0	0.3426	0.7545	0.0366
0.75	258.0	0.5664	0.7563	0.0458
0.75	270.0	0.2317	0.6734	0.0332
0.75	282.0	-0.0358	0.6147	0.0301
0.85	138.0	0.3974	0.7426	0.0386
0.85	210.0	-0.5848	0.6198	0.0467

CLAS Physics Database