Measurement E151M3154

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_LU
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_LU	uncertainty	syst. uncert.
0.55	258.0	-0.0061	0.272	0.03
0.65	198.0	0.1477	0.2736	0.0301
0.75	258.0	0.5417	0.2501	0.0319
0.75	270.0	0.0902	0.2549	0.0301
0.75	282.0	-0.2676	0.23	0.0305
0.85	138.0	0.0687	0.2653	0.03
0.85	210.0	-0.0722	0.2649	0.03

CLAS Physics Database