Measurement E151M1263

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:	0.0425
Q²:	0.0071 GeV²
W:	1265.0 GeV
E_beam:	1.0539 GeV
ε:	0.8992

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.55	246.0	0.0264	0.6045	0.0301
0.65	234.0	0.0402	0.6765	0.0303
0.65	246.0	0.1579	0.533	0.0349
0.65	258.0	-0.1933	0.5482	0.0371
0.65	270.0	1.0615	0.6339	0.1234
0.75	246.0	-0.4289	0.5047	0.0569
0.75	258.0	0.5682	0.5639	0.0708
0.85	246.0	-0.3343	0.6644	0.0482

CLAS Physics Database