Measurement E151M2341

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:	0.2816
Q²:	0.5925 GeV²
W:	1655.0 GeV
E_beam:	2.999 GeV
ε:	0.8109

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.55	114.0	-0.7402	0.8707	0.0615
0.75	222.0	0.3104	0.9785	0.0375
0.85	66.0	-0.7951	0.9241	0.065
0.85	234.0	-0.0217	0.9515	0.03
0.85	246.0	1.7362	0.7424	0.1294
0.85	258.0	1.0393	0.8181	0.0811
0.85	270.0	2.6277	2.6277	0.1929
0.95	246.0	-0.4479	0.8794	0.0442
0.95	258.0	0.7705	0.8747	0.0634
0.95	270.0	0.7057	0.8519	0.0593
0.95	282.0	-0.2234	0.7894	0.0341

CLAS Physics Database