Measurement E151M2162

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:	1.071
Q²:	0.1715 GeV²
W:	1205.0 GeV
E_beam:	2.999 GeV
ε:	0.9793

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.55	282.0	-0.1773	0.6425	0.0326
0.65	270.0	0.7317	0.6533	0.0609
0.65	282.0	-0.8331	0.5039	0.0674
0.65	294.0	1.2424	0.6528	0.095
0.75	270.0	-0.6154	0.5967	0.0538
0.75	282.0	-0.2841	0.5393	0.0364
0.85	66.0	-0.3868	0.7542	0.0411
0.85	78.0	0.0842	0.545	0.0306
0.85	90.0	0.6762	0.584	0.0575
0.85	102.0	-0.5446	0.5711	0.0496
0.85	114.0	-0.463	0.7075	0.045
0.85	270.0	-0.7759	0.6375	0.0638
0.85	282.0	-1.4487	0.7329	0.1092
0.95	54.0	1.0012	0.6654	0.0786
0.95	78.0	-0.0216	0.5807	0.03
0.95	90.0	-1.1529	0.4993	0.0888
0.95	102.0	0.6009	0.5379	0.0529
0.95	114.0	0.0685	0.6468	0.0304
0.95	126.0	-0.8522	0.5336	0.0687
0.95	138.0	-0.4102	0.8262	0.0422

CLAS Physics Database