Measurement E151M2166

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:	1.394
Q²:	0.348 GeV²
W:	1205.0 GeV
E_beam:	2.999 GeV
ε:	0.962

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.35	294.0	-0.1784	0.7419
0.45	294.0	1.1364	0.6917
0.55	282.0	0.3171	0.7077
0.55	294.0	-0.2836	0.6109
0.65	270.0	0.3412	0.6782
0.65	282.0	-0.7245	0.6528
0.65	294.0	-0.3907	0.505
0.75	66.0	-0.2324	0.6812
0.75	78.0	0.0681	0.6697
0.75	90.0	0.6195	0.6396
0.75	270.0	-0.0767	0.7758
0.75	282.0	0.4048	0.6721
0.75	294.0	1.1639	0.5102
0.85	54.0	0.4018	0.7487
0.85	66.0	-0.0197	0.5227
0.85	78.0	0.411	0.5123
0.85	90.0	-0.3789	0.6396
0.85	102.0	-0.3242	0.6672
0.85	306.0	0.0902	0.7068
0.95	42.0	1.1377	0.574
0.95	54.0	0.5738	0.6355
0.95	102.0	-0.2688	0.6342

CLAS Physics Database