Measurement E151M2419

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:	0.0396
Q²:	0.101 GeV²
W:	1865.0 GeV
E_beam:	2.999 GeV
ε:	0.8111

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.65	198.0	-1.4921	1.151
0.75	102.0	0.21	1.0946
0.75	114.0	-0.3221	1.0624
0.75	198.0	1.2236	1.1501
0.75	210.0	1.7587	0.8385
0.75	258.0	-0.3996	1.0028
0.75	270.0	-0.202	0.915
0.75	282.0	0.686	0.9871
0.85	102.0	-0.4042	0.8601
0.85	114.0	-1.7984	0.7221
0.85	126.0	-0.7726	1.0382
0.85	186.0	-1.5704	0.9649
0.85	198.0	-1.4434	0.7759
0.85	210.0	-0.9069	0.8931

CLAS Physics Database