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	syst. uncert.
0.65	198.0	-1.4921	1.151	0.1123
0.75	102.0	0.21	1.0946	0.0336
0.75	114.0	-0.3221	1.0624	0.038
0.75	198.0	1.2236	1.1501	0.0937
0.75	210.0	1.7587	0.8385	0.131
0.75	258.0	-0.3996	1.0028	0.0417
0.75	270.0	-0.202	0.915	0.0334
0.75	282.0	0.686	0.9871	0.0581
0.85	102.0	-0.4042	0.8601	0.0419
0.85	114.0	-1.7984	0.7221	0.1338
0.85	126.0	-0.7726	1.0382	0.0635
0.85	186.0	-1.5704	0.9649	0.1178
0.85	198.0	-1.4434	0.7759	0.1089
0.85	210.0	-0.9069	0.8931	0.0723

CLAS Physics Database