Measurement E151M1663

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:	0.0126
Q²:	0.0171 GeV²
W:	1595.0 GeV
E_beam:	1.3383 GeV
ε:	0.5894

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.55	210.0	0.1168	1.3548	0.0308
0.55	222.0	-0.7789	0.6617	0.0765
0.65	222.0	-0.6683	1.1883	0.0491
0.75	222.0	-0.7031	1.2312	0.0507
0.75	234.0	-0.7333	0.9879	0.0521
0.85	222.0	-1.5522	0.6742	0.0951
0.55	234.0	-0.1199	1.0394	0.0308
0.75	30.0	-0.9202	0.8844	0.0628
0.75	222.0	0.4034	0.9013	0.0385
0.75	234.0	-0.975	0.9737	0.0657
0.85	222.0	-0.5681	0.843	0.0454
0.85	234.0	1.1382	0.935	0.0745

CLAS Physics Database