Test of Lorentz invariance in $\beta$ decay of polarized $^{20}\text{Na}$
Nuclear Experiment
2016-08-17 v1
Abstract
We search for a dependence of the lifetime of nuclei on the nuclear spin direction. Such a directional dependence would be evidence for Lorentz-invariance violation in weak interactions. A difference in lifetime between nuclei that are polarized in the east and west direction is searched for. This difference is maximally sensitive to the rotation of the Earth, while the sidereal dependence is free from most systematic errors. The experiment sets a limit of at 90 % C.L. on the amplitude of the sidereal variation of the relative lifetime differences, an improvement by a factor 15 compared to an earlier result.
Keywords
Cite
@article{arxiv.1608.03870,
title = {Test of Lorentz invariance in $\beta$ decay of polarized $^{20}\text{Na}$},
author = {A. Sytema and J. E. van den Berg and O. Böll and D. Chernowitz and E. A. Dijck and J. O. Grasdijk and S. Hoekstra and K. Jungmann and S. C. Mathavan and C. Meinema and A. Mohanty and S. E. Müller and J. P. Noordmans and M. Nuñez Portela and C. J. G. Onderwater and C. Pijpker and R. G. E. Timmermans and K. K. Vos and L. Willmann and H. W. Wilschut},
journal= {arXiv preprint arXiv:1608.03870},
year = {2016}
}
Comments
23 pages, 8 figures, 4 tables