Enhanced effect of temporal variation of the fine structure constant and strong interaction in 229Th

Details Enhanced effect of temporal variation of the fine structure constant and strong interaction in 229Th Enhanced effect of temporal variation of the fine structure constant and strong interaction in 229Th

2006-04-24

arxiv.org/abs/physics/0604188v3

Phys.Rev.Lett.97,092502(2006)

Physics

Atomic Physics

3 pages, reference [13] added to v2

Scientific paper

The relative effects of variation of the fine structure constant alpha=e^2/hc and dimensionless strong interaction parameter m_q/Lambda_{QCD} are enhanced 5-6 orders of magnitude in very narrow ultraviolet transition between the ground and first excited state in 229Th nucleus (energy (3.5 +/- 1) eV). Corresponding experiment has potential of improving sensitivity to the variation of the fundamental constants by 7-10 orders of magnitude (up to 10^{-23} per year).

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