Sensitivity of hyperfine structure to nuclear radius and quark mass variation

被引：38

作者：

Dinh, T. H. ^{[1
]}

Dunning, A. ^{[1
]}

Dzuba, V. A. ^{[1
]}

Flambaum, V. V. ^{[1
,2
]}

机构：

[1] Univ New S Wales, Sch Phys, Sydney, NSW 2052, Australia

[2] Massey Univ, New Zealand Inst Adv Study, Auckland 0745, New Zealand

来源：

PHYSICAL REVIEW A | 2009年 / 79卷 / 05期

基金：

澳大利亚研究理事会;

关键词：

atomic structure; cadmium; caesium; constants; HF calculations; hyperfine structure; mercury (metal); nuclear size; quark mass; rubidium; ytterbium; SPACE-TIME VARIATION; FUNDAMENTAL CONSTANTS; CESIUM; CLOCKS; LIMITS;

D O I：

10.1103/PhysRevA.79.054102

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

To search for the temporal variation in the fundamental constants, one needs to know dependence of atomic transition frequencies on these constants. We study the dependence of the hyperfine structure of atomic s levels on nuclear radius and, via radius, on quark masses. An analytical formula has been derived and tested by the numerical relativistic Hartree-Fock calculations for Rb, Cd+, Cs, Yb+, and Hg+. The results of this work allow the use of the results of past and future atomic clock experiments and quasar spectra measurements to put constraints on time variation in the quark masses.

引用

页数：4

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