Phys. Rev. D 69, 115006 (2004) [8 pages]Limits on variations of the quark masses, QCD scale, and fine structure constantReceived 10 February 2004; published 2 June 2004 We perform calculations of the dependence of nuclear magnetic moments on quark masses and obtain limits on the variation of the fine structure constant α and (mq/ΛQCD) from recent measurements of hydrogen hyperfine (21 cm) and molecular rotational transitions in quasar absorption systems, atomic clock experiments with hyperfine transitions in H, Rb, Cs, Yb+, Hg+, and optical transition in Hg+. Experiments with Cd+, deuterium/hydrogen, molecular SF6, and Zeeman transitions in 3He/Xe are also discussed. © 2004 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevD.69.115006
DOI:
10.1103/PhysRevD.69.115006
PACS:
06.20.Jr, 06.30.Ft, 12.10.Dm
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