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A Time Variation of the QCD Scale

  • Harald Fritzsch
Conference paper
Part of the Springer Proceedings in Physics book series (SPPHY, volume 92)

Abstract

Astrophysical indications that the fine structure constant has undergone a small time variation during the cosmological evolution are discussed within the framework of the standard model of the electroweak and strong interactions and of grand unification. A variation of the electromagnetic coupling constant could either be generated by a corresponding time variation of the unified coupling constant or by a time variation of the unification scale, of by both. The various possibilities, differing substantially in their implications for the variation of low energy physics parameters like the nuclear mass scale, are discussed. The case in which the variation is caused by a time variation of the unification scale is of special interest.

Keywords

Time Change Grand Unify Theory Nucleon Mass Cosmological Evolution Fine Structure Constant 
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Copyright information

© Springer-Verlag Berlin Heidelberg 2004

Authors and Affiliations

  • Harald Fritzsch
    • 1
  1. 1.Ludwig-Maximilians-University Münich, Sektion PhysikMünchenGermany

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