... it is not the fault of the top quark. A new paper by Holger Gies and René
Sondenheimer has been published by European Physical Journal C recently. They
critically re-assess conventional weak-coupling arguments that seem to imply
that the effective potential of the standard model is unstable because of top
quark fluctuations. Their new functional renormalization group analysis
instead exhibits no indication for vacuum instability induced by top-
fluctuations. The full analysis supported by exact results on fermionic
determinants is now available as an OpenAccess publication:
For a short summary for the fretful reader, see the headline.
Holger Gies
René Sondenheimer
Theoretisch-Physikalisches Institut, Friedrich-Schiller-Universität, Max-Wien-Platz 1, 07743 Jena, Germany