Gaussian effective potential for the standard model SU(2)×U(1) electroweak theory

Luca Marotta, Luca Marotta, Fabio Siringo

Risultato della ricerca: Article

15 Citazioni (Scopus)

Abstract

The Gaussian effective potential is derived for the non-Abelian SU(2)×U(1) gauge theory of electroweak interactions. At variance with naive derivations, the Gaussian effective potential is proven to be a genuine variational tool in any gauge. The role of ghosts is discussed and the unitarity gauge is shown to be the only choice which allows calculability without insertion of further approximations. The full non-Abelian calculation confirms the existence of a light Higgs boson in the nonperturbative strong coupling regime of the Higgs sector.
Lingua originaleEnglish
pagine (da-a)016003-1-016003-9
Numero di pagine9
RivistaPHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY
Volume78
Stato di pubblicazionePublished - 2008

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

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