The Lorentz and CPT violating effects on the Z -> l(+) l(-) decay

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Iltan E.

EUROPEAN PHYSICAL JOURNAL C, vol.40, no.2, pp.269-273, 2005 (Peer-Reviewed Journal) identifier identifier

  • Publication Type: Article / Article
  • Volume: 40 Issue: 2
  • Publication Date: 2005
  • Doi Number: 10.1140/epjc/s2005-02146-8
  • Journal Indexes: Science Citation Index Expanded, Scopus
  • Page Numbers: pp.269-273


We study the Lorentz and CPT violating effects on the branching ratio, the CPT violating asymmetry and the ratio of the decay width, including only the Lorentz violating effects, to the one obtained in the standard model, for the flavor dependent part of the lepton flavor conserving Z -> l(+) l(-) (l = e, mu, tau) decay. The inclusion of the Lorentz and CPT violating e. ects in the standard model contribution are too small to be detected, since the corresponding coefficients are highly suppressed at the low energy scale.