A higher-derivative Lee-Wick standard model

Christopher D. Carone, Richard Lebed

Research output: Contribution to journalArticlepeer-review

51 Scopus citations


The Lee-Wick Standard Model assumes a minimal set of higher-derivative quadratic terms that produce a negative-norm partner for each Standard Model particle. Here we introduce additional terms of one higher order in the derivative expansion that give each Standard Model particle two Lee-Wick partners: one with negative and one with positive norm. These states collectively cancel unwanted quadratic divergences and resolve the hierarchy problem as in the minimal theory. We show how this next-to-minimal higher-derivative theory may be reformulated via an auxiliary field approach and written as a Lagrangian with interactions of dimension four or less. This mapping provides a convenient framework for studies of the formal and phenomenological properties of the theory.

Original languageEnglish (US)
Article number043
JournalJournal of High Energy Physics
Issue number1
StatePublished - 2009


  • Beyond standard model
  • Higgs physics

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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