Higher-Derivative Lee-Wick Unification
arXiv:0904.2359 · doi:10.1016/j.physletb.2009.05.053
Abstract
We consider gauge coupling unification in Lee-Wick extensions of the Standard Model that include higher-derivative quadratic terms beyond the minimally required set. We determine how the beta functions are modified when some Standard Model particles have two Lee-Wick partners. We show that gauge coupling unification can be achieved in such models without requiring the introduction of additional fields in the higher-derivative theory and we comment on possible ultraviolet completions.
11 pages LaTeX, 2 eps figures. v2: minor clarifications
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