Abstract
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 language | English (US) |
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Article number | 043 |
Journal | Journal of High Energy Physics |
Volume | 2009 |
Issue number | 1 |
DOIs | |
State | Published - 2009 |
Keywords
- Beyond standard model
- Higgs physics
ASJC Scopus subject areas
- Nuclear and High Energy Physics