Searching for Lee-Wick Gauge Bosons at the LHC

Understand

In an extension of the Standard Model(SM) based on the ideas of Lee and Wick, Grinstein, O'Connell and Wise have found an interesting way to remove the usual quadratically divergent contributions to the Higgs mass induced by radiative corrections.

• Phenomenologically, the model predicts the existence of Terascale, negative-norm copies of the usual SM fields with rather unique properties: ghost-like propagators and negative decay widths, but with otherwise SM-like couplings.
• The model is both unitary and causal on macroscopic scales.
• In this paper we examine whether or not such states with these unusual properties can be uniquely identified as such at the LHC.