Asymptotic safety of gravity, the Higgs boson mass and beyond the Standard Model physics

Abstract

There are many hints that gravity is asymptotically safe. The inclusion of gravitational corrections can result in the ultraviolet fundamental Standard Model and constrain the Higgs mass to take the smallest value such that electroweak vacuum is stable. Taking into account the current top quark mass measurements this value is $m_H\approx 130$ GeV.\\ This article considers the predictions of the Higgs mass in two minimal Beyond Standard Model scenarios, where the stability is improved. One is the sterile quark axion model, while the other is the $U(1{)}_{B-L}$ gauge symmetry model introducing a new massive $Z^{\prime }$ gauge boson. The inclusion of $Z^{\prime }$ boson gives the correct prediction for this mass, while inclusion of sterile quark(s) gives only a slight effect.\\ Also a new, gravitational solution to the strong CP problem is discussed.

arXiv comment7 pages, 3 figures

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