We refine and update the metastability constraint on the standard model (SM) top and Higgs masses by analytically including gravitational corrections to the vacuum decay rate. Present best-fit ranges of the top and Higgs masses mostly lie in the narrow metastable region. Furthermore, we show that the SM potential can be fine-tuned in order to be made suitable for inflation. However, SM inflation results in a power spectrum of cosmological perturbations not consistent with observations.
Autori interni: | ||
Autori: | Isidori G; Rychkov VS; Strumia A; Tetradis N | |
Titolo: | Gravitational corrections to standard model vacuum decay | |
Anno del prodotto: | 2008 | |
Digital Object Identifier (DOI): | 10.1103/PhysRevD.77.025034 | |
Appare nelle tipologie: | 1.1 Articolo in rivista |
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