SMASH-ing Vacuum Metastability

C. R. Das; Katri Huitu; Timo J. Karkkainen

SMASH-ing Vacuum Metastability

High Energy Physics - Phenomenology 2018-11-01 v1

Authors: C. R. Das , Katri Huitu , Timo J. Karkkainen

Abstract

Five fundamental problems - neutrino oscillations, baryogenesis, dark matter, inflation, strong CP problem - are solved at one stroke in "SM-A-S-H" (Standard Model-Axion-Seesaw-Higgs portal inflation) model by Andreas Ringwald et. al. The Standard Model (SM) particle content was extended by three right-handed SM-singlet neutrinos $N_i$ , a vector-like color triplet quark $Q$ , a complex SM-singlet scalar field $\sigma$ that stabilises the Higgs potential, all of them being charged under a global lepton number (hyper-charge) and Peccei-Quinn (PQ) $U(1)$ symmetry. We found numerically that SMASH model not only solves five fundamental problems but also the sixth problem "Vacuum Metastability" through the extended scalar sector.

Keywords

two-higgs-doublet models gauge-higgs unification

Cite

@article{arxiv.1810.13232,
  title  = {SMASH-ing Vacuum Metastability},
  author = {C. R. Das and Katri Huitu and Timo J. Karkkainen},
  journal= {arXiv preprint arXiv:1810.13232},
  year   = {2018}
}

Comments

4 pages, 3 figures, "Contributed to the 14th Patras Workshop on Axions, WIMPs and WISPs, DESY in Hamburg, June 18 to 22, 2018"

SMASH-ing Vacuum Metastability

Abstract

Keywords

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