Electroweak vacuum stability and the Higgs field relaxation via gravitational effects
Sign Up to like & getrecommendations! Published in 2020 at "Classical and Quantum Gravity"
DOI: 10.1088/1361-6382/ab6997
Abstract: The measured values of the Standard Model (SM) parameters favors a shallow metastable electroweak (EW) vacuum surrounded by a deep global AdS or a runaway Minkowski minimum. Furthermore, fine-tuning is the only explanation for the… read more here.
Keywords: field; gravitational effects; electroweak vacuum; higgs field ... See more keywords
Two component singlet-triplet scalar dark matter and electroweak vacuum stability
Sign Up to like & getrecommendations! Published in 2021 at "Physical Review D"
DOI: 10.1103/physrevd.103.075001
Abstract: We propose a two component dark matter set-up by extending the Standard Model with a singlet and a hypercharge-less triplet scalars, each of them being odd under different $Z_2$ symmetries. We observe that the inter-conversion… read more here.
Keywords: dark matter; two component; electroweak vacuum; matter ... See more keywords
Electroweak vacuum stability in presence of singlet scalar dark matter in TeV scale seesaw models
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review D"
DOI: 10.1103/physrevd.96.055020
Abstract: We consider singlet extensions of the standard model, both in the fermion and the scalar sector, to account for the generation of neutrino mass at the TeV scale and the existence of dark matter respectively.… read more here.
Keywords: dark matter; electroweak vacuum; singlet scalar; singlet ... See more keywords
Gravitationally produced top quarks and the stability of the electroweak vacuum during inflation
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review D"
DOI: 10.1103/physrevd.99.036012
Abstract: In the standard model the (Brout-Englert-)Higgs quartic coupling becomes negative at high energies rendering our current electroweak vacuum metastable, but with an instability timescale much longer than the age of the Current Universe. During cosmological… read more here.
Keywords: electroweak vacuum; vacuum; inflation; stability ... See more keywords