6533b854fe1ef96bd12af4ea
RESEARCH PRODUCT
Early Universe Higgs dynamics in the presence of the Higgs-inflaton and non-minimal Higgs-gravity couplings
Mindaugas KarciauskasOleg LebedevYohei EmaMarco Zattasubject
Particle physicsCosmology and Nongalactic Astrophysics (astro-ph.CO)Physics beyond the Standard Modelmedia_common.quotation_subjectHigh Energy Physics::LatticeFOS: Physical sciencesAstrophysics::Cosmology and Extragalactic Astrophysics01 natural sciences114 Physical sciencesGeneral Relativity and Quantum CosmologyHigh Energy Physics - Phenomenology (hep-ph)Metastability0103 physical sciencesphysics of the early universeinflationparticle physicscosmology connectionELECTROWEAK VACUUM010306 general physicscosmology of theories beyond the SMmedia_commonInflation (cosmology)PhysicsSTABILITY010308 nuclear & particles physicsElectroweak interactionHigh Energy Physics::PhenomenologyAstronomy and AstrophysicsBOSONInflaton115 Astronomy Space scienceUniverseHigh Energy Physics - PhenomenologyHiggs fieldHiggs bosonHigh Energy Physics::ExperimentAstrophysics - Cosmology and Nongalactic Astrophysicsdescription
Apparent metastability of the electroweak vacuum poses a number of cosmological questions. These concern evolution of the Higgs field to the current vacuum, and its stability during and after inflation. Higgs-inflaton and non-minimal Higgs-gravity interactions can make a crucial impact on these considerations potentially solving the problems. In this work, we allow for these couplings to be present simultaneously and study their interplay. We find that different combinations of the Higgs-inflaton and non-minimal Higgs-gravity couplings induce effective Higgs mass during and after inflation. This crucially affects the Higgs stability considerations during preheating. In particular, a wide range of the couplings leading to stable solutions becomes allowed.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2017-03-14 |