6533b7d0fe1ef96bd125ad30
RESEARCH PRODUCT
Spacetime curvature and Higgs stability after inflation
Arttu RajantieArttu RajantieTommi MarkkanenTommi MarkkanenMatti HerranenSami NurmiSami Nurmisubject
General PhysicsParticle physicsCosmology and Nongalactic Astrophysics (astro-ph.CO)spacetime curvaturePhysics MultidisciplinaryVacuum stateFOS: Physical sciencesGeneral Physics and Astronomy01 natural sciences09 Engineeringrenormalizationvacuum stateStandard ModelGravitationGeneral Relativity and Quantum CosmologyHigh Energy Physics - Phenomenology (hep-ph)vacuum stability0103 physical sciencesPARTICLE-PRODUCTIONELECTROWEAK VACUUMHiggs fieldHiggs particles010306 general physics01 Mathematical SciencesPlanck scalePhysicsInflation (cosmology)Science & Technology02 Physical SciencesQuantum field theory in curved spacetimeta114010308 nuclear & particles physicsPhysicsHigh Energy Physics::Phenomenologyhep-phInflatonFIELDSThe Standard ModelCREATIONHiggs fieldHigh Energy Physics - PhenomenologyPhysical Sciencesastro-ph.COHiggs bosonAstrophysics - Cosmology and Nongalactic Astrophysicsdescription
We investigate the dynamics of the Higgs field at the end of inflation in the minimal scenario consisting of an inflaton field coupled to the Standard Model only through the non-minimal gravitational coupling $\xi$ of the Higgs field. Such a coupling is required by renormalisation of the Standard Model in curved space, and in the current scenario also by vacuum stability during high-scale inflation. We find that for $\xi\gtrsim 1$, rapidly changing spacetime curvature at the end of inflation leads to significant production of Higgs particles, potentially triggering a transition to a negative-energy Planck scale vacuum state and causing an immediate collapse of the Universe.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2015-06-12 |