Gauge-independent scales related to the standard model vacuum instability
| Autor: | Antonio Riotto, Mathias Garny, J. R. Espinosa, Thomas Konstandin |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
High Energy Physics - Theory
Particle physics Top quark Astrophysics and Astronomy Cosmology and Nongalactic Astrophysics (astro-ph.CO) High Energy Physics::Lattice Vacuum state FOS: Physical sciences 01 natural sciences symbols.namesake High Energy Physics - Phenomenology (hep-ph) 0103 physical sciences ddc:530 010306 general physics Particle Physics - Phenomenology Physics 010308 nuclear & particles physics hep-th Electroweak interaction High Energy Physics::Phenomenology hep-ph High Energy Physics - Phenomenology Higgs field Superfluid vacuum theory High Energy Physics - Theory (hep-th) Higgs boson symbols astro-ph.CO High Energy Physics::Experiment Higgs mechanism Particle Physics - Theory Astrophysics - Cosmology and Nongalactic Astrophysics False vacuum |
| Zdroj: | Physical Review D Physical review / D 95(5), 056004(2017). doi:10.1103/PhysRevD.95.056004 Physical review / D 95(5), 056004 (2017). doi:10.1103/PhysRevD.95.056004 |
| ISSN: | 2470-0010 0044-0027 0038-5506 |
| DOI: | 10.1103/PhysRevD.95.056004 |
| Popis: | Physical review / D covering particles, fields, gravitation, and cosmology 95(5), 056004(2017). doi:10.1103/PhysRevD.95.056004 The measured (central) values of the Higgs and top quark masses indicate that the Standard Model (SM) effective potential develops an instability at high field values. The scale of this instability, determined as the Higgs field value at which the potential drops below the electroweak minimum, is about $10^{11}$ GeV. However, such a scale is unphysical as it is not gauge-invariant and suffers from a gauge-fixing uncertainty of up to two orders of magnitude. Subjecting our system, the SM, to several probes of the instability (adding higher order operators to the potential; letting the vacuum decay through critical bubbles; heating up the system to very high temperature; inflating it) and asking in each case physical questions, we are able to provide several gauge-invariant scales related with the Higgs potential instability. Published by APS, Woodbury, NY |
| Databáze: | OpenAIRE |
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