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Report/Journal Article | PUBDB-2017-01479 |
; ; ;
2017
APS
Woodbury, NY
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Please use a persistent id in citations: doi:10.1103/PhysRevD.95.056004 doi:10.3204/PUBDB-2017-01479
Report No.: CERN-TH-2016-187; DESY-16-161; arXiv:1608.06765
Abstract: 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.
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Gauge-Independent Scales Related to the Standard Model Vacuum Instabilit
43 pp. (2016)
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