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research article

Living beyond the edge: Higgs inflation and vacuum metastability

Bezrukov, Fedor
•
Rubio, Javier  
•
Shaposhnikov, Mikhail  
2015
Physical Review D [1970-2015]

The measurements of the Higgs mass and top Yukawa coupling indicate that we live in a very special universe, at the edge of the absolute stability of the electroweak vacuum. If fully stable, the Standard Model (SM) can be extended all the way up to the inflationary scale and the Higgs field, nonminimally coupled to gravity with strength xi, can be responsible for inflation. We show that the successful Higgs inflation scenario can also take place if the SM vacuum is not absolutely stable. This conclusion is based on two effects that were overlooked previously. The first one is associated with the effective renormalization of the SM couplings at the energy scale M-P/xi, where M-P is the Planck scale. The second one is a symmetry restoration after inflation due to high temperature effects that leads to the (temporary) disappearance of the vacuum at Planck values of the Higgs field.

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Type
research article
DOI
10.1103/PhysRevD.92.083512
Web of Science ID

WOS:000362901000001

Author(s)
Bezrukov, Fedor
Rubio, Javier  
Shaposhnikov, Mikhail  
Date Issued

2015

Publisher

American Physical Society

Published in
Physical Review D [1970-2015]
Volume

92

Issue

8

Article Number

083512

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LPPC  
Available on Infoscience
December 2, 2015
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/121097
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