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Title: Living beyond the edge: Higgs inflation and vacuum metastability

Abstract

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 ξ, 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/ξ, where M P is the Planck scale. Lastly, 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.

Authors:
 [1];  [2];  [2]
  1. Univ. of Connecticut, Storrs, CT (United States). Physics Dept.; Brookhaven National Lab. (BNL), Upton, NY (United States). RIKEN Research Center; European Organization for Nuclear Research (CERN), Geneva (Switzerland)
  2. Ecole Polytechnique Federale Lausanne (Switzlerland). Inst. of Theoretical Physics
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States). RIKEN Research Center
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
OSTI Identifier:
1335429
Report Number(s):
BNL-112087-2016-JA
Journal ID: ISSN 1550-7998; PRVDAQ; R&D Project: PO-3
Grant/Contract Number:  
SC00112704
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review. D, Particles, Fields, Gravitation and Cosmology
Additional Journal Information:
Journal Volume: 92; Journal Issue: 8; Journal ID: ISSN 1550-7998
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Riken BNL Research Center

Citation Formats

Bezrukov, Fedor, Rubio, Javier, and Shaposhnikov, Mikhail. Living beyond the edge: Higgs inflation and vacuum metastability. United States: N. p., 2015. Web. doi:10.1103/PhysRevD.92.083512.
Bezrukov, Fedor, Rubio, Javier, & Shaposhnikov, Mikhail. Living beyond the edge: Higgs inflation and vacuum metastability. United States. doi:10.1103/PhysRevD.92.083512.
Bezrukov, Fedor, Rubio, Javier, and Shaposhnikov, Mikhail. Tue . "Living beyond the edge: Higgs inflation and vacuum metastability". United States. doi:10.1103/PhysRevD.92.083512. https://www.osti.gov/servlets/purl/1335429.
@article{osti_1335429,
title = {Living beyond the edge: Higgs inflation and vacuum metastability},
author = {Bezrukov, Fedor and Rubio, Javier and Shaposhnikov, Mikhail},
abstractNote = {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 ξ, 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 MP/ξ, where MP is the Planck scale. Lastly, 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.},
doi = {10.1103/PhysRevD.92.083512},
journal = {Physical Review. D, Particles, Fields, Gravitation and Cosmology},
number = 8,
volume = 92,
place = {United States},
year = {2015},
month = {10}
}

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