Imperial College London

ProfessorArttuRajantie

Faculty of Natural SciencesDepartment of Physics

Professor of Theoretical Physics
 
 
 
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Contact

 

+44 (0)20 7594 7835a.rajantie Website CV

 
 
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Location

 

605Huxley BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Mantziris:2021:03/077,
author = {Mantziris, A and Markkanen, T and Rajantie, A},
doi = {03/077},
journal = {Journal of Cosmology and Astroparticle Physics},
pages = {1--22},
title = {Vacuum decay constraints on the Higgs curvature coupling from inflation},
url = {http://dx.doi.org/10.1088/1475-7516/2021/03/077},
volume = {2021},
year = {2021}
}

RIS format (EndNote, RefMan)

TY  - JOUR
AB - We derive lower bounds for the Higgs-curvature coupling from vacuum stability during inflation in three inflationary models: quadratic and quartic chaotic inflation, and Starobinsky-like power-law inflation. In contrast to most previous studies we take the time-dependence of the Hubble rate into account both in the geometry of our past light-cone and in the Higgs effective potential, which is approximated with three-loop renormalisation group improvement supplemented with one-loop curvature corrections. We find that in all three models, the lower bound is ξ 0.051... 0.066 depending on the top quark mass. We also demonstrate that vacuum decay is most likely to happen a few e-foldings before the end of inflation.
AU - Mantziris,A
AU - Markkanen,T
AU - Rajantie,A
DO - 03/077
EP - 22
PY - 2021///
SN - 1475-7516
SP - 1
TI - Vacuum decay constraints on the Higgs curvature coupling from inflation
T2 - Journal of Cosmology and Astroparticle Physics
UR - http://dx.doi.org/10.1088/1475-7516/2021/03/077
UR - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000636717400072&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR - https://iopscience.iop.org/article/10.1088/1475-7516/2021/03/077
UR - http://hdl.handle.net/10044/1/96430
VL - 2021
ER -