Higgs mass and vacuum stability in the Standard Model at NNLO

We present the first complete next-to-next-to-leading order analysis of the Standard Model Higgs potential. We computed the two-loop QCD and Yukawa corrections to the relation between the Higgs quartic coupling (lambda) and the Higgs mass (Mh), reducing the theoretical uncertainty in the determinati...

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Detalles Bibliográficos
Autores principales: Degrassi, Giuseppe, Di Vita, Stefano, Elias-Miró, Joan, Espinosa, José R, Giudice, Gian F, Isidori, Gino, Strumia, Alessandro
Lenguaje:eng
Publicado: 2012
Materias:
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1007/JHEP08(2012)098
http://cds.cern.ch/record/1452986
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author Degrassi, Giuseppe
Di Vita, Stefano
Elias-Miró, Joan
Espinosa, José R
Giudice, Gian F
Isidori, Gino
Strumia, Alessandro
author_facet Degrassi, Giuseppe
Di Vita, Stefano
Elias-Miró, Joan
Espinosa, José R
Giudice, Gian F
Isidori, Gino
Strumia, Alessandro
author_sort Degrassi, Giuseppe
collection CERN
description We present the first complete next-to-next-to-leading order analysis of the Standard Model Higgs potential. We computed the two-loop QCD and Yukawa corrections to the relation between the Higgs quartic coupling (lambda) and the Higgs mass (Mh), reducing the theoretical uncertainty in the determination of the critical value of Mh for vacuum stability to 1 GeV. While lambda at the Planck scale is remarkably close to zero, absolute stability of the Higgs potential is excluded at 98% C.L. for Mh < 126 GeV. Possible consequences of the near vanishing of lambda at the Planck scale, including speculations about the role of the Higgs field during inflation, are discussed.
id cern-1452986
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2012
record_format invenio
spelling cern-14529862019-09-30T06:29:59Zdoi:10.1007/JHEP08(2012)098http://cds.cern.ch/record/1452986engDegrassi, GiuseppeDi Vita, StefanoElias-Miró, JoanEspinosa, José RGiudice, Gian FIsidori, GinoStrumia, AlessandroHiggs mass and vacuum stability in the Standard Model at NNLOParticle Physics - PhenomenologyWe present the first complete next-to-next-to-leading order analysis of the Standard Model Higgs potential. We computed the two-loop QCD and Yukawa corrections to the relation between the Higgs quartic coupling (lambda) and the Higgs mass (Mh), reducing the theoretical uncertainty in the determination of the critical value of Mh for vacuum stability to 1 GeV. While lambda at the Planck scale is remarkably close to zero, absolute stability of the Higgs potential is excluded at 98% C.L. for Mh < 126 GeV. Possible consequences of the near vanishing of lambda at the Planck scale, including speculations about the role of the Higgs field during inflation, are discussed.arXiv:1205.6497CERN-PH-TH-2012-134RM3-TH-12-9oai:cds.cern.ch:14529862012-05-31
spellingShingle Particle Physics - Phenomenology
Degrassi, Giuseppe
Di Vita, Stefano
Elias-Miró, Joan
Espinosa, José R
Giudice, Gian F
Isidori, Gino
Strumia, Alessandro
Higgs mass and vacuum stability in the Standard Model at NNLO
title Higgs mass and vacuum stability in the Standard Model at NNLO
title_full Higgs mass and vacuum stability in the Standard Model at NNLO
title_fullStr Higgs mass and vacuum stability in the Standard Model at NNLO
title_full_unstemmed Higgs mass and vacuum stability in the Standard Model at NNLO
title_short Higgs mass and vacuum stability in the Standard Model at NNLO
title_sort higgs mass and vacuum stability in the standard model at nnlo
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1007/JHEP08(2012)098
http://cds.cern.ch/record/1452986
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AT eliasmirojoan higgsmassandvacuumstabilityinthestandardmodelatnnlo
AT espinosajoser higgsmassandvacuumstabilityinthestandardmodelatnnlo
AT giudicegianf higgsmassandvacuumstabilityinthestandardmodelatnnlo
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