Journal of High Energy Physics· 2012Q2
Higgs mass and vacuum stability in the Standard Model at NNLO
- 1,252citations
- Q2SCImago
- 2012year
Short summary
A complete NNLO analysis of the Standard Model Higgs potential reduces the uncertainty in the critical Higgs mass for vacuum stability to 1 GeV, excluding absolute stability for Higgs masses below 126 GeV at 98% C.L.
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Key points
- First complete NNLO analysis of the Standard Model Higgs potential.
- Two-loop QCD and Yukawa corrections computed for the Higgs quartic coupling (λ) and Higgs mass (Mh) relation.
- Theoretical uncertainty in critical Mh for vacuum stability reduced to 1 GeV.
- Absolute stability of the Higgs potential excluded for Mh < 126 GeV at 98% C.L.
AI-generated from the title and abstract; the full text is not read.
Abstract
A bstract 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 ( λ ) and the Higgs mass ( M h ), reducing the theoretical uncertainty in the determination of the critical value of M h for vacuum stability to 1 GeV. While λ at the Planck scale is remarkably close to zero, absolute stability of the Higgs potential is excluded at 98 % C.L. for M h < 126 GeV. Possible consequences of the near vanishing of λ at the Planck scale, including speculations about the role of the Higgs field during inflation, are discussed.
The authors' abstract, as published at the source. Journal of High Energy Physics, 2012 · DOI ↗
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Field: Nuclear and High Energy Physics
Nuclear and High Energy PhysicsPhysics and Astronomy