Author:
Degrassi Giuseppe,Di Vita Stefano,Elias-Miró Joan,Espinosa José R.,Giudice Gian F.,Isidori Gino,Strumia Alessandro
Abstract
Abstract
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.
Publisher
Springer Science and Business Media LLC
Subject
Nuclear and High Energy Physics
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