Higgs mass and vacuum stability in the Standard Model at NNLO
Roma Tre University · Istituto Nazionale di Fisica Nucleare, Sezione di Roma Tre · +7 more institutions
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.
Citation impact
- FWCI
- 150.01
- Percentile
- 100%
- References
- 46
Authors
7- GDGiuseppe DegrassiCorresponding
Roma Tre University, Istituto Nazionale di Fisica Nucleare, Sezione di Roma Tre
- SDStefano Di Vita
Roma Tre University, Istituto Nazionale di Fisica Nucleare, Sezione di Roma Tre
- JEJoan Elias-Miró
Universitat Autònoma de Barcelona
- JRJosé R. Espinosa
Institució Catalana de Recerca i Estudis Avançats, Universitat Autònoma de Barcelona
- GFGian F. Giudice
European Organization for Nuclear Research
Topics & keywords
- Higgs boson
- Standard Model (mathematical formulation)
- Higgs field
- Yukawa potential
- Quartic function
- Vacuum expectation value
- Quantum chromodynamics
- Vacuum state