Investigating the near-criticality of the Higgs boson

We extract from data the parameters of the Higgs potential, the top Yukawa coupling and the electroweak gauge couplings with full 2-loop NNLO precision, and we extrapolate the SM parameters up to large energies with full 3-loop NNLO RGE precision. Then we study the phase diagram of the Standard Mode...

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Detalles Bibliográficos
Autores principales: Buttazzo, Dario, Degrassi, Giuseppe, Giardino, Pier Paolo, Giudice, Gian F., Sala, Filippo, Salvio, Alberto, Strumia, Alessandro
Lenguaje:eng
Publicado: 2013
Materias:
Particle Physics - Phenomenology
Particle Physics - Theory
Acceso en línea:https://dx.doi.org/10.1007/JHEP12(2013)089
http://cds.cern.ch/record/1561905
Descripción
Sumario:We extract from data the parameters of the Higgs potential, the top Yukawa coupling and the electroweak gauge couplings with full 2-loop NNLO precision, and we extrapolate the SM parameters up to large energies with full 3-loop NNLO RGE precision. Then we study the phase diagram of the Standard Model in terms of high-energy parameters, finding that the measured Higgs mass roughly corresponds to the minimum values of the Higgs quartic and top Yukawa and the maximum value of the gauge couplings allowed by vacuum metastability. We discuss various theoretical interpretations of the near-criticality of the Higgs mass.

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