Higgs boson, renormalization group, and naturalness in cosmology

By A. Barvinsky, A. Kamenshchik, Claus Kiefer, A. Starobinsky, C. Steinwachs. 2009

208 citations recorded by the source corpus.

We consider the renormalization group improvement in the theory of the Standard Model (SM) Higgs boson playing the role of an inflaton with a strong non-minimal coupling to gravity. At the one-loop level with the running of constants taken into account, it leads to a range of the Higgs mass that is entirely determined by the lower WMAP bound on the cosmic microwave background (CMB) spectral index. We find that the SM phenomenology is sensitive to current cosmological data, which suggests to perform more precise CMB measurements as a SM test complementary to the LHC program. By using the concept of a field-dependent cutoff, we show the naturalness of the gradient and curvature expansion in this model within the conventional perturbation theory range of the SM. We also discuss the relation of these results to two-loop calculations and the limitations of the latter caused by parametrization and gauge dependence problems.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics, Political Science and International Relations

View Paper: https://www.semanticscholar.org/paper/486140f7b448874ce9e5c335595fea62170741ec

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In Astronomy and Astrophysics

  1. J. Redondo
  2. A. Ringwald
  3. G. Ballesteros
  4. C. Tamarit
  5. Igor G. Irastorza
  6. G. Raffelt
  7. Maurizio Giannotti
  8. P. Graham

In Nuclear and High Energy Physics

  1. J. Redondo
  2. A. Ringwald
  3. G. Ballesteros
  4. C. Tamarit
  5. Igor G. Irastorza
  6. Maurizio Giannotti
  7. J. Jaeckel
  8. M. Goodsell

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