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Speaker |
Kamenshchik, Alexander |
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Talk Title |
Asymptotic freedom in inflationary cosmology with a non-minimally coupled Higgs field. |
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Abstract |
We consider the renormalization group improvement in the theory of the Standard Model Higgs boson playing the role of an inflaton with a strong non-minimal coupling to gravity. It suggests the range of the Higgs mass 124 < M_H < 180 GeV compatible with the current CMB data. We find the phenomenon of asymptotic freedom induced by this non-minimal curvature coupling, which brings the theory to the weak coupling domain. The renormalization group running of a basic quantity -- the anomalous scaling in the non-minimally coupled Standard Model, which analytically determines all characteristics of the CMB spectrum -- brings it to small positive values at the inflation scale. This property also might underlie the formation of initial conditions for the inflationary dynamics in quantum cosmology. |
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