Universität zu Köln

Barvinsky, A. O., Kamenshchik, A. Yu., Kiefer, C., Starobinsky, A. A. and Steinwachs, C. F. (2012). Higgs boson, renormalization group, and naturalness in cosmology. Eur. Phys. J. C, 72 (11). NEW YORK: SPRINGER. ISSN 1434-6052

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Abstract

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.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Barvinsky, A. O. UNSPECIFIED UNSPECIFIED UNSPECIFIED Kamenshchik, A. Yu. UNSPECIFIED UNSPECIFIED UNSPECIFIED Kiefer, C. UNSPECIFIED UNSPECIFIED UNSPECIFIED Starobinsky, A. A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Steinwachs, C. F. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-480466
DOI:	10.1140/epjc/s10052-012-2219-3
Journal or Publication Title:	Eur. Phys. J. C
Volume:	72
Number:	11
Date:	2012
Publisher:	SPRINGER
Place of Publication:	NEW YORK
ISSN:	1434-6052
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language QUANTUM CREATION; EFFECTIVE EQUATIONS; DARK-MATTER; INFLATION; SCENARIO; UNIVERSE; MASS; FLUCTUATIONS; GENERATION; SPECTRUM Multiple languages Physics, Particles & Fields Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/48046