Higgs inflation, quantum smearing, and the tensor to scalar ratio

Journal Article · Tue Jun 15 04:00:00 EDT 2010 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.81.123525· OSTI ID:21408058

Rehman, Mansoor Ur; Shafi, Qaisar ^[1]

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1. Bartol Research Institute, Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716 (United States)

In cosmic inflation driven by a scalar gauge singlet field with a tree level Higgs potential, the scalar to tensor ratio r is estimated to be larger than 0.036, provided the scalar spectral index n{sub s{>=}}0.96. We discuss quantum smearing of these predictions arising from the inflaton couplings to other particles such as grand unified theory scalars, and show that these corrections can significantly decrease r. However, for n{sub s{>=}}0.96, we obtain r{>=}0.02 which can be tested by the Planck satellite.

• OSTI ID: 21408058
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 12 Vol. 81; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
79 ASTRONOMY AND ASTROPHYSICS
BOSONS
CORRECTIONS
COSMOLOGICAL MODELS
COUPLING
ELEMENTARY PARTICLES
FIELD THEORIES
FORECASTING
GRAND UNIFIED THEORY
HIGGS BOSONS
HIGGS MODEL
INFLATIONARY UNIVERSE
MATHEMATICAL MODELS
PARTICLE MODELS
PARTICLES
POSTULATED PARTICLES
QUANTUM FIELD THEORY
UNIFIED GAUGE MODELS