Higgs Inflation, Quantum Smearing and the Tensor to Scalar Ratio

Details Higgs Inflation, Quantum Smearing and the Tensor to Scalar Ratio Higgs Inflation, Quantum Smearing and the Tensor to Scalar Ratio

2010-03-30

arxiv.org/abs/1003.5915v1

Phys.Rev.D81:123525,2010

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

10 pages, 3 figures and 3 tables

Scientific paper

10.1103/PhysRevD.81.123525

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_s >= 0.96. We discuss quantum smearing of these predictions arising from the inflaton couplings to other particles such as GUT scalars, and show that these corrections can significantly decrease r. However, for n_s >= 0.96, we obtain r >= 0.02 which can be tested by the Planck satellite.

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