Journal
ASTROPARTICLE PHYSICS
Volume 84, Issue -, Pages 1-7Publisher
ELSEVIER
DOI: 10.1016/j.astropartphys.2016.07.004
Keywords
Higgs inflation; Gauss-Bonnet inflation
Funding
- Max Planck-India Partner Group on Gravity and Cosmology
- UGC Fellowship
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Recent LHC data provides precise values of coupling constants of the Higgs field, however, these measurements do not determine its coupling with gravity. We explore this freedom to see whether Higgs field non-minimally coupled to Gauss-Bonnet term in 4-dimensions can lead to inflation generating the observed density fluctuations. We obtain analytical solution for this model and that the exit of inflation (with a finite number of e-folding) demands that the energy scale of inflation is close to Electro-weak scale. We compare the scalar and tensor power spectrum of our model with PLANCK data and discuss its implications. (C) 2016 Elsevier B.V. All rights reserved.
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