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High Energy Physics - Phenomenology

arXiv:1512.04768 (hep-ph)
[Submitted on 15 Dec 2015 (v1), last revised 20 May 2016 (this version, v2)]

Title:Higgs Inflation with a Gauss-Bonnet term in the Jordan Frame

Authors:Carsten van de Bruck, Chris Longden
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Abstract:We consider an extension of Higgs inflation in which the Higgs field is coupled to the Gauss-Bonnet term. Working solely in the Jordan frame, we firstly recover the standard predictions of Higgs inflation without a Gauss-Bonnet term. We then calculate the power spectra for scalar and tensor perturbations in the presence of a coupling to a Gauss-Bonnet term. We show that generically the predictions of Higgs inflation are robust and the contributions to the power spectra coming from the Gauss-Bonnet term are negligible. We find, however, that the end of inflation can be strongly modified and that we hence expect the details of (p)reheating to be significantly altered, leading to some concerns over the feasibility of the model which require further investigations.
Comments: 24 pages, 2 figures, updated to match published version
Subjects: High Energy Physics - Phenomenology (hep-ph); Cosmology and Nongalactic Astrophysics (astro-ph.CO); General Relativity and Quantum Cosmology (gr-qc); High Energy Physics - Theory (hep-th)
Cite as: arXiv:1512.04768 [hep-ph]
  (or arXiv:1512.04768v2 [hep-ph] for this version)
  https://doi.org/10.48550/arXiv.1512.04768
Journal reference: Phys. Rev. D 93, 063519 (2016)
Related DOI: https://doi.org/10.1103/PhysRevD.93.063519

Submission history

From: Chris Longden [view email]
[v1] Tue, 15 Dec 2015 12:58:08 UTC (47 KB)
[v2] Fri, 20 May 2016 13:57:00 UTC (48 KB)
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