General analysis of inflation in the Jordan frame supergravity

Journal Article · Mon Nov 01 04:00:00 EDT 2010 · Journal of Cosmology and Astroparticle Physics

DOI:https://doi.org/10.1088/1475-7516/2010/11/039· OSTI ID:22275466

Nakayama, Kazunori ^[1]; Takahashi, Fuminobu ^[2]

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1. Theory Center, KEK, 1-1 Oho, Tsukuba, Ibaraki 305-0801 (Japan)
2. Institute for the Physics and Mathematics of the Universe, University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8583 (Japan)

We study various inflation models in the Jordan frame supergravity with a logarithmic Kähler potential. We find that, in a class of inflation models containing an additional singlet in the superpotential, three types of chaotic inflation can be realized: the Higgs-type inflation, power-law inflation, and inflation with/without a running kinetic term. The former two are possible if the holomorphic function dominates over the non-holomorphic one in the frame function, while the inflation with/without a running kinetic term occurs when both are comparable. Interestingly, the fractional-power potential can be realized by the running kinetic term. We also discuss the implication for the Higgs inflation in supergravity.

• OSTI ID: 22275466
• Journal Information: Journal of Cosmology and Astroparticle Physics, Journal Name: Journal of Cosmology and Astroparticle Physics Journal Issue: 11 Vol. 2010; ISSN 1475-7516
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
79 ASTRONOMY AND ASTROPHYSICS
CHAOS THEORY
COMPARATIVE EVALUATIONS
COSMOLOGY
HIGGS BOSONS
HIGGS MODEL
INFLATIONARY UNIVERSE
INFLATONS
POTENTIALS
SUPERGRAVITY