Impacts of supersymmetric higher derivative terms on inflation models in supergravity

Journal Article · Tue Jul 14 00:00:00 EDT 2015 · Journal of Cosmology and Astroparticle Physics

DOI:https://doi.org/10.1088/1475-7516/2015/07/020· OSTI ID:22454568

Aoki, Shuntaro; Yamada, Yusuke ^[1]

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1. Department of Physics, Waseda University,Tokyo 169-8555 (Japan)

We show the effects of supersymmetric higher derivative terms on inflation models in supergravity. The results show that such terms generically modify the effective kinetic coefficient of the inflaton during inflation if the cut off scale of the higher derivative operators is sufficiently small. In such a case, the η-problem in supergravity does not occur, and we find that the effective potential of the inflaton generically becomes a power type potential with a power smaller than two.

• Sponsoring Organization: SCOAP3, CERN, Geneva (Switzerland)
• OSTI ID: 22454568
• Journal Information: Journal of Cosmology and Astroparticle Physics, Vol. 2015, Issue 07; Other Information: PUBLISHER-ID: JCAP07(2015)020; OAI: oai:repo.scoap3.org:11076; Article funded by SCOAP3. Content from this work may be used under the terms of the Creative Commons Attribution 3.0 License. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.; Country of input: International Atomic Energy Agency (IAEA); ISSN 1475-7516
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COSMOLOGICAL INFLATION
SUPERGRAVITY
SUPERSYMMETRY