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Title: Impacts of supersymmetric higher derivative terms on inflation models in supergravity

Abstract

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.

Authors:
;  [1]
  1. Department of Physics, Waseda University,Tokyo 169-8555 (Japan)
Publication Date:
Sponsoring Org.:
SCOAP3, CERN, Geneva (Switzerland)
OSTI Identifier:
22454568
Resource Type:
Journal Article
Journal Name:
Journal of Cosmology and Astroparticle Physics
Additional Journal Information:
Journal Volume: 2015; Journal 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); Journal ID: ISSN 1475-7516
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; COSMOLOGICAL INFLATION; SUPERGRAVITY; SUPERSYMMETRY

Citation Formats

Aoki, Shuntaro, and Yamada, Yusuke. Impacts of supersymmetric higher derivative terms on inflation models in supergravity. United States: N. p., 2015. Web. doi:10.1088/1475-7516/2015/07/020.
Aoki, Shuntaro, & Yamada, Yusuke. Impacts of supersymmetric higher derivative terms on inflation models in supergravity. United States. doi:10.1088/1475-7516/2015/07/020.
Aoki, Shuntaro, and Yamada, Yusuke. Tue . "Impacts of supersymmetric higher derivative terms on inflation models in supergravity". United States. doi:10.1088/1475-7516/2015/07/020.
@article{osti_22454568,
title = {Impacts of supersymmetric higher derivative terms on inflation models in supergravity},
author = {Aoki, Shuntaro and Yamada, Yusuke},
abstractNote = {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.},
doi = {10.1088/1475-7516/2015/07/020},
journal = {Journal of Cosmology and Astroparticle Physics},
issn = {1475-7516},
number = 07,
volume = 2015,
place = {United States},
year = {2015},
month = {7}
}