Disappearing inflaton potential

Naoya Kitajima

Disappearing inflaton potential

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Inflaton potential may disappear by heavy field dynamics I. Chaotic inflation in SUGRA - Mass parameter is promoted to be a dynamical field: S - <S> ≠ 0 during inflation & <S> = 0 after inflation, and then inflaton becomes (almost) massless. => Dark matter / dark radiation / searched by some experiments II. New inflation in SUGRA - Inflaton may return to the origin after reheating and rolls down to the electroweak vacuum => Inflaton can be MSSM Higgs field.

Original language	English
Title of host publication	Proceedings of the 25th Workshop on General Relativity and Gravitation in Japan, JGRG 2015
Publisher	Kyoto University, Yukawa Institute for Theoretical Physics
Pages	908-922
Number of pages	15
ISBN (Electronic)	9780000000002
Publication status	Published - 2015
Externally published	Yes
Event	25th Workshop on General Relativity and Gravitation in Japan, JGRG 2015 - Kyoto, Japan Duration: 2015 Dec 7 → 2015 Dec 11

Publication series

Name	Proceedings of the 25th Workshop on General Relativity and Gravitation in Japan, JGRG 2015
Volume	4

Conference

Conference	25th Workshop on General Relativity and Gravitation in Japan, JGRG 2015
Country/Territory	Japan
City	Kyoto
Period	15/12/7 → 15/12/11

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

Cite this

Disappearing inflaton potential. / Kitajima, Naoya.
Proceedings of the 25th Workshop on General Relativity and Gravitation in Japan, JGRG 2015. Kyoto University, Yukawa Institute for Theoretical Physics, 2015. p. 908-922 (Proceedings of the 25th Workshop on General Relativity and Gravitation in Japan, JGRG 2015; Vol. 4).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Kitajima, N 2015, Disappearing inflaton potential. in Proceedings of the 25th Workshop on General Relativity and Gravitation in Japan, JGRG 2015. Proceedings of the 25th Workshop on General Relativity and Gravitation in Japan, JGRG 2015, vol. 4, Kyoto University, Yukawa Institute for Theoretical Physics, pp. 908-922, 25th Workshop on General Relativity and Gravitation in Japan, JGRG 2015, Kyoto, Japan, 15/12/7.

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author = "Naoya Kitajima",

note = "Publisher Copyright: {\textcopyright} Proceedings of the 25th Workshop on General Relativity and Gravitation in Japan, JGRG 2015. All rights reserved.; 25th Workshop on General Relativity and Gravitation in Japan, JGRG 2015 ; Conference date: 07-12-2015 Through 11-12-2015",

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AB - Inflaton potential may disappear by heavy field dynamics I. Chaotic inflation in SUGRA - Mass parameter is promoted to be a dynamical field: S - <S> ≠ 0 during inflation & <S> = 0 after inflation, and then inflaton becomes (almost) massless. => Dark matter / dark radiation / searched by some experiments II. New inflation in SUGRA - Inflaton may return to the origin after reheating and rolls down to the electroweak vacuum => Inflaton can be MSSM Higgs field.

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Disappearing inflaton potential

Abstract

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ASJC Scopus subject areas

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