Modulus D-term inflation

Kenji Kadota; Tatsuo Kobayashi; Ikumi Saga; Keigo Sumita

doi:10.1007/JHEP04(2018)034

Modulus D-term inflation

Kenji Kadota^*, Tatsuo Kobayashi, Ikumi Saga, Keigo Sumita

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

Abstract

We propose a new model of single-field D-term inflation in supergravity, where the inflation is driven by a single modulus field which transforms non-linearly under the U(1) gauge symmetry. One of the notable features of our modulus D-term inflation scenario is that the global U(1) remains unbroken in the vacuum and hence our model is not plagued by the cosmic string problem which can exclude most of the conventional D-term inflation models proposed so far due to the CMB observations.

Original language	English
Article number	34
Journal	Journal of High Energy Physics
Volume	2018
Issue number	4
DOIs	https://doi.org/10.1007/JHEP04(2018)034
Publication status	Published - 2018 Apr 1

Keywords

Cosmology of Theories beyond the SM
String theory and cosmic strings

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1007/JHEP04(2018)034

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abstract = "We propose a new model of single-field D-term inflation in supergravity, where the inflation is driven by a single modulus field which transforms non-linearly under the U(1) gauge symmetry. One of the notable features of our modulus D-term inflation scenario is that the global U(1) remains unbroken in the vacuum and hence our model is not plagued by the cosmic string problem which can exclude most of the conventional D-term inflation models proposed so far due to the CMB observations.",

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author = "Kenji Kadota and Tatsuo Kobayashi and Ikumi Saga and Keigo Sumita",

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AU - Saga, Ikumi

AU - Sumita, Keigo

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N2 - We propose a new model of single-field D-term inflation in supergravity, where the inflation is driven by a single modulus field which transforms non-linearly under the U(1) gauge symmetry. One of the notable features of our modulus D-term inflation scenario is that the global U(1) remains unbroken in the vacuum and hence our model is not plagued by the cosmic string problem which can exclude most of the conventional D-term inflation models proposed so far due to the CMB observations.

AB - We propose a new model of single-field D-term inflation in supergravity, where the inflation is driven by a single modulus field which transforms non-linearly under the U(1) gauge symmetry. One of the notable features of our modulus D-term inflation scenario is that the global U(1) remains unbroken in the vacuum and hence our model is not plagued by the cosmic string problem which can exclude most of the conventional D-term inflation models proposed so far due to the CMB observations.

KW - Cosmology of Theories beyond the SM

KW - String theory and cosmic strings

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JF - Journal of High Energy Physics

IS - 4

M1 - 34

ER -

Modulus D-term inflation

Abstract

Keywords

ASJC Scopus subject areas

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