Moduli mediation without moduli-induced gravitino problem

Kensuke Akita; Tatsuo Kobayashi; Akane Oikawa; Hajime Otsuka

doi:10.1007/JHEP05(2016)178

Moduli mediation without moduli-induced gravitino problem

Kensuke Akita, Tatsuo Kobayashi, Akane Oikawa, Hajime Otsuka

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

3 Citations (Scopus)

Abstract

Abstract: We study the moduli-induced gravitino problem within the framework of the phenomenologically attractive mirage mediations. The huge amount of gravitino generated by the moduli decay can be successfully diluted by introducing an extra light modulus field which does not induce the supersymmetry breaking. Since the lifetime of extra modulus field becomes longer than usually considered modulus field, our proposed mechanism is applied to both the low- and high-scale supersymmetry breaking scenarios. We also point out that such an extra modulus field appears in the flux compactification of type II string theory.

Original language	English
Article number	178
Journal	Journal of High Energy Physics
Volume	2016
Issue number	5
DOIs	https://doi.org/10.1007/JHEP05(2016)178
Publication status	Published - 2016 May 1

Keywords

Cosmology of Theories beyond the SM
Supergravity Models

ASJC Scopus subject areas

Nuclear and High Energy Physics

Access to Document

10.1007/JHEP05(2016)178

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AU - Akita, Kensuke

AU - Kobayashi, Tatsuo

AU - Oikawa, Akane

AU - Otsuka, Hajime

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N2 - Abstract: We study the moduli-induced gravitino problem within the framework of the phenomenologically attractive mirage mediations. The huge amount of gravitino generated by the moduli decay can be successfully diluted by introducing an extra light modulus field which does not induce the supersymmetry breaking. Since the lifetime of extra modulus field becomes longer than usually considered modulus field, our proposed mechanism is applied to both the low- and high-scale supersymmetry breaking scenarios. We also point out that such an extra modulus field appears in the flux compactification of type II string theory.

AB - Abstract: We study the moduli-induced gravitino problem within the framework of the phenomenologically attractive mirage mediations. The huge amount of gravitino generated by the moduli decay can be successfully diluted by introducing an extra light modulus field which does not induce the supersymmetry breaking. Since the lifetime of extra modulus field becomes longer than usually considered modulus field, our proposed mechanism is applied to both the low- and high-scale supersymmetry breaking scenarios. We also point out that such an extra modulus field appears in the flux compactification of type II string theory.

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KW - Supergravity Models

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