Anomaly-induced inflaton decay and gravitino-overproduction problem

Motoi Endo; Fuminobu Takahashi; T. T. Yanagida

doi:10.1016/j.physletb.2007.09.019

Anomaly-induced inflaton decay and gravitino-overproduction problem

Motoi Endo, Fuminobu Takahashi, T. T. Yanagida

SCI - Physics

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

84 Citations (Scopus)

Abstract

We point out that the inflaton spontaneously decays into any gauge bosons and gauginos via the super-Weyl, Kähler and sigma-model anomalies in supergravity, once the inflaton acquires a non-vanishing vacuum expectation value. In particular, in the dynamical supersymmetry breaking scenarios, the inflaton necessarily decays into the supersymmetry breaking sector, if the inflaton mass is larger than the dynamical scale. This generically causes the overproduction of the gravitinos, which severely constrains the inflation models.

Original language	English
Pages (from-to)	236-240
Number of pages	5
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	658
Issue number	5
DOIs	https://doi.org/10.1016/j.physletb.2007.09.019
Publication status	Published - 2008 Jan 10

ASJC Scopus subject areas

Nuclear and High Energy Physics

Access to Document

10.1016/j.physletb.2007.09.019

Fingerprint Dive into the research topics of 'Anomaly-induced inflaton decay and gravitino-overproduction problem'. Together they form a unique fingerprint.

Cite this

@article{0db6a6cf8ba44b67992124813a8e2e68,

title = "Anomaly-induced inflaton decay and gravitino-overproduction problem",

abstract = "We point out that the inflaton spontaneously decays into any gauge bosons and gauginos via the super-Weyl, K{\"a}hler and sigma-model anomalies in supergravity, once the inflaton acquires a non-vanishing vacuum expectation value. In particular, in the dynamical supersymmetry breaking scenarios, the inflaton necessarily decays into the supersymmetry breaking sector, if the inflaton mass is larger than the dynamical scale. This generically causes the overproduction of the gravitinos, which severely constrains the inflation models.",

author = "Motoi Endo and Fuminobu Takahashi and Yanagida, {T. T.}",

year = "2008",

month = jan,

day = "10",

doi = "10.1016/j.physletb.2007.09.019",

language = "English",

volume = "658",

pages = "236--240",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

publisher = "Elsevier",

number = "5",

}

TY - JOUR

T1 - Anomaly-induced inflaton decay and gravitino-overproduction problem

AU - Endo, Motoi

AU - Takahashi, Fuminobu

AU - Yanagida, T. T.

PY - 2008/1/10

Y1 - 2008/1/10

N2 - We point out that the inflaton spontaneously decays into any gauge bosons and gauginos via the super-Weyl, Kähler and sigma-model anomalies in supergravity, once the inflaton acquires a non-vanishing vacuum expectation value. In particular, in the dynamical supersymmetry breaking scenarios, the inflaton necessarily decays into the supersymmetry breaking sector, if the inflaton mass is larger than the dynamical scale. This generically causes the overproduction of the gravitinos, which severely constrains the inflation models.

AB - We point out that the inflaton spontaneously decays into any gauge bosons and gauginos via the super-Weyl, Kähler and sigma-model anomalies in supergravity, once the inflaton acquires a non-vanishing vacuum expectation value. In particular, in the dynamical supersymmetry breaking scenarios, the inflaton necessarily decays into the supersymmetry breaking sector, if the inflaton mass is larger than the dynamical scale. This generically causes the overproduction of the gravitinos, which severely constrains the inflation models.

UR - http://www.scopus.com/inward/record.url?scp=37549038695&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=37549038695&partnerID=8YFLogxK

U2 - 10.1016/j.physletb.2007.09.019

DO - 10.1016/j.physletb.2007.09.019

M3 - Article

AN - SCOPUS:37549038695

VL - 658

SP - 236

EP - 240

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

SN - 0370-2693

IS - 5

ER -