Charged Q-ball dark matter from B and L direction

Jeong Pyong Hong; Masahiro Kawasaki; Masaki Yamada

doi:10.1088/1475-7516/2016/08/053

Charged Q-ball dark matter from B and L direction

Jeong Pyong Hong, Masahiro Kawasaki, Masaki Yamada

FRIS - Core Interdisciplinary Research Section

The University of Tokyo

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

7 Citations (Scopus)

Abstract

We consider nearly equal number of gauge mediation type charged (anti-) Q-balls with charge of ±α^-1 ∼ ±137 well before the BBN epoch and discussed how they evolve in time. We found that ion-like objects with electric charges of +O(1) are likely to become relics in the present universe, which we expect to be the dark matter. These are constrained by MICA experiment, where the trail of heavy atom-like or ion-like object in 10⁹ years old ancient mica crystals is not observed. We found that the allowed region for gauge mediation model parameter and reheating temperature have to be smaller than the case of the neutral Q-ball dark matter.

Original language	English
Article number	053
Journal	Journal of Cosmology and Astroparticle Physics
Volume	2016
Issue number	8
DOIs	https://doi.org/10.1088/1475-7516/2016/08/053
Publication status	Published - 2016 Aug 24

Keywords

dark matter theory
physics of the early universe
supersymmetry and cosmology

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10.1088/1475-7516/2016/08/053

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abstract = "We consider nearly equal number of gauge mediation type charged (anti-) Q-balls with charge of ±α-1 ∼ ±137 well before the BBN epoch and discussed how they evolve in time. We found that ion-like objects with electric charges of +O(1) are likely to become relics in the present universe, which we expect to be the dark matter. These are constrained by MICA experiment, where the trail of heavy atom-like or ion-like object in 109 years old ancient mica crystals is not observed. We found that the allowed region for gauge mediation model parameter and reheating temperature have to be smaller than the case of the neutral Q-ball dark matter.",

keywords = "dark matter theory, physics of the early universe, supersymmetry and cosmology",

author = "Hong, {Jeong Pyong} and Masahiro Kawasaki and Masaki Yamada",

note = "Funding Information: This work is supported by MEXT KAKENHI Grand Number 15H05889 (M.K.) and JSPS KAKENHI Grand Number 25400248 (M.K.), World Premier International Research Cen- ter Initiative (WPI Initiative), MEXT, Japan, and the Program for the Leading Graduate Schools, MEXT, Japan (M.Y.). M.Y. acknowledges the support by JSPS Research Fellow- ships for Young Scientists, No.25.871",

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AU - Hong, Jeong Pyong

AU - Kawasaki, Masahiro

AU - Yamada, Masaki

N1 - Funding Information: This work is supported by MEXT KAKENHI Grand Number 15H05889 (M.K.) and JSPS KAKENHI Grand Number 25400248 (M.K.), World Premier International Research Cen- ter Initiative (WPI Initiative), MEXT, Japan, and the Program for the Leading Graduate Schools, MEXT, Japan (M.Y.). M.Y. acknowledges the support by JSPS Research Fellow- ships for Young Scientists, No.25.871

PY - 2016/8/24

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N2 - We consider nearly equal number of gauge mediation type charged (anti-) Q-balls with charge of ±α-1 ∼ ±137 well before the BBN epoch and discussed how they evolve in time. We found that ion-like objects with electric charges of +O(1) are likely to become relics in the present universe, which we expect to be the dark matter. These are constrained by MICA experiment, where the trail of heavy atom-like or ion-like object in 109 years old ancient mica crystals is not observed. We found that the allowed region for gauge mediation model parameter and reheating temperature have to be smaller than the case of the neutral Q-ball dark matter.

AB - We consider nearly equal number of gauge mediation type charged (anti-) Q-balls with charge of ±α-1 ∼ ±137 well before the BBN epoch and discussed how they evolve in time. We found that ion-like objects with electric charges of +O(1) are likely to become relics in the present universe, which we expect to be the dark matter. These are constrained by MICA experiment, where the trail of heavy atom-like or ion-like object in 109 years old ancient mica crystals is not observed. We found that the allowed region for gauge mediation model parameter and reheating temperature have to be smaller than the case of the neutral Q-ball dark matter.

KW - dark matter theory

KW - physics of the early universe

KW - supersymmetry and cosmology

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JF - Journal of Cosmology and Astroparticle Physics

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ER -

Charged Q-ball dark matter from B and L direction

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