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Solving cosmological problem in universal extra dimension models by introducing Dirac neutrino
https://sucra.repo.nii.ac.jp/records/13154
https://sucra.repo.nii.ac.jp/records/131548604f2c7-ce8d-4486-b967-ec41b90a449f
名前 / ファイル | ライセンス | アクション |
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A1002479.pdf (187.2 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2008-03-12 | |||||
タイトル | ||||||
タイトル | Solving cosmological problem in universal extra dimension models by introducing Dirac neutrino | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
著者 |
Matsumoto, Shigeki
× Matsumoto, Shigeki× 佐藤, 丈× Senami, Masato× Yamanaka, Masato |
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著者 ローマ字 | ||||||
Matsumoto, Shigeki | ||||||
著者 ローマ字 | ||||||
Sato, Joe | ||||||
著者 ローマ字 | ||||||
Senami, Masato | ||||||
著者 ローマ字 | ||||||
Yamanaka, Masato | ||||||
著者 所属 | ||||||
著者 所属 | ||||||
埼玉大学理学部物理学科 | ||||||
著者 所属(別言語) | ||||||
Theory Group, KEK | ||||||
著者 所属(別言語) | ||||||
Department of Physics, Saitama University | ||||||
著者 所属(別言語) | ||||||
ICRR, University of Tokyo | ||||||
著者 所属(別言語) | ||||||
Department of Physics, Saitama University | ||||||
書誌情報 |
PHYSICS LETTERS B 巻 647, 号 5-6, p. 466-471, 発行日 2007 |
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年月次 | ||||||
2007-4 | ||||||
出版者名 | ||||||
出版者 | ELSEVIER SCIENCE BV, | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 03702693 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | info:doi/10.1016/j.physletb.2007.02.033 | |||||
関連サイト | ||||||
内容記述タイプ | Other | |||||
内容記述 | http://www.sciencedirect.com/science/journal/03702693 | http://www.sciencedirect.com/science/journal/03702693 | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Universal extra dimension (UED) models with right-handed neutrinos are studied. The introduction of the neutrinos makes us possible not only to describe Dirac neutrino masses but also to solve the cosmological problem called the KK graviton problem. This problem is essentially caused by the late time decay of a KK photon into a KK graviton and a photon, and it distorts the spectrum of the cosmic microwave background or the diffuse photon. We point out that, once we introduce right-handed neutrinos to UED models, the KK photon decays dominantly into neutrinos and does not emit a photon. We also discuss sub-dominant modes with a photon in the decay quantitatively, and show that their branching ratios are so small that the spectra are not distorted. (c) 2007 Elsevier B.V. All rights reserved. | |||||
版 | ||||||
[プレプリント] | ||||||
資源タイプ | ||||||
内容記述タイプ | Other | |||||
内容記述 | text | |||||
フォーマット | ||||||
内容記述タイプ | Other | |||||
内容記述 | application/pdf | |||||
作成日 | ||||||
日付 | 2008-03-11 | |||||
日付タイプ | Created | |||||
アイテムID | ||||||
A1002479 |