Item type |
学位論文 / Thesis or Dissertation(1) |
公開日 |
2010-02-22 |
タイトル |
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タイトル |
Lepton Flavor Violation and Physics beyond the Standard Model |
タイトル |
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言語 |
en |
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タイトル |
Lepton Flavor Violation and Physics beyond the Standard Model |
言語 |
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言語 |
eng |
資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_46ec |
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資源タイプ |
thesis |
著者名 |
北野, 龍一郎
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フリガナ |
キタノ, リュウイチロウ
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著者 |
KITANO, Ryuichiro
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学位授与機関 |
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学位授与機関名 |
総合研究大学院大学 |
学位名 |
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学位名 |
博士(理学) |
学位記番号 |
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内容記述タイプ |
Other |
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内容記述 |
総研大甲第580号 |
研究科 |
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値 |
数物科学研究科 |
専攻 |
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値 |
14 素粒子原子核専攻 |
学位授与年月日 |
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学位授与年月日 |
2002-03-22 |
学位授与年度 |
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2001 |
要旨 |
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内容記述タイプ |
Other |
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内容記述 |
We studied lepton flavor violation in physics beyond the standard model. Especially in the Randall-Sundrum type extra-dimension scenario, we showed that the μ→ eγ decay branching ratio becomes large. The loop diagrams mediated by Kaluza-Klein modes of the bulk neutrinos, which are introduced so as to generate tiny neutrino masses, are large and we obtained a severe constraint on the mass of the lowest Kaluza-Klein mode i.e. mKK〓25TeV. For the τ lepton physics, we analyzed P and CP violation of τ decays in model independent way. We calculated the differential cross sections of the processes in which one of the pair created τ particles at an e+e- collider decays into lepton flavor violating final states e.g. τ → μγ, τ → 3μ, τ → μee. Using the correlations between angular distributions of both sides of τ decays, we can obtain information on parity and CP violations of lepton flavor non-conserving interactions. We also studied the muon-electron conversion process in nuclei. With values in this thesis, we can calculate the μ-e conversion rate in any models for each nucleus. We find that the conversion branching ratio has a tendency that it is larger in the nuclei with moderate atomic number than that in light or heavy nuclei. |
所蔵 |
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値 |
有 |
フォーマット |
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内容記述タイプ |
Other |
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内容記述 |
application/pdf |