Effects of large threshold corrections in supersymmetric type-I seesaw model
Journal of High Energy Physics 2010 巻 11 号
1-28 頁
2010-11 発行
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ファイル情報(添付) | |
タイトル ( eng ) |
Effects of large threshold corrections in supersymmetric type-I seesaw model
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作成者 |
Kang Sin Kyu
Yokozaki Norimi
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収録物名 |
Journal of High Energy Physics
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巻 | 2010 |
号 | 11 |
開始ページ | 1 |
終了ページ | 28 |
抄録 |
We investigate lepton flavor violating (LFV) radiative processes and the relic abundance of neutralino dark matter in supersymmetric type-I seesaw model. We carefully derive threshold corrections to the flavor off-diagonal elements of slepton mass matrix and up-type Higgs mass squared and find that they can be large in the case of large B-N(0). We examine how the branching ratios of LFV radiative decays and the relic abundance of neutralino dark matter can be significantly affected by the large threshold corrections. Soft scalar mass squared parameter of up-type Higgs scalar is also affected by the threshold corrections. Since the higgsino mass depends on the mass parameter for up-type Higgs, the LFV processes and the relic abundance of the neutralino dark matter are correlated with each other. We show that there are parameter regions where the predictions of the relic abundance of neutralino dark matter are consistent with WMAP observation and the branching ratios of LFV radiative decays are predicted to be testable in future experiments. We find that the masses of scalar supersymmetric particles are not necessarily small so that the branching ratios of LFV decays can be testable in future experiment, which is distinctive feature of this scenario.
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著者キーワード |
Supersymmetry Phenomenology
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NDC分類 |
物理学 [ 420 ]
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言語 |
英語
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資源タイプ | 学術雑誌論文 |
出版者 |
Springer
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発行日 | 2010-11 |
権利情報 |
(c) SISSA 2010
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出版タイプ | Author’s Original(十分な品質であるとして、著者から正式な査読に提出される版) |
アクセス権 | オープンアクセス |
収録物識別子 |
The original publication is available at www.springerlink.com
[ISSN] 1126-6708
[DOI] 10.1007/JHEP11(2010)061
[NCID] AA11380940
[DOI] http://dx.doi.org/10.1007/JHEP11(2010)061
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