書誌事項
- 公開日
- 2014-07
- 資源種別
- journal article
- DOI
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- 10.1007/jhep07(2014)018
- 10.48550/arxiv.1403.7066
- 公開者
- Springer Science and Business Media LLC
説明
We propose a new geometric mechanism for naturally realizing unparallel three families of flavors in string theory, using the framework of F-theory. We consider a set of coalesced local 7-branes of a particular Kodaira singularity type and allow some of the branes to bend and separate from the rest, so that they meet only at an intersection point. Such a local configuration can preserve supersymmetry. Its matter spectrum is investigated by studying string junctions near the intersection, and shown to coincide, after an orbifold projection, with that of a supersymmetric coset sigma model whose target space is a homogeneous Kahler manifold associated with a corresponding painted Dynkin diagram. In particular, if one starts from the E7 singularity, one obtains the E7/(SU(5)xU(1)^3) model yielding precisely three generations with an unparallel family structure. Possible applications to string phenomenology are also discussed.
38 pages, 11 figures; v3: references and comments added, typos corrected, version published in JHEP
収録刊行物
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- Journal of High Energy Physics
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Journal of High Energy Physics 2014 (7), 018-, 2014-07
Springer Science and Business Media LLC
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キーワード
詳細情報 詳細情報について
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- CRID
- 1360004231127944448
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- ISSN
- 10298479
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- 資料種別
- journal article
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- データソース種別
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- Crossref
- KAKEN
- OpenAIRE