2009 Fiscal Year Final Research Report
Generation of Universe Baryon Asymmetry and Breaking of Supersymmetry
| Project/Area Number |
19540270
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Particle/Nuclear/Cosmic ray/Astro physics
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| Research Institution | The University of Tokyo |
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Principal Investigator |
YANAGIDA Tsutomu The University of Tokyo, 数物連携宇宙研究機構, 特任教授 (10125677)
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| Project Period (FY) |
2007 – 2009
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| Keywords | 宇宙のバリオン数生成 / レプトジェネシス機構 / 右巻きニュートリノ / 超対称性 / 超対称性の破れ |
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| Research Abstract |
The main purpose of this research project is to construct a supersymmetry breaking model which is consistent with the leptogenesis mechanism explaining the observed universe's matter number. The candidate for the model is a model which predicts garvitino mass smaller than 16 eV. It was extremely important that we observed a new dynamical mechanism for supersymmetry breaking. This new mechanism is based on a vector-like gauge theory and this theory becomes a conformal gauge theory at high energies. Thanks to our observation of the new supersymmetry breaking mechanism, we succeeded to construct a model with the light garvitino.
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