Study on matter creation and production of density perturbation in the universe based on the particle theories beyond the standard model
| Project/Area Number |
23740206
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Particle/Nuclear/Cosmic ray/Astro physics
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| Research Institution | Kanagawa University |
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Principal Investigator |
SHINTA Kasuya 神奈川大学, 理学部, 准教授 (00386806)
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| Project Period (FY) |
2011-04-28 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2014: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2013: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2012: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2011: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Keywords | 暗黒物質 / バリオン数 / 超対称性 / インフレーション / 宇宙のバリオン数 / 密度揺らぎ |
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| Outline of Final Research Achievements |
This research studies the production of matter-antimatter asymmetry, the dark matter, and the density perturbation, which leads to the production of the large-scale structure of the universe, by the scalar field called the Affleck-Dine field in supersymmetric theory. In particular, in the gauge-mediated superysymmetry breaking, we propose the scenarios that explain both the baryon asymmetry and the dark matter of the universe, which the latter could be gravitinos or Q balls. On the other hand, we construct the high-scale inflation model with the Affleck-Dine field as the inflaton, and could explain both the density perturbation and the baryon asymmetry of the universe.
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Report
(5 results)
Research Products
(11 results)
