| Project/Area Number |
22540287
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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 | University of the Ryukyus |
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Principal Investigator |
ODA Ichiro 琉球大学, 理学部, 教授 (40265517)
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| Co-Investigator(Kenkyū-buntansha) |
URYU Koji 琉球大学, 理学部, 教授 (40457693)
MAENO Masahiro 琉球大学, 理学部, 准教授 (30222285)
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| Project Period (FY) |
2010 – 2012
|
| Project Status |
Completed (Fiscal Year 2012)
|
| Budget Amount *help |
¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2012: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2011: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2010: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
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| Keywords | 素粒子(理論) / 重力理論 / 質量を持つ重力子 / 量子重力理論 / 重力のヒッグス機構 / 有質量の重力子 / 超弦理論 / 超光速ニュートリノ / 量子重力 |
|---|
| Research Abstract |
In this study, we have investigated a mechanism to give a mass to the graviton which mediates the gravitational interaction. In the Einstein’ s general relativity, the graviton has the vanishing mass. However, it has been pointed out by superstring theories and cosmology that the graviton might have the non-vanishing mass. We have succeeded in making the graviton massive via spontaneous symmetry breakdown of general coordinate invariance. Our study would have some applications in elementary particle physics and cosmology in future.
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