Theoretical study of dense nuclear and neutron-star matter with the precise many-body calculations
| Project/Area Number |
17K14298
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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 | Tokyo University of Science |
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Principal Investigator |
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| Project Period (FY) |
2017-04-01 – 2021-03-31
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| Project Status |
Completed (Fiscal Year 2020)
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| Budget Amount *help |
¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2020: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2019: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2018: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2017: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
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| Keywords | 核物質状態方程式 / 対称エネルギー / （非）対称核物質 / 中性子星 / 理論核物理 / 中性子星物質 / 核物質の状態方程式 |
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| Outline of Final Research Achievements |
Using the relativistic nuclear theory based on high-accuracy many-body calculations, the main purpose in the present study is to understand theoretically physical phenomena concerning resect nuclear terrestrial experiments and astrophysical observations.
It is found that nuclear matter properties including symmetry energy and slope parameter are determined well using the many-body calculations. It is also possible to explain not only the maximum mass and typical radius of neutron stars but also the tidal deformabilities with the unified nuclear equation of state.
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| Academic Significance and Societal Importance of the Research Achievements |
核物質の性質に関する研究や中性子星の特性に関する研究は古くから行われているが、両者を統一的に扱い理解することは理論物理学の悲願である。本研究では、相対論の枠組みの中で多体計算の精度を向上したことにより、両者の統一的な説明が可能となった。さらに、天体観測から得られる情報は、核物質の性質を決定するに当たり非常に重要であることと、多体計算精度の更なる向上が将来的に不可欠であることを示した。
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Report
(5 results)
Research Products
(30 results)
