2010 Fiscal Year Final Research Report
Exotics in the nuclear system with strangeness
| Project/Area Number |
19740163
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Particle/Nuclear/Cosmic ray/Astro physics
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| Research Institution | High Energy Accelerator Research Organization |
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Principal Investigator |
DOTE Akinobu 大学共同利用機関法人高エネルギー加速器研究機構, 素粒子原子核研究所, 助教 (90450361)
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| Project Period (FY) |
2007 – 2010
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| Keywords | 軽い原子核 / ストレンジネス / Ｋ中間子原子核 / エキゾチック / ハイパー核 |
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| Research Abstract |
“Kaonic nuclei” which mean nuclei with anti-kaon containing a strangeness quark are considered to have exotic properties such as highly dense state. In order to reveal the nature of kaonic nuclei, we have investigated the most essential kaonic nucleus “K^-pp” (a system consist of a K^-meson and two protons) theoretically with a little approximation. As a result, it is found that the very strong repulsion between two nucleons prevents two protons getting close to each other, in spite that the strong attraction from K^-meson makes them approach to each other. The distance between two protons in K^-pp is confirmed to be nearly equal to that for a normal nucleus. Therefore, we consider that the K^-pp is a state with the normal density, not highly dense.
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