| Project/Area Number |
25400286
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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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 | 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, 研究機関講師 (90450361)
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| Project Period (FY) |
2013-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2015: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2013: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
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| Keywords | Ｋ中間子原子核 / ストレンジクォーク / ハドロン少数多体系 / 共鳴状態 / 結合チャネル / チャームクォーク / ストレンジネス核物理 / Ｋ－中間子原子核 / 少数系 / K－中間子原子核 |
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| Outline of Final Research Achievements |
Mesic nuclei (nuclear systems with mesons) involving strange and charm of the second-generation quarks are expected to have so exotic nature that has not been seen in ordinary nuclei which are composed of the first-generation quarks (up and down). Among them, especially in in the strange-quark sector, the most interesting system is so-called“kaonic nucleus”which means a nucleus with antikaons (K-, K0bar mesons). Since antikaon causes a strong attraction in a nucleus, kaonic nuclei might be a highly dense object. Those density could amount to several times higher than normal nuclear density.
In this project, we have investigated the most essential kaonic nucleus“K-pp”(composing of a K- meson and two protons) precisely, using a novel theoretical method which overcomes all difficulties in the treatment of resonance state, coupled-channel problem and wave function. As a result, we have revealed the detailed nature of“K-pp”and confirmed that kaonic nuclei could form a dense state.
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