2012 Fiscal Year Final Research Report
Hadrons in nuclei and chiral symmetry in quantum chromodynamics
| Project/Area Number |
22740161
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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 | Kyoto University |
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Principal Investigator |
JIDO Daisuke 京都大学, 基礎物理学研究所, 助教 (30402811)
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| Research Collaborator |
GODA Soichiro 京都大学, 理学研究科, 大学院生
SAKAI Shuntaro 京都大学, 理学研究科, 大学院生
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| Project Period (FY) |
2010 – 2012
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| Keywords | 原子核(理論) / ハドロン物理学 / カイラル対称性 / 中間子原子核 / η'中間子 |
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| Research Abstract |
The phenomenon of the spontaneous breakdown of chiral symmetry in the QCD vacuum was studied in the aspect of partial restoration of chiral symmetry in nuclear medium. To study the partial restoration, an in-medium chiral effective theory wasdeveloped. The quark condensate and the pion properties in the nuclear medium werecalculated beyond the linear density approximation. The η’ meson in nuclear medium was discussed in the viewpoint of partial restoration of chiral symmetry. It was shown that the η’ meson could have a strong attractive potential in nucleus.
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