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新山 雅之 所属 京都産業大学 理学部 物理科学科 職種 教授 |
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| 言語種別 | 英語 |
| 発行・発表の年月 | 2014/03 |
| 形態種別 | 研究論文 |
| 査読 | 査読あり |
| 標題 | A SEARCH FOR phi MESON NUCLEUS BOUND STATE USING ANTIPROTON ANNIHILATION ON NUCLEUS |
| 執筆形態 | その他 |
| 掲載誌名 | ACTA PHYSICA POLONICA B |
| 出版社・発行元 | WYDAWNICTWO UNIWERSYTETU JAGIELLONSKIEGO |
| 巻・号・頁 | 45(3),pp.819-826 |
| 著者・共著者 | H. Ohnishi,M. Iwasaki,F. Sakuma,S. Yokkaichi,P. Buehler,O. Hartmann,T. Ishiwatari,J. Marton,K. Suzuki,E. Widmann,J. Zmeskal,C. Curceanu,C. Guaraldo,S. Okada,A. Romero Vidal,D. Sirghi,F. Sirghi,O. Vazquez Doce,K. Hicks,R. Muto,M. Naruki,S. Sawada,M. Niiyama,H. Noumi,A. Sakaguchi,K. Tsukada |
| 概要 | The mass shift of the vector mesons in nuclei is known to be a powerful tool for investigating the mechanism of generating hadron mass from the QCD vacuum. The mechanism is known to be the spontaneous breaking of chiral symmetry. One of the approach to investigate spontaneous breaking of chiral symmetry in nuclear media is formation of meson nucleus bound state and measurring energy level of the state which will be a direct connection to the <(q) over barq > expectation value in nucleus. We propose the experiment to study in-medium mass modification of the phi. meson using the formation of phi-meson bound state at J-PARC/Japan. We demonstrate that a clear missing-mass spectrum can be obtained efficiently by ((p) over bar, phi) spectroscopy together with the A tagging, using the primary reaction channel (p) over barp phi phi. A systematic study over several nuclear targets will yield a unique, definitive and precise determination of the in-medium mass modification of the vector meson phi(s (s) over bar). This paper gives an overview of the physics motivation and the detector concept, and explains the direction of the initial research and development effort. |
| DOI | 10.5506/APhysPolB.45.819 |
| ISSN | 0587-4254/1509-5770 |
| Put Code(ORCID) | 34468234 |
| PermalinkURL | http://orcid.org/0000-0002-3460-9469 |