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| ファイル | 記述 | サイズ | フォーマット | |
|---|---|---|---|---|
| PhysRevLett.127.072003.pdf | 1.33 MB | Adobe PDF | 見る/開く |
| タイトル: | Dibaryon with Highest Charm Number near Unitarity from Lattice QCD |
| 著者: | Lyu, Yan Tong, Hui Sugiura, Takuya Aoki, Sinya Doi, Takumi Hatsuda, Tetsuo Meng, Jie Miyamoto, Takaya |
| 著者名の別形: | リュ―, ヤン トン, フイ 杉浦, 拓也 青木, 慎也 土井, 琢身 初田, 哲男 孟, 杰 宮本, 貴也 |
| キーワード: | Hadron-hadron interactions Lattice QCD Particles & Fields Nuclear Physics |
| 発行日: | Aug-2021 |
| 出版者: | American Physical Society (APS) |
| 誌名: | Physical Review Letters |
| 巻: | 127 |
| 号: | 7 |
| 論文番号: | 072003 |
| 抄録: | A pair of triply charmed baryons, ΩcccΩccc, is studied as an ideal dibaryon system by (2+1)-flavor lattice QCD with nearly physical light-quark masses and the relativistic heavy-quark action with the physical charm quark mass. The spatial baryon-baryon correlation is related to their scattering parameters on the basis of the HAL QCD method. The ΩcccΩccc in the ¹S₀ channel, taking into account the Coulomb repulsion with the charge form factor of Ωccc, leads to the scattering length a[C][0]≃−19 fm and the effective range r[C][eff]≃0.45 fm. The ratio r[C][eff]/a[C][0]≃−0.024, whose magnitude is considerably smaller than that of the dineutron (−0.149), indicates that ΩcccΩccc is located in the unitary regime. |
| 記述: | スパコンで予言する魅惑の新粒子「チャームダイオメガ」 --クォーク6個状態の謎の解明に新たな1ページが加わる--. 京都大学プレスリリース. 2021-08-30. |
| 著作権等: | Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP³. |
| URI: | http://hdl.handle.net/2433/265092 |
| DOI(出版社版): | 10.1103/PhysRevLett.127.072003 |
| PubMed ID: | 34459647 |
| 関連リンク: | https://www.kyoto-u.ac.jp/ja/research-news/2021-08-30-0 |
| 出現コレクション: | 学術雑誌掲載論文等 |
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