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PhysRevD.77.014036.pdf | 368.06 kB | Adobe PDF | 見る/開く |
タイトル: | Quark motional effects on the interquark potential in baryons |
著者: | Yamamoto, Arata Suganuma, Hideo |
著者名の別形: | 菅沼, 秀夫 |
発行日: | 31-Jan-2008 |
出版者: | American Physical Society |
誌名: | Physical Review D |
巻: | 77 |
号: | 1 |
論文番号: | 014036 |
抄録: | We study the heavy-heavy-light quark (QQq) system in a nonrelativistic potential model, and investigate the quark motional effect on the inter-two-quark potential in baryons. We adopt the Hamiltonian with the static three-quark potential which is obtained by the first-principle calculation of lattice QCD, rather than the two-body force in ordinary quark models. Using the renormalization-group inspired variational method in discretized space, we calculate the ground-state energy of QQq systems and the light-quark spatial distribution. We find that the effective string tension between the two heavy quarks is reduced compared to the static three-quark case. This reduction of the effective string tension originates from the geometrical difference between the interquark distance and the flux-tube length, and is conjectured to be a general property for baryons. |
著作権等: | © 2008 American Physical Society |
URI: | http://hdl.handle.net/2433/198858 |
DOI(出版社版): | 10.1103/PhysRevD.77.014036 |
出現コレクション: | 学術雑誌掲載論文等 |
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