Nonrelativistic Heavy Quarkonium Model Descended from a Quasi-Particle Approach

Sakai M.; Hirano M.; Katō K.; Matsuda Y.

タイトル	en Nonrelativistic Heavy Quarkonium Model Descended from a Quasi-Particle Approach
作成者	en Sakai, M. en Hirano, M. en Katō, K. NRID 1000020109416 en Matsuda, Y.
アクセス権	open access
権利情報	en This is a post-peer-review, pre-copyedit version of an article published in Few-body systems. The final authenticated version is available online at: https://doi.org/10.1007/s00601-022-01782-w
主題	NDC 420
内容注記	Abstract en A Schr¨odinger-type equation for a heavy quarkonium in terms of the dynamical quark mass is obtained in a quasi-particle (QP) approach by Llanes-Estrada and Cotanch. To observe the relationship between the obtained equation and the constituent quark (potential) model equation, we treat the dynamical quark mass by a constant parameter M and expand the equation in 1/M up to order (1/M). The equation reduces to that of the traditional nonrelativistic constituent quark(CQ) model when a nonlocal interaction is neglected. We investigate the nonrelativistic model where the dynamical quark mass M in the Schr¨odinger-type equation is treated as a free parameter and call it the quasi-quark (QQ) model. To elucidate the role of the nonlocal interaction and to observe the reliability of the QQ model, we studied the charmonium S-wave states.
出版者	en Springer Wien
日付	Issued2023-03
言語	eng
資源タイプ	journal article
出版タイプ	AM
資源識別子	HDL http://hdl.handle.net/2115/91233
関連	isVersionOf DOI https://doi.org/10.1007/s00601-022-01782-w
収録誌情報	PISSN 0177-7963 EISSN 1432-5411 NCID AA1067897X en Few-Body Systems 巻64 号1 開始ページ2
ファイル	fulltext Few-Body Syst 64.pdf 612.44 KB (application/pdf) Issued2023-03
コンテンツ更新日時	2024-03-02