Nonrelativistic Heavy Quarkonium Model Descended from a Quasi-Particle Approach
Nonrelativistic Heavy Quarkonium Model Descended from a Quasi-Particle Approach
复制标题
由准粒子方法推导出的非相对论重夸克模型
DOI:
10.1007/s00601-022-01782-w
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发表时间:
2022
期刊:
影响因子:
1.6
通讯作者:
Matsuda Y.
中科院分区:
文献类型:
--
作者:
Sakai M.;Hirano M.;Kato K.;Matsuda Y.
A Schrödinger-type equation for a heavy quarkonium in terms of the dynamical quark mass is obtained in a quasi-particle 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 parameterMand expand the equation in 1/Mup to order (1/M). The equation reduces to that of the traditional nonrelativistic constituent quark model when a nonlocal interaction is neglected. We investigate the nonrelativistic model where the dynamical quark massMin the Schrödinger-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 charmoniumS-wave states.
DOI:
10.1007/978-1-4684-7221-9_10
发表时间:
1976
期刊:
影响因子:
--
作者:
R. Barbieri
通讯作者:
R. Barbieri
DOI:
--
发表时间:
1984
期刊:
影响因子:
--
作者:
S. Adler;A. Davis
通讯作者:
A. Davis