Heavy quark potential and quarkonium spectrum with nonperturbative pNRQCD
Heavy quark potential and quarkonium spectrum with nonperturbative pNRQCD
复制标题
非微扰 pNRQCD 的重夸克势和夸克素谱
DOI：
10.1007/s00601-012-0542-8
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发表时间：
2013
期刊：
影响因子：
1.6
通讯作者：
Miho Koma
中科院分区：
文献类型：
--
作者：
Yoshiaki Koma;Miho Koma
本文系统地研究了势非相对论QCD中的调和铵质谱和底铵质谱，并用晶格QCD模拟计算了重夸克势。势由静态势和按重夸克质量逆幂分类的相对论修正组成，并系统地考察了theO（1/m）修正、theO（1/m2）自旋轨道修正和自旋张量修正对质谱的影响。质谱图与实验数据吻合较好，其中西奥（1/m）的修正有重要贡献。
The charmonium and bottomonium mass spectra are investigated systematically in potential nonrelativistic QCD with the heavy quark potential computed by lattice QCD simulations nonperturbatively. The potential consists of a static potential and relativistic corrections classified in powers of the inverse of heavy quark massm, and the effects of theO(1/m) correction, theO(1/m2) spin–orbit and spin–tensor corrections on the mass spectra are examined systematically. The pattern of the mass spectra is found to be in fairly good agreement with the experimental data, in which theO(1/m) correction gives an important contribution.