Variational study of weakly coupled triply heavy baryons
Variational study of weakly coupled triply heavy baryons
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DOI：
10.1088/1126-6708/2006/10/073
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发表时间：
2006-07
影响因子：
5.4
通讯作者：
Yu Jia
中科院分区：
文献类型：
--
作者：
Yu Jia
当所有夸克都足够重以至于典型的动量传递远大于ΛQCD时，由三个重夸克组成的重子就会变得弱耦合。我们使用变分法来估计最低 bcc、ccc、bbb 和 bbc 态的质量，假设它们是库仑束缚态。我们对这些状态的预测系统地低于 Bjorken 很久以前做出的预测，但仍然与 QCD 中已知的质量不等式兼容。
Baryons made of three heavy quarks become weakly coupled, when all the quarks are sufficiently heavy such that the typical momentum transfer is much larger than ΛQCD. We use variational method to estimate masses of the lowest-lying bcc, ccc, bbb and bbc states by assuming they are Coulomb bound states. Our predictions for these states are systematically lower than those made long ago by Bjorken, but still compatible with the known mass inequalities in QCD.