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北美退伍军人节(Veterans Day),12 日无更新
arXiv 1408.6919hep-phhep-latnucl-th
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强子相互作用的QCD不等式

QCD inequalities for hadron interactions

William Detmold

摘要:

我们得到推广的Weingarten-Witten QCD质量不等式特定的多强子系统。对于任意数量的具有最大同位旋的相同赝标量介子的系统,这些不等式证明了组成介子之间的相互作用必须是排斥的,并且在这些通道中不能形成束缚态。在不对称系统中也提取了类似的约束。这些结果是兼容的实验结果(已知的)和最近的格点量子色动力学计算,也导致更严格的约束核子质量比以前推导出的,$m_N \ge 3/2 m_π$。

英文摘要:

We derive generalisations of the Weingarten--Witten QCD mass inequalities for particular multi-hadron systems. For systems of any number of identical pseudo-scalar mesons of maximal isospin, these inequalities prove that interactions between the constituent mesons must be repulsive and that no bound states can form in these channels. Similar constraints in less symmetric systems are also extracted. These results are compatible with experimental results (where known) and recent lattice QCD calculations, and also lead to a more stringent bound on the nucleon mass than previously derived, $m_N \ge 3/2 m_π$.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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