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arXiv 1006.5076hep-lathep-th
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轻夸克质量的QCD转子

The QCD rotator with a light quark mass

Manuel Weingart

摘要:

2味QCD在手征极限中的低能激发局限于一个小的空间盒($δ$ -制度)是一个$O(4)$转子。在这项工作中,我们计算的修正,由于存在一个非零夸克质量的NNL阶的手段维正则手征微扰理论。最终得到的能隙只涉及低能常数$F$、$Λ_1$、$Λ_2$和$B$。

英文摘要:

The low-lying energy excitations of 2-flavour QCD in the chiral limit confined to a small spatial box ($δ$-regime) are that of an $O(4)$ rotator. In this work, we calculate the corrections due to the presence of a nonzero quark mass up to NNL order by means of dimensional regularised chiral perturbation theory. The final result for the energy gap of the system only involves the low-energy constants $F$, $Λ_1$, $Λ_2$ and $B$.

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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