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arXiv 1705.00751hep-phhep-th
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某些$SO(N)$和$SU(N)$模型的渐近自由度

Asymptotic freedom in certain $SO(N)$ and $SU(N)$ models

Martin B Einhorn, D R Timothy Jones

摘要:

我们计算的$β$ -功能的$SO(N)$和$SU(N)$规范理论耦合到伴随和基本标量表示,纠正长期以来,以前的结果。我们探讨了$N$的限制,要求渐近自由的所有耦合。当我们考虑到规范耦合的实际允许行为时,两种情况下的最小值$N$都比早期处理中实现的要大。我们还表明,在大的$N$限制,这两个模型都有大的区域的参数空间对应的总渐近自由。

英文摘要:

We calculate the $β$-functions for $SO(N)$ and $SU(N)$ gauge theories coupled to adjoint and fundamental scalar representations, correcting long-standing, previous results. We explore the constraints on $N$ resulting from requiring asymptotic freedom for all couplings. When we take into account the actual allowed behavior of the gauge coupling, the minimum value of $N$ in both cases turns out to be larger than realized in earlier treatments. We also show that in the large $N$ limit, both models have large regions of parameter space corresponding to total asymptotic freedom.

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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