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arXiv 2309.04472hep-thhep-lathep-ph
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三维 Yang-Mills 理论中的两点求和规则

Two-point sum-rules in three-dimensional Yang-Mills theory

Simon Caron-Huot, Andrzej Pokraka, Zahra Zahraee

AI总结:

本文在微扰理论中计算三维 Yang-Mills 理论的应力张量两点函数至三圈,利用 Borel 变换假设估计最轻 glueball 的质量与耦合,并与 lattice 模拟对比,同时探讨了该方法在高自旋算符中的应用。

摘要:

我们在微扰理论中计算了三维 Yang-Mills 理论中的应力张量两点函数至三圈。利用其在高动量下可计算的形状,我们测试了其 Borel 变换在低能下由最轻的 glueball 态饱和的概念。该假设为最轻 glueball 的质量提供了相对稳定的估计,我们将其与 lattice 模拟进行了比较。我们还估计了最轻 glueball 与应力张量的耦合。在此过程中,我们评论了此类估计在多大程度上是非严格的。最后,我们讨论了将求和规则分析应用于高自旋算符两点函数的可能性,并获得了 glueball 与这些算符耦合的粗略近似。

英文摘要:

We compute the stress-tensor two-point function in three-dimensional Yang-Mills theory to three-loops in perturbation theory. Using its calculable shape at high momenta, we test the notion that its Borel transform is saturated at low energies by the lowest glueball state(s). This assumption provides relatively stable estimates for the mass of the lightest glueball that we compare with lattice simulations. We also provide estimates for the coupling of the lightest glueball to the stress tensor. Along the way, we comment on the extent that such estimates are non-rigorous. Lastly, we discuss the possibility of applying the sum-rule analysis to two-point functions of higher-spin operators and obtain a crude approximation for the glueball couplings to these operators.

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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