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arXiv 2307.04729hep-thhep-lathep-ph
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在大 $N_c$ 下自举手征反常

Bootstrapping the Chiral Anomaly at Large $N_c$

Teng Ma, Alex Pomarol, Francesco Sciotti

AI总结:

本文将自举方法扩展至介子与外部规范玻色子的散射振幅,借此研究手征反常,获得了作为介子偶极极化率函数的手征反常系数解析界限,为全息模型和格点模拟提供了一致性条件。

摘要:

自举方法(要求对散射振幅施加一致性条件)已被证明在大 $N_c$ 下紧密约束规范理论方面非常强大。我们将先前的分析扩展到涉及介子和外部规范玻色子的散射振幅。这些振幅使我们能够研究手征反常,并将低能物理量与理论的 UV 性质联系起来。具体而言,我们能够获得作为介子偶极极化率函数的手征反常系数的解析界限。该界限对于其对偶 UV 完备性未知的全息模型是有用的,并为格点模拟提供了一致性条件。

英文摘要:

The bootstrap approach (demanding consistency conditions to scattering amplitudes) has shown to be quite powerful to tightly constrain gauge theories at large $N_c$. We extend previous analysis to scattering amplitudes involving pions and external gauge bosons. These amplitudes allow us to access the chiral anomaly and connect low-energy physical quantities to UV properties of the theory. In particular, we are able to obtain an analytic bound on the chiral anomaly coefficient as a function of the pion dipole polarizabilities. This bound can be useful for holographic models whose dual UV completions are not known, and provide a consistency condition to lattice simulations.

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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