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arXiv 2012.03331hep-lathep-ph
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格上QCD的大$N_c$极限

The Large $N_c$ limit of QCD on the lattice

Pilar Hernández, Fernando Romero-López

摘要:

本文综述了从格点模拟研究规范理论大$N_c$极限的最新进展。重点不仅是平面极限,而且是$N_c\gtrsim 3$值的${\mathcal O}(N_c^{-1})$校正的大小。一些具体的例子,我们包括的主题是测试大$N_c$因式分解,拓扑磁化率,胶球,介子和重子谱,手征依赖的质量和衰变常数,弱矩阵元素相关的$ΔI=1/2$规则在K介子衰变。

英文摘要:

We review recent progress in the study of the large $N_c$ limit of gauge theories from lattice simulations. The focus is not only the planar limit but also the size of ${\mathcal O}(N_c^{-1})$ corrections for values of $N_c\gtrsim 3$. Some concrete examples of the topics we include are tests of large-$N_c$ factorization, the topological susceptibility, the glueball, meson and baryon spectra, the chiral dependence of masses and decay constants, and weak matrix elements related to the $ΔI=1/2$ rule in kaon decays.

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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