arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2011.06447hep-ph
收藏

将标准模型匹配到重夸克有效理论和非相对论QCD

Matching the Standard Model to Heavy-Quark Effective Theory and Nonrelativistic QCD

B. Assi, B. A. Kniehl, J. Soto

AI总结:

本文计算标准模型到HQET与NRQCD的单圈电弱匹配,给出两夸克及四夸克算符Wilson系数至相应逆质量阶,并导出新的宇称破坏项。

摘要:

我们找到了重夸克有效理论和非相对论QCD拉格朗日量的领头阶电弱修正。这些修正出现在两夸克和四夸克算符的Wilson系数中,并分别在单圈阶考虑至$\mathcal{O}(1/m^3)$和$\mathcal{O}(1/m^2)$。该阶的两夸克算符包含新的宇称破坏项,我们以类似单圈阶宇称守恒QCD结果的方式推导了它们。

英文摘要:

We find the leading electroweak corrections to the Lagrangians of heavy-quark effective theory and nonrelativistic QCD. These corrections appear in the Wilson coefficients of the two- and four-quark operators and are considered here at one-loop order through $\mathcal{O}(1/m^3)$ and $\mathcal{O}(1/m^2)$, respectively. The two-quark operators through this order include new parity violating terms, which we derive analogously to the parity preserving QCD result at one-loop order.

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。

↑