弱耦合下重夸克的色极化率
高能物理 - 唯象学
2018-08-28 v3
摘要
我们得到了重夸克有效理论（HQET）拉氏量中威尔逊系数的重整化群改进表达式，在自旋无关扇区采用领先对数近似至 ，其中包含了重夸克的色极化率。我们的分析包含了旁观夸克所诱导的效应。我们观察到，在大多数情况下，这些对数的数值影响非常大。
引用
@article{arxiv.1710.07647,
title = {The chromo-polarizabilities of a heavy quark at weak coupling},
author = {Daniel Moreno and Antonio Pineda},
journal= {arXiv preprint arXiv:1710.07647},
year = {2018}
}
备注
34 pages, 14 figures; Journal version. Ref. [14] added. Fig. 4 slightly modified. More detailed comparison with Refs. [9,13,14] made. Results unchanged. v3: 1/2 missing factor in the c_kc_F^2 term in Eqs. 32 and 33 (and Eqs. 34, 35) corrected. Eqs. 55-60, 65-66 and Fig. 5 corrected. Numerical impact very small. Conclusions unchanged