标准模型中的精确单圈演化不变量
Exact One-Loop Evolution Invariants in the Standard Model
摘要:
基于味对称性的考虑,我们构造了一组精确的标准模型(SM)重整化群演化不变量,它们将夸克质量和混合参数联系起来。我们研究他们的现象学意义,并推断出一个简单的组合汤川耦合矩阵中发挥了独特的作用,SM,这表明一个可能的新的洞察观察到的夸克质量谱。在狄拉克中微子的情况下,我们的演化不变量很容易推广到轻子,但似乎与MSSM中的夸克或轻子无关。
英文摘要:
Guided by considerations of flavour symmetry, we construct a set of exact Standard Model (SM) renormalisation group evolution invariants which link quark masses and mixing parameters. We examine their phenomenological implications and infer a simple combination of Yukawa coupling matrices which plays a unique role in the SM, suggesting a possible new insight into the observed spectrum of quark masses. Our evolution invariants are readily generalised to the leptons in the case of Dirac neutrinos, but do not appear to be relevant for either quarks or leptons in the MSSM.
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