AI 中文总结
针对标准模型无法解释的费米子质量层级问题，分类得到25种含四个奇异多重态的最小模型，其中部分模型可产生单圈中微子狄拉克质量或类WIMP暗物质，基准模型可精确复制标准模型Yukawa耦合。
AI 中文摘要
标准模型既未对夸克和轻子的质量层级提供动力学解释，也未说明为何除顶夸克外所有这些质量都比电弱标度被压低。受此启发，我们探索替代的辐射质量产生假说，专门针对单圈水平下底夸克、粲夸克和τ轻子质量的产生。我们对仅使用奇异标量和奇异费米子的所有最小模型进行分类，得到25种包含四个奇异多重态的可能情况。作为额外结果，若包含右手征中微子场，部分模型会产生单圈中微子狄拉克质量，部分具有类WIMP暗物质候选者。作为示例，我们分析从25个候选模型中选取的基准模型的现象学，发现其在允许的参数空间内能够精确复制标准模型预测的 Yukawa耦合。
英文摘要
The Standard Model neither provides a dynamical explanation for the quark and lepton mass hierarchies, nor a rationale for why all of these masses save that of the top quark are suppressed compared to the electroweak scale. Motivated by this, we explore the alternative radiative mass generation hypothesis, specialising to the generation of the bottom, charm, and tau masses at one-loop level. A classification of all minimal models that use exotic scalars and exotic fermions only is presented, resulting in 25 possibilities featuring four exotic multiplets. As a bonus, some of the models produce a one-loop neutrino Dirac mass if a right-handed neutrino field is included, and some feature WIMP-like dark matter candidates. By way of example, we analyse the phenomenology of a benchmark model chosen from the set of 25 candidates and find that it is capable of exactly replicating the predicted Standard Model Yukawa couplings within the permitted parameter space.
Comments22 pages, 6 figures
