最小无扰动标准模型（MDSM）及其宇宙学
The Minimal Dimensionless Standard Model (MDSM) and its Cosmology
摘要：
考虑标准模型的最小可重正化扩展，它具有纯粹的无量纲耦合、成功的电弱对称性破缺（通过科尔曼-温伯格机制）和中微子质量的跷跷板机制：我们称之为最小无量纲标准模型（MDSM）。实际上，有3个密切相关的模型符合要求：MDSM_1、MDSM_2和MDSM_3。我们分析了这些模型的理论和观测约束。我们认为，当它们与引力的耦合程度最低时，它们可以以一种经济、预测性和紧密编织在已知物理学结构中的方式完成几项重要的宇宙学任务（暴胀、暗物质、稀薄发生）。其中一个模型（MDSM_3）包含一个额外的U（1）_{B-L}规范对称性，似乎特别有希望。
英文摘要：
Consider the minimal renormalizable extension of the Standard Model with purely dimensionless couplings, successful electroweak symmetry breaking (via the Coleman-Weinberg mechanism) and a see-saw mechanism for neutrino mass: we will call this the Minimal Dimensionless Standard Model (MDSM). In fact, 3 closely related models fit the bill: MDSM_1, MDSM_2 and MDSM_3. We analyze the theoretical and observational constraints on these models. We argue that, when they are minimally coupled to gravity, they can accomplish several important cosmological tasks (inflation, dark matter, leptogenesis) in a way that is economical, predictive and tightly woven into the fabric of known physics. One of the models (MDSM_3), which includes an extra U(1)_{B-L} gauge symmetry, seems particularly promising.
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