标题： 具有最小味破坏的二希格斯双重模型 显示英文标题

标题： Two-Higgs-doublet models with Minimal Flavour Violation

摘要： 树级味改变中性流在双希格斯二重态模型中可以通过保护味对称性或味无关对称性的破缺来抑制，但只有第一种选择，即通过应用最小味破坏假设来实现，能够在量子修正下保持稳定。 此外，一个包含最小味破坏的双希格斯二重态模型，若引入味无关相位，可以解释最近在ΔF = 2跃迁中发现的异常现象，即B_s混合中的大CP破坏相位以及epsilon_K和S_\psi _K之间的张力。 显示英文摘要

摘要： The tree-level flavour-changing neutral currents in the two-Higgs-doublet models can be suppressed by protecting the breaking of either flavour or flavour-blind symmetries, but only the first choice, implemented by the application of the Minimal Flavour Violation hypothesis, is stable under quantum corrections. Moreover, a two-Higgs-doublet model with Minimal Flavour Violation enriched with flavour-blind phases can explain the anomalies recently found in the Delta F = 2 transitions, namely the large CP-violating phase in B_s mixing and the tension between epsilon_K and S_\psi_K.