标题： 向量型规范理论的共形窗口中的半直接规范传播 显示英文标题

标题： Semi-direct Gauge Mediation in Conformal Windows of Vector-like Gauge Theories

摘要： 直接规范媒介模型使用Intriligator-Seiberg-Shih (ISS)亚稳真空会受到标准模型规范耦合的Landau极点问题以及R对称性禁止规范子质量的存在。 这些问题可以通过使用最近提出的在类矢量型$SU(N_C)$规范理论的共形窗口中的超对称破缺模型来解决。 在本文中，我们提出了一种基于共形窗口中超对称破缺模型的规范媒介模型，并研究了超对称破缺的动力学。 在该模型中，存在在$SU(N_C)$和标准模型规范群下带电的大量类矢量型双重态场，我们的模型可以被视为一种半直接规范媒介模型。 颜色数$N_C$可以很小以避免Landau极点问题，并且在对模型强相互作用的合理假设下，R对称性也被破坏。 该模型只有一个自由参数，规范子和标费米子质量自然处于同一数量级。 显示英文摘要

摘要： Direct gauge mediation models using the Intriligator-Seiberg-Shih (ISS) metastable vacua suffer from the Landau pole problem of the standard model gauge couplings and the existence of R symmetry forbidding gaugino masses. These problems may be solved by using the recently proposed SUSY breaking models in a conformal window of the vector-like $SU(N_C)$ gauge theory with gauge singlets. In this paper we propose a model of gauge mediation based on the SUSY-breaking model in the conformal window, and study the dynamics for the SUSY breaking. In the model, there are massive vector-like bifundamental fields charged under both $SU(N_C)$ and the standard model gauge group, and our model can be regarded as a semi-direct gauge mediation model. The color number $N_C$ can be small to avoid the Landau pole problem, and the R symmetry is also broken under a reasonable assumption on the strong dynamics of the model. The model possesses only one free parameter, and the gaugino and sfermion masses are naturally of the same order.