电荷破坏对τ子标量粒子左右混合的约束
高能物理 - 唯象学
2012-11-26 v2
摘要
在最小超对称标准模型中,τ子标量粒子的大左右混合有时从现象学角度来看颇具吸引力。然而,过大的左右混合是不可接受的,因为电弱破缺真空会变得亚稳态。本文利用半经典技术评估了真空跃迁率,并给出了模型参数的约束条件。在计算中,在多场空间中推导了反弹解。这些约束也适用于低能最小规范介导模型的情况。
引用
@article{arxiv.1011.0260,
title = {Charge-breaking constraints on left-right mixing of stau's},
author = {Junji Hisano and Shohei Sugiyama},
journal= {arXiv preprint arXiv:1011.0260},
year = {2012}
}
备注
Since we found an error in our numerical code, all figures and a fitting formula in Eq. (11) in this manuscript are replaced from the original ones. The numerical differences between them are at most 15%