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arXiv 1106.0551hep-phhep-th
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具有复杂表示的直接规范中介模型的约束

Constraints on Direct Gauge Mediation Models with Complex Representations

Kentaro Hanaki, Masahiro Ibe, Yutaka Ookouchi, Chang-Soon Park

摘要:

我们讨论了基于ISS超对称破缺模型的直接规范介导模型的宇宙学约束。当ISS模型基于具有复表象的规范对称性时,它具有最终自发破缺的U(1)对称性,这是ISS模型的一般特征。我们表明,由此产生的伪南武-戈德斯通玻色子在宇宙学中的问题,这导致严重的限制模型。当U(1)对称性是规范对称性时,我们还发现,通过观测宇宙弦网络发射的引力波,可以探测模型的大部分参数空间。

英文摘要:

We discuss constraints from cosmology on the models with direct gauge mediation based on the ISS supersymmetry breaking models. It is a generic feature that the ISS models possess a U(1) symmetry which is eventually spontaneously broken, when the models are based on the gauge symmetries with complex representations. We show that the resultant pseudo Nambu-Goldstone boson causes problems in cosmology, which leads to severe constraints on the models. We also show that most parameter space of the models can be probed by observing gravitational waves emitted from the cosmic string network when the U(1) symmetry is a gauge symmetry.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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