arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 0905.4088hep-phhep-th
收藏

强耦合隐扇区现象学研究

On the Phenomenology of Strongly Coupled Hidden Sectors

Nathaniel J. Craig, Daniel Green

摘要:

在超对称性破缺和介导模型中,强耦合超对称性破缺扇区在确定模型低能谱中起着重要作用。例如,强动力学可以为超对称性问题和mu / B mu问题提供自然的解决方案。最近,有人建议,一个大类的这些模型导致相同的边界条件在超对称性破缺尺度。这些边界条件将严重限制模型的可行性。我们证明,边界条件,而不是敏感的隐藏部门的细节,只有特定的隐藏部门可能会被排除的现象学考虑。我们利用隐扇区的算子乘积展开确定了高尺度边界条件。用于确定β函数的技术通常适用于任意近似共形隐扇区的RG流。与以前提出的边界条件的差异可以追溯到这样一个事实,即重整化群(RG)流涉及多个固定点。

英文摘要:

In models of supersymmetry (SUSY) breaking and mediation, strongly coupled SUSY-breaking sectors can play a significant role in determining the low-energy spectrum of the model. For example, strong dynamics may provide a natural solution to both the SUSY flavor problem and the mu / B mu problem. Recently, it has been suggested that a large class of these models lead to identical boundary conditions at the SUSY breaking scale. These boundary conditions would severely constrain the models' viability. We demonstrate that the boundary conditions are instead sensitive to the details of the hidden sector, so that only specific hidden sectors may be ruled out by phenomenological considerations. We determine the high scale boundary conditions using the operator product expansion of the hidden sector. The techniques used to determine the beta functions are generally applicable to the RG flow of any approximately conformal hidden sector. The discrepancy with previously proposed boundary conditions can be traced to the fact that the renormalization group (RG) flow involves multiple fixed points.

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。

↑