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arXiv 1006.0949hep-thhep-ph
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超对称破缺与中介机制的比较

A Comparison of Supersymmetry Breaking and Mediation Mechanisms

S. P. de Alwis

摘要:

我们从四维有效场论的观点统一处理了不同的超对称破缺模型和介导模型。特别是GMSB和各种重力介导的超对称性破坏的版本之间的比较表明,一旦前者被嵌入到一个SUGRA框架内,从FCNC抑制的角度来看,该机制没有特别的优势。我们指出所有这些方案的困难-特别是宇宙学模量问题。最后,我们讨论可能的弦论实现。

英文摘要:

We give a unified treatment of different models of supersymmetry breaking and mediation from a four dimensional effective field theory standpoint. In particular a comparison between GMSB and various gravity mediated versions of SUSY breaking shows that, once the former is embedded within a SUGRA framework, there is no particular advantage to that mechanism from the point of view of FCNC suppression. We point out the difficulties of all these scenarios - in particular the cosmological modulus problem. We end with a discussion of possible string theory realizations.

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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