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arXiv 0712.0619hep-phhep-th
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D项规范中介和U(1)中介下O(10)eV引力子稳定的SUSY破缺模型

Stable SUSY Breaking Model with O(10) eV Gravitino from Combined D-term Gauge Mediation and U(1)' Mediation

Yu Nakayama

摘要:

我们给出了一个基于D项规范介导和U(1)介导的具有O(10)eV引力子质量的稳定超对称破缺模型的计算实例。利用U(1)的贡献,解决了D项规范介导下超对称标准模型(SSM)费米子的负质量平方问题.另一方面,U(1)介导中SSM gauginos和sfermion之间的分裂被D项规范介导的贡献所规避。由于U(1)的调解没有引入任何新的超对称真空,我们得到了一个完全稳定的模型下的热效应。因此,我们的模型没有宇宙学上的困难。

英文摘要:

We show a calculable example of stable supersymmetry (SUSY) breaking models with O(10) eV gravitino mass based on the combination of D-term gauge mediation and U(1)' mediation. A potential problem of the negative mass squared for the SUSY standard model (SSM) sfermions in the D-term gauge mediation is solved by the contribution from the U(1)' mediation. On the other hand, the splitting between the SSM gauginos and sfermions in the U(1)' mediation is circumvented by the contributions from the D-term gauge mediation. Since the U(1)' mediation does not introduce any new SUSY vacua, we achieve a completely stable model under thermal effects. Our model, therefore, has no cosmological difficulty.

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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