arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1208.5906hep-ph
收藏

用第一代和第二代费米子约束大统一

Constraining Grand Unification using first and second generation sfermions

D. J. Miller, A. P. Morais, P. N. Pandita

摘要:

我们研究了基于SU(5),SO(10)和E6规范群的超对称大统一模型的谱,特别关注第一代和第二代。我们演示了如何测量的第一代或第二代sfermion光谱可以用来约束基本的大统一结构。第一代和第二代汤川相互作用的小,使我们能够进行分析,推导出表达式的高尺度参数的低尺度sfermion质量。我们还描述了一个求和规则,提供了一个SO(10)的质量预测,不同于SU(5),并讨论了E6模型,在低能量和没有额外的奇异物质。导出的关系进行了比较,包括两个循环运行和完整的汤川依赖的数值结果。

英文摘要:

We investigate the spectrum of supersymmetric grand unification models based on the gauge groups SU(5), SO(10) and E6, paying particular attention to the first and second generation. We demonstrate how the measurement of the first or second generation sfermion spectrum may be used to constrain the underlying grand unification structure. The smallness of first and second generation Yukawa interactions allows us to perform an analytic analysis, deriving expressions for the high scale parameters in terms of the low scale sfermion masses. We also describe a sum rule that provides an SO(10) mass prediction, distinct from SU(5), and discuss E6 models, both with and without extra exotic matter at low energies. The derived relations are compared with numerical results including two-loop running and the full Yukawa dependence.

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。

↑