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arXiv 1101.2140hep-ph
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超对称质谱与跷跷板标度

Supersymmetric mass spectra and the seesaw scale

Martin Hirsch, Laslo Reichert, Werner Porod

摘要:

超对称质谱内的两个变种的跷跷板机制,通常被称为II型和III型跷跷板,计算使用全2回路RGE和最小的超重力边界条件。II型跷跷板使用一对15和$\bar{15}$超场实现,而III型跷跷板使用三个$24_M$超场副本实现。使用已发表的,估计误差超对称质量可观测到的LHC和LHC+ILC分析相结合,我们计算预期误差的模型的参数,最显着的跷跷板规模。如果超对称性粒子在ILC的范围内,纯mSugra可以区分mSugra加上II型或III型跷跷板几乎所有相关值的跷跷板规模。即使在这种情况下,当只使用精度低得多的大型强子对撞机测量,我们发现,在参数空间的有利部分,可以找到的迹象跷跷板。由于我们的结论关键取决于理论预测的误差棒的可靠性,我们讨论了一些详细的精度,需要达到的最重要的LHC和ILC观测值之前的分析,如这里提出的,可以找到任何提示类型II或类型III的跷跷板超对称谱。

英文摘要:

Supersymmetric mass spectra within two variants of the seesaw mechanism, commonly known as type-II and type-III seesaw, are calculated using full 2-loop RGEs and minimal Supergravity boundary conditions. The type-II seesaw is realized using one pair of 15 and $\bar{15}$ superfields, while the type-III is realized using three copies of $24_M$ superfields. Using published, estimated errors on SUSY mass observables attainable at the LHC and in a combined LHC+ILC analysis, we calculate expected errors for the parameters of the models, most notably the seesaw scale. If SUSY particles are within the reach of the ILC, pure mSugra can be distinguished from mSugra plus type-II or type-III seesaw for nearly all relevant values of the seesaw scale. Even in the case when only the much less accurate LHC measurements are used, we find that indications for the seesaw can be found in favourable parts of the parameter space. Since our conclusions crucially depend on the reliability of the theoretically forecasted error bars, we discuss in some detail the accuracies which need to be achieved for the most important LHC and ILC observables before an analysis, such as the one presented here, can find any hints for type-II or type-III seesaw in SUSY spectra.

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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