Neutrinos and proton decay: signal from grand unification ((05) N05)

中微子和质子衰变：来自大统一的信号 ((05) N05)

• 批准号: 327334420
• 金额: --
• 依托单位: Department of Physics and Astronomy
• 依托单位国家: 德国
• 项目类别: Collaborative Research Centres
• 财政年份: 2017
• 资助国家: 德国
• 起止时间: 2016-12-31 至 2020-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/327334420?language=en
• 关键词: Neutrinos; proton; decay; signal; grand

Neutrinos may conceivably play a key role in our attempts of probing physics at a more fundamental level. The see-saw mechanism involves a scale which is comparable to the gauge coupling unification scale in the supersymmetric extension of the standard model. The observed longevity of the proton suggests also a rather high suppression scale of higher-dimensional operators. Alternatively, the neutrino Yukawa couplings and the proton decay operators may be suppressed by appropriate symmetries. In this case, one may explain light Dirac neutrinos, which might have important implications for the background neutrinos. The aim of this project is to work out a coherent picture by supplementing the experimental data with the consistency conditions in explicit string-derived models. Various alternatives to the standard see-saw scenario will be explored.

可以想象，中微子可能在我们试图在更基础的层面上探索物理学时发挥关键作用。跷跷板机制涉及一个尺度，这是可比的规范耦合统一尺度的超对称扩展的标准模型。所观察到的寿命的质子也表明了一个相当高的抑制规模的高维运营商。另外，中微子汤川耦合和质子衰变算子可以通过适当的对称性来抑制。在这种情况下，人们可以解释轻狄拉克中微子，这可能对背景中微子有重要的影响。这个项目的目的是制定出一个连贯的图片补充实验数据与一致性条件显式字符串导出模型。将探讨标准跷跷板情景的各种替代方案。