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arXiv 1303.4097hep-phnucl-th
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轻子味守恒、轻子数守恒和标准模型以外的物理

Lepton Flavor and Number Conservation, and Physics Beyond the Standard Model

Andre de Gouvea, Petr Vogel

摘要:

中微子质量和轻子混合的物理机制仍然未知。需要更多的实验数据来约束和指导粒子物理学标准模型的可能推广,并揭示非零中微子质量背后的机制。本文综述了在带电轻子过程中寻找轻子味守恒破坏和在核物理过程中寻找轻子数守恒破坏的物理研究进展。第一部分讨论了带电轻子味破坏的几个方面,特别是它对新粒子和粒子物理标准模型之外的相互作用的敏感性。讨论主要集中在涉及μ子和电子的罕见过程。第二部分讨论了轻子总数守恒的现状。这里的讨论集中在当前和未来的探测这一明显的自然规律,通过寻找无中微子双β衰变,这也是最敏感的探测潜在的马约拉纳性质的中微子。

英文摘要:

The physics responsible for neutrino masses and lepton mixing remains unknown. More experimental data are needed to constrain and guide possible generalizations of the standard model of particle physics, and reveal the mechanism behind nonzero neutrino masses. Here, the physics associated with searches for the violation of lepton-flavor conservation in charged-lepton processes and the violation of lepton-number conservation in nuclear physics processes is summarized. In the first part, several aspects of charged-lepton flavor violation are discussed, especially its sensitivity to new particles and interactions beyond the standard model of particle physics. The discussion concentrates mostly on rare processes involving muons and electrons. In the second part, the status of the conservation of total lepton number is discussed. The discussion here concentrates on current and future probes of this apparent law of Nature via searches for neutrinoless double beta decay, which is also the most sensitive probe of the potential Majorana nature of neutrinos.

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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