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arXiv 1004.3852hep-ph
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大型强子对撞机上的跷跷板中微子信号

Seesaw Neutrino Signals at the Large Hadron Collider

Shigeki Matsumoto, Takehiro Nabeshima, Koichi Yoshioka

摘要:

我们讨论的情况下,规范单费米子(右手中微子)可在大型强子对撞机的能量。单重态费米子通过跷跷板机制产生微小的中微子质量,并且与标准模型粒子有相当大的耦合。我们证明,这两个事实,这是天真地不同时满足,是调和在五维框架中的各种时尚,这使得跷跷板机制观察。在考虑中微子质量谱的三种类型和轻子味破坏的约束条件下,研究了两个明显的可观测跷跷板例子的三轻子末态的对撞机信号.我们发现,通过显示信号发现的意义,对撞机实验有可能找到额外的维度和小中微子质量的起源的信号。

英文摘要:

We discuss the scenario with gauge singlet fermions (right-handed neutrinos) accessible at the energy of the Large Hadron Collider. The singlet fermions generate tiny neutrino masses via the seesaw mechanism and also have sizable couplings to the standard-model particles. We demonstrate that these two facts, which are naively not satisfied simultaneously, are reconciled in the five-dimensional framework in various fashions, which make the seesaw mechanism observable. The collider signal of tri-lepton final states with transverse missing energy is investigated for two explicit examples of the observable seesaw, taking account of three types of neutrino mass spectrum and the constraint from lepton flavor violation. We find by showing the significance of signal discovery that the collider experiment has a potential to find signals of extra dimensions and the origin of small neutrino masses.

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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