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arXiv 1611.04572hep-ph
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极小模型中的Seesaw标度和CP位相

Seesaw Scale and CP Phases in a Minimal Model of Leptogenesis

Kim Siyeon

摘要:

利用右手中微子的重质量导出左手中微子的轻质量的跷跷板机制,引起了低能可测量与GUT标度机制之间的联系。我们用一个最近测量过的单变量$\sinθ_{13}$来表示中微子混合角。重中微子通过Yukawa耦合产生的轻子不对称性用Dirac和Majorana两种CP相描述。结果表明,在这个极小模型中,与轻子不对称性有关的跷跷板尺度可以被CP相位所约束。

英文摘要:

The seesaw mechanism to derive the light masses of left-handed neutrinos using heavy masses of right-handed neutrinos gives rise to a connection between low-energy measurables and GUT-scale mechanism. We expresses the neutrino mixing angles in terms of a single variable $\sinθ_{13}$, whose size was measured recently. The lepton asymmetry from heavy neutrinos via Yukawa coupling is described by CP phases in both Dirac and Majorana type. It is shown that the seesaw scale relevant to the lepton asymmetry can be constrained by CP phase in this minimal model.

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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