Naturalness, vacuum stability, and leptogenesis in the minimal seesaw model
Naturalness, vacuum stability, and leptogenesis in the minimal seesaw model
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DOI：
10.1103/physrevd.95.095016
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发表时间：
2016-11
影响因子：
5
通讯作者：
G. Bambhaniya;P. Bhupal Dev;S. Goswami;Subrata Khan;W. Rodejohann
中科院分区：
文献类型：
--
作者：
G. Bambhaniya;P. Bhupal Dev;S. Goswami;Subrata Khan;W. Rodejohann
I型跷跷板机制中的右手中微子可以引起对希格斯质量的大的辐射修正，然后自然性论点可以用来限制它们的质量标度和汤川耦合。在极小性的驱动下，我们考虑了两个简并的右手中微子的存在。我们比较了自然度和弱电真空的稳定性以及轻子味道破坏的极限。文中还讨论了无中微子双β衰变的意义，给出了轻中微子参数的重整化效应。在简并的重中微子谱中加入微小的微扰，就可以成功地形成瘦子。
The right-handed neutrinos within the type-I seesaw mechanism can induce large radiative corrections to the Higgs mass, and naturalness arguments can then be used to set limits on their mass scale and Yukawa couplings. Driven by minimality, we consider the presence of two degenerate right-handed neutrinos. We compare the limits from naturalness with the ones from the stability of the electroweak vacuum and from lepton flavor violation. Implications from neutrinoless double beta decay are also discussed and renormalization effects for the light neutrino parameters are presented. Adding small perturbations to the degenerate heavy neutrino spectrum allows for successful leptogenesis.