arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 2008.05362hep-ph
收藏

可重正化的$SO(10)$ GUT及其抑制的5维质子衰变

Renormalizable $SO(10)$ GUT with Suppressed Dimension-5 Proton Decays

Naoyuki Haba, Yukihiro Mimura, Toshifumi Yamada

摘要:

本文研究了一个可重正化的SUSY $SO(10)$大统一模型,其中单${\bf 10}$场、单${\bf \overline{126}}$场和单${\bf 120}$场的Yukawa耦合$Y_{10},Y_{126},Y_{120}$,可以解释夸克和轻子的Yukawa耦合以及中微子质量.我们希望$Y_{10},Y_{126},Y_{120}$能再现正确的夸克和轻子质量、CKM和PMNS矩阵以及中微子质量差,同时通过它们的织构抑制五维质子衰变(通过有色Higgsino交换的质子衰变),从而在不与当前质子衰变实验界限相冲突的情况下尽可能地减小超对称软破缺标度.我们进行了一个数值搜索这样的纹理,并调查的影响,未知的中微子参数,狄拉克CP相位PMNS矩阵,最轻的中微子质量和$(1,1)$ -组件的中微子质量矩阵中的带电轻子的基础。在这里,我们集中在的情况下,当活跃的中微子质量主要是由2型跷跷板机制,在这种情况下,抑制5维质子衰变和中微子参数之间的相关性预计是最直接的。

英文摘要:

We study a renormalizable SUSY $SO(10)$ GUT model where the Yukawa couplings of single ${\bf 10}$, single ${\bf \overline{126}}$ and single ${\bf 120}$ fields, $Y_{10},Y_{126},Y_{120}$, account for the quark and lepton Yukawa couplings and the neutrino mass. We pursue the possibility that $Y_{10},Y_{126},Y_{120}$ reproduce the correct quark and lepton masses, CKM and PMNS matrices and neutrino mass differences, and at the same time suppress dimension-5 proton decays (proton decays via colored Higgsino exchange) through their texture, so that the soft SUSY breaking scale can be reduced as much as possible without conflicting the current experimental bound on proton decays. We perform a numerical search for such a texture, and investigate implications of that texture on unknown neutrino parameters, the Dirac CP phase of PMNS matrix, the lightest neutrino mass and the $(1,1)$-component of the neutrino mass matrix in the charged lepton basis. Here we concentrate on the case when the active neutrino mass is generated mostly by the Type-2 seesaw mechanism, in which case the correlation between the suppression of dimension-5 proton decays and the neutrino parameters is expected to be most direct.

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。

↑