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arXiv 0811.3411hep-phastro-phhep-ex
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重子生成过程中的中微子质量体系和中子-反中子振荡

Neutrino Mass Hierarchy and neutron-anti-neutron Oscillation from Baryogenesis

K. S. Babu, P. S. Bhupal Dev, R. N. Mohapatra

摘要:

最近有人提出,宇宙的物质-反物质不对称性可能起源于“后闪锌矿重子生成”(PSB)。这是一个TeV尺度的机制,可以在LHC和其他低能实验中测试。在本文中,我们提出了一个PSB理论的夸克-轻子统一方案的基础上规范群$SU(2)_L\times SU(2)_R\times SU(4)_c$,允许重子不对称性和中微子质量矩阵之间的直接联系。在模型中,中性流的味道变化限制只允许中微子的质量层次倒置,这可以在长基线中微子实验中进行测试。该模型还预测可观察到的中子-反中子振荡访问下一代的实验,以及TeV规模的彩色标量达到大型强子对撞机。

英文摘要:

It has been recently proposed that the matter-antimatter asymmetry of the universe may have its origin in "post-sphaleron baryogenesis" (PSB). It is a TeV scale mechanism that is testable at the LHC and other low energy experiments. In this paper we present a theory of PSB within a quark-lepton unified scheme based on the gauge group $SU(2)_L\times SU(2)_R\times SU(4)_c$ that allows a direct connection between the baryon asymmetry and neutrino mass matrix. The flavor changing neutral current constraints on the model allow successful baryogenesis only for an inverted mass hierarchy for neutrinos, which can be tested in the proposed long base line neutrino experiments. The model also predicts observable neutron--antineutron oscillation accessible to the next generation of experiments as well as TeV scale colored scalars within reach of LHC.

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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