arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2011.01237hep-phastro-ph.COhep-th
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具有大额外维和定域费米子模型中的中微子质量和混合

Neutrino Masses and Mixing in Models with Large Extra Dimensions and Localized Fermions

S. Girmohanta, R. N. Mohapatra, R. Shrock

摘要:

利用低能有效场论方法,研究了夸克和轻子在大额外维中具有局域波函数的模型的一些性质。我们考虑具有两种类型规范群的模型:(i)标准模型规范群,和(ii)左右对称(LRS)规范群。我们的主要重点是轻子部门的模型与$n=2$额外的维度,特别是中微子的质量和混合。我们分析了模型与数据相符合所必须满足的条件,并给出了满足这些条件的额外维轻子波函数的一个解。作为我们工作的一部分,我们还提出了一种新的夸克波函数中心解。与口味变化的中性电流效应的问题进行了评估。最后,我们对这些模型中的重子生成和暗物质进行了评述。

英文摘要:

Using a low-energy effective field theory approach, we study some properties of models with large extra dimensions, in which quarks and leptons have localized wave functions in the extra dimensions. We consider models with two types of gauge groups: (i) the Standard-Model gauge group, and (ii) the left-right symmetric (LRS) gauge group. Our main focus is on the lepton sector of models with $n=2$ extra dimensions, in particular, neutrino masses and mixing. We analyze the requisite conditions that the models must satisfy to be in accord with data and present a solution for lepton wave functions in the extra dimensions that fulfills these conditions. As part of our work, we also present a new solution for quark wave function centers. Issues with flavor-changing neutral current effects are assessed. Finally, we remark on baryogenesis and dark matter in these models.

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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