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arXiv 2201.10429hep-ph
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具有Leptogenesis的$A^\prime_5$模块对称中的线性跷跷板

Linear seesaw in $A^\prime_5$ modular symmetry with Leptogenesis

Mitesh Kumar Behera, Rukmani Mohanta

摘要:

本文在线性跷跷板框架下研究了模$Γ^{\prime}_5 \simeq A^{\prime}_5$对称性对中微子振荡现象的影响。为了实现定义良好的质量结构的轻活性中微子的线性跷跷板机制所规定的,我们引入六个重费米子场以及一对重子,以保持全纯性质的超势。模对称的显著特点是,它大大减少了flavon字段的使用。此外,汤川耦合在味对称群下进行非平凡变换,并用Dedekind eta函数表示,其$q$展开式使计算数值简单.我们证明,该模型框架努力容纳所有的中微子振荡的数据。此外,我们还研究了最轻重费米子衰变产生的CP不对称性的影响,以通过瘦生现象解释观察到的重子不对称性。

英文摘要:

In this paper, we investigate the implication of modular $Γ^{\prime}_5 \simeq A^{\prime}_5$ symmetry on neutrino oscillation phenomenology in the linear seesaw framework. In order to achieve the well defined mass structure for the light active neutrinos as dictated by the linear seesaw mechanism, we introduce six heavy fermion fields along with a pair of weightons to retain the holomorphic nature of the superpotential. The notable feature of modular symmetry is that, it reduces the usage of flavon fields significantly. In addition, the Yukawa couplings transform non-trivially under the flavor symmetry group and expressed in terms of the Dedekind eta functions, the $q$ expansion of which renders numerical simplicity in calculations. We demonstrate that the model framework diligently accommodates all the neutrino oscillation data. Alongside, we also investigate the effect of CP asymmetry generated from the decay of lightest heavy fermions to explain the observed baryon asymmetry through the phenomenon of leptogenesis.

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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