arXiv 1909.110472019-09-24hep-ph

对D. Borah和B. Karmakar“线性跷跷板狄拉克中微子与A4味对称”，物理快报。B789（2019）59-70，arXiv：1806.10685

Comment on the article by D. Borah and B. Karmakar "Linear seesaw for Dirac neutrinos with A4 flavour symmetry", Phys. Lett. B789 (2019) 59-70, arXiv: 1806.10685

V. V. Vien, H. N. Long, A. E. Cárcamo Hernández

备注：: 5 pages. Version accepted for publication in Physics Letters B
发表信息：: Phys. Lett. B 798, (2019) 134979
DOI：: 10.1016/j.physletb.2019.134979

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摘要：

D. Borah和B. Karmakar in Phys. Lett. B789（2019）提出了一个A4风味的线性跷跷板模型来实现轻狄拉克中微子。在这篇评论文章中，我们表明，一些中微子汤川相互作用在模型中被遗漏，从而意味着需要一个不同的公式来确定有效的中微子质量矩阵，具有显着不同的结果。我们的结果表明，不像在物理学。B789（2019），不排除反向中微子质谱。

英文摘要：

D. Borah and B. Karmakar in Phys. Lett. B789 (2019) have proposed an A4 flavoured linear seesaw model to realise light Dirac neutrinos. In this comment article, we show that some neutrino Yukawa interactions were missed in the model, thus implying that a different formula would be needed to determine the effective neutrino mass matrix, with significantly different results. Our result shows that, unlike stated in Phys. Lett. B789 (2019), that the inverted neutrino mass spectrum is not ruled out.

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