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Physics Letters B 798, 134979 (2019)

ISSN: 0370-2693, SCI

Comment on the article by D. Borah and B. Karmakar "Linear seesaw for Dirac neutrinos with A_4 flavour symmetry", Phys. Lett. B 789 (2019) 59–70, arXiv:1806.10685

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

D. Borah and B. Karmakar [1]have proposed an A_4 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 Ref.[1], 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 Ref.[1], that the inverted neutrino mass spectrum is not ruled out.

DOI: 10.1016/j.physletb.2019.134979

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