THE ONE-LOOP IMPROVED LAGRANGIAN OF THE GRIMUS-NEUFELD MODEL

被引：0

作者：

Dudenas, Vytautas ^{[1
]}

Gajdosik, Thomas ^{[1
]}

Juodagalvis, Andrius ^{[1
]}

Jurciukonis, Darius ^{[1
]}

机构：

[1] Vilnius Univ, Univ 3, LT-01513 Vilnius, Lithuania

来源：

ACTA PHYSICA POLONICA B | 2017年 / 48卷 / 12期

关键词：

MAJORANA; DIRAC;

D O I：

10.5506/APhysPolB.48.2235

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Adding a single gauge singlet fermion and a second Higgs doublet to the original Standard Model allows an explanation for the observed smallness of the neutrino masses using the seesaw mechanism. This model predicts two neutral fermions with vanishing mass. The one-loop contribution to the neutral fermion masses due to the second Higgs doublet lifts this degeneracy and allows to fit the model parameters to the observed neutrino mass differences. We determine the values of the additional Yukawa couplings by requiring the correct prediction of the mass differences and mixings in the neutrino sector. We also discuss the ambiguities of the model parameters.

引用

页码：2235 / 2242

页数：8

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