Scalar Dark Matter in A4 based texture one-zero neutrino mass model within Inverse Seesaw Mechanism

被引：3

作者：

Verma, Rishu ^{[1
]}

Kashav, Monal ^{[1
]}

Verma, Surender ^{[1
]}

Chauhan, B. C. ^{[1
]}

机构：

[1] Cent Univ Himachal Pradesh, Dept Phys & Astron Sci, Dharamshala 176215, India

来源：

PROGRESS OF THEORETICAL AND EXPERIMENTAL PHYSICS | 2022年 / 2022卷 / 03期

关键词：

PHENOMENOLOGICAL IMPLICATIONS; CP-VIOLATION; SYMMETRIES; MATRICES; LIGHT;

D O I：

10.1093/ptep/ptep130

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In this paper, we present a model based on A(4) discrete flavor symmetry implementing inverse and type-II seesaw mechanisms to have LHC accessible TeV scale right-handed neutrino mass and texture one-zero in the resulting Majorana neutrino mass matrix, respectively. We investigate neutrino and dark matter sectors of the model. Non-Abelian discrete A(4) symmetry spontaneously breaks into Z(2) subgroup and hence provide stable dark matter candidate. To constrain the Yukawa Lagrangian of our model, we imposed Z(2)', Z(3) and Z(4) cyclic symmetries in addition to the A(4) flavor symmetry. In this work we used the recently updated data on cosmological parameters from PLANCK 2018. For the dark matter candidate mass around 45 GeV-55 GeV, we obtain the mediator particle mass(right-handed neutrinos) ranging from 138 GeV to 155 GeV. The Yukawa couplings is found to be in the range 0.995-1 to have observed relic abundance of dark matter. We, further, obtain inverse (X F(2)n/z(2)) and type-II (X' f(1)v Delta(1)) seesaw contributions to 0 nu beta beta decay amplitude vertical bar M-ee vertical bar, while model being consistent with low energy experimental constraints. In particular, we emphasize that type-II seesaw contribution to vertical bar M-ee vertical bar is large as compared to inverse seesaw contribution for normally ordered(NO) neutrino masses.

引用

页数：20

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