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相关论文: Predictions from scoto-seesaw with $A_4$ modular s…

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To understand the observed pattern of neutrino masses and mixing as well as to account for the dark matter we propose a hybrid scoto-seesaw model based on the $A_4$ discrete flavor symmetry. In this setup, including at least two heavy…

高能物理 - 唯象学 · 物理学 2022-11-30 Joy Ganguly , Janusz Gluza , Biswajit Karmakar

We study a realization of neutrino masses within the linear seesaw mechanism based on non-holomorphic modular $A_4$ symmetry, extending modular-invariant flavor models beyond the conventional holomorphic framework. The model is constructed…

高能物理 - 唯象学 · 物理学 2026-02-27 Rudra Majhi , Mitesh Kumar Behera , Rukmani Mohanta

We propose a hybrid scoto-seesaw model based on the $A_4$ non-Abelian discrete flavor symmetry. Light neutrino masses come from the tree-level type-I seesaw mechanism and from the one-loop scotogenic contribution accommodating viable dark…

高能物理 - 唯象学 · 物理学 2024-07-09 Joy Ganguly , Janusz Gluza , Biswajit Karmakar , Satyabrata Mahapatra

The present work is inspired by the application of $A_4$ modular symmetry in the linear seesaw framework, which restricts the use of multiple flavon fields. Linear seesaw is realized with six heavy $SU(2)_L$ singlet fermion superfields and…

高能物理 - 唯象学 · 物理学 2022-04-26 Mitesh Kumar Behera , Subhasmita Mishra , Shivaramakrishna Singirala , Rukmani Mohanta

We discuss a linear seesaw model with as minimum field content as possible, introducing a modular $S_4$ with the help of gauged $U(1)_{B-L}$ symmetries. Due to rank two neutrino mass matrix, we have a vanishing neutrino mass eigenvalue, and…

高能物理 - 唯象学 · 物理学 2022-05-04 Takaaki Nomura , Hiroshi Okada

We propose a hybrid scotogenic inverse seesaw framework in which the Majorana mass term is generated at the one-loop level through the inclusion of a singlet fermion. This singlet Majorana fermion also serves as a viable thermal relic dark…

高能物理 - 唯象学 · 物理学 2025-05-23 Gourab Pathak , Pritam Das , Mrinal Kumar Das

We propose a model based on the interplay between the type-II seesaw and scotogenic neutrino mass generation mechanisms. The setup features a $\mathbb{Z}_8$ discrete flavour symmetry which is broken down to a residual $\mathbb{Z}_2$…

高能物理 - 唯象学 · 物理学 2023-03-28 D. M. Barreiros , H. B. Câmara , F. R. Joaquim

We study one-loop induced radiative seesaw model applying a modular $A_4$ flavor symmetry, in which the neutrino mass matrix is achieved by two different Yukawa couplings one of which also contributes to positive value of muon anomalous…

高能物理 - 唯象学 · 物理学 2019-08-01 Hiroshi Okada , Yuta Orikasa

We propose a hybrid seesaw model based on $A_{4}$ flavor symmetry, which generates a large hierarchical flavor structure. In our model, tree-level and one-loop seesaw mechanisms predict different flavor structures in the neutrino mass…

高能物理 - 唯象学 · 物理学 2021-03-10 Mayumi Aoki , Daiki Kaneko

We study the phenomenological implications of the modular symmetry $\Gamma(3) \simeq A_4$ of lepton flavors facing recent experimental data of neutrino oscillations. The mass matrices of neutrinos and charged leptons are essentially given…

高能物理 - 唯象学 · 物理学 2018-12-26 Tatsuo Kobayashi , Naoya Omoto , Yusuke Shimizu , Kenta Takagi , Morimitsu Tanimoto , Takuya H. Tatsuishi

We introduce a framework for hybrid neutrino mass generation, wherein scotogenic dark sector particles, including dark matter, are charged non-trivially under the $A_4$ flavor symmetry. The spontaneous breaking of the $A_4$ group to…

高能物理 - 唯象学 · 物理学 2024-12-06 Ranjeet Kumar , Newton Nath , Rahul Srivastava

This paper investigates an inverse seesaw model of neutrino masses based on non-holomorphic modular $A_4$ symmetry, extending the framework of modular-invariant flavor models beyond the conventional holomorphic paradigm. After the general…

高能物理 - 唯象学 · 物理学 2025-10-30 Xianshuo Zhang , Yakefu Reyimuaji

The present work extends scotogenic and its modular $\mathcal{A}_4$ variation a step forward and demonstrates scotogenic modular $\mathcal{A}_4$ non-supersymmetric realization. To achieve this non-holomorphic modular symmetries come to…

高能物理 - 唯象学 · 物理学 2024-09-20 Takaaki Nomura , Hiroshi Okada , Oleg Popov

We consider the scenario in which neutrino data are explained by the interplay of type I and II seesaw terms in the Majorana neutrino mass matrix ${\cal M}_\nu = {\cal M}_L - {\cal M}_D {\cal M}_R^{-1} {\cal M}_D^T$. We construct a…

高能物理 - 唯象学 · 物理学 2011-05-05 Shao-Long Chen , Michele Frigerio , Ernest Ma

We present a Dirac scotogenic-like one loop radiative model where the stability of dark matter is intricately linked to the breaking of $A_4$ flavor symmetry. This breaking induces a $Z_2$ dark symmetry, stabilizing the dark matter…

高能物理 - 唯象学 · 物理学 2025-10-14 Ranjeet Kumar , Newton Nath , Rahul Srivastava , Sushant Yadav

We present a Majorana scotogenic-like loop framework in which neutrino mass generation and dark matter stability are intrinsically connected to the breaking of the discrete flavor symmetry $A_4$. This breaking leads to the emergence of the…

高能物理 - 唯象学 · 物理学 2025-11-25 Ranjeet Kumar , Hemant Kumar Prajapati , Rahul Srivastava , Sushant Yadav

We investigate neutrino mass model based on $A_4$ discrete flavor symmetry in type-I+II seesaw framework. The model has imperative predictions for neutrino masses, mixing and $CP$ violation testable in the current and upcoming neutrino…

高能物理 - 唯象学 · 物理学 2019-07-29 Surender Verma , Monal Kashav , Shankita Bhardwaj

We propose a flavour model based on an $A_4$ symmetry combined with a type-II seesaw mechanism for neutrino mass generation. The resulting neutrino mass matrix obeys a sum rule that, together with the measured mass-squared differences,…

高能物理 - 唯象学 · 物理学 2026-03-16 Salvador Centelles Chuliá , Ranjeet Kumar

A see-saw scenario for an $A_4$ flavour symmetric standard model is presented. The latter, compared with the standard model, has an extended field content adopting now an additional $A_4$ symmetry structure (along with the standard model…

高能物理 - 唯象学 · 物理学 2017-09-14 Dinh Nguyen Dinh , Nguyen Anh Ky , Phi Quang Văn , Nguyen Thi Hông Vân

We search for predictability of lepton masses and mixing patterns of type-II seesaw scenario in a non-holomorphic modular $A_4$ symmetry recently proposed by Qu and Ding. We propose three types of minimum predictive models with different…

高能物理 - 唯象学 · 物理学 2025-03-13 Takaaki Nomura , Hiroshi Okada
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