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Related papers: Predictive $S_4$ flavon model with $\text{TM}_1$ m…

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We have studied the scenario of baryogenesis via leptogenesis in an $A_4$ flavor symmetric framework considering type I seesaw as the origin of neutrino mass. Because of the presence of the fifth generation right handed neutrino the model…

High Energy Physics - Phenomenology · Physics 2018-03-23 Ananya Mukherjee , Mrinal Kumar Das , Jayanta Kumar Sarma

We construct two flavor models based on $S_4$ family symmetry and generalised CP symmetry. In both models, the $S_4$ family symmetry is broken down to the $Z^{SU}_2$ subgroup in the neutrino sector, as a consequence, the trimaximal…

High Energy Physics - Phenomenology · Physics 2014-02-19 Cai-Chang Li , Gui-Jun Ding

We study a neutrino mass model based on $S_4$ flavor symmetry which accommodates lepton mass, mixing with non-zero $\theta_{13}$ and CP violation phase. The spontaneous symmetry breaking in the model is imposed to obtain the realistic…

High Energy Physics - Phenomenology · Physics 2016-04-20 V. V. Vien

We derive and discuss the solution of the Boltzmann equations for leptogenesis in a phenomenologically viable SU(5) x A5 golden ratio flavour model proposed in arXiv:1410.2057 [hep-ph], arXiv:1502.00110 [hep-ph] . The model employs, in…

High Energy Physics - Phenomenology · Physics 2015-09-01 Julia Gehrlein , Serguey T. Petcov , Martin Spinrath , Xinyi Zhang

We construct a low-scale seesaw model to generate the masses of active neutrinos based on $S_4$ flavor symmetry supplemented by the $Z_2 \times Z_3 \times Z_4 \times Z_{14}\times U(1)_L$ group, capable of reproducing the low energy Standard…

High Energy Physics - Phenomenology · Physics 2019-11-27 V. V. Vien , H. N. Long , A. E. Cárcamo Hernández

We introduce a lepton mass generation and flavor mixing model, realized through a (2,3) inverse seesaw structure based on modular \( S_4 \) symmetry. The model employs modular forms to construct the lepton Yukawa couplings, significantly…

High Energy Physics - Phenomenology · Physics 2025-09-23 Abhishek , V. Suryanarayana Mummidi

I proposed a unified model of particle physic and cosmology in \cite {1}, which can simultaneously account for these origin of the inflation, dark energy, dark matter, neutrino mass and baryon asymmetry. I here focus on the fermion flavor…

General Physics · Physics 2025-10-23 Wei-Min Yang

Motivated by the crucial role played by the discrete flavour symmetry groups in explaining the observed neutrino oscillation data, we consider the $A_4$ realization of linear seesaw by extending the standard model (SM) particle content with…

High Energy Physics - Phenomenology · Physics 2018-09-26 M. Sruthilaya , Rukmani Mohanta , Sudhanwa Patra

We construct a neutrino model using the flavour group $S_4\times C_4 \times C_3\times C_2$ under the type-1 seesaw mechanism. The vacuum alignments of the flavons in the model lead to $\text{TM}_1$ mixing with $\sin…

High Energy Physics - Phenomenology · Physics 2023-03-30 R Krishnan

We propose a new neutrino flavor model based on a $D_{4}\times U(1)$ flavor symmetry providing predictions for neutrino masses and mixing along with a successful generation of the observed Baryon Asymmetry of the Universe (BAU). After the…

High Energy Physics - Phenomenology · Physics 2024-04-26 M. Miskaoui

We present a supersymmetric model with the flavour symmetry S4 x Z3 and a CP symmetry which are broken to a Z3 subgroup of the flavour symmetry in the charged lepton sector and to Z2 x CP (x Z3) in the neutrino one at leading order. This…

High Energy Physics - Phenomenology · Physics 2014-02-18 Ferruccio Feruglio , Claudia Hagedorn , Robert Ziegler

Heavy neutrinos with masses below the electroweak scale can simultaneously generate the light neutrino masses via the seesaw mechanism and the baryon asymmetry of the universe via leptogenesis. The requirement to explain these phenomena…

High Energy Physics - Phenomenology · Physics 2017-09-13 Marco Drewes , Bjorn Garbrecht , Dario Gueter , Juraj Klaric

We propose a new realisation of light Dirac neutrino mass and dark matter (DM) within the framework of a non-Abelian discrete flavour symmetry based on $A_4$ group. In addition to $A_4$, we also consider a $Z_2$ and an unbroken global…

High Energy Physics - Phenomenology · Physics 2025-02-10 Debasish Borah , Pritam Das , Biswajit Karmakar , Satyabrata Mahapatra

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…

High Energy Physics - Phenomenology · Physics 2018-12-26 Tatsuo Kobayashi , Naoya Omoto , Yusuke Shimizu , Kenta Takagi , Morimitsu Tanimoto , Takuya H. Tatsuishi

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…

High Energy Physics - Phenomenology · Physics 2019-07-29 Surender Verma , Monal Kashav , Shankita Bhardwaj

We propose two different seesaw models namely, type I and inverse seesaw to realise light Dirac neutrinos within the framework of $A_4$ discrete flavour symmetry. The additional fields and their transformations under the flavour symmetries…

High Energy Physics - Phenomenology · Physics 2018-03-28 Debasish Borah , Biswajit Karmakar

We construct an $S_4$ flavour symmetric minimal inverse seesaw model where the standard model is extended by adding two right-handed and two standard model gauge singlets neutrinos to explain the origin of tiny neutrino masses. The…

High Energy Physics - Phenomenology · Physics 2023-12-08 Bikash Thapa , Sunita Barman , Sompriti Bora , Ng. K. Francis

We present a unified framework for neutrino masses, baryogenesis, and dark matter based on a modular $S_4$ symmetry combined with a type-III seesaw mechanism. All Yukawa couplings, CP phases, and flavor textures originate from a single…

High Energy Physics - Phenomenology · Physics 2026-02-04 Abhishek , V. Suryanarayana Mummidi

We consider an extension of the Standard Model with three right-handed neutrinos, endowed with a flavour symmetry $G_f$, $G_f=\Delta (3 \, n^2)$ or $G_f=\Delta (6 \, n^2)$, $n \geq 2$, and CP. For large active-sterile mixing, we study the…

High Energy Physics - Phenomenology · Physics 2024-12-16 Marco Drewes , Yannis Georis , Claudia Hagedorn , Juraj Klaric

We study a neutrino mass model with $A_4$ discrete flavor symmetry using a type-I seesaw mechanism. The inclusion of extra flavons in our model leads to the deviations from exact tribimaximal mixing pattern resulting in a nonzero…

High Energy Physics - Phenomenology · Physics 2023-07-10 Animesh Barman , Ng. K. Francis , Hrishi Bora