Zobrazeno 1 - 10
of 588
pro vyhledávání: '"KOVALENKO, SERGEY A."'
Autor:
Abada, Asmaa, Bernal, Nicolás, Hernández, Antonio E. Cárcamo, Kovalenko, Sergey, de Melo, Téssio B., Toma, Takashi
In this talk, we discuss the phenomenology of radiative 3-loop seesaw models. The 3-loop suppression allows the new particles to have masses at the TeV scale, along with relatively large Yukawa couplings, while retaining consistency with neutrino mas
Externí odkaz:
http://arxiv.org/abs/2411.00020
Autor:
C., Paulo Areyuna, Hernández, A. E. Cárcamo, N., Vishnudath K., Kovalenko, Sergey, Pasechnik, Roman, Schmidt, Iván
We propose an extended Left-Right symmetric model with an additional global symmetry $U(1)_X$, which after spontaneous symmetry breaking collapses to a residual subgroup $\mathbb{Z}_2$, ensuring that the light active neutrino masses are generated via
Externí odkaz:
http://arxiv.org/abs/2405.12283
Autor:
Abada, Asmaa, Bernal, Nicolás, Hernández, Antonio E. Cárcamo, Kovalenko, Sergey, de Melo, Téssio B., Toma, Takashi
Radiative seesaw models are examples of interesting and testable extensions of the Standard Model to explain the light neutrino masses. In radiative models at 1-loop level, such as the popular scotogenic model, in order to successfully reproduce neut
Externí odkaz:
http://arxiv.org/abs/2405.12242
Autor:
Hernández, A. E. Cárcamo, Velásquez, Yocelyne Hidalgo, Kovalenko, Sergey, Pérez-Julve, Nicolás A., Schmidt, Ivan
We propose two versions of radiative linear seesaw models, where electrically charged scalars and vector-like leptons generate the Dirac neutrino mass submatrix at one and two loop levels. In these models, the SM charged lepton masses are generated f
Externí odkaz:
http://arxiv.org/abs/2403.05637
Autor:
Abada, Asmaa, Bernal, Nicolás, Hernández, Antonio E. Cárcamo, Kovalenko, Sergey, de Melo, Téssio B.
We propose a class of models providing an explanation of the origin of light neutrino masses, the baryon asymmetry of the Universe via leptogenesis and offering viable dark matter candidates. In these models the Majorana masses of the active neutrino
Externí odkaz:
http://arxiv.org/abs/2312.14105
Autor:
Bonilla, Cesar, Hernández, A. E. Cárcamo, Sáez, Bastián Díaz, Kovalenko, Sergey, González, Juan Marchant
Publikováno v:
Physics Letters B, 847, 138282 (2023)
We propose a Majoron-like extension of the Standard Model with an extra global $U(1)_X$-symmetry where neutrino masses are generated through an inverse seesaw mechanism at the 1-loop level. In contrast to the tree-level inverse seesaw, our framework
Externí odkaz:
http://arxiv.org/abs/2306.08453
Autor:
Bonilla, Cesar, Hernández, A. E. Cárcamo, Kovalenko, Sergey, Lee, H., Pasechnik, R., Schmidt, Ivan
Publikováno v:
JHEP 12 (2023) 075
We present a Left-Right symmetric model that provides an explanation for the mass hierarchy of the charged fermions within the framework of the Standard Model. This explanation is achieved through the utilization of both tree-level and radiative sees
Externí odkaz:
http://arxiv.org/abs/2305.11967
Autor:
Kovalenko, Sergey, Simkovic, Fedor
We propose a Quantum Field Theory (QFT) approach to neutrino oscillations in vacuum. The neutrino emission and detection are identified with the charged-current vertices of a single second-order Feynman diagram for the underlying process, enclosing n
Externí odkaz:
http://arxiv.org/abs/2212.13635
Autor:
Abada, Asmaa, Bernal, Nicolás, Hernández, Antonio E. Cárcamo, Kovalenko, Sergey, de Melo, Téssio B., Toma, Takashi
We propose a scotogenic model for generating neutrino masses through a three-loop seesaw. It is a minimally extended inert doublet model with a spontaneously broken global symmetry $U(1)'$ and a preserved $\mathbb{Z}_2$ symmetry. The three-loop suppr
Externí odkaz:
http://arxiv.org/abs/2212.06852
Publikováno v:
JHEP 08 (2022) 023
It is well-known that at tree-level the d=5 Weinberg operator can be generated in exactly three different ways, the famous seesaw models. In this paper we study the related question of how many phenomenologically consistent 1-loop models one can cons
Externí odkaz:
http://arxiv.org/abs/2205.13063