Zobrazeno 1 - 10
of 181
pro vyhledávání: '"Kitabayashi, Teruyuki"'
The scaling relations in the two-zero textures of the neutrino mass matrices in the minimal extended seesaw mechanism were discovered by Kumar and Patgiri. We demonstrate that some of these scaling relations can be satisfied without requiring two zer
Externí odkaz:
http://arxiv.org/abs/2410.20115
The Leo T dwarf galaxy has been utilized to investigate the heating of interstellar medium gas by both primordial black holes (PBHs) and dark matter (DM) particles. Previous studies have typically assumed that either PBHs or DM particles are responsi
Externí odkaz:
http://arxiv.org/abs/2409.03981
Autor:
Hyodo, Yuta, Kitabayashi, Teruyuki
The primitive Pythagorean triples are the three natural numbers $(a, b, c)$ that satisfy $c^2=a^2+b^2$ in a right triangle. We constructed a neutrino mixing models related to primitive Pythagorean triples that satisfy the observed values within the $
Externí odkaz:
http://arxiv.org/abs/2405.19605
Autor:
Hyodo, Yuta, Kitabayashi, Teruyuki
Recently, the precise observations have yielded values for the neutrino mixing angles, denoted as ${\theta}_{12}$ and ${\theta}_{13}$. Therefore, constructing a neutrino mixing model capable of accurately reflecting a these measurements is crucial. I
Externí odkaz:
http://arxiv.org/abs/2310.17941
Autor:
Kitabayashi, Teruyuki
Publikováno v:
Phys. Dark Univ. 45, 101506 (2024)
The lightest $Z_2$ odd particle in the scotogenic model, referred to as scotogenic dark matter (DM), is a widely studied candidate for DM. This scotogenic DM is generated through well-known thermal processes as well as via the evaporation of primordi
Externí odkaz:
http://arxiv.org/abs/2309.01883
We examine the properties of composite octet baryons in the nuclear medium and neutron star matter. The internal quark-diquark structure of the octet baryons and the equations of state of nuclear matter and neutron star matter in the mean field appro
Externí odkaz:
http://arxiv.org/abs/2308.13179
The trimaximal mixing scheme is one of the widely studied neutrino mixing schemes. However, the predicted solar neutrino mixing angle $\theta_{12}$ and the reactor neutrino mixing angle $\theta_{13}$ cannot simultaneously realize their best-fit value
Externí odkaz:
http://arxiv.org/abs/2306.13243
Autor:
Kitabayashi, Teruyuki
Publikováno v:
Phys. Rev. D 108, 043514 (2023)
Although the hybrid natural inflation is a successful inflation model, the symmetry breaking scale in the model should be large for a negative value of the running of the scalar spectral index. This study proposed a generalized hybrid natural inflati
Externí odkaz:
http://arxiv.org/abs/2305.03905
Autor:
Hyodo, Yuta, Kitabayashi, Teruyuki
The magic textures are successful candidates of the correct texture for the Majorana neutrinos. In this study, we show that some types of magic texture for Majorana neutrinos approximately immanent in the flavor mass matrix for Dirac neutrinos. In ad
Externí odkaz:
http://arxiv.org/abs/2208.11874
Autor:
Kitabayashi, Teruyuki
If mirror matter exists but cannot comprise all of the dark matter (DM) in the universe, we can expect that the additional DM component may only interact with the other sectors gravitationally. One of the natural candidate of a gravitationally intera
Externí odkaz:
http://arxiv.org/abs/2208.09566