Zobrazeno 1 - 10
of 331
pro vyhledávání: '"Chun, Eung Jin"'
We show that a pseudo-Nambu-Goldstone boson (pNGB) with an initial misalignment angle can drive successful spontaneous baryogenesis, and become a good dark matter candidate if the corresponding global symmetry is non-restored at high temperatures. Co
Externí odkaz:
http://arxiv.org/abs/2406.04180
We consider most general effective Lagrangian up to dimension five, built with Standard Model~(SM) fields and right-handed neutrinos~(RHNs) $N_i$. Assuming that the RHNs are present near the electroweak scale, we study the phenomenology of the RHNs a
Externí odkaz:
http://arxiv.org/abs/2401.05174
Autor:
Chun, Eung Jin, Jung, Tae Hyun
We propose a leptogenesis scenario where baryon asymmetry generation is assisted by the kinetic motion of the majoron, $J$, in the process of lepton-number violating inverse decays of a right-handed neutrino, $N$. We investigate two distinct scenario
Externí odkaz:
http://arxiv.org/abs/2311.09005
We review the problem of flavour tracing back to the days when the standard model was just coming together. We focus on the recently discussed new solutions of this problem, namely models based on the discrete $\mathcal{Z}_{\rm N} \times \mathcal{Z}_
Externí odkaz:
http://arxiv.org/abs/2308.14811
We explore the possibility of embedding thermal leptogenesis within a first-order phase transition (FOPT) such that RHNs remain massless until a FOPT arises. Their sudden and violent mass gain allows the neutrinos to become thermally decoupled, and t
Externí odkaz:
http://arxiv.org/abs/2305.10759
Publikováno v:
Phys. Rev. D 108, 115035, 2023
We first time show that a common solution to dark matter and the flavor problem of the standard model can be obtained in the framework of the $\mathcal{Z}_{\rm N} \times \mathcal{Z}_{\rm M}$ flavor symmetry where the flavonic Goldstone boson of this
Externí odkaz:
http://arxiv.org/abs/2303.10125
Publikováno v:
JHEP08(2023)130
In the Dynamical Scotogenic Model, the global $B-L$ symmetry is supposed to be broken spontaneously resulting in a massless Goldstone boson called majoron, and massive right handed neutrinos which participate in the generation of light neutrino masss
Externí odkaz:
http://arxiv.org/abs/2303.02681
Publikováno v:
JHEP 02 (2023) 103
We investigate boosted displaced signatures in the Type-I seesaw mechanism associated with the $B-L$ gauge symmetry. Such events arise from decays of right-handed neutrinos depending on their Yukawa couplings and masses. Considering two scenarios: (a
Externí odkaz:
http://arxiv.org/abs/2205.12511
Autor:
Chun, Eung Jin, Yun, Seokhoon
Publikováno v:
Phys. Rev. D 106 (2022), 095027
Interactions with a background medium modify in general the dispersion relation and canonical normalization of propagating particles. This can have an important phenomenological consequence when considering light dark matter coupling to quarks and le
Externí odkaz:
http://arxiv.org/abs/2205.03617
We explore supersymmetric SO(10) models predicting observable proton decay and various topological defects which produce different shapes and strengths of gravitational wave backgrounds depending on the scales of intermediate symmetry breaking and in
Externí odkaz:
http://arxiv.org/abs/2112.14483