Zobrazeno 1 - 10
of 133
pro vyhledávání: '"Yoshihiko Abe"'
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 83, Iss 12, Pp 1-11 (2023)
Abstract We propose models to explain the hierarchies of the quark masses and mixing by utilizing the $$S_4^\prime $$ S 4 ′ modular flavor symmetry. The hierarchy is realized by the modulus $$\tau $$ τ stabilized at $$\textrm{Im}\,\tau \gg 1$$ Im
Externí odkaz:
https://doaj.org/article/0467fa372f67452bb3a7f6e19e96ece1
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 9, Pp 1-38 (2023)
Abstract We study black hole extremality in nonlinear electrodynamics motivated by the Weak Gravity Conjecture (WGC) and the Festina Lente (FL) bound. For illustration, we consider the Euler-Heisenberg model and the Dirac-Born-Infeld model in asympto
Externí odkaz:
https://doaj.org/article/dbad360e92be43889a3a83dc8e9f97f3
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 8, Pp 1-26 (2023)
Abstract We construct an SU(5) grand unified model in which the hierarchies of the quark and lepton masses and mixing are explained by the Γ 6 ′ $$ {\Gamma}_6^{\prime } $$ modular flavor symmetry. The hierarchies are realized by the Froggatt-Niels
Externí odkaz:
https://doaj.org/article/60e2956ba28c4be1b217a933eb2a6bf5
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 6, Pp 1-40 (2023)
Abstract We study slow-roll inflation model controlled by the modular flavor symmetry. In the model, the modulus field plays a role of inflaton and the introduction of the stabilizer field coupled to a modular form in the superpotential produces the
Externí odkaz:
https://doaj.org/article/bf4adcc896d94a798becd4a9461d8ba2
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 2, Pp 1-37 (2023)
Abstract In this work, the current stability is discussed for cosmic strings with the bosonic superconductivity. A non-vanishing curvature of string generally induce the quantum instability of the current-carrying particle. Its decay rates are explor
Externí odkaz:
https://doaj.org/article/b440af3b1fb249299762f22eb2885e64
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 1, Pp 1-28 (2023)
Abstract We consider a situation where right-handed neutrinos couple to a light scalar which is possibly a Nambu-Goldstone boson resulting from high-energy symmetry breaking. Its coupling is typically complex-valued and flavor-dependent. In this work
Externí odkaz:
https://doaj.org/article/008a461f83324707b134ca55133f13bd
Publikováno v:
Physics Letters B, Vol 842, Iss , Pp 137977- (2023)
We propose models in which the hierarchical structures of the masses and mixing in both quark and lepton sectors are explained by the S4′ modular flavor symmetry near the fixed point τ∼i∞. The model provides the first explicit example which ex
Externí odkaz:
https://doaj.org/article/3201ab5769de45d4ad50fbc546469b95
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 6, Pp 1-35 (2021)
Abstract We study the axion strings with the electroweak gauge flux in the DFSZ axion model and show that these strings, called the electroweak axion strings, can exhibit superconductivity without fermionic zeromodes. We construct three types of elec
Externí odkaz:
https://doaj.org/article/8705c2ac2d2a4d18bee61b9213698553
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 3, Pp 1-22 (2021)
Abstract A pseudo Nambu-Goldstone boson (pNGB) is a natural candidate of dark matter in that it avoids the severe direct detection bounds. We show in this paper that the pNGB has another different and interesting face with a higher symmetry breaking
Externí odkaz:
https://doaj.org/article/491a25af30884270a51167fc7696f730
Publikováno v:
Journal of High Energy Physics, Vol 2020, Iss 7, Pp 1-19 (2020)
Abstract The Majoron, the Nambu-Goldstone boson of lepton number symmetry, is an interesting candidate for dark matter as it deeply connects the dark matter and neutrino physics. In this paper, we consider the Majoron dark matter as pseudo Nambu-Gold
Externí odkaz:
https://doaj.org/article/383297e427cd499794d9115e6632275d