15 citations · 34 across the 13 of their papers we have counts for
5 papers · 1 filter
Comprehensive Bayesian Exploration of Froggatt-Nielsen Mechanism
Masahiro Ibe, Satoshi Shirai, Keiichi Watanabe
The Froggatt-Nielsen (FN) mechanism successfully explains the hierarchical structure of fermion Yukawa couplings by introducing a U(1) flavor symmetry with distinct charge assignme…
Nucleon Decay as a Probe of Flavor Symmetry: The Case of Fake Unification
Masahiro Ibe, Satoshi Shirai, Keiichi Watanabe
This paper explores nucleon decay within the framework of a "fake Grand Unified Theory (GUT)" combined with the Froggatt-Nielsen (FN) mechanism. In this fake GUT framework, quarks…
Gravitational Waves from Metastable Cosmic Strings in Supersymmetric New Inflation Model
Akifumi Chitose, Masahiro Ibe, Shunsuke Neda +1
Recent observations by pulsar timing arrays (PTAs) indicate a potential detection of a stochastic gravitational wave (GW) background. Metastable cosmic strings have been recognized…
Small Instanton Effects on Composite Axion Mass
Takafumi Aoki, Masahiro Ibe, Satoshi Shirai +1
This paper investigates the impact of small instanton effects on the axion mass in composite axion models. In particular, we focus on the Composite Accidental Axion (CAA) models, w…
Constraining neutrino-DM interactions with Milky Way dwarf spheroidals and supernova neutrinos
Sean Heston, Shunsaku Horiuchi, Satoshi Shirai
We constrain the neutrino-dark matter cross section using properties of the dark matter density profiles of Milky Way dwarf spheroidal galaxies. The constraint arises from core-col…