15 citations · 19 across the 7 of their papers we have counts for
7 papers · 1 filter
Revisiting Q-ball Interactions with Matters
Ayuki Kamada, Takumi Kuwahara, Keiichi Watanabe
Q-ball dark matter is one of the candidates for the macroscopic dark matter: Q-ball is a non-topological solitonic configuration, whose stability can be ensured by global charge an…
Global Neutrino Constraints on the Minimal U(1) Model
Masahiro Ibe, Satoshi Shirai, Keiichi Watanabe
We examine the minimal U(1) gauge model in light of the latest neutrino data, including neutrino oscillations, cosmological observations, direct mass measurements, and…
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…
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…
Revisiting Metastable Cosmic String Breaking
Akifumi Chitose, Masahiro Ibe, Yuhei Nakayama +2
Metastable cosmic strings appear in models of new physics with a two-step symmetry breaking , where and . They decay via the monopole-antimono…
More on Fake GUT
Masahiro Ibe, Satoshi Shirai, Motoo Suzuki +2
It is remarkable that the matter fields in the Standard Model (SM) are apparently unified into the representations. A straightforward explanation of this fact is t…