6 papers
Gravitational waves from self-resonance during reheating with a quantum-corrected inflaton potential
Tomoya Inada, Noel Jonathan Jobu, Kenji Nishiwaki +2
We investigate how localized quantum corrections to the inflaton potential affect preheating dynamics and the resulting stochastic gravitational wave (GW) spectrum. When these corr…
A simple solution to the monopole problem: SU(5) GUT with symmetry breaking into special subgroup
Yu Hamada, Naoki Yamatsu
Grand unified theories (GUTs) predict the overproduction of magnetic monopoles, leading to the so-called monopole problem, which is often addressed by cosmological inflation that d…
Family Unification in Grand Unification
Cheng-Wei Chiang, Tianjun Li, Naoki Yamatsu
We propose a unified model for the three Standard Model (SM) gauge symmetries and family symmetry based on grand unified gauge symmetry on six-dimensional (6D) spa…
Origin of CKM matrix and natural FCNC suppression in gauge-Higgs unification
Yutaka Hosotani, Shuichiro Funatsu, Hisaki Hatanaka +2
In the gauge-Higgs unification in the Randall-Sundrum warped space the mixing in the couplings in the quark sector is induced by masses of $SO(…
Coupling Sum Rules and Oblique Corrections in Gauge-Higgs Unification
Yutaka Hosotani, Shuichiro Funatsu, Hisaki Hatanaka +2
In GUT inspired gauge-Higgs unification (GHU) in the Randall-Sundrum warped spacetime, the and couplings of all 4D fermion modes become…
Pseudo-Nambu-Goldstone Dark Matter in Grand Unification
Cheng-Wei Chiang, Koji Tsumura, Yoshiki Uchida +1
We propose a grand unified theory (GUT) pseudo-Nambu-Goldstone boson (pNGB) dark matter (DM) model based on gauge symmetry. In the GUT model, the Standard Model (SM) gauge…