11 papers
Radiative corrections to decays of the 125 GeV Higgs boson in the complex Higgs triplet model
Masashi Aiko, Shinya Kanemura, Mariko Kikuchi +3
The extension of the Higgs sector with an additional complex triplet field is often considered for generating the neutrino mass by the Type-II seesaw mechanism. Such an extension g…
Gravitational waves from supermassive right-handed neutrinos produced at preheating
Shinya Kanemura, Kunio Kaneta, Dibyendu Nanda
The post-inflationary production of supermassive particles can have profound implications for the thermal history of the universe and may leave observable imprints in the gravitati…
Asteroid-mass soliton as the dark matter-baryon coincidence solution
Shinya Kanemura, Shao-Ping Li, Ke-Pan Xie
Nontopological solitons formed during first-order phase transitions can serve as macroscopic dark matter candidates, with their stability ensured by a charge asymmetry traditionall…
Classification of Higgs sectors from group theoretical properties of UV gauge theories
Shinya Kanemura, Yushi Mura, Tetsuo Shindou
Extended Higgs sectors are often introduced to explain phenomena beyond the standard model (BSM). The existence of multiple scalar fields may cause the Landau pole below the Planck…
The mass-coupling effect in leptogenesis
Shinya Kanemura, Shao-Ping Li
Particle decay in leptogenesis provides a simple avenue to explain the baryon asymmetric universe, where the decaying particle can provide the out-of-equilibrium condition to creat…
Bounds and detection of MeV-scale dark matter annihilation to neutrinos
Shinya Kanemura, Shao-Ping Li, Dibyendu Nanda
Current and most upcoming neutrino detectors can only reach a dark matter annihilation cross section to neutrinos larger than the standard freeze-out value, but they open intriguin…