5 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…
Primordial Black Hole Formation via Inverted Bubble Collapse
Kai Murai, Kodai Sakurai, Fuminobu Takahashi
We propose a novel mechanism of primordial black hole (PBH) formation through inverted bubble collapse. In this scenario, bubbles nucleate sparsely in an incomplete first-order pha…
Composite 2-Higgs Doublet Model: Strong Effects on Higgs Pair Production
Stefania De Curtis, Luigi Delle Rose, Felix Egle +3
We show how effects of compositeness emerging in a Composite 2-Higgs Doublet Model can enter Standard Model (SM)-like Higgs pair production at the Large Hadron Collider in both res…
Thermal Production of Axions from Heavy Higgs Bosons
Kodai Sakurai, Fuminobu Takahashi
We discuss the thermal production of axions in renormalizable models involving two Higgs doublet fields and a complex singlet field with a global Peccei-Quinn symmetry, i.e.…
Stimulated Emission of Dark Matter via Thermal Scattering: Novel Limits for Freeze-In and eV Cold Dark Matter
Kodai Sakurai, Wen Yin
Recently, one of the present authors noticed a stimulated emission process of bosonic dark matter via the two-body decay of a mother particle in a thermal plasma similar to the ope…