11 citations · 11 across the 1 of their papers we have counts for
19 papers
Maximally self-interacting dark matter: models and predictions
Ayuki Kamada, Hee Jung Kim, Takumi Kuwahara
We study self-interacting dark matter (SIDM) scenarios, where the -wave self-scattering cross section almost saturates the Unitarity bound. Such self-scattering cross sections a…
Strongly-interacting massive particle and dark photon in the era of intensity frontier
Ayuki Kamada, Masaki Yamada, Tsutomu T. Yanagida
A strongly interacting massive particle (SIMP) is an interesting candidate for dark matter (DM) because its self-interaction cross section can be naturally strong enough to address…
Escalating core formation with dark matter self-heating
Ayuki Kamada, Hee Jung Kim
Exothermic scatterings of dark matter (DM) produce DM particles with significant kick velocities inside DM halos. In collaboration with DM self-interaction, the excess kinetic ener…
Lessons from on inflation models: two-scalar theory and Yukawa theory
Ayuki Kamada, Takumi Kuwahara
We demonstrate two properties of the trace of the energy-momentum tensor in the flat spacetime. One is the decoupling of heavy degrees of freedom; i.e., heavy degrees o…
Unification for the Darkly Charged Dark Matter
Ayuki Kamada, Masaki Yamada, Tsutomu T. Yanagida
We provide a simple UV theory for a Dirac dark matter with a massless Abelian gauge boson. We introduce a single fermion transforming as the representation in the SO(10)$…
Constraining FIMP from the structure formation of the Universe: analytic mapping from
Ayuki Kamada, Keisuke Yanagi
A feebly interacting massive particle (FIMP), contrasting with a weakly interacting massive particle (WIMP), is an intriguing dark matter (DM) candidate. Light (keV-scale) FIMP DM…