13 citations · 22 across the 9 of their papers we have counts for
9 papers
Sommerfeld Enhancement in Spin-1 Electroweak Dark Matter
Tomohiro Abe, Motoko Fujiwara, Junji Hisano
We study a renormalizable spin-1 electroweakly interacting dark matter (DM) model in which the DM particle is the neutral component of a -odd triplet vector…
A radiative neutrino mass model with semi-annihilating boosted dark matter
Motoko Fujiwara, Takashi Toma
Boosted dark matter can provide a distinctive signature of a non-minimal dark sector. In this work, we construct a radiative neutrino mass model that allows for the production of b…
Dark matter spikes with strongly self-interacting particles
Boris Betancourt Kamenetskaia, Motoko Fujiwara, Alejandro Ibarra +1
An unavoidable prediction of scenarios with Dark Matter (DM) self-interactions is the existence of number changing processes that convert initial DM particles into final on…
Resummed multi-line gamma-ray spectra for Cherenkov Telescopes from heavy spin-1 dark matter
Motoko Fujiwara, Martin Vollmann
Electroweakly interacting stable spin-1 particle in the TeV mass range can be a dark matter candidate with rich testability. In particular, one or even two gamma-ray line-…
Boosted dark matter from semi-annihilations in the galactic center
Boris Betancourt Kamenetskaia, Motoko Fujiwara, Alejandro Ibarra +1
In some scenarios, the dark matter relic abundance is set by the semi-annihilation of two dark matter particles into one dark matter particle and one Standard Model particle. These…
Neutrino Diffusion within Dark Matter Spikes
Motoko Fujiwara, Gonzalo Herrera, Shunsaku Horiuchi
Multi-messenger observations of astrophysical transients provide powerful probes of the underlying physics of the source as well as beyond the Standard Model effects. We explore tr…