12 citations · 12 across the 5 of their papers we have counts for
6 papers · 1 filter
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…
Sommerfeld enhancement from unstable final-state particles in dark matter annihilation
Tomohiro Abe, Ryosuke Sato, Takumu Yamanaka
We study the Sommerfeld enhancement of the annihilation cross section of dark matter into heavier unstable particles. In this process, the annihilation products become non-relativi…
Tiny yet detectable WIMP-nucleon scattering cross sections in a pseudo-Nambu-Goldstone dark matter model
Tomohiro Abe, Kota Ichiki
We investigate a pseudo-Nambu-Goldstone (pNG) dark matter (DM) model based on a gauged and a global symmetries. These symmetries are spontaneously broken to a g…
Composite Dark Matter with Forbidden Annihilation
Tomohiro Abe, Ryosuke Sato, Takumu Yamanaka
A dark matter model based on QCD-like gauge theory with electroweakly interacting dark quarks is discussed. Assuming the dark quark mass is smaller than the dynamical…
A model of pseudo-Nambu-Goldstone dark matter with two complex scalars
Tomohiro Abe, Yu Hamada, Koji Tsumura
Pseudo-Nambu-Goldstone (pNG) dark matter (DM) is a promising DM candidate and able to explain the measured DM abundance by the thermal freeze-out mechanism evading the stringent bo…
Gravitational Wave Signatures of a Chiral Fermion Dark Matter Model
Tomohiro Abe, K. S. Babu, Ajay Kaladharan
Theories in which the dark matter (DM) candidate is a fermion transforming chirally under a gauge symmetry are attractive, as the gauge symmetry would protect the DM mass. In such…