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Space Sciences Seminar

November 21
Dr. Shin'ichiro Ando
Caltech

Probing particle dark matter with gamma-ray and neutrino telescopes

Many observations indicate the existence of nonbaryonic dark matter, which is the dominant matter component of the Universe. While there are several candidates from particle physics models, we still do not know the true identity of dark matter. In this talk, I introduce several approaches to potentially reveal the fundamental properties of dark matter using both gamma-ray and neutrino telescopes (e.g., Fermi for gamma rays, IceCube for neutrinos). They include:
  1. Possibility of detecting gamma-ray signals from dark-matter annihilation in Milky Way subhalos.
  2. Contribution to the diffuse gamma-ray background from dark matter annihilation.
  3. Upper bound on total annihilation cross section using neutrinos.
  4. Charged massive (next-to-lightest) particle detection with neutrino telescope.
(McDonnell Center for the Space Sciences Seminar)

 

Coffee: 2:00 PM, 241 Compton         Lecture: 2:15 PM, 241 Compton