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Early kinetic decoupling of dark matter with resonant annihilation

M. Duch, Warsaw University

Wednesday, October 11, 2017
  2–3 p.m.

Location: Physics Building 3035
  Parking Information

Category: Seminar

Description: In models with resonantly enhanced dark matter annihilation, the coupling of dark sector to the visible one is suppressed with respect to non-resonant scenarios. Consequently the cross section for scattering of dark matter on light states in the thermal bath is diminished and temperatures of the kinetic and chemical decoupling are similar. Moreover, due to the resonance enhancement, dark matter annihilation is temperature dependent and can be effective, even when both sectors are decoupled. This leads to the interesting interplay between dark matter temperature and density. The resulting modifications to the calculation of dark matter relic abundance will be presented alongside the consequences for the direct and indirect detection and dark matter self-interactions.

Additional Information: Colloquia & Seminars

Open to: General Public
Admission: Free
Sponsor: Physics and Astronomy

Contact Information:
Naveen Reddy