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Event Date:
2019-01-24T16:00:00
2019-01-24T17:00:00
Event Location:
Hennings 201
Speaker:
Lam Hui (Columbia)
Related Upcoming Events:
Intended Audience:
Undergraduate
Local Contact:

Douglas Scott

Event Information:

We discuss the proposal that dark matter is comprised of an ultra-light axion-like particle. By ultra-light we mean a mass so small that the corresponding de Broglie wavelength is macroscopic, a sizable fraction of a galaxy. ?We will go over the particle physics motivation for this idea, in particular a derivation of the natural cosmic abundance. We will also discuss the astrophysical implications, especially ones that might help to distinguish this dark matter candidate from more conventional cold dark matter, such as WIMPs (weakly interacting massive particles).

Add to Calendar 2019-01-24T16:00:00 2019-01-24T17:00:00 The ultra-light axion: a candidate for wavy dark matter Event Information: We discuss the proposal that dark matter is comprised of an ultra-light axion-like particle. By ultra-light we mean a mass so small that the corresponding de Broglie wavelength is macroscopic, a sizable fraction of a galaxy. ?We will go over the particle physics motivation for this idea, in particular a derivation of the natural cosmic abundance. We will also discuss the astrophysical implications, especially ones that might help to distinguish this dark matter candidate from more conventional cold dark matter, such as WIMPs (weakly interacting massive particles). Event Location: Hennings 201