March 27, 2017
3:00PM
-
4:00PM
4138 Physics Research Building
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2017-03-27 14:00:00
2017-03-27 15:00:00
High Energy Physics Seminar - Jiji Fan (Brown University) "Ultralight Repulsive Dark Matter"
Ultralight scalar dark matter with mass at or below the eV scale and above 10^{-22} eV and pressure from repulsive self-interaction could form a Bose-Einstein condensate in the early Universe and maybe in galaxies as well. It has been suggested before that this scenario may provide a possible solution to the cusp/core problem and some specific model may even explain MOND phenomenology. In this talk, I will discuss some challenges facing this scenario from the particle physics model building point of view. I will also discuss some cosmological and astrophysical constraints on ultralight repulsive dark matter in terms of a parametrization motivated by particle physics considerations.
4138 Physics Research Building
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America/New_York
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Date Range
2017-03-27 15:00:00
2017-03-27 16:00:00
High Energy Physics Seminar - Jiji Fan (Brown University) "Ultralight Repulsive Dark Matter"
Ultralight scalar dark matter with mass at or below the eV scale and above 10^{-22} eV and pressure from repulsive self-interaction could form a Bose-Einstein condensate in the early Universe and maybe in galaxies as well. It has been suggested before that this scenario may provide a possible solution to the cusp/core problem and some specific model may even explain MOND phenomenology. In this talk, I will discuss some challenges facing this scenario from the particle physics model building point of view. I will also discuss some cosmological and astrophysical constraints on ultralight repulsive dark matter in terms of a parametrization motivated by particle physics considerations.
4138 Physics Research Building
America/New_York
public
Ultralight scalar dark matter with mass at or below the eV scale and above 10^{-22} eV and pressure from repulsive self-interaction could form a Bose-Einstein condensate in the early Universe and maybe in galaxies as well. It has been suggested before that this scenario may provide a possible solution to the cusp/core problem and some specific model may even explain MOND phenomenology. In this talk, I will discuss some challenges facing this scenario from the particle physics model building point of view. I will also discuss some cosmological and astrophysical constraints on ultralight repulsive dark matter in terms of a parametrization motivated by particle physics considerations.
