Events Calendar
WIMP Miracle: in Principle and in Practice
Tuesday September 17, 2013
| 2:00 pm
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Presenter: | Rouzbeh Allahverdi (UNM) |
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| Series: | Nuclear, Particle, Astroparticle and Cosmology (NUPAC) Seminars | |
| Abstract: |
Weakly Interacting Massive Particles (WIMPs) are promising candidates for dark matter in the universe. An attractive feature of WIMPs, dubbed "WIMP miracle", is that thermal freeze-out of their annihilation in the early universe may yield a relic density in the ballpark of the value inferred from cosmological observations.
I start this talk by a brief review of WIMP miracle as a general idea and in the context of specific models. Then I discuss theoretical assumptions and experimental challenges of this scenario. I argue that this motivates serious consideration of alternative mechanisms for producing dark matter relic abundance. I present one such scenario, called "Non-thermal dark matter", that arises when the universe has a non-standard thermal history. |
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| Host: | Rouzbeh Allahverdi | |
| Location: | PAIS-2540, PAIS | |
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