Northwestern Events Calendar


HEP Seminar: Tongyan Lin: Three ways to shine light on dark matter

When: Monday, April 29, 2019
4:00 PM - 5:00 PM Central

Where: Technological Institute, F160, 2145 Sheridan Road, Evanston, IL 60208 map it

Audience: Faculty/Staff - Student - Public - Post Docs/Docs - Graduate Students

Contact: Pamela Villalovoz   (847) 491-3644

Group: Physics and Astronomy High Energy Physics Seminars

Category: Academic


Understanding the particle model(s) of dark matter is a major endeavor in particle physics and cosmology, and in recent years many thermal relic candidates are being constrained by experimental data. I will discuss three new ways to shed light on one minimal hypothesis: dark matter is a particle with very small electric charge, and was produced through freeze-in by rare interactions in the early universe. I will describe the journey of this dark matter particle, from its creation through plasma effects in the first minutes, through the time of recombination when dark matter free-streaming and DM-baryon scattering affect large scale structure and the CMB, and finally a peek into the future when such a dark matter particle could scatter off a phonon in proposed polar semiconductor experiments.


Seminar Speaker: Tongyan Lin, UCSD


Keywords: Physics, Astronomy, HEP

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