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physics & astronomy

Stargazing at MacAdam Observatory with Tim Knauer

The University of Kentucky's own MacAdam Observatory provides students with the opportunity to use the most powerful telescopic lenses on campus and see the universe. On clear nights, students are welcome to join director Tim Knauer and his graduate assistants as they look out into the stars and observe those celestial bodies.

Here, Tim and assistants Kyle and Aaron join us to talk about running the observatory and their experiences there.

Hidden Interactions of Quarks

Dr. Bogdan Dobrescu FNAL

The quarks feel all five types of boson-mediated interactions: electromagnetic, strong, weak, Higgs and gravitational. In this talk I will discuss theoretical and experimental constraints on hypothetical new interactions among quarks. Interactions of this type can be hidden if they have a very short range, or if they are very weak, or by other mechanisms such as momentum-dependent couplings. A related question is how strongly can quarks interact with dark matter.

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