Events Daily

Wednesday, April 12, 2023

HEP Journal Club
Event Type: Other
Time: 12:30 PM - 1:30 PM
Location: 726 Broadway, 940, CCPP Seminar

Axions in quantum field theory and quantum gravity
Matt Reece, Harvard
Event Type: HEP Seminar
Time: 2:00 PM - 3:00 PM
Location: 726 Broadway, 940, CCPP Seminar
Abstract: Axions are of great interest as a potential solution to the Strong CP problem and a potential dark matter candidate. They are known to be common in string theory constructions. It can be useful to think of axions as gauge fields for a (-1)-form generalized global symmetry, namely, instanton number. I will use this viewpoint to discuss how axions interact with magnetic monopoles in QFT (and relatedly, why the axion coupling to photons is quantized), and to propose an explanation of the ubiquity of axions in quantum gravity.

Link to the Event Video

Cosmic Happy Hour
Event Type: Off-campus Event
Time: 8:00 PM - 9:00 PM
Location: Book Club, 197 East 3rd Street
Abstract: Join us for a night of intrigue and science as we discuss all things astronomy. Grab a drink, sit back, make a friend, and enjoy our featured guest speaker of the evening, Cara Giovanetti! Cara Giovanetti studies dark matter as a Ph.D. candidate at New York University. Cara focuses on dark matter signals that come from the early universe, using computational tools and existing data to learn more about this mysterious type of matter. Cara also participates in a variety of science outreach, and has appeared on NSF Discovery Files and The Academic Minute podcasts. Cara will give us all an introduction to one of the most exciting and pressing open questions in physics today: what is dark matter? We’ll hear about some of the bizarre astrophysical phenomena that point towards the existence of dark matter, and get some insight into why physicists are so interested in this enigmatic particle. Link: