Visible light exposure of galaxy cluster Abell 2744 from NASA/ESA Hubble Space Telescope and ESO's Very Large Telescope, X-ray data from NASA's Chandra X-ray Observatory & math reconstruction of dark matter location. D. Coe & J. Merten/ESO/NASA/ESA/CXC
Theory Seminar

Physics Theory Seminar with Chien Yeah Seng on Semileptonic Decay

Chien Yeah Seng (Hosted by Pastore) from University of Washington, FRIB, will be presenting the seminar "Current Status of the First-Row CKM Unitarity from Semileptonic Decay Processes"

Several significant anomalies are recently observed in the semileptonic decays of mesons, nucleon and nuclei, in particular the apparent violation of the Cabibbo-Kobayashi-Maskawa (CKM) matrix unitarity involving the matrix elements Vud and Vus. In this talk, I will briefly review the major breakthroughs from theory and experiment that lead to such observations, and the future improvements required to bring us even closer to a confirmed discovery of physics beyond the Standard Model (BSM).

Zoom link available upon request at physics@wustl.edu.