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Department of Physics and Astronomy

Nuclear, Astro and Particle Physics Seminars

These lectures feature speakers from around the country and globe. Each seminar lasts about an hour and takes a closer look at more specialized fields in various realms of physics and astronomy.

Many seminars will be held in a hybrid format and a recurring Zoom link is provided to access the virtual format.

The talks will be on Wednesdays at 4PM in the Rogers Room (Jones PSC 409).

Upcoming Seminar (Fall 2025):

CP Violation and Baryon Spin-Flavor Symmetry

Speaker: Thomas Richardson
Affiliation: UC Berkeley & Lawrence Berkeley National Laboratory
Date: 10/08

Abstract: 

The Standard Model does not generate enough flavor-diagonal CP violation to explain the matter-antimatter asymmetry in the universe. Low-energy experiments that measure neutron and nuclear electric dipole moments can strongly constrain possible sources of CP violation beyond the Standard Model. However, these are subject to several unknowns such as CP violating pion-nucleon couplings often captured in chiral perturbation theory. Here, we give constraints on these couplings and examine the nucleon EDM using the spin-flavor symmetry that emerges in the large-Nc limit of QCD.

 

Spring 2025 Calendar:

Date Speaker Title of Seminar
09/24 Mehrnoosh Tahani First Light from Dragonfly Polarimetry
10/08 Thomas Richardson CP Violation and Baryon Spin-Flavor Symmetry

Challenge the conventional. Create the exceptional. No Limits.

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