Events at Physics |
Events on Friday, November 15th, 2013
- Theory Seminar (High Energy/Cosmology)
- Geometry and the quantum Hall effect
- Time: 11:00 am
- Place: Chamberlin 5280
- Speaker: Dam Son, University of Chicago
- Theory Seminar (High Energy/Cosmology)
- Title to be announced
- Time: 2:00 pm
- Place: 5280 Chamberlin Hall
- Speaker: Tongyan Lin, University of Chicago
- Theory Seminar (High Energy/Cosmology)
- Flavored Dark Matter and R-Parity Violation
- Time: 2:00 pm
- Place: 5280 Chamberlin Hall
- Speaker: Tongyan Lin, University of Chicago
- Abstract: Minimal Flavor Violation offers an alternative symmetry rationale to R-parity conservation for the suppression of proton decay in supersymmetric extensions of the Standard Model. The naturalness of such theories is generically under less tension from LHC searches than R-parity conserving models. The flavor symmetry can also guarantee the stability of dark matter if it carries flavor quantum numbers. We outline general features of supersymmetric flavored dark matter (SFDM) models within the framework of MFV SUSY. A simple model of top flavored dark matter is presented. If the dark matter is a thermal relic, then nearly the entire parameter space of the model is testable by upcoming direct detection and LHC searches.
- Physics Department Colloquium
- Viscosity, Quark Gluon Plasma, and String Theory
- Time: 3:30 pm
- Place: 2241 Chamberlin Hall (coffee at 4:30 pm)
- Speaker: Dam Son, University of Chicago
- Abstract: Viscosity is a very old concept which was introduced to physics by Navier in the 19th century. However, in strongly coupled systems, viscosity is difficult to compute from first principle. In this talk I will describe some recent surprising developments in string theory which allow one to compute the viscosity for a class of strongly interacting quantum fluids not too dissimilar to the quark gluon plasma. The approach has lead to a new understanding of the effects of quantum anomalies in relativistic fluid dynamics. I will describe efforts to measure the viscosity and other physical properties of the quark gluon plasma created in relativistic heavy ion collisions.
- Host: Hashimoto