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Physics and Astronomy

Physics & Astronomy Colloquium

3:30 PM, Friday, February 20, 2009
Room 155, Chem-Phys Building

Dr. Al Shapere
Department of Physics and Astronomy
University of Kentucky

String Theory was once believed to be so highly constrained that it might uniquely determine all the parameters in the Standard Model. However, we now know that there are a near-infinitude of possible compactifications of string theory to four dimensions, and each of these compactifications may in turn have many different low-energy limits. Given this state of affairs, does String Theory retain any predictive power? Is there a sense in which the Standard Model is a "typical" or "likely" low-energy limit?

Refreshments will be served in CP 177 at 3:15 PM