CP3 lunch seminar: Physics Beyond Standard Model in Theories with Extra Dimensions.

by Priscila Aquino

Wednesday 6 Feb 2008, 13:00 → 13:50 Europe/Brussels

The Standard Model agrees to a great degree with the experimental data we have today but there are several reasons to expect new physics at the TeV scale. We start presenting the most important aspects of the Standard Model and specifying some of the problems that appear at high energies (higher than the weak scale). We focus on two such problems: the hierarchy problem and the origin of the fermion masses. We present three types of theories using extra dimensions to address the hierarchy problem: Large Extra DImensions (LED), Universal Extra Dimensions (UED) and Warped Extra Dimensions (WED). Within a WED setup, we study the resulting four-dimensional effective theory. This theories naturally explain the hierarchy of fermion masses. Within this effective theory, we study the phenomenology at the LHC as it relates to the origin of flavor. In particular, we propose a signal that can test this important aspect of the theory.