4D Effective Theory and Geometrical Approach
Abstract
Description
We consider the 4D effective theory for the light Kaluza-Klein (KK) modes. The heavy KK mode contribution is generally needed to reproduce the correct physical predictions: an equivalence, between the effective theory and the D-dimensional (or geometrical) approach to spontaneous symmetry breaking (SSB), emerges only if the heavy mode contribution is taken into account. This happens even if the heavy mode masses are at the Planck scale. In particular, we analyze a 6D Einstein-Maxwell model coupled to a charged scalar and fermions. Moreover, we briefly review non-Abelian and supersymmetric extensions of this theory.
7 pages, 2 figures. Proceeding for the Cairo International Conference on High Energy Physics (CICHEP II), 14 - 17 January 2006
7 pages, 2 figures. Proceeding for the Cairo International Conference on High Energy Physics (CICHEP II), 14 - 17 January 2006