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Accidental Supersymmetry and the Renormalization of Co-dimension 2 Branes

In this talk, I'll give a brief summary of how one-loop
bulk effects
renormalize both bulk and brane effective interactions for geometries sourced by codimension-two
branes. I'll then discuss what these results imply for a six-dimensional
supergravity model which aims to capture the features that make extra-dimensional
physics attractive for understanding naturalness issues in particle physics.
I'll also emphasize the role that brane back-reaction plays in yielding
unexpected results, and present a one-loop contribution to the 4D vacuum energy
whose size is set by the KK scale.

Event Type: 
Scientific Area(s): 
Event Date: 
Vendredi, Décembre 14, 2012 - 13:00 to 14:30
Bob Room
Room #: