New Flavor Interactions at the LHC

Understand

For a new family-nonuniversal gauge interaction to be accessible at the LHC it will most likely couple preferentially to the third family.

• By coupling to all members of the third family the production of a new gauge boson (the $X$ with $M_X\approx1$ TeV) will lead to final states with a distinctive $\tau^+\tau^-$ pair.
• We study the mass reconstruction of the $X$ and the cuts that can enhance signal to background.
• The $X$ boson should be associated with the physics of flavor and in the simplest picture a fourth family.