New Flavor Interactions at the LHC

Abstract

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 $M_X\approx 1$ 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. We discuss how the mass mixing between the third and fourth families affects the $X$ couplings and a possible mixing with the $Z$.

11 pages, 3 figures, improved version to appear in Physics Letters B

References in corpus (16)

• PYTHIA 6.4 Physics and Manual
• PYTHIA 6.2 Physics and Manual
• ALPGEN, a generator for hard multiparton processes in hadronic collisions
• MadEvent: Automatic Event Generation with MadGraph
• Unparticle Physics
• Another Odd Thing About Unparticle Physics
• Collider signals in unparticle physics
• Searching for H --> tau tau in weak boson fusion at the LHC
• t' at the LHC: the physics of discovery
• The discovery of the fourth family at the LHC: what if?
• Isospin Breaking and Fine Tuning in Top-Color Assisted Technicolor
• The heavy quark search at the LHC
• Hints of New Flavor Physics at LEP?
• Negative T from a dynamical left-handed neutrino mass
• A Dynamical Origin for the Top Mass
• New Third-family Flavor Physics: Vertex Corrections

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• Approaching a strong fourth family
• Diquarks from a fourth family
• Dynamical symmetry breaking, CP violation, and a Higgs-like particle