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Flavor symmetric sectors and collider physics


We discuss the phenomenology of effective field theories with new scalar or vector representations of the Standard Model quark avor symmetry group, allowing for large avor breaking involving the third generation. Such field content can have a relatively low mass scale ≲ TeV and O(1) couplings to quarks, while being naturally consistent with both avor violating and avor diagonal constraints. These theories therefore have the potential for early discovery at LHC, and provide a avor safe \tool box" for addressing anomalies at colliders and low energy experiments. We catalogue the possible avor symmetric representations, and consider applications to the anomalous Tevatron t t̄ forward backward asymmetry and Bs mixing measurements, individually or concurrently. Collider signatures and constraints on avor symmetric models are also studied more generally. In our examination of the t t̄ forward backward asymmetry we determine model independent acceptance corrections appropriate for comparing against CDF data that can be applied to any model seeking to explain the t t̄, forward backward asymmetry. © 2011 SISSA.

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