Deconstructing flavor anomalously
arxiv(2024)
摘要
Flavor deconstruction refers to ultraviolet completions of the Standard Model
where the gauge group is split into multiple factors under which fermions
transform non-universally. We propose a mechanism for charging same-family
fermions into different factors of a deconstructed gauge theory in a way that
gauge anomalies are avoided. The mechanism relies in the inclusion of a
strongly-coupled sector, responsible of both anomaly cancellation and the
breaking of the non-universal gauge symmetry. As an application, we propose
different flavor deconstructions of the Standard Model that, instead of
complete families, uniquely identify specific third-family fermions. All these
deconstructions allow for a new physics scale that can be as low as few TeV and
provide an excellent starting point for the explanation of the Standard Model
flavor hierarchies.
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