Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Local $SU(2) \times U(1)$ Quark Flavor Symmetry in the RS Bulk   We propose a model of quark flavor based on an additional $SU(2)\times U(1)$
local symmetry in a warped extra dimensional bulk. In contrast to other works,
we break the additional gauge symmetry in the bulk via two complex scalars
which acquire bulk vevs, rather than relying on brane-localized symmetry
breaking. A gauge-covariant Kaluza-Klein decomposition of a theory with a bulk
spontaneously broken gauge symmetry is performed, and exact expressions for the
bulk profiles of all physical particles in such systems are given. The SM quark
masses and mixings are then recreated using gauge-covariant bulk quark mass
terms and Yukawa-like couplings to the new bulk scalars. A numerical sampling
of points in the model parameter space that recreate the quark masses and
mixings is performed at a KK scale of $M_{KK} =5$ TeV. We then compute the
$\Delta F = 2$ 4-quark operators arising from our new flavor gauge bosons and
scalars, and those arising from Kaluza-Klein modes of SM gauge bosons. By
decoupling one of our bulk scalar fields to all quark fields except the
right-handed up-like sector, we find that it is possible to greatly suppress
tree-level contributions to the highly constrained Kaon mixing parameters.
Instead, the dominant constraints on the model emerge from neutral $B_d$ and
$D$ meson mixing. These constraints are explored with our numerical sampling of
the model parameter space, and the specific contribution of the new flavor
gauge bosons and scalars is discussed. We find that for a significant range of
realistic flavor gauge couplings, the new gauge bosons compete with the
normally dominant gluon flavor-changing currents, but flavor-changing operators
emerging from the bulk scalar fields are highly suppressed. Finally, we briefly
comment on flavor constraints that are independent of the flavor gauge sector
arising from the $Z \bar{b}_L b_L$ coupling and rare top decays.

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The categories of this paper are: q-bio
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The categories of this paper are: econ
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The categories of this paper are: bayes-an
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The categories of this paper are: patt-sol
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The categories of this paper are: eess
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The categories of this paper are: gr-qc
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The categories of this paper are: stat
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The categories of this paper are: hep-lat
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The categories of this paper are: hep-th
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The categories of this paper are: astro-ph
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The categories of this paper are: adap-org
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The categories of this paper are: math-ph
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The categories of this paper are: dg-ga
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The categories of this paper are: plasm-ph
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The categories of this paper are: funct-an
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The categories of this paper are: physics