Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Flavor Violation Tests of Warped/Composite SM in the Two-Site Approach   We study flavor violation in the quark sector in a purely 4D, two-site
effective field theory description of the Standard Model and just their first
Kaluza-Klein excitations from a warped extra dimension. The warped 5D framework
can provide solutions to both the Planck-weak and flavor hierarchies of the SM.
It is also related (via the AdS/CFT correspondence) to partial compositeness of
the SM. We focus on the dominant contributions in the two-site model to two
observables which we argue provide the strongest flavor constraints, namely,
epsilon_K and BR(b -> s gamma), where contributions in the two-site model occur
at tree and loop-level, respectively. In particular, we demonstrate that a
"tension" exists between these two observables in the sense that they have
opposite dependence on composite site Yukawa couplings, making it difficult to
decouple flavor-violating effects using this parameter. We choose the size of
the composite site QCD coupling based on the relation of the two-site model to
the 5D model (addressing the Planck-weak hierarchy), where we match the 5D QCD
coupling to the 4D coupling at the loop-level and assuming negligible
tree-level brane-localized kinetic terms. We estimate that a larger size of the
5D gauge coupling is constrained by the requirement of 5D perturbativity. We
find that \sim O(5) TeV mass scale for the new particles in the two-site model
can then be consistent with both observables. We also compare our analysis of
epsilon_K in the two-site model to that in 5D models, including both the cases
of a brane-localized and bulk Higgs.

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The categories of this paper are: adap-org
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The categories of this paper are: acc-phys
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The categories of this paper are: mtrl-th
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The categories of this paper are: bayes-an
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The categories of this paper are: chao-dyn
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The categories of this paper are: atom-ph
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The categories of this paper are: solv-int
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The categories of this paper are: nucl-ex
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The categories of this paper are: q-fin
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The categories of this paper are: alg-geom
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The categories of this paper are: hep-th
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The categories of this paper are: math-ph
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The categories of this paper are: physics
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The categories of this paper are: econ
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The categories of this paper are: q-alg
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The categories of this paper are: eess