Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2006-12-05
Phys.Rev.Lett.98:131601,2007
Physics
High Energy Physics
High Energy Physics - Phenomenology
5 pages, final version to appear in PRL
Scientific paper
10.1103/PhysRevLett.98.131601
In Randall-Sundrum models with gauge bosons and fermions in the extra dimensional bulk, it is possible to build models of flavor by localizing the fermions in the extra dimension. Since the Higgs must be localized at or close to the TeV scale fixed point, heavier fermions must be localized close to this brane. The first Kaluza-Klein excitations of the gauge bosons are also TeV-localized, so they have stronger couplings to heavier fermions leading to tree-level flavor-violating couplings. We investigate the potential of the LHC to observe flavor violation in single top production at very high invariant masses, in addition to the observation of the corresponding top--anti-top resonance. We conclude that the LHC will be able to observe tree-level flavor violation in single top production, probing KK masses at least as large as 2 TeV, as well as a very interesting region of the parameters.
Aquino Priscila M.
Burdman Gustavo
Eboli Oscar J. P.
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