Same-sign top pair production in an extra-dimension model of flavor at the CERN Large Hadron Collider

Details Same-sign top pair production in an extra-dimension model of flavor at the CERN Large Hadron Collider Same-sign top pair production in an extra-dimension model of flavor at the CERN Large Hadron Collider

2008-08-25

arxiv.org/abs/0808.3302v3

Phys.Rev.D78:096005,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages, 4 figures; several references added; version appeared in Phys.Rev.D

Scientific paper

10.1103/PhysRevD.78.096005

We study the same-sign top pair production mediated by the first Kluza-Klein (KK) excitation of the gluon in the Randall-Sundrum (RS) model with flavor violation at the Large Hadron Collider (LHC), in which the nonuniversal couplings between fermions and KK gauge bosons will lead to observable tree level flavor-changing neutral current (FCNC) effects. We find that the same-sign top quarks produced in our case have property of high energy and high transverse momentum, and lead to an observable signal in the same-sign dilepton channel even when the mass of the KK gluon reach up to 3 TeV. We further investigate the potential of the LHC to probe the flavor violating parameters and find that the LHC can probe their values down to 0.06.

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