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

Journal Article · Sat Nov 01 00:00:00 EDT 2008 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.78.096005· OSTI ID:21254650

Jun, Gao; Chongsheng, Li; Xiangdong, Gao; Zhao, Li ^[1]

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1. Department of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871 (China)

We study the same-sign top pair production mediated by the first Kaluza-Klein (KK) excitation of the gluon in the Randall-Sundrum model with flavor violation at the LHC, in which the nonuniversal couplings between fermions and KK gauge bosons will lead to observable tree-level flavor changing neutral current 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.

• OSTI ID: 21254650
• Journal Information: Physical Review. D, Particles Fields, Vol. 78, Issue 9; Other Information: DOI: 10.1103/PhysRevD.78.096005; (c) 2008 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CERN LHC
COUPLING
EXCITATION
FLAVOR MODEL
GLUONS
KALUZA-KLEIN THEORY
MASS
NEUTRAL CURRENTS
PAIR PRODUCTION
POTENTIALS
T QUARKS
TEV RANGE 01-10
TRANSVERSE MOMENTUM