SUSY-induced FCNC top-quark processes at the Large Hadron Collider

Abstract

We systematically calculate various flavor-changing neutral-current top-quark processes induced by supersymmetry at the Large Hadron Collider, which include five decay modes and six production channels. To reveal the characteristics of these processes, we first compare the dependence of the rates for these channels on the relevant supersymmetric parameters, then we scan the whole parameter space to find their maximal rates, including all the direct and indirect current experimental constraints on the scharm-stop flavor mixings. We find that, under all these constraints, only a few channels, through cg->t at parton-level and t-> ch, may be observable at the Large Hadron Collider.

Version in PRD (refs updated)

Cited by in corpus (14)

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• Flavour violating squark and gluino decays
• Squark Flavor Violation at the LHC
• Charged-Higgs Collider Signals with or without Flavor
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• Top quark physics at the LHC
• Top quark FCNC decays and productions at LHC in littlest Higgs model with T-parity
• FCNC-induced heavy-quark events at the LHC from Supersymmetry
• Top-Quark FCNC Decay t->cgg in Topcolor-assisted Technicolor Model
• Top quark three-body decays in the R-parity violating MSSM
• The flavor-changing top-charm quark production in the littlest Higgs model with T parity at the ILC
• CP Asymmetry in Charged Higgs Decays to Chargino-Neutralino
• Top quark decay t -> cb\bar{b} in topcolor-assisted technicolor models
• CKM-suppressed top quark decays t -> q + W in the SM and beyond