Supersymmetry-induced flavor-changing neutral-current top-quark processes at the CERN Large Hadron Collider

2007/02/28 by J. J. Cao, Junjie Cao, G. Eilam +10 · 5 citations
Physics and Astronomy · #Collider #Flavor #Hadron #High-Energy Particle Collisions Research #Large Hadron Collider #Minimal Supersymmetric Standard Model #Nuclear physics #Observable #Parameter space #Particle physics #Particle physics theoretical and experimental studies #Parton #Physics #Physics beyond the Standard Model #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #Quark #Supersymmetry #Top quark #hep-ph

paper · pdf · doi:10.1103/physrevd.75.075021

published as Phys.Rev.D75:075021,2007 · Version in PRD (refs updated)

openalex publication_date 2007/04/27 · arxiv created 2007/10/11 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

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\ensuremath→t at parton level and t\ensuremath→ch, may be observable at the Large Hadron Collider.

Citations

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• Constraints on top quark flavor changing neutral currents using diphoton events at the LHC
• Single top or bottom production associated with a scalar inγpcollision as a probe of topcolor-assisted technicolor
• Search for top quark decays t → qH, with H → γγ, in s = 13 √(s)=13 TeV pp collisions using the ATLAS detector
• Flavor violating top decays and flavor violating quark decays of the Higgs boson