Sgoldstino events in top decays at LHC

Abstract

We study top-quark decays in models with light sgoldstinos. The off-diagonal entries in the squark mass matrices can lead to FCNC top two-body decays into sgoldstinos and u(c) quarks. We compute the rates for these decays and discuss the corresponding signatures that could manifest the presence of sgoldstinos in top decays at LHC. We expect that a supersymmetry breaking scale $\sqrt{F}$ up to a scale of order 10 TeV could be probed through this process, for a maximal squark mixing with the third generation. Justified by our preliminary analysis, a thorough study of the corresponding signal versus background and systematics in the LHC environment would be most welcome, in order to accurately assess the potential of this promising process in determining $\sqrt{F}$.

arXiv commentStandard LaTeX, 11 pages, 4 figures, one reference added

References in corpus (12)

• Theories with Gauge-Mediated Supersymmetry Breaking
• A complete analysis of FCNC and CP constraints in general SUSY extensions of the standard model
• Delta M_K and epsilon_K in SUSY at the Next-to-Leading order
• Signals of a superlight gravitino at hadron colliders when the other superparticles are heavy
• Gauge mechanism of mediation of supersymmetry breaking
• Higgs Boson Discovery Potential of LHC in the Channel $pp\to \gamma \gamma +jet$
• Light Sgoldstino: Precision Measurements versus Collider Searches
• Kaon Physics with Light Sgoldstinos and Parity Conservation
• Signatures of massive sgoldstinos at e+e- colliders
• Signatures of massive sgoldstinos at hadron colliders
• On the muon anomalous magnetic moment in models with a superlight gravitino
• Flavour non-conservation in goldstino interactions

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• Low Scale Supersymmetry Breaking and its LHC Signatures
• Photophilic Higgs from sgoldstino mixing
• The MSSM Higgs Sector with a Dynamical Goldstino Supermultiplet
• Liberating Higgs couplings in supersymmetry
• Sgoldstino-Higgs mixing in models with low-scale supersymmetry breaking
• Quark flavor violation and axion-like particles from top-quark decays at the LHC
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• CompHEP Package with Light Gravitino and Sgoldstinos
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• Gravitational waves from first-order electroweak phase transition in a model with light sgoldstinos
• Collider signatures of low scale supersymmetry breaking: A Snowmass 2013 White Paper
• Sgoldstino signal at FASER: prospects in searches for supersymmetry
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