Experimental Constraints on Scharm-Stop Flavor Mixing and Implications in Top-quark FCNC Processes

Abstract

We examine experimental constraints on scharm-stop flavor mixing in the minimal supersymmetric standard model, which arise from the experimental bounds on squark and Higgs boson masses, the precision measurements of W-boson mass and the effective weak mixing angle, as well as the experimental data on B_s-\bar B_s mixing and b -> s gamma. We find that the combined analysis can put rather stringent constraints on \tilde{c}_L-\tilde{t}_L and \tilde{c}_L-\tilde{t}_R mixings. As an illustration for the effects of such constraints, we examine various top-quark flavor-changing neutral-current processes induced by scharm-stop mixings at the LHC and find that their maximal rates are significantly lowered.

B_s mass difference constraint added (version in PRD, rapid communication)

References in corpus (1)

• Single top-quark production by direct supersymmetric flavor-changing neutral-current interactions at the LHC

Cited by in corpus (25)

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• Top-quark FCNC Productions at LHC in Topcolor-assisted Technicolor Model
• Rare Decay of the Top t->c l lbar and Single Top Production at International Linear Collider
• Flavour violating squark and gluino decays
• Charged-Higgs Collider Signals with or without Flavor
• Updated Constraints on General Squark Flavor Mixing
• Enhancing $thj$ Production from Top-Higgs FCNC Couplings
• R-parity violating effects in top quark FCNC productions at LHC
• Constraints on flavor-changing neutral-current $Htq$ couplings from the signal of $tH$ associated production with QCD next-to-leading order accuracy at the LHC
• Single top-quark production by strong and electroweak supersymmetric flavor-changing interactions at the LHC
• Impact of squark generation mixing on the search for squarks decaying into fermions at LHC
• In search of an unbiased temperature estimator for statistically poor X-ray spectra
• 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
• Probing R-parity Violating Interactions from Top Quark Polarization at LHC
• Top quark three-body decays in the R-parity violating MSSM
• Top quark rare three-body decays in the littlest Higgs model with T-parity
• Top quark decay t -> cb\bar{b} in topcolor-assisted technicolor models
• Single top or bottom production associated with a scalar in γp collision as a probe of topcolor-assisted technicolor
• Virtual Effects of Split SUSY in Higgs Productions at Linear Colliders
• CKM-suppressed top quark decays t -> q + W in the SM and beyond
• The flavor-changing top-charm associated productions at ILC in littlest Higgs model with T parity
• Effects of R-parity violating supersymmetry in top pair production at linear colliders with polarized beams