New Supersymmetric Contributions to $t->cV$

Abstract

We calculate the electroweak-like one-loop supersymmetric contributions to the rare and flavor-violating decay of the top quark into a charm quark and a gauge boson: $t->cV$, with $V=\gamma ,Z,g$. We consider loops of both charginos and down-like squarks (where we identify and correct an error in the literature) and neutralinos and up-like squarks (which have not been calculated before). We also account for left-right and generational squark mixing. Our numerical results indicate that supersymmetric contributions to $t->cV$ can be upto 5 orders of magnitude larger than their Standard Model counterparts. However, they still fall short of the sensitivity expected at the next-generation top-quark factories.

13 pages, LaTex, 1 figure included. Final version to appear in Physical Review D. Chargino contribution dealt with in greater detail. Minor revisions in text

Cited by in corpus (110)

• FCNC top quark decay in the MSSM: a door to SUSY physics in high luminosity colliders?
• SUSY-induced FCNC top-quark processes at the Large Hadron Collider
• The Hunt for New Physics at the Large Hadron Collider
• Flavor-changing Top Quark Decays In R-Parity Violating SUSY
• Top-quark rare decay $t\to ch$ in R-parity-violating SUSY
• Loop Induced Flavor Changing Neutral Decays of the Top Quark in a General Two-Higgs-Doublet Model
• Rare top decays t -> c gamma, t -> c g and CKM unitarity
• Top-Charm Associated Production in High Energy $e^{+}{e}^{-}$ Collisions
• Top quark forward-backward asymmetry at the Tevatron: a comparative study in different new physics models
• Single Top Quark Production via FCNC Couplings at Hadron Colliders
• Search for Single Top Production at LEP
• Direct Top Quark Production at Hadron Colliders as a Probe of New Physics
• $t\to cV$ via SUSY FCNC couplings in the unconstrained MSSM
• Collider aspects of flavour physics at high Q
• SUSY-Induced Top Quark FCNC Processes at Linear Colliders
• New Physics effects in the flavor-changing neutral couplings of the Top quark
• Search for top quark decays $t\to qH$ with $H\to \gamma \gamma$ using the ATLAS detector
• Top quark forward-backward asymmetry, FCNC decays and like-sign pair production as a joint probe of new physics
• Probing Topcolor-Assisted Technicolor from Top-Charm Associated Production at LHC
• Experimental Constraints on Scharm-Stop Flavor Mixing and Implications in Top-quark FCNC Processes
• A search for flavour changing neutral currents in top-quark decays in pp collision data collected with the ATLAS detector at sqrt(s) = 7 TeV
• Search for single top-quark production via flavour changing neutral currents at 8 TeV with the ATLAS detector
• Probe Anomalous $tq\gamma$ couplings through Single Top Photoproduction at the LHC
• Flavor changing single top quark production channels at e^+e^- colliders in the effective Lagrangian description
• Top flavour violating decays in general supersymmetric models
• Correlation between $R_{D^{(\ast )}}$ and top quark FCNC decays in leptoquark models
• Constraints on top quark FCNC from electroweak precision measurements
• t->cg, cγ, cZ in the Left-Right Supersymmetric Model
• 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
• Probing new physics from top quark FCNC processes at linear colliders : a mini review
• Effective Lagrangian approach to Higgs-mediated FCNC top quark decays
• Models for Light-Cone Meson Distribution Amplitudes
• Dimension six FCNC operators and top production at the LHC
• Probing Topcolor-Assisted Technicolor from Like-sign Top Pair Production at LHC
• Search for top quark decays $t\to qH$, with $H\to \gamma \gamma$, in $\sqrt{s}=13$ TeV $pp$ collisions using the ATLAS detector
• Top and Higgs Flavor Changing Neutral Couplings in two Higgs Doublets Model
• Supersymmetric QCD flavor changing top quark decay
• R-parity violating effects in top quark FCNC productions at LHC
• FCNC top quark production via anomalous tqV couplings beyond leading order
• Combined effects of strong and electroweak FCNC effective operators in top quark physics at the LHC
• Single top production at the LHC as a probe of R parity violation
• The FCNC top-squark decay as a probe of squark mixing
• Single Top Production via Gluon Fusion at CERN LHC
• Flavor changing t -> c l_1^- l_2^+ decay in the general two Higgs doublet model
• Single top quark production via SUSY-QCD FCNC couplings at the CERN LHC in the unconstrained MSSM
• Single top-quark production by direct supersymmetric flavor-changing neutral-current interactions at the LHC
• Next-to-leading order QCD corrections to $tZ$ associated production via the flavor-changing neutral-current couplings at hadron colliders
• Top Quark FCNC Decay to 125GeV Higgs boson in the Littlest Higgs Model with T-parity
• Supersymmetric effects in top quark decay into polarized W-boson
• Heavy quark-philic scalar dark matter with a vector-like fermion portal
• Impact of squark generation mixing on the search for gluinos at LHC
• t -> c H^0 decay in the general two Higgs doublet model
• Dimension-six anomalous $tq\gamma$ couplings in $\gamma \gamma$ collision at the LHC
• Rare top quark decay t --> u_1 \bar{u}_2 u_2 in the standard model
• Next-to-leading order QCD corrections to the single top quark production via model-independent t-q-g flavor-changing neutral-current couplings at hadron colliders
• Direct and Indirect Searches for Top-Higgs FCNC Couplings
• Probing R-violating top quark decays at hadron colliders
• Impact of squark generation mixing on the search for squarks decaying into fermions at LHC
• Higgs mediated flavor violating top quark decays t --> u_i H, u_i gamma, u_i gamma gamma, and the process gamma gamma --> t c in effective theories
• In search of an unbiased temperature estimator for statistically poor X-ray spectra
• The rare top decay $t\to cg$ in topcolor assisted technicolor models
• Top quark FCNC decays and productions at LHC in littlest Higgs model with T-parity
• Review of Properties of the Top Quark from Measurements at the Tevatron
• Constraints on the anomalous tensor operators from B\toϕK^{\ast}, ηK^{\ast}$ and ηK decays
• The flavor-changing single-top quark production in the littlest Higgs model with T parity at the LHC
• Neutrino Bilarge Mixing and Flavor Physics in the Flipped SU(5) Model
• Probing R-parity Violating Interactions from Top Quark Polarization at LHC
• Top-Quark FCNC Decay t->cgg in Topcolor-assisted Technicolor Model
• Rare t-quark decays $t\to c{l}_j^{+}{l}_k^{-}$, $t\to c\widetilde{{\nu }_j}{\nu }_k$ in the minimal four color symmetry model
• Effects of an extra $Z^{\prime }$ gauge boson on the top quark decay $t-->c\gamma$
• Constraints on top quark flavor changing neutral currents using diphoton events at the LHC
• Probing top quark decay into light stop in the supersymmetric standard model at the upgraded Tevatron
• Next-to-leading order QCD corrections to the top quark associated with $\gamma$ production via model-independent flavor-changing neutral-current couplings at hadron colliders
• Exploring the Anomalous Top-Higgs FCNC Couplings at the electron proton colliders
• Top quark three-body decays in the R-parity violating MSSM
• The flavor changing top decay t-->c+sneutrino or sneutrino-->t+c(bar) in the MSSM without R-parity
• FCNC Top Quark Decays in Extra Dimensions
• The flavor-changing top-charm quark production in the littlest Higgs model with T parity at the ILC
• Direct CP violation in semi-inclusive flavor-changing neutral current decays in the MSSM without $R-$parity
• Search for flavor-changing neutral $tqH$ interactions with $H\to \gamma \gamma$ in $pp$ collisions at $\sqrt{s}$ = 13 TeV using the ATLAS detector
• Top quark rare three-body decays in the littlest Higgs model with T-parity
• Model Independent Predictions for Rare Top Decays with Weak Coupling
• Flavor changing neutral current decays $t\to cX$ ($X=\gamma ,g,Z,H$) and $t\to c\bar{\ell }\ell$ ($\ell =\mu ,\tau$) via scalar leptoquarks
• Top quark decay t -> cb\bar{b} in topcolor-assisted technicolor models
• Flavor-changing decays of the top quark in 5D warped models
• Probing the anomalous $tq\gamma$ couplings through single top production at the future lepton-hadron colliders
• Same-sign top pair plus $W$ production in flavor changing vector and scalar models
• Impact of FCNC top quark interactions on BR(t -> b W)
• Flavour-changing top quark decays in the alternative left-right model
• t-c gamma and t-cg in warped extra dimensions
• Single top or bottom production associated with a scalar in γp collision as a probe of topcolor-assisted technicolor
• Decay $t->c\gamma$ in models with SU_L(3)XU_X(1) gauge symmetry
• Flavor changing neutral decay effects in models with two Higgs boson doublets: Applications to LHC Physics
• Probing FCNC couplings in single top quark production associated with a neutral gauge boson at future lepton colliders
• Virtual Effects of Split SUSY in Higgs Productions at Linear Colliders
• Unparticle effects on top quark rare decays
• Implications of $D^0-\overline{D^0}$ on the rare top quark decays $t\to u\gamma$ and $t\to ug$
• Rare three-body decay t -> c h gamma in the standard model and the two-Higgs doublet model
• Single top production associated with a neutral scalar at LHC in topcolor-assisted technicolor
• Probing the anomalous tqgamma couplings in photon-proton collisions
• Branching ratio and CP violation in semi-inclusive flavor-changing top decays
• The flavor-changing top-charm associated productions at ILC in littlest Higgs model with T parity
• Signature of same-sign top pair production mediated by a nonuniversal $Z^{\prime }$ with QCD next-to-leading accuracy at the LHC
• Rare decay $t\to c\gamma \gamma$ via scalar leptoquark doublets
• Branching-ratio and CP violation in semi-inclusive flavor-changing top decays
• Investigation of the FCNC couplings between the top quark and the photon in $\gamma \gamma$ and ${\gamma }^{\ast }{\gamma }^{\ast }$ collisions at the CLIC
• Sensitivity analysis for the anomalous $tq\gamma$ couplings via $\gamma q\to t\gamma$ subprocess in photon-proton collisions at the FCC-$\mu$p
• The single t-quark productions via the flavor-changing processes in the topcolor-assisted technicolor model at the hadron colliders
• Effects of R-parity violating supersymmetry in top pair production at linear colliders with polarized beams