t->cg, cγ, cZ in the Left-Right Supersymmetric Model

Abstract

We analyse top quark flavor violating decays into a charm quark and a gluon, photon or Z boson in a supersymmetric model incorporating left-right symmetry. We include loop calculations involving contributions from scalar quarks, gluinos, charginos and neutralinos. We perform the calculations first assuming the minimal (flavor diagonal) scalar quark scenario, and then allowing for arbitrary mixing between the second and third generation of scalar quarks, in both the up and down sectors. In each case we present separately the contributions from gluino, chargino and neutralino loops and compare their respective strengths. In the flavor-diagonal case, the branching ratio cannot exceed 10^-5 (10^-6) for the gluon (photon/Z boson); while for the unconstrained (flavor non-diagonal) case the same branching ratios can reach almost 10^-4 for the gluon, 10^-6 for the photon and 10^-5 for the Z boson, all of which are slightly below the expected reach of LHC.

40 pages, 11 figures, uses axodraw.sty, references added, a paragraph about large tanbeta values added, published version

References in corpus (3)

• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)
• $t\to cV$ via SUSY FCNC couplings in the unconstrained MSSM
• Top flavour violating decays in general supersymmetric models

Cited by in corpus (28)

• SUSY-induced FCNC top-quark processes at the Large Hadron Collider
• New Physics effects in the flavor-changing neutral couplings of the Top quark
• Probe Anomalous $tq\gamma$ couplings through Single Top Photoproduction at the LHC
• Constraints on top quark FCNC from electroweak precision measurements
• Rare Decay of the Top t->c l lbar and Single Top Production at International Linear Collider
• Top and Higgs Flavor Changing Neutral Couplings in two Higgs Doublets Model
• R-parity violating effects in top quark FCNC productions at LHC
• Rare Top Decays in Minimal and Non-minimal Universal Extra Dimension
• Single Top Production via Gluon Fusion at CERN LHC
• Rare Decay of the Top t -> cgg in the Standard Model
• Searches for top-Higgs FCNC couplings via the Whj signal with $h\to \gamma \gamma$ at the LHC
• Searches for anomalous $tqZ$ couplings from the trilepton signal of $tZ$ associated production at the 14 TeV LHC
• $t\to cg$ and $t\to cZ$ in Universal Extra Dimensional Models
• Searches for the FCNC couplings from top-Higgs associated production signal with $h\to \gamma \gamma$ at the LHC
• FCNC Top Quark Decays in Extra Dimensions
• Top quark rare three-body decays in the littlest Higgs model with T-parity
• Model Independent Predictions for Rare Top Decays with Weak Coupling
• Neutralino Dark Matter in the Left-Right Supersymmetric Model
• 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
• Flavor-changing decays of the top quark in 5D warped models
• Flavour-changing top quark decays in the alternative left-right model
• Decay $t->c\gamma$ in models with SU_L(3)XU_X(1) gauge symmetry
• Masses of Fermions in Supersymmetric Models
• Unparticle effects on top quark rare decays
• CP-Odd Phase Effects in a Left-Right Symmetric Chargino Sector
• Unparticle effects in rare (t -> c g g) decay
• Rare decays of the top quark mediated by Z' gauge bosons and flavor violation
• Rare decay $t\to c\gamma \gamma$ via scalar leptoquark doublets