Rare Top Decays in Minimal and Non-minimal Universal Extra Dimension

Abstract

The flavour changing decays of the top quark are severely suppressed in the Standard Model by virtue of the Glashow-Iliopoulos-Maiani mechanism. Many beyond Standard Model extensions predict the decay rates at a level that is observable in the LHC. We perform a complete one-loop calculation of the flavour changing top quark decays $t\to c\gamma$ and $t\to ch$ in the universal extra dimensional model. Apart from considering the decay rates in the minimal version of the model, we also calculate the rates in the non-minimal scenario where the presence of boundary localised terms interestingly modify the set-up. We find that the decay rates in the minimal variant of the model do not change much from their Standard Model values. In the non-minimal version of this model, these decay rates can be higher for specific choices of the boundary localised parameters for a certain range of inverse compactification radius. But these model parameters lead to Kaluza-Klein particle masses that are in tension with various searches at the LHC.

arXiv comment31 pages, 11 figures; added more discussion, one section, a few clarifications and minor changes in the text and abstract; fixed typos; updated references; matches published version

References in corpus (58)

• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
• A Large Mass Hierarchy from a Small Extra Dimension
• An Alternative to Compactification
• The Hierarchy Problem and New Dimensions at a Millimeter
• New Dimensions at a Millimeter to a Fermi and Superstrings at a TeV
• Automatized One-Loop Calculations in 4 and D dimensions
• Bounds on Universal Extra Dimensions
• Is the Lightest Kaluza-Klein Particle a Viable Dark Matter Candidate?
• The global electroweak fit at NNLO and prospects for the LHC and ILC
• Package-X: A Mathematica package for the analytic calculation of one-loop integrals
• Radiative Corrections to Kaluza-Klein Masses
• Elastic Scattering and Direct Detection of Kaluza-Klein Dark Matter
• The Impact of Universal Extra Dimensions on the Unitarity Triangle and Rare K and B Decays
• A new evaluation of the t->cH decay width in the standard model
• Precise Calculation of the Relic Density of Kaluza-Klein Dark Matter in Universal Extra Dimensions
• FCNC top quark decay in the MSSM: a door to SUSY physics in high luminosity colliders?
• The Abundance of Kaluza-Klein Dark Matter with Coannihilation
• SUSY-induced FCNC top-quark processes at the Large Hadron Collider
• Top-quark rare decay $t\to ch$ in R-parity-violating SUSY
• Bulk fields with general brane kinetic terms
• Rare top decays t -> c gamma, t -> c g and CKM unitarity
• When the Higgs meets the Top: Search for t --> ch^0 at the LHC
• Non-minimal universal extra dimensions
• Snowmass 2013 Top quark working group report
• Search for top quark decays $t\to qH$ with $H\to \gamma \gamma$ using the ATLAS detector
• Precision measurement of the top-quark mass in lepton+jets final states
• SUSY induced top quark FCNC decay $t\to ch$ after Run I of LHC
• Phenomenology of Universal Extra Dimensions with Bulk-Masses and Brane-Localized Terms
• t->cg, cγ, cZ in the Left-Right Supersymmetric Model
• Vacuum Stability Constraints and LHC Searches for a Model with a Universal Extra Dimension
• Rare Top-quark Decays to Higgs boson in MSSM
• Single top quark production as a probe of anomalous $tq\gamma$ and $tqZ$ couplings at the FCC-ee
• Effective Lagrangian approach to Higgs-mediated FCNC top quark decays
• Top and Higgs Flavor Changing Neutral Couplings in two Higgs Doublets Model
• R-parity violating effects in top quark FCNC productions at LHC
• Non-minimal Universal Extra Dimensions: The strongly interacting sector at the Large Hadron Collider
• Constraining minimal and non-minimal UED models with Higgs couplings
• Boundary Localized Terms in Universal Extra-Dimensional Models through a Dark Matter perspective
• t -> c H^0 decay in the general two Higgs doublet model
• Effective description of brane terms in extra dimensions
• RG running in a minimal UED model in light of recent LHC Higgs mass bounds
• Direct and Indirect Searches for Top-Higgs FCNC Couplings
• Non-minimal Universal Extra Dimensions with Brane Local Terms: The Top Quark Sector
• Constraints on models with universal extra dimensions from dilepton searches at the LHC
• A Detailed Analysis of Flavour-changing Decays of Top Quarks as a Probe of New Physics at the LHC
• Constraints on top quark flavor changing neutral currents using diphoton events at the LHC
• A Review on Non-Minimal Universal Extra Dimensions
• Rare top decay $t\to c\gamma$ with flavor changing neutral scalar interactions in two Higgs doublet model
• Non-minimal UED confronts $B_s\to {\mu }^{+}{\mu }^{-}$
• Status Report on Universal Extra Dimensions After LHC8
• FCNC Top Quark Decays in Extra Dimensions
• Bulk fields with brane terms
• Probing the Top Quark Flavour-Changing Neutral Current at a Future Electron-Positron Collider
• Model Independent Predictions for Rare Top Decays with Weak Coupling
• Enhancement of new physics signal sensitivity with mistagged charm quarks
• $Z\to b\bar{b}$ in non-minimal Universal Extra Dimensional Model
• t-c gamma and t-cg in warped extra dimensions

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• Probing top quark FCNC couplings in the triple-top signal at the high energy LHC and future circular collider
• Constraining top quark flavor violation and dipole moments through three and four top quark productions at the LHC
• $t\to cg$ and $t\to cZ$ in Universal Extra Dimensional Models
• $\mathcal{R}(D^{(\ast )})$ anomalies in light of Non-Minimal Universal Extra Dimension
• SM Higgs boson and $t\to cZ$ decays in the 2HDM type III with CP violation
• Status of Flavour Maximal Non-minimal Universal Extra Dimension
• Effects of non-minimal Universal Extra Dimension on $B\to X_s\gamma$
• Looking for $B\to X_s{\ell }^{+}{\ell }^{-}$ in non-minimal Universal Extra Dimensional model
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• Living Orthogonally: Quasi-universal Extra Dimensions
• Flavour-changing neutral scalar interactions of the top quark
• Scotogenic top-quark FCNC decays
• Suppressed flavor violation in Lepton Flavored Dark Matter from an extra dimension
• Unitarity Constraints on non-minimal Universal Extra Dimensional Model
• Minimal and non-minimal Universal Extra Dimension models in the light of LHC data at 13 TeV
• Universal Extra Dimension models with gravity mediated decays after LHC Run II data
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• Rare top-quark decays $t\to cg(g)$ in the aligned two-Higgs-doublet model
• Top Rare Decays t-> cV in the Mirror Twin Higgs Models
• Effects of universal extra dimensions on top-quark electromagnetic interactions
• $B$ anomalies in the nonminimal universal extra dimension model
• Fat brane and seesaw mechanism in extra dimensions
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• Belle II Constraints on the Non-Minimal Universal Extra Dimensional Model