Weak dipole moments of heavy fermions with flavor violation induced by $Z^{\prime }$ gauge bosons

Abstract

A calculation of weak dipole moments of charged fermions of the Standard Model (SM) at the one-loop level, in the context of a general effective extended neutral current model with flavor changing $Z^{\prime }{f}_i{\bar{f}}_j$ vertices, is presented. We give numerical predictions for the anomalous weak magnetic dipole moment (AWMDM) $a_{fi}^w$, and the weak electric dipole moment (WEDM) $d_{f_i}^w$, for the $\tau$ lepton and $t$ quark. For several $Z^{\prime }$ gauge bosons considered, we find that, for the $\tau$ lepton, the best prediction for the real part of $a_{\tau }^w$ is of the order of $10^{-9}$, while the imaginary part is four orders of magnitude below. The highest value for the WEDM, $d_{\tau }^w$, corresponds to $10^{-26}$ $e$-cm, for its real part, and the imaginary part is three orders of magnitude below. On the other hand, we found for the top quark, that the best prediction for the real part of $a_t^w$ is of the order of $10^{-7}$ and its imaginary part is of the order of $10^{-11}$. We also found that $d_t^w$ is of the order of $10^{-26}$ $e$-cm for its real part, and its imaginary part can be as high as $10^{-31}$ $e$-cm.

arXiv comment25 pages, 7 figures

References in corpus (49)

• Evidence for oscillation of atmospheric neutrinos
• The Muon g-2
• The Littlest Higgs
• Strong Dynamics and Electroweak Symmetry Breaking
• Search for neutrino oscillations on a long base-line at the CHOOZ nuclear power station
• Measurement of the Total Active 8B Solar Neutrino Flux at the Sudbury Neutrino Observatory with Enhanced Neutral Current Sensitivity
• $SU(3)\otimes U(1)$ Model for Electroweak Interactions
• Package-X: A Mathematica package for the analytic calculation of one-loop integrals
• Phenomenology of the Little Higgs Model
• The Phenomenology of Extra Neutral Gauge Bosons
• Evidence for muon neutrino oscillation in an accelerator-based experiment
• A precision measurement of the electron's electric dipole moment using trapped molecular ions
• Search for high-mass dilepton resonances using 139 fb${}^{-1}$ of $pp$ collision data collected at $\sqrt{s}=$13 TeV with the ATLAS detector
• Naturally Light Hidden Photons in LARGE Volume String Compactifications
• Search for new high-mass phenomena in the dilepton final state using 36 fb${}^{-1}$ of proton-proton collision data at $\sqrt{s}$ = 13 TeV with the ATLAS detector
• Revised and Improved Value of the QED Tenth-Order Electron Anomalous Magnetic Moment
• Electroweak Breaking and the mu problem in Supergravity Models with an Additional U(1)
• Improved Constraints on Z' Bosons from Electroweak Precision Data
• Implications of Abelian Extended Gauge Structures From String Models
• A new evaluation of the t->cH decay width in the standard model
• Effects of SM Kaluza-Klein excitations on electroweak observables
• Towards the Identification of New Physics through Quark Flavour Violating Processes
• Search for high-mass resonances in dilepton final states in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• All electromagnetic form factors
• Z' Discovery Limits For Supersymmetric E_6 Models
• Search for high-mass new phenomena in the dilepton final state using proton-proton collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
• Top Dipole Form Factors and Loop-induced CP-violation in Supersymmetry
• Single Top-Quark Production in Flavor-Changing Z' Models
• Precision predictions for Z'-production at the CERN LHC: QCD matrix elements, parton showers, and joint resummation
• The tau weak-magnetic dipole moment
• One-loop MSSM Contribution to the Weak Magnetic Dipole Moments of Heavy Fermions
• Weak Electric Dipole Moments of Heavy Fermions in the MSSM
• Search for anomalous weak dipole moments of the tau lepton
• Dipole Form Factors and Loop-induced CP-violation in Supersymmetry
• Weak magnetic dipole moments in two-Higgs-doublet models
• The Physics of New U(1)' Gauge Bosons
• Single Top Production via Gluon Fusion at CERN LHC
• Rare Decay of the Top t -> cgg in the Standard Model
• Rare top quark decay t --> u_1 \bar{u}_2 u_2 in the standard model
• The Weak-Magnetic Moment of Heavy Quarks
• Anomalous magnetic and weak magnetic dipole moments of the $\tau$ lepton in the simplest little Higgs model
• Weak properties of the tau lepton via a spin-0 unparticle
• Flavor violation in chromo- and electromagnetic dipole moments induced by $Z^{\prime }$ gauge bosons and a brief revisit of the Standard Model
• Static weak dipole moments of the $\tau$ lepton via renormalizable scalar leptoquark interactions
• Study of the lepton flavor-violating $Z^{\prime }\to \tau \mu$ decay
• Weak Magnetic Dipole Moments in the MSSM
• Dipole moments of charged leptons in the THDM-III with Textures
• Weak dipole moments of the tau lepton in models with an extended scalar sector
• Rare decays of the top quark mediated by Z' gauge bosons and flavor violation

Cited by in corpus (2)

• Decay of the Z' gauge boson with lepton flavor violation
• Investigating Boson Sector in an Extended Standard Model with $U(1{)}_D$ Symmetry