Constraining CPT-odd nonminimal interactions in the Electroweak sector

Abstract

In this work, we propose two possibilities of CPT-odd and Lorentz-violating (LV) nonminimal couplings in the Electroweak sector. These terms are gauge-invariant and couple a fixed 4-vector to the physical fields of the theory. After determining the LV contributions to the electroweak currents, we reassess the evaluation of the decay rate for the vector mediators $W$ and $Z$. Using the experimental uncertainty in these decay rates, upper bounds of $1$ part in $10^{-15}$ (eV )${}^{-1}$ and $10^{-14}$ (eV )${}^{-1}$ are imposed on the magnitude of the proposed nonmimal interactions.

6 pages, revtex style

References in corpus (22)

• Electrodynamics with Lorentz-violating operators of arbitrary dimension
• Sensitive polarimetric search for relativity violations in gamma-ray bursts
• Lorentz-violating spinor electrodynamics and Penning traps
• Consistency of isotropic modified Maxwell theory: Microcausality and unitarity
• Limits on isotropic Lorentz violation in QED from collider physics
• New Bounds on Isotropic Lorentz Violation
• Causality and stability for Lorentz-CPT violating electrodynamics with dimension-5 operators
• Lorentz violation bounds on Bhabha scattering
• Relativistic Landau-Aharonov-Casher quantization based on the Lorentz symmetry violation background
• The Photon Sector in the Quantum Myers-Pospelov Model: An improved description
• Optical-cavity tests of higher-order Lorentz violation
• Lab-based limits on the Carroll-Field-Jackiw Lorentz-violating electrodynamics
• General CPT-even dimension-five nonminimal couplings between fermions and photons yielding EDM and MDM
• Lorentz violation in simple QED processes
• New effects in the interaction between electromagnetic sources mediated by nonminimal Lorentz violating interactions
• Electric Dipole Moments as Probes of CPT Invariance
• Cherenkov Radiation with Massive, CPT-violating Photons
• Gupta--Bleuler's quantization of the anisotropic parity-even and CPT-even electrodynamics of standard model extension
• Limits on Lorentz violation from charged-pion decay
• Testing Lorentz invariance in orbital electron capture
• Concurrent tests of Lorentz invariance in $\beta$-decay experiments
• Gupta-Bleuler's quantization of a parity-odd CPT-even electrodynamics of the standard model extension

Cited by in corpus (15)

• An exact Schwarzschild-like solution in a bumblebee gravity model
• Gauge field theories with Lorentz-violating operators of arbitrary dimension
• Bumblebee gravity with a Kerr-Sen-like solution and its Shadow
• Vacuum Cherenkov radiation for Lorentz-violating fermions
• Maxwell electrodynamics modified by a CPT-odd dimension-five higher-derivative term
• Exact modifications on a vacuum spacetime due to a gradient bumblebee field at its vacuum expectation value
• One-loop structure of the photon propagator in the Standard Model Extension
• Testing Lorentz-symmetry violation via electroweak decays
• Constraining dimension-six nonminimal Lorentz-violating electron-nucleon interactions with EDM physics
• Gravitational time advancement effect in Bumblebee gravity for Earth bound systems
• A dimension five Lorentz-violating nonminimal coupling for mesons in the KLZ model
• Vacuum polarization in Yang-Mills theories with Lorentz violation
• CPT-Odd effects on the electromagnetic properties of charged leptons in the Standard Model Extension
• Constraining EDM and MDM lepton dimension five interactions in the electroweak sector
• Lorentz-symmetry violation in the electroweak sector: scattering processes in future $e^{+}{e}^{-}$ colliders