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Constraining dimension-6 nonminimal Lorentz-violating electron-nucleon interactions with EDM physics
Authors: J.B. Araujo; A.H. Blin; M. Sampaio; M.M. Ferreira Jr
Ref.: Phys.Rev. D100, 015046 D100, 015046 (2019)
Abstract: Electric dipole moments of atoms can arise from P-odd and T-odd electron-nucleon couplings. This work studies a general class of dimension-six electron-nucleon interactions mediated by Lorentz-violating tensors of ranks ranging from 1 to 4. The possible couplings are listed as well as their behavior under C, P, and T, allowing us to select the couplings compatible with electric-dipole-moment physics. The unsuppressed contributions of these couplings to the atoms hamiltonian can be read as equivalent to an electric dipole moment. The Lorentz-violating coefficients magnitudes are limited using electric-dipole-moment measurements at the levels of 3.2×10−31(eV)−2 or 1.6×10−33(eV)−2.
