P, T -odd interactions in atomic $^{129}$Xe and phenomenological applications

Timo Fleig (1) , Martin Jung

1 LCPQ - Laboratoire de Chimie et Physique Quantiques

We calculate interaction constants for the contributions from P,T-odd scalar-pseudoscalar and tensor-pseudotensor operators to the electric dipole moment of Xe129 using relativistic many-body theory including the effects of dynamical electron correlations. These interaction constants are necessary ingredients to relating the corresponding measurements to fundamental parameters in models of physics beyond the standard model. We obtain αCS=0.71±0.18(10−23ecm) and αCT=0.520±0.049(10−20ΣXeecm), respectively. We apply our results to test a phenomenological relation between the two quantities, commonly used in the literature, and discuss their present and future phenomenological impact.

Mots clés: Atomic and molecular structure and dynamics; high-precision experiments; parity; time reversal; effective Hamiltonian; operator: scalar; operator: pseudoscalar; operator: tensor; many-body problem: relativistic; electron: correlation; electric moment; electron nucleon: interaction; xenon; numerical calculations; new physics

Domaines: Physique des Hautes Energies - Phénoménologie [hep-ph]; Physique Générale [physics.gen-ph]

Timo Fleig, Martin Jung. P, T -odd interactions in atomic $^{129}$Xe and phenomenological applications. Phys.Rev.A, 2021, 103 (1), pp.012807. ⟨10.1103/PhysRevA.103.012807⟩. ⟨hal-02959547⟩