Hyperspherical Harmonics Methods for few- and Many-Body Problems

Das, Tapan Kumar

doi:10.1007/978-3-642-61330-2_25

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2017

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“…The eEDM interaction in the molecule used by us is given by the following effective operator [16,17] .…”

Section: Introductionmentioning

confidence: 99%

Analysis of large effective electric fields of weakly polar molecules for electron electric-dipole-moment searches

et al. 2017

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The electric dipole moment of an electron (eEDM) is one of the sensitive probes of physics beyond the standard model. The possible existence of the eEDM gives rise to an experimentally observed energy shift, which is proportional to the effective electric field (E eff ) of a target molecule. Hence, an analysis of the quantities that enhance E eff is necessary to identify suitable molecules for eEDM searches. In the context of such searches, it is generally believed that a molecule with larger electric polarization also has a larger value of E eff . However, our Dirac-Fock and relativistic coupled-cluster singles and doubles calculations show that the hydrides of Yb and Hg have larger E eff than those of fluorides, even though their polarizations are smaller. This is due to significant mixing of valence s and p orbitals of the heavy atom in the molecules. This mixing has been attributed to the energy differences of the valence atomic orbitals and the overlap of the two atomic orbitals based on the orbital interaction theory.

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“…The eEDM interaction in the molecule used by us is given by the following effective operator [16,17] .…”

Section: Introductionmentioning

confidence: 99%