https://doi.org/10.1140/epjd/e2015-60219-0
Regular Article
Collinear laser spectroscopy of atomic cadmium
Extraction of nuclear magnetic dipole and electric quadrupole moments
1 Institut für Kernchemie, Johannes Gutenberg-Universität Mainz, 55128 Mainz, Germany
2 ELI-NP, Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering, 077125 Magurele, Romania
3 Instituut voor Kern- en Stralingsfysica, KU Leuven, Celestijnenlaan 200D, 3001 Leuven, Belgium
4 Instytut Fizyki imienia Mariana Smoluchowskiego, Uniwersytet Jagielloński, ul. prof. Stanisława Łojasiewicza 11, 30-348 Kraków, Poland
5 Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany
6 Oliver Lodge Laboratory, University of Liverpool, Liverpool, L69 7ZE, UK
7 School of Physics and Astronomy, University of Manchester, Manchester, M13 9PL, UK
8 Helmholtz-Institut Jena, Fröbelstieg 3, 07743 Jena, Germany
9 Theoretisch-Physikalisches Institut, Friedrich-Schiller-Universität Jena, Max-Wien-Platz 1, 07743 Jena, Germany
10 Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
11 CERN European Organization for Nuclear Research, Physics Department, 1211 Geneva 23, Switzerland
12 Institut de Physique Nucléaire, Orsay, IN2P3/CNRS, 91406 Orsay Cedex, France
a
e-mail: wnoertershaeuser@ikp.tu-darmstadt.de
Received: 8 April 2015
Received in final form: 16 May 2015
Published online: 25 June 2015
Hyperfine structure A and B factors of the atomic 5s5p 3P2 → 5s6s 3S1 transition are determined from collinear laser spectroscopy data of 107−123Cd and 111m−123mCd. Nuclear magnetic moments and electric quadrupole moments are extracted using reference dipole moments and calculated electric field gradients, respectively. The hyperfine structure anomaly for isotopes with s1/2 and d5/2 nuclear ground states and isomeric h11/2 states is evaluated and a linear relationship is observed for all nuclear states except s1/2. This corresponds to the Moskowitz-Lombardi rule that was established in the mercury region of the nuclear chart but in the case of cadmium the slope is distinctively smaller than for mercury. In total four atomic and ionic levels were analyzed and all of them exhibit a similar behaviour. The electric field gradient for the atomic 5s5p 3P2 level is derived from multi-configuration Dirac-Hartree-Fock calculations in order to evaluate the spectroscopic nuclear quadrupole moments. The results are consistent with those obtained in an ionic transition and based on a similar calculation.
Key words: Atomic Physics
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag 2015