|ITEM METADATA RECORD
|Title: ||Electromagnetic moments of odd-A 193–203,211Po isotopes|
|Authors: ||Seliverstov, M. D. ×|
Cocolios, Thomas Elias
Andreyev, A. N.
Barzakh, A. E.
Darby, I. G.
Fedorov, D. V.
Fedosseev, V. N.
Flanagan, K. T.
Marsh, B. A.
Molkanov, P. L.
Page, R. D.
Sjodin, A. M.
Van Duppen, Piet
Zemlyanoy, S. G. #
|Issue Date: ||31-Mar-2014 |
|Publisher: ||Published for the American Physical Society by the American Institute of Physics|
|Series Title: ||Physical Review C, Nuclear Physics vol:68 pages:1-6|
|Article number: ||034323|
|Abstract: ||This work presents a method for the ab initio calculation of isotope shift in atoms and ions with one valence
electron above closed shells. As a zero approximation, we use relativistic Hartree-Fock and then calculate
correlation corrections. The main motivation for developing the method comes from the need to analyze
whether different isotope abundances in early universe can contribute to the observed anomalies in quasar
absorption spectra. The current best explanation for these anomalies is the assumption that the fine-structure
constant a was smaller at early epoch. We test the isotope-shift method by comparing the calculated and
experimental isotope shift for the alkali-metal and alkali-metal-like atoms Na, Mg II, K, Ca II and Ba II. The
agreement is found to be good. We then calculate the isotope shift for some astronomically relevant transitions
in Si II and Si IV, Mg II, Zn II, and Ge II.
|Publication status: ||published|
|KU Leuven publication type: ||IT|
|Appears in Collections:||Nuclear and Radiation Physics Section|
× corresponding author|
# (joint) last author|
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