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Precise atomic masses of neutron-rich Br and Rb nuclei close to the r-process path |
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| Authors: | S Rahaman U Hager V -V Elomaa T Eronen J Hakala A Jokinen A Kankainen P Karvonen I D Moore H Penttilä S Rinta-Antila J Rissanen A Saastamoinen T Sonoda J Äystö |
| Institution: | 1. Department of Physics, University of Jyv?skyl?, P.O. Box 35 (YFL), FIN-40014, Finland |
| Abstract: | The Penning trap mass spectrometer JYFLTRAP, coupled to the Ion-Guide Isotope Separator On-Line (IGISOL) facility at Jyv?skyl?, was employed to measure the atomic masses of neutron-rich 85-92Br and 94-97Rb isotopes with a typical accuracy less than 10keV. Discrepancies with the older data are discussed. Comparison to different mass models is presented. Details of nuclear structure, shell and subshell closures are investigated by studying the two-neutron separation energy and the shell gap energy. |
| Keywords: | 21 10 Dr Binding energies and masses 27 50 +e 59≤ A≤ 89 27 60 +j 90≤ A≤ 149 07 75 +h Mass spectrometers |
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