Precise atomic masses of neutron-rich Br and Rb nuclei close to the r-process path

Details Precise atomic masses of neutron-rich Br and Rb nuclei close to the r-process path Precise atomic masses of neutron-rich Br and Rb nuclei close to the r-process path

2007-03-12

arxiv.org/abs/nucl-ex/0703017v1

Physics

Nuclear Physics

Nuclear Experiment

10 pages and 11 figures. Accepted for publication in Euro. Phys. J. A

Scientific paper

10.1140/epja/i2006-10297-y

The Penning trap mass spectrometer JYFLTRAP, coupled to the Ion-Guide Isotope Separator On-Line (IGISOL) facility at Jyvaskyla, was employed to measure the atomic masses of neutron rich 85 to 92Br and 94 to 97Rb isotopes with a typical accuracy less than 10 keV. 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.

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