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Observation of a crossover of S2n in the island of inversion from precision mass spectrometry

Publication ,  Journal Article
Kwiatkowski, AA; Andreoiu, C; Bale, JC; Chaudhuri, A; Chowdhury, U; Malbrunot-Ettenauer, S; Gallant, AT; Grossheim, A; Gwinner, G; Lennarz, A ...
Published in: Physical Review C - Nuclear Physics
December 7, 2015

Mass measurements have been performed of the neutron-rich Al isotopes near N≈20, along the island of inversion. In general, the precision of the mass values was improved by an order of magnitude. Based on these new and more accurate data, we find the two-neutron separation energy of Al1334 to be 24.8(10.8) keV less than that of Mg1233. This represents the first known crossover on the S2n surface of the chart of nuclides. Large-scale shell-model calculations show that the crossover can be attributed to exceptionally large energy gains of the Mg isotopes in the island of inversion.

Duke Scholars

Published In

Physical Review C - Nuclear Physics

DOI

EISSN

1089-490X

ISSN

0556-2813

Publication Date

December 7, 2015

Volume

92

Issue

6

Related Subject Headings

  • Nuclear & Particles Physics
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
 

Citation

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Kwiatkowski, A. A., Andreoiu, C., Bale, J. C., Chaudhuri, A., Chowdhury, U., Malbrunot-Ettenauer, S., … Dilling, J. (2015). Observation of a crossover of S2n in the island of inversion from precision mass spectrometry. Physical Review C - Nuclear Physics, 92(6). https://doi.org/10.1103/PhysRevC.92.061301
Kwiatkowski, A. A., C. Andreoiu, J. C. Bale, A. Chaudhuri, U. Chowdhury, S. Malbrunot-Ettenauer, A. T. Gallant, et al. “Observation of a crossover of S2n in the island of inversion from precision mass spectrometry.” Physical Review C - Nuclear Physics 92, no. 6 (December 7, 2015). https://doi.org/10.1103/PhysRevC.92.061301.
Kwiatkowski AA, Andreoiu C, Bale JC, Chaudhuri A, Chowdhury U, Malbrunot-Ettenauer S, et al. Observation of a crossover of S2n in the island of inversion from precision mass spectrometry. Physical Review C - Nuclear Physics. 2015 Dec 7;92(6).
Kwiatkowski, A. A., et al. “Observation of a crossover of S2n in the island of inversion from precision mass spectrometry.” Physical Review C - Nuclear Physics, vol. 92, no. 6, Dec. 2015. Scopus, doi:10.1103/PhysRevC.92.061301.
Kwiatkowski AA, Andreoiu C, Bale JC, Chaudhuri A, Chowdhury U, Malbrunot-Ettenauer S, Gallant AT, Grossheim A, Gwinner G, Lennarz A, Macdonald TD, Rauch TJM, Schultz BE, Seeraji S, Simon MC, Simon VV, Lunney D, Poves A, Dilling J. Observation of a crossover of S2n in the island of inversion from precision mass spectrometry. Physical Review C - Nuclear Physics. 2015 Dec 7;92(6).

Published In

Physical Review C - Nuclear Physics

DOI

EISSN

1089-490X

ISSN

0556-2813

Publication Date

December 7, 2015

Volume

92

Issue

6

Related Subject Headings

  • Nuclear & Particles Physics
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics