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Dawning of the N=32 Shell Closure Seen through Precision Mass Measurements of Neutron-Rich Titanium Isotopes.

Publication ,  Journal Article
Leistenschneider, E; Reiter, MP; Ayet San Andrés, S; Kootte, B; Holt, JD; Navrátil, P; Babcock, C; Barbieri, C; Barquest, BR; Bergmann, J ...
Published in: Physical review letters
February 2018

A precision mass investigation of the neutron-rich titanium isotopes ^{51-55}Ti was performed at TRIUMF's Ion Trap for Atomic and Nuclear science (TITAN). The range of the measurements covers the N=32 shell closure, and the overall uncertainties of the ^{52-55}Ti mass values were significantly reduced. Our results conclusively establish the existence of the weak shell effect at N=32, narrowing down the abrupt onset of this shell closure. Our data were compared with state-of-the-art ab initio shell model calculations which, despite very successfully describing where the N=32 shell gap is strong, overpredict its strength and extent in titanium and heavier isotones. These measurements also represent the first scientific results of TITAN using the newly commissioned multiple-reflection time-of-flight mass spectrometer, substantiated by independent measurements from TITAN's Penning trap mass spectrometer.

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Published In

Physical review letters

DOI

EISSN

1079-7114

ISSN

0031-9007

Publication Date

February 2018

Volume

120

Issue

6

Start / End Page

062503

Related Subject Headings

  • General Physics
  • 51 Physical sciences
  • 49 Mathematical sciences
  • 40 Engineering
  • 09 Engineering
  • 02 Physical Sciences
  • 01 Mathematical Sciences
 

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Leistenschneider, E., Reiter, M. P., Ayet San Andrés, S., Kootte, B., Holt, J. D., Navrátil, P., … Dilling, J. (2018). Dawning of the N=32 Shell Closure Seen through Precision Mass Measurements of Neutron-Rich Titanium Isotopes. Physical Review Letters, 120(6), 062503. https://doi.org/10.1103/physrevlett.120.062503
Leistenschneider, E., M. P. Reiter, S. Ayet San Andrés, B. Kootte, J. D. Holt, P. Navrátil, C. Babcock, et al. “Dawning of the N=32 Shell Closure Seen through Precision Mass Measurements of Neutron-Rich Titanium Isotopes.Physical Review Letters 120, no. 6 (February 2018): 062503. https://doi.org/10.1103/physrevlett.120.062503.
Leistenschneider E, Reiter MP, Ayet San Andrés S, Kootte B, Holt JD, Navrátil P, et al. Dawning of the N=32 Shell Closure Seen through Precision Mass Measurements of Neutron-Rich Titanium Isotopes. Physical review letters. 2018 Feb;120(6):062503.
Leistenschneider, E., et al. “Dawning of the N=32 Shell Closure Seen through Precision Mass Measurements of Neutron-Rich Titanium Isotopes.Physical Review Letters, vol. 120, no. 6, Feb. 2018, p. 062503. Epmc, doi:10.1103/physrevlett.120.062503.
Leistenschneider E, Reiter MP, Ayet San Andrés S, Kootte B, Holt JD, Navrátil P, Babcock C, Barbieri C, Barquest BR, Bergmann J, Bollig J, Brunner T, Dunling E, Finlay A, Geissel H, Graham L, Greiner F, Hergert H, Hornung C, Jesch C, Klawitter R, Lan Y, Lascar D, Leach KG, Lippert W, McKay JE, Paul SF, Schwenk A, Short D, Simonis J, Somà V, Steinbrügge R, Stroberg SR, Thompson R, Wieser ME, Will C, Yavor M, Andreoiu C, Dickel T, Dillmann I, Gwinner G, Plaß WR, Scheidenberger C, Kwiatkowski AA, Dilling J. Dawning of the N=32 Shell Closure Seen through Precision Mass Measurements of Neutron-Rich Titanium Isotopes. Physical review letters. 2018 Feb;120(6):062503.

Published In

Physical review letters

DOI

EISSN

1079-7114

ISSN

0031-9007

Publication Date

February 2018

Volume

120

Issue

6

Start / End Page

062503

Related Subject Headings

  • General Physics
  • 51 Physical sciences
  • 49 Mathematical sciences
  • 40 Engineering
  • 09 Engineering
  • 02 Physical Sciences
  • 01 Mathematical Sciences