Mass Measurements of Neutron-Deficient Yb Isotopes and Nuclear Structure at the Extreme Proton-Rich Side of the N = 82 Shell - Archive ouverte HAL Access content directly
Journal Articles Physical Review Letters Year : 2021

Mass Measurements of Neutron-Deficient Yb Isotopes and Nuclear Structure at the Extreme Proton-Rich Side of the N = 82 Shell

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Sönke Beck
Brian Kootte
  • Function : Author
Irene Dedes
  • Function : Author
Timo Dickel
  • Function : Author
Ania A Kwiatkowski
  • Function : Author
Eleni Marina Lykiardopoulou
  • Function : Author
Wolfgang R Plass
  • Function : Author
Moritz P Reiter
  • Function : Author
Corina Andreoiu
  • Function : Author
Julian Bergmann
  • Function : Author
Thomas Brunner
  • Function : Author
D. Curien
Jens Dilling
  • Function : Author
Eleanor Dunling
  • Function : Author
Jake Flowerdew
  • Function : Author
Abdelghafar Gaamouci
  • Function : Author
Leigh Graham
  • Function : Author
Gerald Gwinner
  • Function : Author
Andrew Jacobs
  • Function : Author
Renee Klawitter
  • Function : Author
Yang Lan
  • Function : Author
Erich Leistenschneider
  • Function : Author
Nikolay Minkov
  • Function : Author
Victor Monier
  • Function : Author
Ish Mukul
  • Function : Author
Stefan F Paul
  • Function : Author
Christoph Scheidenberger
  • Function : Author
Robert I Thompson
  • Function : Author
James L Tracy
  • Function : Author
Michael Vansteenkiste
  • Function : Author
Hua-Lei Wang
  • Function : Author
Michael E Wieser
  • Function : Author
Christian Will
  • Function : Author
Jie Yang

Abstract

High-accuracy mass measurements of neutron-deficient Yb isotopes have been performed at TRIUMF using TITAN’s multiple-reflection time-of-flight mass spectrometer (MR-TOF-MS). For the first time, an MR-TOF-MS was used on line simultaneously as an isobar separator and as a mass spectrometer, extending the measurements to two isotopes further away from stability than otherwise possible. The ground state masses of Yb150,153 and the excitation energy of Ybm151 were measured for the first time. As a result, the persistence of the N=82 shell with almost unmodified shell gap energies is established up to the proton drip line. Furthermore, the puzzling systematics of the h11/2-excited isomeric states of the N=81 isotones are unraveled using state-of-the-art mean field calculations
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Dates and versions

hal-03545633 , version 1 (27-01-2022)

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Sönke Beck, Brian Kootte, Irene Dedes, Timo Dickel, Ania A Kwiatkowski, et al.. Mass Measurements of Neutron-Deficient Yb Isotopes and Nuclear Structure at the Extreme Proton-Rich Side of the N = 82 Shell. Physical Review Letters, 2021, 127 (11), pp.112501. ⟨10.1103/PhysRevLett.127.112501⟩. ⟨hal-03545633⟩
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