Mass determination near N=20 for Al and Na isotopes

Gallant, A. T., Alanssari, M., Bale, J. C., Andreoiu, C., Barquest, B. R., Chowdhury, U., Even, J., Finlay, A., Frekers, D., Gwinner, G., Klawitter, R., Kootte, B., Kwiatkowski, A. A., Lascar, D., Leach, K. G., Leistenschneider, E., Lennarz, A., Mayer, A. J., Short, D., Thompson, R., Wieser, M., Lunney, D. & Dilling, J. 31-Aug-2017 In : Physical Review C. 96, 2, 5 p., 024325

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  • Mass determination near N=20

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  • A. T. Gallant
  • M. Alanssari
  • J. C. Bale
  • C. Andreoiu
  • B. R. Barquest
  • U. Chowdhury
  • J. Even
  • A. Finlay
  • D. Frekers
  • G. Gwinner
  • R. Klawitter
  • B. Kootte
  • A. A. Kwiatkowski
  • D. Lascar
  • K. G. Leach
  • E. Leistenschneider
  • A. Lennarz
  • A. J. Mayer
  • D. Short
  • R. Thompson
  • M. Wieser
  • D. Lunney
  • J. Dilling
We report on the mass measurements of Na-31,Na-32 and Al-29,Al-34,Al-35, performed with the TITAN Penning trap mass spectrometer at TRIUMF. The mass excesses were found to be 12246(14) and 18638(37) keV for Na-31,Na-32 and -18207.77(37), -3000.5(29), and -223.7(73) keV for Al-29,Al-34,Al-35, respectively. Our measurements confirm the observation of a crossover in the two-neutron separation energies of Mg-33 and Al-34. We did not observe the recently reported, long-lived, isomeric state of Al-34, but, based on the previously measured half-lives, the mass value of the ground state was determined.
Original languageEnglish
Article number024325
Number of pages5
JournalPhysical Review C
Issue number2
StatePublished - 31-Aug-2017

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