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, Renee; 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.

doi:10.1103/PhysRevC.96.024325

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Mass determination near N=20 for Al and Na isotopes

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Klawitter, Renee
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

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Citation

Gallant, A. T., Alanssari, M., Bale, J. C., Andreoiu, C., Barquest, B. R., Chowdhury, U., et al. (2017). Mass determination near N=20 for Al and Na isotopes. Physical Review C, 96(2): 024325. doi:10.1103/PhysRevC.96.024325.

Cite as: https://hdl.handle.net/21.11116/0000-0001-2B35-4

Abstract

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.