TY - JOUR
T1 - Mass determination near N=20 for Al and Na isotopes
AU - Gallant, A. T.
AU - Alanssari, M.
AU - Bale, J. C.
AU - Andreoiu, C.
AU - Barquest, B. R.
AU - Chowdhury, U.
AU - Even, J.
AU - Finlay, A.
AU - Frekers, D.
AU - Gwinner, G.
AU - Klawitter, R.
AU - Kootte, B.
AU - Kwiatkowski, A. A.
AU - Lascar, D.
AU - Leach, K. G.
AU - Leistenschneider, E.
AU - Lennarz, A.
AU - Mayer, A. J.
AU - Short, D.
AU - Thompson, R.
AU - Wieser, M.
AU - Lunney, D.
AU - Dilling, J.
PY - 2017/8/31
Y1 - 2017/8/31
N2 - 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.
AB - 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.
U2 - 10.1103/PhysRevC.96.024325
DO - 10.1103/PhysRevC.96.024325
M3 - Article
SN - 0556-2813
VL - 96
JO - Physical Review C
JF - Physical Review C
IS - 2
M1 - 024325
ER -