Mass determination near N=20 for Al and Na isotopes
Mass determination near N=20 for Al and Na isotopes
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Al 和 Na 同位素在 N=20 附近的质量测定
DOI：
10.1103/physrevc.96.024325
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发表时间：
2017
影响因子：
3.1
通讯作者：
J. Dilling
中科院分区：
文献类型：
--
作者：
A. Gallant;M. Alanssari;J. Bale;C. Andreoiu;B. Barquest;U. Chowdhury;J. Even;A. Finlay;D. Frekers;G. Gwinner;R. Klawitter;B. Kootte;A. Kwiatkowski;D. Lascar;K. Leach;E. Leistenschneider;A. Lennarz;A. Mayer;D. Short;R. Thompson;M. Wieser;D. Lunney;J. Dilling
我们报告的质量测量Na-31，Na-32和Al-29，Al-34，Al-35，进行与TITAN潘宁阱质谱仪在TRIUMF。Na-31、Na-32的质量过剩分别为12246（14）和18638（37）keV，Al-29、Al-34、Al-35的质量过剩分别为-18207.77（37）、-3000.5（29）和-223.7（73）keV。我们的测量证实了Mg-33和Al-34的双中子分离能的交叉观察。我们没有观察到最近报道的Al-34的长寿命同质异能态，但根据先前测量的半衰期，确定了基态的质量值。
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.