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首页> 外文期刊>Physical review, C >Spectroscopy and lifetime measurements near the proton drip line: P-26,P-27,P-28
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Spectroscopy and lifetime measurements near the proton drip line: P-26,P-27,P-28

机译：质子滴管附近的光谱和寿命测量：P-26，P-27，P-28

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摘要

We report on the observation of excited states in the neutron-deficient phosphorus isotopes P-26,P-27,P-28 via in-beam gamma-ray spectroscopy with both high-efficiency and high-resolution detector arrays. In P-26, a previously unobserved level has been identified at 244(3) keV, two new measurements of the astrophysically important 3/2(+) resonance in P-27 have been performed, gamma decays have been assigned to the proton-unbound levels at 2216 and 2483 keV in P-28, and the gamma-ray line-shape method has been used to make the first determination of the lifetimes of the two lowest-lying excited states in P-28. The expected Thomas-Ehrman shifts were calculated and applied to levels in the mirror nuclei. The resulting level energies from this procedure were then compared with the energies of known states in P-26,P-27,P-28.
机译：我们通过高效和高分辨率探测器阵列通过束束γ射线光谱报告了在中子缺乏磷同位素P-26，P-27，P-28中的激发态的观察。 在P-26中，已经在244（3）keV中鉴定了先前未观察的水平，已经进行了两种新的次数新的P-27中的3/2（+）共振的测量，已将伽马衰减分配给质子 - 在P-28中的2216和2483keV处的未绑定水平，以及伽马射线线形方法已经用于首先确定P-28中的两个最低叫兴奋状态的寿命。 计算预期的托马斯-Ehrman换档并施加到镜子核中的水平。 然后将来自该程序的所得水平能量与P-26，P-27，P-28中已知状态的能量进行比较。

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  • 来源
    《Physical review, C》 |2019年第6期|共10页
  • 作者

    Longfellow B.; Gade A.; Brown B. A.; Bazin D.; Bender P. C.; Bowry M.; Cottle P. D.; Elman B.; Lunderberg E.; Magilligan A.; Spieker M.; Weisshaar D.; Williams S. J.;

  • 作者单位

    Michigan State Univ Natl Superconducting Cyclotron Lab E Lansing MI 48824 USA;

    Michigan State Univ Natl Superconducting Cyclotron Lab E Lansing MI 48824 USA;

    Michigan State Univ Natl Superconducting Cyclotron Lab E Lansing MI 48824 USA;

    Michigan State Univ Natl Superconducting Cyclotron Lab E Lansing MI 48824 USA;

    Michigan State Univ Natl Superconducting Cyclotron Lab E Lansing MI 48824 USA;

    Michigan State Univ Natl Superconducting Cyclotron Lab E Lansing MI 48824 USA;

    Florida State Univ Dept Phys Tallahassee FL 32306 USA;

    Michigan State Univ Natl Superconducting Cyclotron Lab E Lansing MI 48824 USA;

    Michigan State Univ Natl Superconducting Cyclotron Lab E Lansing MI 48824 USA;

    Michigan State Univ Natl Superconducting Cyclotron Lab E Lansing MI 48824 USA;

    Michigan State Univ Natl Superconducting Cyclotron Lab E Lansing MI 48824 USA;

    Michigan State Univ Natl Superconducting Cyclotron Lab E Lansing MI 48824 USA;

    Michigan State Univ Natl Superconducting Cyclotron Lab E Lansing MI 48824 USA;

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  • 正文语种 eng
  • 中图分类 原子核物理学、高能物理学;
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