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首页> 外文期刊>Physical Review C >Spectroscopy of the long-lived excited state in the neutron-deficient nuclides ~(195,197,199)Po by precision mass measurements
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Spectroscopy of the long-lived excited state in the neutron-deficient nuclides ~(195,197,199)Po by precision mass measurements

机译:通过精确质量测量,中子缺陷核素〜(195,197,199)的远期激发状态的光谱学

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摘要

Direct mass measurements of the low-spin 3/2~− and high-spin 13/2~+ states in the neutron-deficient isotopes ~(195)Po and ~(197)Po were performed with the Penning-trap mass spectrometer ISOLTRAP at ISOLDE-CERN. These measurements allow the determination of the excitation energy of the isomeric state arising from the νi_(13/2) orbital in ~(195,197)Po. Additionally, the excitation energy of isomeric states of lead, radon, and radium isotopes in this region were obtained from α-decay chains. These excitation energies complete the knowledge of the energy systematics in the region and confirm that the 13/2~+ states remain isomeric, independent of the number of valence neutrons.
机译:在中子缺陷同位素中的低旋转3/2〜 - 和高旋转13/2〜+状态的直接质量测量〜(195)PO和〜(197)PO进行了PENING-TRAP质谱仪ICLTRAP在Isolde-Cern。这些测量允许确定从〜(195,197)PO中的νI_(13/2)轨道引起的异构状态的激发能量。另外,从α-衰减链中获得了该区域中的铅,氡和镭同位素的异构状态的激发能量。这些励磁能量完成了该区域中能量系统的知识,并确认了13/2〜+状态仍然是异构的,与价中子的数量无关。

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  • 来源
    《Physical Review C》 |2017年第2017期|044325.1-044325.9|共9页
  • 作者单位

    School of Physics and Astronomy The University of Manchester Manchester United Kingdom Al-jouf University Sakakah Saudi Arabia;

    Max-Planck-Institut fuer Kernphysik Heidelberg Germany;

    Max-Planck-Institut fuer Kernphysik Heidelberg Germany;

    School of Physics and Astronomy The University of Manchester Manchester United Kingdom KU Leuven Instituut voor Kern- en Stralingsfysica Leuven Belgium;

    School of Physics and Astronomy The University of Manchester Manchester United Kingdom Engineering Department CERN Geneva Switzerland TRIUMF Vancouver British Columbia Canada.;

    School of Physics and Astronomy The University of Manchester Manchester United Kingdom KU Leuven Instituut voor Kern- en Stralingsfysica Leuven Belgium;

    Petersburg Nuclear Physics Institute NRC Kurchatov Institute Gatchina Russia;

    Engineering Department CERN Geneva Switzerland;

    Max-Planck-Institut fuer Kernphysik Heidelberg Germany;

    GSI Helmholtzzentrum fuer Schwerionenforschung GmbH Darmstadt Germany;

    Department of Physics and Astronomy Ghent University Ghent Belgium;

    Max-Planck-Institut fuer Kernphysik Heidelberg Germany Experimental Physics Department CERN Geneva Switzerland;

    CSNSM-IN2P3-CNRS Universite de Paris Sud Orsay France;

    Experimental Physics Department CERN Geneva Switzerland;

    Experimental Physics Department CERN Geneva Switzerland;

    Engineering Department CERN Geneva Switzerland;

    GSI Helmholtzzentrum fuer Schwerionenforschung GmbH Darmstadt Germany;

    Ernst-Moritz-Arndt-Universitaet Institut fuer Physik Greifswald Germany;

    Engineering Department CERN Geneva Switzerland Institut fuer Physik Johannes Gutenberg Universitaet Mainz Germany;

    Engineering Department CERN Geneva Switzerland;

    Ernst-Moritz-Arndt-Universitaet Institut fuer Physik Greifswald Germany;

    Engineering Department CERN Geneva Switzerland Petersburg Nuclear Physics Institute NRC Kurchatov Institute Gatchina Russia;

    Experimental Physics Department CERN Geneva Switzerland Institut fuer Kern- und Teilchenphysik Technische Universitaet Dresden Germany;

    Ernst-Moritz-Arndt-Universitaet Institut fuer Physik Greifswald Germany;

    Max-Planck-Institut fuer Kernphysik Heidelberg Germany ARC Centre of Excellence for Engineered Quantum Systems School of Physics The University of Sydney Australia;

    Institut fuer Kern- und Teilchenphysik Technische Universitaet Dresden Germany;

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