Isomeric Decay Studies in Neutron-rich N~126 Nuclei

Isomeric Decay Studies in Neutron-rich N~126 Nuclei
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富中子 N~126 原子核的异构衰变研究

DOI：
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发表时间：
2009
期刊：
影响因子：
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通讯作者：
O. Wieland
O. Wieland
中科院分区：
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文献类型：
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作者：
S. Steer;Z. Podolyák;S. Pietri;M. Gorska;G. Farrelly;P. Regan;D. Rudolph;A. Garnsworthy;R. Hoischen;J. Gerl;H. Wollersheim;H. Grawe;K. Maier;F. Becker;P. Bednarczyk;L. Caceres;P. Doornenbal;H. Geissel;J. Grbosz;A. Kelić;I. Kojouharov;N. Kurz;F. Montes;W. Prokopowicz;T. Saito;H. Schaffner;S. Tashenov;A. Heinz;T. Kurtukian;G. Benzoni;M. Pfützner;A. Jungclaus;D. Balabanski;C. Brandau;A. Brown;A. Bruce;W. Catford;I. Cullen;Z. Dombrádi;M. Estevez;W. Gelletly;G. Ilie;J. Jolie;G. Jones;M. Kmiecik;F. Kondev;R. Krücken;S. Lalkovski;Zhong Liu;A. Maj;S. Myalski;S. Schwertel;T. Shizuma;P. Walker;E. Werner;O. Wieland

文献摘要

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重丰中子核通过E/A = 1 GeV 208 Pb束流的相对论能量碎裂填充。通过片段分离器选择并鉴定感兴趣的细胞核，然后植入被动塑料塞中。用RISING阵列探测了内同质异能素衰变后的缓发γ射线。获得了一些Z = 73-80（Ta-Hg）的核的实验信息，提供了长扁过渡区以及N = 126闭壳层核的新信息。
Heavy neutron-rich nuclei were populated via relativistic energy fragmentation of a E/A = 1 GeV208Pb beam. The nuclei of interest were selected and identified by a fragment separator and then implanted in a passive plastic stopper. Delayed γ rays following internal isomeric decays were detected by the RISING array. Experimental information was obtained on a number of nuclei with Z = 73-80 (Ta-Hg), providing new information both on the prolate-oblate transitional region as well as on the N = 126 closed shell nuclei.