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1.	Podolyak, Zs., et al. (author) Structure of Neutron-rich Nuclei Around the N=126 Closed Shell; the Yrast Structure of 205Au up to Spin-parity I = (19/2+) 2009 In: European Physical Journal A. - : Springer Science and Business Media LLC. - 1434-6001 .- 1434-601X. ; 42:3, s. 489-493 Conference paper (peer-reviewed)abstract Heavy neutron-rich nuclei have been populated through the relativistic fragmentation of a Pb-208(82) beam at E/A = 1 GeV on a 2.5 g/cm(2) thick Be target. The synthesised nuclei were selected and identified in-flight using the fragment separator at GSI. Approximately 300 ns after production, the selected nuclei were implanted in an similar to 8 mm thick perspex stopper, positioned at the centre of the RISING gamma-ray detector spectrometer array. A previously unreported isomer with a half-life T-1/2 = 163(5) ns has been observed in the N = 126 closed-shell nucleus Au-205(79). Through gamma-ray singles and gamma-gamma coincidence analysis a level scheme was established. The comparison with a shell model calculation tentatively identifies the spin-parity of the excited states, including the isomer itself, which is found to be I-pi = (19/2(+)).
2.	Steer, S. J., et al. (author) Isomeric Decay Studies In Neutron-Rich N Approximate To 126 Nuclei 2009 In: International Journal Of Modern Physics E-Nuclear Physics. - 0218-3013. ; 18:4, s. 1002-1007 Conference paper (peer-reviewed)abstract Heavy neutron-rich nuclei were populated via relativistic energy fragmentation of a E/A= 1 GeV Pb-208 beam. The nuclei of interest were selected and identified by a fragment separator and then implanted in a passive plastic stopper. Delayed. 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.

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Type of publication: conference paper (2)

Type of content: peer-reviewed (2)

Author/Editor: Saito, T (2); Liu, Z. (2); Kurz, N (2); Heinz, A (2); Kondev, F G (2); Balabanski, D.L. (2); show more...; Bednarczyk, P. (2); Benzoni, G. (2); Gerl, J. (2); Jungclaus, A. (2); Kojouharov, I. (2); Maj, A. (2); Rudolph, Dirk (2); Pietri, S. (2); Regan, P. H. (2); Schaffner, H. (2); Walker, P.M. (2); Wieland, O. (2); Wollersheim, H.J. (2); Geissel, H. (2); Prokopowicz, W. (2); Doornenbal, P. (2); Bruce, A.M. (2); Steer, S. J. (2); Gorska, M. (2); Grawe, H. (2); Cullen, I. J. (2); Gelletly, W. (2); Grebosz, J. (2); Hoischen, Robert (2); Lalkovski, S. (2); Garnsworthy, A. B. (2); Estevez, M. E. (2); Tashenov, S. (2); Maier, K. H. (2); Becker, F. (2); Caceres, L. (2); Catford, W.N. (2); Jolie, J. (2); Shizuma, T. (2); Brandau, C. (2); Ilie, G. (2); Kmiecik, M. (2); Werner-Malento, E. (2); Kurtukian-Nieto, T. (2); Kruecken, R. (2); Jones, G. A. (2); Montes, F. (2); Schwertel, S. (2); Myalski, S. (2); show less...

University: Lund University (2)

Language: English (2)

Research subject (UKÄ/SCB): Natural sciences (2)

Year: 2009 (2)Undo refine

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