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Single-particle Behavior at N=126: Isomeric Decays in Neutron-rich 204Pt

Steer, S. J.; Podolyak, Zs.; Pietri, S.; Gorska, M.; Regan, P. H.; Rudolph, Dirk LU ; Werner-Malento, E.; Garnsworthy, A. B.; Hoischen, Robert LU and Gerl, J., et al. (2008) In Physical Review C (Nuclear Physics) 78(6).
Abstract
The four proton-hole nucleus Pt-204 was populated in the fragmentation of an E/A = 1 GeV Pb-208 beam. The yrast structure of Pt-204 has been observed up to angular momentum I = 10h by detecting delayed gamma-ray transitions originating from metastable states. These long-lived excited states have been identified to have spin-parities of I-pi = (10(+)), (7(-)), and (5(-)) and half-lives of T-1/2 = 146(14) ns, 55(3) mu s, and 5.5(7) mu s, respectively. The structure of the magic N = 126 Pt-204 nucleus is discussed and understood in terms of the spherical shell model. The data suggest a revision of the two-body interaction for N = 126, Z < 82, which determines the evolution of nuclear structure toward the r-process waiting point nuclei.
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publication status
published
subject
in
Physical Review C (Nuclear Physics)
volume
78
issue
6
publisher
American Physical Society
external identifiers
  • wos:000262248100002
  • scopus:58049109148
ISSN
0556-2813
DOI
10.1103/PhysRevC.78.061302
language
English
LU publication?
yes
id
9f520662-da9b-462a-86d5-8a44bf64aa5a (old id 1375858)
date added to LUP
2009-05-08 16:45:01
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2017-07-02 04:12:40
@article{9f520662-da9b-462a-86d5-8a44bf64aa5a,
  abstract     = {The four proton-hole nucleus Pt-204 was populated in the fragmentation of an E/A = 1 GeV Pb-208 beam. The yrast structure of Pt-204 has been observed up to angular momentum I = 10h by detecting delayed gamma-ray transitions originating from metastable states. These long-lived excited states have been identified to have spin-parities of I-pi = (10(+)), (7(-)), and (5(-)) and half-lives of T-1/2 = 146(14) ns, 55(3) mu s, and 5.5(7) mu s, respectively. The structure of the magic N = 126 Pt-204 nucleus is discussed and understood in terms of the spherical shell model. The data suggest a revision of the two-body interaction for N = 126, Z &lt; 82, which determines the evolution of nuclear structure toward the r-process waiting point nuclei.},
  articleno    = {061302(R)},
  author       = {Steer, S. J. and Podolyak, Zs. and Pietri, S. and Gorska, M. and Regan, P. H. and Rudolph, Dirk and Werner-Malento, E. and Garnsworthy, A. B. and Hoischen, Robert and Gerl, J. and Wollersheim, H. J. and Maier, K. H. and Grawe, H. and Becker, F. and Bednarczyk, P. and Caceres, L. and Doornenbal, P. and Geissel, H. and Greabosz, J. and Kelic, A. and Kojouharov, I. and Kurz, N. and Montes, F. and Prokopowicz, W. and Saito, T. and Schaffner, H. and Tashenov, S. and Heinz, A. and Pfuetzner, M. and Kurtukian-Nieto, T. and Benzoni, G. and Jungclaus, A. and Balabanski, D. L. and Brandau, C. and Brown, B. A. and Bruce, A. M. and Catford, W. N. and Cullen, I. J. and Dombradi, Zs. and Estevez, M. E. and Gelletly, W. and Ilie, G. and Jolie, J. and Jones, G. A. and Kmiecik, M. and Kondev, F. G. and Kruecken, R. and Lalkovski, S. and Liu, Z. and Maj, A. and Myalski, S. and Schwertel, S. and Shizuma, T. and Walker, P. M. and Wieland, O.},
  issn         = {0556-2813},
  language     = {eng},
  number       = {6},
  publisher    = {American Physical Society},
  series       = {Physical Review C (Nuclear Physics)},
  title        = {Single-particle Behavior at N=126: Isomeric Decays in Neutron-rich 204Pt},
  url          = {http://dx.doi.org/10.1103/PhysRevC.78.061302},
  volume       = {78},
  year         = {2008},
}