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Coulomb excitation of neutron-rich Zn isotopes: First observation of the 2(1)(+) state in Zn-80

Van de Walle, J.; Aksouh, F.; Ames, F.; Behrens, T.; Bildstein, V.; Blazhev, A.; Cederkäll, Joakim LU ; Clement, E.; Cocolios, T. E. and Davinson, T., et al. (2007) In Physical Review Letters 99(14).
Abstract
Neutron-rich, radioactive Zn isotopes were investigated at the Radioactive Ion Beam facility REX-ISOLDE (CERN) using low-energy Coulomb excitation. The energy of the 2(1)(+) state in Zn-78 could be firmly established and for the first time the 2(+)-> 0(1)(+) transition in Zn-80 was observed at 1492(1) keV. B(E2,2(1)(+)-> 0(1)(+)) values were extracted for Zn-74,Zn-76,Zn-78,Zn-80 and compared to large scale shell model calculations. With only two protons outside the Z=28 proton core, Zn-80 is the lightest N=50 isotone for which spectroscopic information has been obtained to date. Two sets of advanced shell model calculations reproduce the observed B(E2) systematics. The results for N=50 isotones indicate a good N=50 shell closure and... (More)
Neutron-rich, radioactive Zn isotopes were investigated at the Radioactive Ion Beam facility REX-ISOLDE (CERN) using low-energy Coulomb excitation. The energy of the 2(1)(+) state in Zn-78 could be firmly established and for the first time the 2(+)-> 0(1)(+) transition in Zn-80 was observed at 1492(1) keV. B(E2,2(1)(+)-> 0(1)(+)) values were extracted for Zn-74,Zn-76,Zn-78,Zn-80 and compared to large scale shell model calculations. With only two protons outside the Z=28 proton core, Zn-80 is the lightest N=50 isotone for which spectroscopic information has been obtained to date. Two sets of advanced shell model calculations reproduce the observed B(E2) systematics. The results for N=50 isotones indicate a good N=50 shell closure and a strong Z=28 proton core polarization. The new results serve as benchmarks to establish theoretical models, predicting the nuclear properties of the doubly magic nucleus Ni-78. (Less)
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Physical Review Letters
volume
99
issue
14
publisher
American Physical Society
external identifiers
  • wos:000249974000017
  • scopus:34948844482
ISSN
1079-7114
DOI
10.1103/PhysRevLett.99.142501
language
English
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yes
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d2c317b2-1603-47a1-aacf-18bb0f2eacdf (old id 652394)
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2008-01-02 15:46:54
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@article{d2c317b2-1603-47a1-aacf-18bb0f2eacdf,
  abstract     = {Neutron-rich, radioactive Zn isotopes were investigated at the Radioactive Ion Beam facility REX-ISOLDE (CERN) using low-energy Coulomb excitation. The energy of the 2(1)(+) state in Zn-78 could be firmly established and for the first time the 2(+)-> 0(1)(+) transition in Zn-80 was observed at 1492(1) keV. B(E2,2(1)(+)-> 0(1)(+)) values were extracted for Zn-74,Zn-76,Zn-78,Zn-80 and compared to large scale shell model calculations. With only two protons outside the Z=28 proton core, Zn-80 is the lightest N=50 isotone for which spectroscopic information has been obtained to date. Two sets of advanced shell model calculations reproduce the observed B(E2) systematics. The results for N=50 isotones indicate a good N=50 shell closure and a strong Z=28 proton core polarization. The new results serve as benchmarks to establish theoretical models, predicting the nuclear properties of the doubly magic nucleus Ni-78.},
  author       = {Van de Walle, J. and Aksouh, F. and Ames, F. and Behrens, T. and Bildstein, V. and Blazhev, A. and Cederkäll, Joakim and Clement, E. and Cocolios, T. E. and Davinson, T. and Delahaye, P. and Eberth, J. and Ekström, Andreas and Fedorov, D. V. and Fedosseev, V. N. and Fraile, L. M. and Franchoo, S. and Gernhauser, R. and Georgiev, G. and Habs, D. and Heyde, K. and Huber, G. and Huyse, M. and Ibrahim, F. and Ivanov, O. and Iwanicki, J. and Jolie, J. and Kester, O. and Koester, U. and Kroell, T. and Kruecken, R. and Lauer, M. and Lisetskiy, A. F. and Lutter, R. and Marsh, B. A. and Mayet, P. and Niedermaier, O. and Nilsson, T. and Pantea, M. and Perru, O. and Raabe, R. and Reiter, P. and Sawicka, M. and Scheit, H. and Schrieder, G. and Schwalm, D. and Seliverstov, M. D. and Sieber, T. and Sletten, G. and Smirnova, N. and Stanoiu, M. and Stefanescu, I. and Thomas, J.-C. and Valiente-Dobon, J. J. and Van Duppen, P. and Verney, D. and Voulot, D. and Warr, N. and Weisshaar, D. and Wenander, F. and Wolf, B. H. and Zielinska, M.},
  issn         = {1079-7114},
  language     = {eng},
  number       = {14},
  publisher    = {American Physical Society},
  series       = {Physical Review Letters},
  title        = {Coulomb excitation of neutron-rich Zn isotopes: First observation of the 2(1)(+) state in Zn-80},
  url          = {http://dx.doi.org/10.1103/PhysRevLett.99.142501},
  volume       = {99},
  year         = {2007},
}