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Phys. Rev. C 76, 044315 (2007) [9 pages]

High-spin states in 191,193Au and 192Pt: Evidence for oblate deformation and triaxial shapes

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Y. Oktem1, D. L. Balabanski2, B. Akkus1, C. W. Beausang3,4, M. Bostan1, R. B. Cakirli1, R. F. Casten3, M. Danchev5, M. Djongolov5, M. N. Erduran1, S. Erturk6, K. A. Gladniski7, G. Gürdal8, J. Tm. Goon9, D. J. Hartley5,10, A. A. Hecht3,11, R. Krücken3, N. Nikolov5,7, J. R. Novak3, G. Rainovski7, L. L. Riedinger5, I. Yigitoglu12, N. V. Zamfir3,13, and O. Zeidan5
1Department of Physics, Istanbul University, Vezneciler, 34459 Istanbul, Turkey
2Institute for Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences, BG-1784 Sofia, Bulgaria
3Wright Nuclear Structure Laboratory, Yale University, New Haven, Connecticut 06520, USA
4Department of Physics, University of Richmond, Richmond, Virginia 23173, USA
5Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996, USA
6Department of Physics, Nigde University, 51200 Nigde, Turkey
7Faculty of Physics, St. Kliment Ohridski University of Sofia, BG-1164 Sofia, Bulgaria
8Clark University, Worchester, Massachusetts 01610, USA
9Department of Physics and Astronomy, Louisiana State University, Baton Rouge, Louisiana 70803-4001, USA
10Department of Physics, U.S. Naval Academy, Annapolis, Maryland 21402, USA
11Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742, USA
12Hasan Ali Yucel Faculty of Education, Istanbul University, Beyazit, 34470 Istanbul, Turkey,
13National Institute for Physics and Nuclear Engineering, Bucharest-Magurele, Romania

See Also: Erratum

Received 27 November 2006; published 18 October 2007

High-spin states of 191,193Au and 192Pt have been populated in the 186W(11B, xn) and 186W(11B, p4n) reactions, respectively, at a beam energy of 68 MeV and their γ decay was studied using the YRAST Ball detector array at the Wright Nuclear Structure Laboratory at Yale University. The level scheme of 193Au has been extended up to Iπ=55/2+. New transitions were observed also in 191Au and 192Pt. Particle-plus-Triaxial-Rotor (PTR) and Total Routhian Surface (TRS) calculations were performed to determine the equilibrium deformations of the Au isotopes. The predictions for oblate deformations in these nuclei are in agreement with the experimental data. Development of nonaxial shapes is discussed within the framework of the PTR model.

© 2007 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevC.76.044315
DOI:
10.1103/PhysRevC.76.044315
PACS:
29.30.Kv, 21.60.Ev, 23.20.Lv, 27.80.+w

See Also

Erratum: Y. Oktem, D. L. Balabanski, B. Akkus, C. W. Beausang, M. Bostan, R. B. Cakirli, R. F. Casten, M. Danchev, M. Djongolov, M. N. Erduran, S. Erturk, K. A. Gladniski, G. Gürdal, J. TM. Goon, D. J. Hartley, A. A. Hecht, R. Krücken, N. Nikolov, J. R. Novak, G. Rainovski, L. L. Riedinger, I. Yigitoglu, N. V. Zamfir, and O. Zeidan, Erratum: High-spin states in 191,193Au and 192Pt: Evidence for oblate deformation and triaxial shapes [Phys. Rev. C 76, 044315 (2007)], Phys. Rev. C 78, 069904 (2008).

 
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