Search for intrinsic collective excitations in $^{152}\mathrm{Sm}$

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Search for intrinsic collective excitations in ${}^{152}{Sm}$

W. D. Kulp, J. L. Wood, P. E. Garrett, C. Y. Wu, D. Cline, J. M. Allmond, D. Bandyopadhyay, D. Dashdorj, S. N. Choudry, A. B. Hayes, H. Hua, M. G. Mynk, M. T. McEllistrem, C. J. McKay, J. N. Orce, R. Teng, and S. W. Yates

Phys. Rev. C 77, 061301(R) – Published 6 June 2008

Abstract

The 685 keV excitation energy of the first excited $0^{+}$ state in ${}^{152}{Sm}$ makes it an attractive candidate to explore expected two-phonon excitations at low energy. Multiple-step Coulomb excitation and inelastic neutron scattering studies of ${}^{152}{Sm}$ are used to probe the $E 2$ collectivity of excited $0^{+}$ states in this “soft” nucleus and the results are compared with model predictions. No candidates for two-phonon $K^{π} = 0^{+}$ quadrupole vibrational states are found. A $2^{+}, K = 2$ state with strong $E 2$ decay to the first excited $K^{π} = 0^{+}$ band and a probable $3^{+}$ band member are established.

Received 27 June 2007

DOI:https://doi.org/10.1103/PhysRevC.77.061301

Authors & Affiliations

W. D. Kulp¹, J. L. Wood¹, P. E. Garrett^2,3, C. Y. Wu^4,*, D. Cline⁴, J. M. Allmond^1,†, D. Bandyopadhyay^5,‡, D. Dashdorj^6,*, S. N. Choudry⁵, A. B. Hayes⁴, H. Hua⁴, M. G. Mynk⁷, M. T. McEllistrem⁵, C. J. McKay⁵, J. N. Orce⁵, R. Teng⁴, and S. W. Yates^5,7

¹School of Physics, Georgia Institute of Technology, Atlanta, Georgia 30332-0430, USA
²Department of Physics, University of Guelph, Guelph, Ontario N0B 1S0, Canada
³TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia V6T 2A3, Canada
⁴Nuclear Structure Research Laboratory, Department of Physics, University of Rochester, Rochester, New York 14627, USA
⁵Department of Physics and Astronomy, University of Kentucky, Lexington, Kentucky 40506-0055, USA
⁶Department of Physics, North Carolina State University, Raleigh, North Carolina 27695-8202, USA
⁷Department of Chemistry, University of Kentucky, Lexington, Kentucky 40506-0055, USA

^*Present address: Lawrence Livermore National Laboratory, Livermore, California 94551, USA.
^†Present address: Department of Physics, University of Richmond, Richmond, Virginia 23173, USA.
^‡Present address: TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia V6T 2A3, Canada.

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Vol. 77, Iss. 6 — June 2008

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Physical Review C

covering nuclear physics

Search for intrinsic collective excitations in ${}^{152}{Sm}$

W. D. Kulp, J. L. Wood, P. E. Garrett, C. Y. Wu, D. Cline, J. M. Allmond, D. Bandyopadhyay, D. Dashdorj, S. N. Choudry, A. B. Hayes, H. Hua, M. G. Mynk, M. T. McEllistrem, C. J. McKay, J. N. Orce, R. Teng, and S. W. Yates

Phys. Rev. C 77, 061301(R) – Published 6 June 2008

Abstract

Authors & Affiliations

Article Text (Subscription Required)

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Physical Review C

covering nuclear physics

Search for intrinsic collective excitations in Sm152

W. D. Kulp, J. L. Wood, P. E. Garrett, C. Y. Wu, D. Cline, J. M. Allmond, D. Bandyopadhyay, D. Dashdorj, S. N. Choudry, A. B. Hayes, H. Hua, M. G. Mynk, M. T. McEllistrem, C. J. McKay, J. N. Orce, R. Teng, and S. W. Yates

Phys. Rev. C 77, 061301(R) – Published 6 June 2008

Abstract

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Search for intrinsic collective excitations in ${}^{152}{Sm}$