Collectivity of ${0}^{+}$ states in $^{160}\mathrm{Gd}$

Collectivity of $0^{+}$ states in ${}^{160}{Gd}$

S. R. Lesher, C. Casarella, A. Aprahamian, B. P. Crider, R. Ikeyama, I. R. Marsh, M. T. McEllistrem, E. E. Peters, F. M. Prados-Estévez, M. K. Smith, Z. R. Tully, J. R. Vanhoy, and S. W. Yates

Phys. Rev. C 91, 054317 – Published 18 May 2015

Abstract

Excited $0^{+}$ states in ${}^{160}{Gd}$ have been examined with the $(n, n^{'} γ)$ reaction at incident neutron energies up to 2.8 MeV. Gamma-ray excitation functions and angular distribution measurements allow the confirmation of the existence of $0^{+}$ states at 1379.70 keV and 1558.30 keV, but we reject the assignments of additional previously suggested $0^{+}$ candidates. Limits on the level lifetimes of the observed $0^{+}$ states permit an evaluation of the collectivity of these states.

Received 14 October 2014
Revised 3 April 2015

DOI:https://doi.org/10.1103/PhysRevC.91.054317

Authors & Affiliations

S. R. Lesher^1,2,*, C. Casarella², A. Aprahamian², B. P. Crider³, R. Ikeyama¹, I. R. Marsh¹, M. T. McEllistrem³, E. E. Peters⁴, F. M. Prados-Estévez³, M. K. Smith², Z. R. Tully¹, J. R. Vanhoy⁵, and S. W. Yates^3,4

¹Department of Physics, University of Wisconsin–La Crosse, La Crosse, Wisconsin 54601, USA
²Department of Physics, University of Notre Dame, Notre Dame, Indiana 46556, USA
³Department of Physics and Astronomy, University of Kentucky, Lexington, Kentucky 40506, USA
⁴Department of Chemistry, University of Kentucky, Lexington, Kentucky 40506, USA
⁵Department of Physics, United States Naval Academy, Annapolis, Maryland 21402, USA

^*slesher@uwlax.edu

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Vol. 91, Iss. 5 — May 2015

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Physical Review C

covering nuclear physics

Collectivity of $0^{+}$ states in ${}^{160}{Gd}$

S. R. Lesher, C. Casarella, A. Aprahamian, B. P. Crider, R. Ikeyama, I. R. Marsh, M. T. McEllistrem, E. E. Peters, F. M. Prados-Estévez, M. K. Smith, Z. R. Tully, J. R. Vanhoy, and S. W. Yates

Phys. Rev. C 91, 054317 – Published 18 May 2015

Abstract

Authors & Affiliations

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Physical Review C

covering nuclear physics

Collectivity of 0+ states in Gd160

S. R. Lesher, C. Casarella, A. Aprahamian, B. P. Crider, R. Ikeyama, I. R. Marsh, M. T. McEllistrem, E. E. Peters, F. M. Prados-Estévez, M. K. Smith, Z. R. Tully, J. R. Vanhoy, and S. W. Yates

Phys. Rev. C 91, 054317 – Published 18 May 2015

Abstract

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Collectivity of $0^{+}$ states in ${}^{160}{Gd}$