Properties of $^{112}\mathrm{Cd}$ from the $(n,{n}^{'}\ensuremath{\gamma})$ reaction: Lifetimes and transition rates

Properties of ${}^{112}{Cd}$ from the $(n, n^{'} γ)$ reaction: Lifetimes and transition rates

P. E. Garrett, K. L. Green, H. Lehmann, J. Jolie, C. A. McGrath, M. Yeh, and S. W. Yates

Phys. Rev. C 75, 054310 – Published 8 May 2007

Abstract

Lifetimes of levels below 4 MeV in ${}^{112}{Cd}$ have been measured using the Doppler shift attenuation technique following inelastic scattering of monoenergetic neutrons. Reduced transition rates are determined using the results of previous studies and the current lifetimes. The electromagnetic properties of ${}^{112}{Cd}$ are outlined, and together with results from previous nucleon-transfer studies and inelastic scattering, the levels in ${}^{112}{Cd}$ are interpreted in terms of single-particle configurations and collective excitations, assuming a vibrational model with intruder states. The collective states and their γ-ray decays are compared with IBM-2 model calculations that allow for the mixing between the normal phonon states and intruder configurations. Levels below 1.5 MeV are reproduced reasonably well, whereas at higher excitation energy the calculations fail to reproduce the data in detail.

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Received 9 February 2007

DOI:https://doi.org/10.1103/PhysRevC.75.054310

Authors & Affiliations

P. E. Garrett and K. L. Green

Department of Physics, University of Guelph, Guelph, Ontario, N1G2W1 Canada

H. Lehmann^*

Institut de Physique, Université de Fribourg, Pérolles, CH-1700 Fribourg, Switzerland

J. Jolie

Institut für Kernphysik, Universtät zu Köln, Zülpicherstrasse 77, D-50937 Köln, Germany

C. A. McGrath^†, M. Yeh^‡, and S. W. Yates

Departments of Chemistry and Physics & Astronomy, University of Kentucky, Lexington, Kentucky 40506-0055, USA

^*Present address: Swisscom AG, Innovations, CH-3050 Bern, Switzerland.
^†Present address: Idaho National Engineering and Environmental Laboratory, P.O. Box 1625, Idaho Falls, Idaho 83415.
^‡Present address: Chemistry Department, Brookhaven National Laboratory Upton, NY 11973-5000.

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Vol. 75, Iss. 5 — May 2007

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Physical Review C

covering nuclear physics

Properties of ${}^{112}{Cd}$ from the $(n, n^{'} γ)$ reaction: Lifetimes and transition rates

P. E. Garrett, K. L. Green, H. Lehmann, J. Jolie, C. A. McGrath, M. Yeh, and S. W. Yates

Phys. Rev. C 75, 054310 – Published 8 May 2007

Abstract

Authors & Affiliations

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Physical Review C

covering nuclear physics

Properties of Cd112 from the (n,n'γ) reaction: Lifetimes and transition rates

P. E. Garrett, K. L. Green, H. Lehmann, J. Jolie, C. A. McGrath, M. Yeh, and S. W. Yates

Phys. Rev. C 75, 054310 – Published 8 May 2007

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Properties of ${}^{112}{Cd}$ from the $(n, n^{'} γ)$ reaction: Lifetimes and transition rates