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Phys. Rev. C 65, 064309 (2002) [8 pages]

States in 196Pt observed with the (n,n′γ) reaction

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E. Tavukcu1,*, L. A. Bernstein2, K. Hauschild2,†, J. A. Becker2, P. E. Garrett2, C. A. McGrath2,‡, D. P. McNabb2, W. Younes2, P. Navrátil2, R. O. Nelson3, G. D. Johns3, G. E. Mitchell1, and J. A. Cizewski4
1North Carolina State University, Raleigh, North Carolina 27695Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708
2Lawrence Livermore National Laboratory, Livermore, California 94551
3Los Alamos National Laboratory, Los Alamos, New Mexico 87545
4Rutgers University, New Brunswick, New Jersey 08903

Received 24 December 2001; published 31 May 2002

Levels in 196Pt have been studied via the 196Pt(n,n′γ) reaction for a range of neutron energies from 1 to 8 MeV. A “white” spectrum of neutrons was produced at the LANSCE/WNR facility, and the incident neutron energy was determined by the time-of-flight technique. Analysis of measured γγ coincidence data and γ-ray excitation functions, obtained with the large-scale Compton-suppressed Ge spectrometer GEANIE, yielded 13 new levels and 24 new γ rays below Ex=3 MeV in 196Pt. Interacting boson model (IBM) calculations with broken SO(6) dynamical symmetry were performed. A new experimental level was found to be a prime candidate for the Jπ=4+, σ=6, τ=5 IBM state.

© 2002 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevC.65.064309
DOI:
10.1103/PhysRevC.65.064309
PACS:
23.20.Lv, 21.10.-k

*Email address: tavukcu1@llnl.gov

†Present address: DAPNIA/SPhN CEA Saclay, Bat 703 l’Orme des Merisiers, F-91191 Gif-sur-Yvette, France.

‡Present address: Idaho National Engineering and Environmental Laboratory, P.O. Box 1625, Idaho Falls, ID 83415.

 
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