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APS » Journals » Phys. Rev. Lett. » Volume 92 » Issue 17
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Phys. Rev. Lett. 92, 172501 (2004) [4 pages]

Evidence for M1 Scissors Resonances Built on the Levels in the Quasicontinuum of 163Dy

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M. Krtička1, F. Bečvář1,*, J. Honzátko2, I. Tomandl2, M. Heil3, F. Käppeler3, R. Reifarth4, F. Voss3, and K. Wisshak3
1Faculty of Mathematics and Physics, Charles University, V Holešovičkách 2, CZ-180 00 Prague 8, Czech Republic
2Nuclear Physics Institute of the Czech Academy of Sciences, CZ-250 68 Rež near Prague, Czech Republic
3Forschungszentrum Karlsruhe, Institut für Kernphysik, Postfach 3640, D-76021 Karlsruhe, Germany
4Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA

Received 15 July 2003; published 29 April 2004

Spectra of two-step γ cascades following the thermal 162Dy(n,γ)163Dy reaction have been measured. Distinct peaklike structures observed at the midpoints of these spectra are interpreted as a manifestation of the low-energy isovector M1 vibrational mode of excited 163Dy nuclei.

© 2004 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.92.172501
DOI:
10.1103/PhysRevLett.92.172501
PACS:
23.20.Lv, 24.30.Gd, 25.40.Lw, 27.70.+q

*Corresponding author.

Email address: becvar@mbox.troja.mff.cuni.cz

 
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