Collective degrees of freedom in nuclear level densities

Alberto Mengoni, Alberto Yentura, Simone Masetti, Roberto Capote, Dimitri Kusnezov

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A finite temperature extension of the interacting boson model is developed and applied to the calculation of the collective partition function of transitional even-even Sm isotopes. The effective boson number decreases with increasing temperature, leading to a natural damping of collectivity. Positive and negative parity contributions to the boson partition function are computed and compared to rotational and vibrational enhancement factors commonly used in the generalized superfluid model. © 2014 Atomic Energy Society of Japan. All Rights Reserved.
Original languageEnglish
Pages (from-to)766 - 769
Number of pages4
JournalJournal of Nuclear Science and Technology
Publication statusPublished - 2002
Externally publishedYes


All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Nuclear Energy and Engineering

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