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.
All Science Journal Classification (ASJC) codes
- Nuclear and High Energy Physics
- Nuclear Energy and Engineering
Mengoni, A., Yentura, A., Masetti, S., Capote, R., & Kusnezov, D. (2002). Collective degrees of freedom in nuclear level densities. Journal of Nuclear Science and Technology, 39, 766 - 769. https://doi.org/10.1080/00223131.2002.10875210