Nuclear Physics and Atomic Energy

ядерна ф≥зика та енергетика
Nuclear Physics and Atomic Energy

  ISSN: 1818-331X (Print), 2074-0565 (Online)
  Publisher: Institute for Nuclear Research of the National Academy of Sciences of Ukraine
  Languages: Ukrainian, English, Russian
  Periodicity: 4 times per year

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Nucl. Phys. At. Energy 2016, volume 17, issue 4, pages 337-348.
Section: Nuclear Physics.
Received: 03.08.2016; Accepted: 14.02.2017; Published online: 10.04.2017.
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https://doi.org/

To the nature of 0+ excitations in deformed nuclei of actinides

A. I. Levon1,*, P. Alexa2, S. Pascu3, P. G. Thirolf4

1 Institute for Nuclear Research, National Academy of Sciences of Ukraine, Kyiv, Ukraine
2 Institute of Physics and Institute of Clean Technologies, Technical University of Ostrava, Czech Republic
3 H. Hulubei National Institute of Physics and Nuclear Engineering, Bucharest, Romania
4 Fakultat fur Physik, Ludwig-Maximilians-Universitat Munchen, Garching, Germany


*Corresponding author. E-mail address: levon@kinr.kiev.ua

Abstract: The excitation spectra in the deformed nucleus 232U have been studied by means of the (p, t) reaction. 0+ assignments for 13 excited states and up to spin 6+ for other states are made from the angular distributions of tritons and the coupled-channel approximation analysis. Sequences of states are selected which can be treated as rotational bands. Moments of inertia have been derived from these sequences, whose values may be considered as evidence of the two- or one-phonon nature of these 0+ excitations. Experimental data are compared with interacting boson model (IBM) and quasiparticle-phonon model (QPM) calculations.

Keywords: 0+ states, collective bands, moments of inertia, nuclear models.

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