Excitation of octupole, beta- and gamma-vibration band levels of 238U by inelastic neutron scattering

V. M. Maslov, Yu V. Porodzinskij, N. A. Tetereva, M. Baba, A. Hasegawa

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Experimental data on inelastic neutron scattering are analyzed in a Hauser-Feshbach-Moldauer approach with a coupled-channel estimates of the direct reaction contribution. For the direct excitation of the ground state rotational band levels with Jπ = 0+, 2+, 4+, 6+, 8+ the rigid rotator model was used, whereas for the direct excitation of members of the β-, γ- (Kπ = 02+, 03+, 2+) and first octupole band (Kπ = 0-) a soft-deformable rotator model was used. Quadrupole, octupole, hexadecapole and gamma-deformation parameters are defined by consistent analysis of excited rotational-vibrational band structures and excitation cross sections of the relevant levels. Structures evident in measured neutron emission spectra for En ∼ 1-6 MeV are correlated with excitation of levels of Kπ = 0- and Kπ = 02+, 03+, 2+ bands.

Original languageEnglish
Pages (from-to)212-245
Number of pages34
JournalNuclear Physics A
Volume764
Issue number1-4
DOIs
Publication statusPublished - 2006 Jan 9
Externally publishedYes

Keywords

  • Compound inelastic scattering
  • Coupled channel calculations
  • Inelastic scattering
  • Neutron emission spectra
  • Soft-deformable rotator
  • U

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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