TY - JOUR
T1 - Excitation of octupole, beta- and gamma-vibration band levels of 238U by inelastic neutron scattering
AU - Maslov, V. M.
AU - Porodzinskij, Yu V.
AU - Tetereva, N. A.
AU - Baba, M.
AU - Hasegawa, A.
N1 - Funding Information:
The Research supported by International Science and Technology Center under the Project Agreement B-404 “Actinide Nuclear Data Evaluation”. The Funding Party for the Project is Japan.
PY - 2006/1/9
Y1 - 2006/1/9
N2 - 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.
AB - 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.
KW - Compound inelastic scattering
KW - Coupled channel calculations
KW - Inelastic scattering
KW - Neutron emission spectra
KW - Soft-deformable rotator
KW - U
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U2 - 10.1016/j.nuclphysa.2005.09.021
DO - 10.1016/j.nuclphysa.2005.09.021
M3 - Article
AN - SCOPUS:29744447894
VL - 764
SP - 212
EP - 245
JO - Nuclear Physics A
JF - Nuclear Physics A
SN - 0375-9474
IS - 1-4
ER -