Shell-Structure and Pairing Interaction in Superheavy Nuclei: Rotational Properties of the Z=104 Nucleus 256Rf
Greenlees, P., Rubert, J., Piot, J., Gall, B., Andersson, L.L., Asai, M., Asfari, Z., Cox, D.M., Dechery, F., Dorvaux, O., Grahn, T., Hauschild, K., Henning, G., Herzan, A., Herzberg, R.-D., Hessberger, F. P., Jakobsson, U., Jones, P., Julin, R., . . . Venhart, M. (2012). Shell-Structure and Pairing Interaction in Superheavy Nuclei: Rotational Properties of the Z=104 Nucleus 256Rf. Physical Review Letters, 109(1), 012501. https://doi.org/10.1103/PhysRevLett.109.012501
Published in
Physical Review LettersDate
2012Copyright
© 2012 the Authors. Published by the American Physical Society under the terms of the Creative Commons Attribution 3.0 License.
The rotational band structure of the Z ¼ 104 nucleus 256Rf has been observed up to a tentative spin of
20@ using state-of-the-art -ray spectroscopic techniques. This represents the first such measurement in a
superheavy nucleus whose stability is entirely derived from the shell-correction energy. The observed
rotational properties are compared to those of neighboring nuclei and it is shown that the kinematic and
dynamic moments of inertia are sensitive to the underlying single-particle shell structure and the specific
location of high-j orbitals. The moments of inertia therefore provide a sensitive test of shell structure and
pairing in superheavy nuclei which is essential to ensure the validity of contemporary nuclear models in
this mass region. The data obtained show that there is no deformed shell gap at Z ¼ 104, which is
predicted in a number of current self-consistent mean-field models.
Publisher
American Physical SocietyISSN Search the Publication Forum
0031-9007Publication in research information system
https://converis.jyu.fi/converis/portal/detail/Publication/22304646
Metadata
Show full item recordCollections
License
Except where otherwise noted, this item's license is described as © 2012 the Authors. Published by the American Physical Society under the terms of the Creative Commons Attribution 3.0 License.
Related items
Showing items with similar title or keywords.
-
Properties of nuclei in the nobelium region studied within the covariant, Skyrme, and Gogny energy density functionals
Dobaczewski, Jacek; Afanasjev, A. V.; Bender, M.; Robledo, L. M.; Shi, Yue (Elsevier BV, 2015)We calculate properties of the ground and excited states of nuclei in the nobelium region for proton and neutron numbers of 92≤Z≤104 and 144≤N≤156, respectively. We use three different energy-density-functional (EDF) ... -
Impact of the surface energy coefficient on the deformation properties of atomic nuclei as predicted by Skyrme energy density functionals
Ryssens, W.; Bender, M.; Bennaceur, Karim; Heenen, P.-H.; Meyer, J. (American Physical Society, 2019)Background: In the framework of nuclear energy density functional (EDF) methods, many nuclear phenomena are related to the deformation of intrinsic states. Their accurate modeling relies on the correct description of the ... -
Spin-dependent WIMP-nucleus scattering off 125Te, 129Xe, and 131Xe in the microscopic interacting boson-fermion model
Pirinen, Pekka; Kotila, Jenni; Suhonen, Jouni (Elsevier, 2019)We perform calculations of structure functions for elastic and inelastic spin-dependent scattering of weakly interacting massive particles (WIMPs) off 125Te, 129Xe, and 131Xe. The nuclear structure calculations are performed ... -
First microscopic evaluation of spin-dependent WIMP-nucleus scattering off 183W
Pirinen, P.; Kotila, J.; Suhonen, J. (Elsevier BV, 2021)We perform the first consistent calculation of elastic-scattering and inelastic-scattering structure functions for spin-dependent WIMP-nucleus scattering for 183W in a microscopic nuclear-theory framework. The nuclear ... -
Halo-like structure in 7He nucleus
Demyanova, Alla S.; Ogloblin, Alexey A.; Chernishev, B.A.; Goncharov, Sergey A.; Gurov, Yu B.; Lapushkin, S.V.; Belyaeva, Tatyana L.; Danilov, Andrei N.; Starastsin, V.I.; Trzaska, Wladyslaw H. (IOP Publishing Ltd, 2020)A study of the neutron structure of the ground state of 7He has been performed by means of registration and analysis of the decay channels of the residual nuclei following absorption of stopped pions. In particular, the ...