Abstract
The wobbling mode of the collective angular momentum expressed as a phonon excitation with a phonon quantum number, n{sub w}, and wobbling frequency, {Dirac_h}{omega}{sub w}, is unique to the rotational motion of a triaxial nucleus. The presence of quasiparticle alignment introduces characteristic trends in the electromagnetic decay properties for transitions between bands with different wobbling quantum number. Evidence for the wobbling mode, and thereby triaxiality, has been obtained in several even-N Lu isotopes, {sup 163}Lu being the best studied case with the strongest population of the wobbling excitations. As an important support for the wobbling interpretation, recent lifetime measurements in {sup 163}Lu have shown that the quadrupole moments of the bands with n{sub w} = 0 and n{sub w} = 1 are very similar. Triaxial strongly deformed shapes are expected also for neighbouring Hf nuclei, but efforts to identify wobbling in the Hf isotopes where many bands are established, resembling those found in the Lu isotopes, has so far failed. To date the even-N Lu isotopes, {sup 161,163,165,167}Lu, are the only nuclei in which wobbling excitations are identified.(author)
Hagemann, B G
[1]
- Niels Bohr Institute, University of Copenhagen, Copenhagen (Denmark)
Citation Formats
Hagemann, B G.
Triaxiality and Wobbling[PACS numbers: 27.70.+q, 23.20.-g, 21.10.Re].
Poland: N. p.,
2005.
Web.
Hagemann, B G.
Triaxiality and Wobbling[PACS numbers: 27.70.+q, 23.20.-g, 21.10.Re].
Poland.
Hagemann, B G.
2005.
"Triaxiality and Wobbling[PACS numbers: 27.70.+q, 23.20.-g, 21.10.Re]."
Poland.
@misc{etde_20616991,
title = {Triaxiality and Wobbling[PACS numbers: 27.70.+q, 23.20.-g, 21.10.Re]}
author = {Hagemann, B G}
abstractNote = {The wobbling mode of the collective angular momentum expressed as a phonon excitation with a phonon quantum number, n{sub w}, and wobbling frequency, {Dirac_h}{omega}{sub w}, is unique to the rotational motion of a triaxial nucleus. The presence of quasiparticle alignment introduces characteristic trends in the electromagnetic decay properties for transitions between bands with different wobbling quantum number. Evidence for the wobbling mode, and thereby triaxiality, has been obtained in several even-N Lu isotopes, {sup 163}Lu being the best studied case with the strongest population of the wobbling excitations. As an important support for the wobbling interpretation, recent lifetime measurements in {sup 163}Lu have shown that the quadrupole moments of the bands with n{sub w} = 0 and n{sub w} = 1 are very similar. Triaxial strongly deformed shapes are expected also for neighbouring Hf nuclei, but efforts to identify wobbling in the Hf isotopes where many bands are established, resembling those found in the Lu isotopes, has so far failed. To date the even-N Lu isotopes, {sup 161,163,165,167}Lu, are the only nuclei in which wobbling excitations are identified.(author)}
journal = []
issue = {4}
volume = {B36}
journal type = {AC}
place = {Poland}
year = {2005}
month = {Apr}
}
title = {Triaxiality and Wobbling[PACS numbers: 27.70.+q, 23.20.-g, 21.10.Re]}
author = {Hagemann, B G}
abstractNote = {The wobbling mode of the collective angular momentum expressed as a phonon excitation with a phonon quantum number, n{sub w}, and wobbling frequency, {Dirac_h}{omega}{sub w}, is unique to the rotational motion of a triaxial nucleus. The presence of quasiparticle alignment introduces characteristic trends in the electromagnetic decay properties for transitions between bands with different wobbling quantum number. Evidence for the wobbling mode, and thereby triaxiality, has been obtained in several even-N Lu isotopes, {sup 163}Lu being the best studied case with the strongest population of the wobbling excitations. As an important support for the wobbling interpretation, recent lifetime measurements in {sup 163}Lu have shown that the quadrupole moments of the bands with n{sub w} = 0 and n{sub w} = 1 are very similar. Triaxial strongly deformed shapes are expected also for neighbouring Hf nuclei, but efforts to identify wobbling in the Hf isotopes where many bands are established, resembling those found in the Lu isotopes, has so far failed. To date the even-N Lu isotopes, {sup 161,163,165,167}Lu, are the only nuclei in which wobbling excitations are identified.(author)}
journal = []
issue = {4}
volume = {B36}
journal type = {AC}
place = {Poland}
year = {2005}
month = {Apr}
}