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New insights into the collective band structures of nuclei with A = 100–112.
- Source :
- AIP Conference Proceedings; 10/15/2009, Vol. 1175 Issue 1, p166-173, 8p
- Publication Year :
- 2009
-
Abstract
- With our high statistics γ-γ-γ data set taken with Gammasphere, we have identified a variety of new phenomena in A = 100–112 nuclei. The one- and two- phonon γ bands in <superscript>104,106</superscript>Mo have been extended and similar bands identified in <superscript>108</superscript>Mo and for the first time in both an odd N nucleus, <superscript>105</superscript>Mo and an odd Z nucleus, <superscript>103</superscript>Nb. The one- and two- phonon γ band energy levels in <superscript>104,105,106,108</superscript>Mo are remarkably similar with a trend toward lower energy as N increases. In <superscript>108,110,112</superscript>Ru the one phonon γ bands show a completely different behavior from <superscript>104</superscript>–<superscript>108</superscript>Mo with very large odd-even spin level energy staggering in <superscript>112</superscript>Ru. Our data indicate a maximum triaxiality around <superscript>112</superscript>Ru. In <superscript>100</superscript>Nb which lies between N = 58 and 60 where a sudden shift from spherical to superdeformed structures occurs in Sr and Zr nuclei, we have discovered a K<superscript>π</superscript> = 1<superscript>+</superscript> deformed ground state band. In <superscript>108</superscript>Tc, we found the first pseudospin partner bands with nearly degenerate energies in this mass region. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 0094243X
- Volume :
- 1175
- Issue :
- 1
- Database :
- Complementary Index
- Journal :
- AIP Conference Proceedings
- Publication Type :
- Conference
- Accession number :
- 45086807
- Full Text :
- https://doi.org/10.1063/1.3258219