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Evidence for octupo...
Abstract
Ämnesord
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- The gamma decay of the nuclei Ba-124,Ba-125 has been investigated by means of the EUROBALL spectrometer, coupled to the DIAMANT array of charged-particle detectors, using the reaction Ni-64 + Ni-64 at E-beam=255 and 261 MeV. In the nucleus Ba-125 six new E1 transitions have been found to link opposite-parity bands currently interpreted as nu d(5/2)(+g(7/2)),nu h(11/2) structures. The previously unknown J(pi) = 3(-) level in the nucleus Ba-124 has also been identified; its excitation energy is accurately reproduced by a microscopic calculation including octupole correlations. Both issues are bolstered by sizable B(E1)/B(E2) ratios.
Nyckelord
- gamma-ray spectroscopy
- high-spin states
- nuclei
- ba-126
- spectrometer
- euroball
- detector
- clover
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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