Evidence for octupole correlations in 124Ba, 125Ba
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en
Article de revue
Este ítem está publicado en
Physical Review C. 2005, vol. 72, p. 064315
American Physical Society
Resumen en inglés
The gamma decay of the nuclei 124,125Ba has been investigated by means of the EUROBALL spectrometer, coupled to the DIAMANT array of charged-particle detectors, using the reaction 64Ni + 64Ni at E_{beam}=255 and 261 MeV. ...Leer más >
The gamma decay of the nuclei 124,125Ba has been investigated by means of the EUROBALL spectrometer, coupled to the DIAMANT array of charged-particle detectors, using the reaction 64Ni + 64Ni at E_{beam}=255 and 261 MeV. In the nucleus 125Ba 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 Jpi=3- level in the nucleus $^{124}$Ba 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.< Leer menos
Palabras clave en inglés
nuclear energy level transitions
nuclear transition probabilities
nuclei with mass number 90 to 149
nuclear energy levels
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