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 Physical Review C 72 (2005) 064315
 Evidence for octupole correlations in 124Ba, 125Ba
 (2005)
 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.
 Thème(s) : Physique/Physique Nucléaire Expérimentale
 Mot(s)-clé(s) : nuclear energy level transitions – nuclear transition probabilities – nuclei with mass number 90 to 149 – nuclear energy levels
 in2p3-00025456, version 1 http://hal.in2p3.fr/in2p3-00025456 oai:hal.in2p3.fr:in2p3-00025456 Contributeur : Yvette Heyd <> Soumis le : Lundi 23 Janvier 2006, 14:38:47 Dernière modification le : Mercredi 17 Juin 2009, 10:41:27