Octupole signatures in 124,125Ba

MASON, P.; BENZONI, G.; BRACCO, A.; CAMERA, F.; MILLION, B.; WIELAND, O.; LEONI, S.; SINGH, A.K.; AL-KHATIB, A.; HÜBEL, H.; BRINGEL, P.; NEUSSER, A.; SCHÖNWASSER, G.; B. HAGEMANN, G.; HANSEN, C.R.; HERSKIND, B.; SLETTEN, G.; ALGORA, A.; DOMBRÁDI, Zs.; GÁL, J.; KALINKA, G.; MOLNÁR, J.; NYAKÓ, B.M.; SOHLER, D.; TIMÁR, J.; ZOLNAI, L.; KMIECIK, M.; MAJ, A.; STYCZEN, J.; ZUBER, K.; AZAIEZ, F.; HAUSCHILD, K.; KORICHI, A.; LOPEZ-MARTENS, A.; ROCCAZ, J.; SIEM, S.; HANNACHI, F.; SCHEURER, J.N.; BEDNARCZYK, P.; BYRSKI, T.; CURIEN, D.; DORVAUX, O.; DUCHÊNE, G.; GALL, B.J.P.; KHALFALLAH, F.; PIQUERAS, I.; ROBIN, J.; JUHÁSZ, K.; PATEL, S.B.; EVANS, A.O.; RAINOVSKI, G.; PETRACHE, C.M.; PETRACHE, D.; LA RANA, G.; MORO, R.; DE ANGELIS, G.; FALLON, P.; LEE, I.-Y.; LISLE, J.-.; CEDERWALL, B.; LAGERGEN, K.; LIEDER, R.M.; PODSVIROVA, E.; GAST, W.; JÄGER, H.; REDON, N.; GÖRGEN, A.

doi:10.1088/0954-3899/31/10/063

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Journal of Physics G: Nuclear and Particle Physics, Journal of Physics G, Journal of Physics G, 2005-01-05, Guildford. 2005, vol. 31, p. S1729-S1733

IOP Publishing

Resumen en inglés

The gamma decay of the nuclei 124,125Ba has been investigated with the EUROBALL array, using the reaction 64Ni+64 Ni at E_{beam} = 255 and 261 MeV. Six new E1 transitions have been found in the nucleus 125Ba, suggesting a significant role of octupole correlations in the origin of its parity doublets. The pi = 3-level of the nucleus 124Ba has been identified for the first time. Its excitation energy is in very good agreement with a prediction based on a microscopic model including octupole interactions.< Leer menos

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