1. Octupole signatures in 124,125Ba
- Author
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Mason, P PM, Benzoni, G GB, Bracco, A AB, Camera, F FC, Million, B BM, Wieland, O OW, Leoni, S SL, Singh, A AKS, Al-Khatib, A AA, Hübel, H HH, Bringel, P PB, Bürger, A AB, Neusser, A AN, Schönwasser, G GS, Hagemann, G GBH, Hansen, C CRH, Herskind, B BH, Sletten, G GS, Algora, A AA, Dombrádi, Zs ZD, Gál, J JG, Kalinka, G GK, Molnár, J JM, Nyakó, B BMN, Sohler, D DS, Timár, J JT, Zolnai, L LZ, Kmiecik, M MK, Maj, A AM, Styczen, J JS, Zuber, K KZ, Azaiez, F FA, Hauschild, K KH, Korichi, A AK, Lopez-Martens, A AL, Roccaz, J JR, Siem, S SS, Hannachi, F FH, Scheurer, J JNS, Bednarczyk, P PB, Byrski, Th TB, Curien, D DC, Dorvaux, O OD, Duchène, G GD, Gall, B BG, Khalfallah, F FK, Piqueras, I IP, Robin, J JR, Juhász, K KJ, Patel, S SBP, Evans, A AOE, Rainovski, G GR, Petrache, C CMP, Petrache, D DP, Rana, G GLR, Moro, R RM, Angelis, G GDA, Fallon, P PF, Lee, I-Y IL, Lisle, J JCL, Cederwall, B BC, Lagergen, K KL, Lieder, R RML, Podsvirova, E EP, Gast, W WG, Jäger, H HJ, Redon, N NR, and Görgen, A AG
- Abstract
The γ decay of the nuclei 124,125Ba has been investigated with the EUROBALL array, using the reaction 64Ni+64Ni at Ebeam = 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 Jπ = 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.
- Published
- 2005