Yrast and non-yrast 2+ states of 134Ce and 136Nd populated in relativistic Coulomb excitation

T. R. Saito, N. Saito, K. Starosta, J. Beller, N. Pietralla, H. J. Wollersheim, D. L. Balabanski, A. Banu, R. A. Bark, T. Beck, F. Becker, P. Bednarczyk, K. H. Behr, G. Benzoni, P. G. Bizzeti, C. Boiano, A. Bracco, S. Brambilla, A. Brünle, A. BürgerL. Caceres, F. Camera, F. C.L. Crespi, P. Doornenbal, A. B. Garnsworthy, H. Geissel, J. Gerl, M. Górska, J. Grebosz, G. Hagemann, J. Jolie, M. Kavatsyuk, O. Kavatsyuk, T. Koike, I. Kojouharov, N. Kurz, J. Leske, G. Lo Bianco, A. Maj, S. Mallion, S. Mandal, M. Maliage, T. Otsuka, C. M. Petrache, Zs Podolyak, W. Prokopowicz, G. Rainovski, P. Reiter, A. Richard, H. Schaffner, S. Schielke, G. Sletten, N. J. Thompson, D. Tonev, J. Walker, N. Warr, O. Wieland, Q. Zhong

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Abstract

The first 2+ states in 134Ce and 136Nd and the second 2+ state in 136Nd were populated by Coulomb excitation at relativistic energies, and γ-rays were measured using the RISING setup at GSI. For 134Ce an indication of the excitation to the second 2+ state was observed. This experiment performed for the first time Coulomb excitation to second 2+ states with rare isotope beams at relativistic energies. For 136Nd the B (E 2 ; 21 + → 0+), B (E 2 ; 22 + → 0+), and B (E 2 ; 22 + → 21 +) values relative to the previously known B (E 2 ; 21 + → 0+) value for 134Ce are determined as 81(10), 11(3) and 180(92) W.u., respectively. The results are discussed in the framework of geometrical models that indicate pronounced γ-softness in these nuclei.

Original languageEnglish
Pages (from-to)19-23
Number of pages5
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume669
Issue number1
DOIs
Publication statusPublished - 2008 Oct 30

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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    Saito, T. R., Saito, N., Starosta, K., Beller, J., Pietralla, N., Wollersheim, H. J., Balabanski, D. L., Banu, A., Bark, R. A., Beck, T., Becker, F., Bednarczyk, P., Behr, K. H., Benzoni, G., Bizzeti, P. G., Boiano, C., Bracco, A., Brambilla, S., Brünle, A., ... Zhong, Q. (2008). Yrast and non-yrast 2+ states of 134Ce and 136Nd populated in relativistic Coulomb excitation. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 669(1), 19-23. https://doi.org/10.1016/j.physletb.2008.09.027