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Wobbling phonon excitations in strongly deformed triaxial nuclei

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Abstract.

The wobbling mode is uniquely related to triaxiality and introduces a series of bands with increasing wobbling phonon number, \(n_{\rm w}\). The pattern of \(\gamma\)-transitions between the wobbling excitations will be influenced by the presence of an aligned particle. Evidence for the wobbling mode was obtained recently, and even a two-phonon wobbling excitation has now been identified in 163 Lu. The similarity of the data in 163 Lu to new strongly deformed triaxial bands and connecting transitions in the neighbouring nuclei, 165 Lu and 167 Lu, establishes wobbling as a more general phenomenon in this region. The higher phonon wobbling excitations show some anharmonicity, but the characteristic large \(\Delta n_{\rm w} = 1\) E2 strength is observed. The wobbling interpretation is based on the comparison of electromagnetic decay strength between bands to particle-rotor calculations in which an i 13/2 proton is coupled to a triaxial core.

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References

  1. S. Åberg, Nucl. Phys. A 520, 35c (1990) and references therein.

    Google Scholar 

  2. I. Ragnarsson, Phys. Rev. Lett. 62, 2084 (1989).

    Article  Google Scholar 

  3. T. Bengtsson, Nucl. Phys. A 496, 56 (1989); 512, 124 (1990).

    Article  Google Scholar 

  4. R. Bengtsson, www.matfys.lth.se/~ragnar/ultimate. html.

  5. H. Schnack-Petersen, R. Bengtsson, R.A. Bark, P. Bosetti, A. Brockstedt, H. Carlsson, L.P. Ekström, G.B. Hagemann, B. Herskind, F. Ingebretsen, H.J. Jensen, S. Leoni, A. Nordlund, H. Ryde, P.O. Tjøm, C.X. Yang, Nucl. Phys. A 594, 175 (1995).

    Article  Google Scholar 

  6. R. Bengtsson, Hans Ryde, Magic gaps and intruder levels in triaxially superdeformed nuclei, to be published.

  7. W. Schmitz, C.X. Yang, H. Hübel, A.P. Byrne, R. Müsseler, N. Singh, K.H. Maier, A. Kuhnert, R. Wyss, Nucl. Phys. A 539, 112 (1992).

    Article  Google Scholar 

  8. W. Schmitz, H. Hübel, C.X. Yang, G. Baldsiefen, U. Birkental, G. Fröhlingsdorf, D. Mehta, R. Müsseler, M. Neffgen, P. Willsau, J. Gascon, G.B. Hagemann, A. Maj, D. Müller, J. Nyberg, M. Piiparinen, A. Virtanen, R. Wyss, Phys. Lett. B 303, 230 (1993).

    Article  Google Scholar 

  9. H. Amro, P.G. Varmette. W.C. Ma, B. Herskind, G.B. Hagemann, R.V.F. Janssens, M. Bergström, A. Bracco, M. Carpenter, J. Domscheit, S. Frattini, D.J. Hartley, H. Hübel, T.L. Khoo, F. Kondev, T. Lauritsen, C.J. Lister, B. Million, S.W. Ødegård, R.B. Piercey, L.L. Riedinger, K.A. Schmidt, S. Siem, L. Wiedenhöver, J. N. Wilson, J.A. Winger, Phys. Lett. B 506, 39 (2001).

    Article  Google Scholar 

  10. S.W. Ødegård, G.B. Hagemann, D.R. Jensen, M. Bergström, B. Herskind, G. Sletten, S. Törmänen, J.N. Wilson, P.O. Tjøm, I. Hamamoto, K. Spohr, H. Hübel, A. Görgen, G. Schönwasser, A. Bracco, S. Leoni, A. Maj, C.M. Petrache, P. Bednarczyk, D. Curien, Phys. Rev. Lett. 86, 5866 (2001).

    Article  Google Scholar 

  11. D.R. Jensen, G.B. Hagemann, I. Hamamoto, S.W. Ødegård, M. Bergström, B. Herskind, G. Sletten, S. Törmänen, J.N. Wilson, P.O. Tjøm, K. Spohr, H. Hübel, A. Görgen, G. Schönwasser, A. Bracco, S. Leoni, A. Maj, C.M. Petrache, P. Bednarczyk, D. Curien. Nucl. Phys. A 703, 3 (2002).

    Google Scholar 

  12. D.R. Jensen, G.B. Hagemann, I. Hamamoto, S.W. Ødegård, B. Herskind, G. Sletten, J.N. Wilson, K. Spohr, H. Hübel, P. Bringel, A. Neußer, G. Schönwasser, A.K. Singh, W.C. Ma, H. Amro, A. Bracco, S. Leoni, G. Benzoni, A. Maj, C.M. Petrache, G. Lo Bianco, P. Bednarczyk, D. Curien, Phys. Rev. Lett. 89, 142503 (2002).

    Article  Google Scholar 

  13. A. Bohr, B.R. Mottelson, Nuclear Structure, Vol. II (Benjamin, Reading, MA, 1975).

  14. P. Bringel, H. Hübel, H. Amro, M. Axiotis, D. Bazzacco, S. Bhattacharya, R. Bhownik, J. Domscheit, G.B. Hagemann, D.R. Jensen, Th. Kröll, S. Lunardi, D.R. Napoli, A. Neußer, S.C. Pancholi, C.M. Petrache, G. Schönwaßer, A.K. Singh, C. Ur, Eur. Phys. J. A 16, 155 (2003).

    Article  Google Scholar 

  15. J. Domscheit, B. Angenvoort, S. Törmänen, R.A. Bark, M. Bergström, A. Bracco, R. Chapman, D.M. Cullen, C. Fahlander, S. Frattini, A. Görgen, G.B. Hagemann, A. Harsmann, B. Herskind, H. Hübel, H.J. Jensen, S.L. King, S. Lenzi, D.R. Napoli, S.W. Ødegård, C. Petrache, H. Ryde, U.J. van Severen, G. Sletten, P.O. Tjøm, C. Ur, Nucl. Phys. A 660, 381 (1999).

    Article  Google Scholar 

  16. S. Törmänen, S.W. Ødegård, G.B. Hagemann, A. Harsmann, M. Bergström, R.A. Bark, B. Herskind, G. Sletten, P.O. Tjøm, A. Görgen, H. Hübel, B. Aengenvoort, U.J. van Severen, H. Ryde, C. Fahlander, D. Napoli, S. Lenzi, C. Petrache, C. Ur, H.J. Jensen, A. Bracco, S. Frattini, R. Chapman, D.M. Cullen, S.L. King, Phys. Lett. B 454, 8 (1999).

    Article  Google Scholar 

  17. G. Schönwaßer, H. Hübel, G.B. Hagemann, P. Bednarczyk, G. Benzoni, G. Lo Bianco, A. Bracco, P. Bringel, R. Chapman, D. Curien, J. Domscheit, B. Herskind, D.R. Jensen, S. Leoni, W.C. Ma, A. Maj, A. Neußer, S.W. Ødegård, C. Petrache, D. Roßbach, H. Ryde, K.H. Spohr, A.K. Singh, Phys. Lett. B 552, 9 (2003).

    Article  Google Scholar 

  18. C.X. Yang, X.G. Wu, H. Zheng, X.A. Liu, Y.S. Chen, C.W. Shen, Y.J. Ma, J.B. Lu, S. Wen, G.S. Li, S.G. Li, G.J. Yuan, P.K. Weng, Y.Z. Liu, Eur. Phys. J. A 1, 237 (1998).

    Article  Google Scholar 

  19. H. Amro, W.C. Ma, G.B. Hagemann, B. Herskind, J.A. Winger, Y. Li, J. Thompson, G. Sletten, J.N. Wilson, D.R. Jensen, P. Fallon, D. Ward, R.M. Diamond, A. Görgen, A. Machiavelli, H. Hübel, J. Domscheit, I. Wiedenhöwer, Phys. Lett. B 553, 197 (2003).

    Article  Google Scholar 

  20. Y. Li, W.C. Ma, H. Amro, D.G. Roux, G.B. Hagemann et al. , to be published.

  21. D. Ringkjøbing Jensen, J. Domscheit, G.B. Hagemann, M. Bergström, B. Herskind, B.S. Nielsen, G. Sletten, P.G. Varmette, S. Törmänen, H. Hübel, W.C. Ma, A. Bracco, F. Camera, F. Demaria, S. Frattini, B. Million, D. Napoli, A. Maj, B.M. Nyako, D.T. Joss, M. Aiche, Eur. Phys. J. A 8, 165 (2000).

    Google Scholar 

  22. A. Neußer, S. Bhattachary, P. Bringel, D. Curien, O. Dorvaux, J. Domscheit, G.B. Hagemann, F. Hannachi, H. Hübel, D.R. Jensen, A. Lopez-Martens, E. Mergel, N. Nenoff, A.K. Singh, Eur. Phys. J. A 15, 439 (2002).

    Google Scholar 

  23. G. Schönwasser, H. Hübel, G.B. Hagemann, J. Domscheit, A. Görgen, B. Herskind, G. Sletten, J.N. Wilson, D.R. Napoli, C. Rossi-Alvarez, D. Bazzacco, R. Bengtsson, H. Ryde, P.O. Tjøm, S.W. Ødegård. Eur. Phys. J. A 13, 291 (2002).

    Google Scholar 

  24. G. Schönwasser, H. Hübel, G.B. Hagemann, H. Amro, R. Clark, M. Cromaz, R.M. Diamond, P. Fallon, B. Herskind, G. Lane, W.C. Ma, A. Machiavelli, S.W. Ødegård, G. Sletten, D. Ward, J.N. Wilson, Eur. Phys. J. A 15, 435 (2002).

    Article  Google Scholar 

  25. I. Hamamoto, Phys. Rev. C 65, 044305 (2002).

    Article  Google Scholar 

  26. M.K. Djongolov, D.J. Hartley, L.L. Riedinger, F.G. Kondev, R.V.F. Janssens, K. Abu Saleem, H. Ahmad, D.L. Balabanski, M.P. Carpenter, P. Chowdhury, D.M. Cullen, M. Danchev, G.D. Dracoulis, H. El-Masri, J. Goon, A. Heinz, R.A. Kaye, T.L. Khoo, T. Lauritsen, C.J. Lister, E.F. Moore, M.A. Riley, D. Seweryniak, J. Shestakova, G. Sletten, P.M. Walker, C. Wheldon, I. Wiedenhöver, O. Zeidan, J.-Y. Zhang, Phys. Lett. B 560, 24 (2003).

    Article  Google Scholar 

  27. D.R. Jensen, G.B. Hagemann, B. Herskind, G. Sletten, J.N. Wilson, S.W. Ødegård, I. Hamamoto, K. Spohr, H. Hübel, P. Bringel, A. Neußer, G. Schönwaßer, A.K. Singh, W.C. Ma, H. Amro, A. Bracco, S. Leoni, G. Benzoni, A. Maj, C.M. Petrache, G. Lo Bianco, P. Bednarczyk, D. Curien, Eur. Phys. J. A 19, 173 (2004). .

    Google Scholar 

  28. M. Matsuzaki, Y.R. Shimizu, K. Matsuyanagi, Phys. Rev. C 65, 041303 (2002); this issue, p. \(\bullet\).

    Article  Google Scholar 

  29. K. Sugawara Tanabe, K. Tanabe, Triaxial Superdeformed bands in 163Lu, in abstract collection for NS2002, p. 86, not presented.

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Authors and Affiliations

  1. The Niels Bohr Institute, University of Copenhagen, Blegdamsvej 17, DK-2100, Copenhagen Ø, Denmark

    G. B. Hagemann

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  1. G. B. Hagemann
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Correspondence to G. B. Hagemann.

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Received: 30 October 2002, Published online: 23 March 2004

PACS:

27.70. + q \(150 \leq A \leq 189\) - 23.20.-g Electromagnetic transitions - 21.10.Re Collective levels

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Hagemann, G.B. Wobbling phonon excitations in strongly deformed triaxial nuclei. Eur. Phys. J. A 20, 183–188 (2003). https://doi.org/10.1140/epja/i2002-10349-4

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  • DOI: https://doi.org/10.1140/epja/i2002-10349-4

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