1. Deformed rotational cascades in 152Dy: Further evidence for shape coexistence at high spin
- Author
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Martin Smith, Appelbe, D. E., Twin, P. J., Beausang, C. W., Beck, F. A., Bentley, M. A., Cullen, D. M., Curien, D., Dagnall, P. J., France, G., Duchêne, G., Ertürk, S., Finck, Ch, Haas, B., Hibbert, I. M., Lisle, J. C., Nyakó, B. M., O Leary, C. D., Rigollet, C., Savajols, H., Simpson, J., Stézowski, O., Styczeń, J., Vivien, J. P., Zuber, K., Smith, M.B., Oliver Lodge Laboratory, University of Liverpool, Liverpool L69 7ZE, United Kingdom, Dept. of Electron. Eng. and Physics, University of Paisley, Paisley PA1 2BE, United Kingdom, Department of Physics and Astronomy, Rutgers University, New Brunswick, NJ 08903, United States -- Appelbe, D.E., Oliver Lodge Laboratory, University of Liverpool, Liverpool L69 7ZE, United Kingdom, Department of Physics and Astronomy, McMaster University, Hamilton, Ont. L8S 4M1, Canada -- Twin, P.J., Oliver Lodge Laboratory, University of Liverpool, Liverpool L69 7ZE, United Kingdom -- Beausang, C.W., Oliver Lodge Laboratory, University of Liverpool, Liverpool L69 7ZE, United Kingdom, Wright Nuclear Structure Laboratory, Yale University, 272 Whitney Avenue, New Haven, CT 06520, United States -- Beck, F.A., Institut de Recherches Subatomiques, F-67037 Strasbourg Cedex 2, France -- Bentley, M.A., School of Sciences, Staffordshire University, College Road, Stoke-on-Trent ST4 2DE, United Kingdom -- Cullen, D.M., Oliver Lodge Laboratory, University of Liverpool, Liverpool L69 7ZE, United Kingdom -- Curien, D., Institut de Recherches Subatomiques, F-67037 Strasbourg Cedex 2, France -- Dagnall, P.J., Schuster Laboratory, University of Manchester, Manchester MI3 9PL, United Kingdom -- De France, G., Institut de Recherches Subatomiques, F-67037 Strasbourg Cedex 2, France, Grand Accelerateur Natl. d'Ions L., BP 5027, F-14076 Caen Cedex 5, France -- Duchêne, G., Institut de Recherches Subatomiques, F-67037 Strasbourg Cedex 2, France -- Ertürk, S., Oliver Lodge Laboratory, University of Liverpool, Liverpool L69 7ZE, United Kingdom, Nigde Üniversitesi, Fen-Edebiyat Fakültesi, Fizik Bölümü, Nigde, Turkey -- Finck, Ch., Institut de Recherches Subatomiques, F-67037 Strasbourg Cedex 2, France, Gesell. fur Schwerionenforschung, D-64291 Darmstadt, Germany -- Haas, B., Institut de Recherches Subatomiques, F-67037 Strasbourg Cedex 2, France -- Hibbert, I.M., Oliver Lodge Laboratory, University of Liverpool, Liverpool L69 7ZE, United Kingdom, Department of Physics, University of York, Heslington, York YO1 5DD, United Kingdom -- Lisle, J.C., Schuster Laboratory, University of Manchester, Manchester MI3 9PL, United Kingdom -- Nyakó, B.M., Inst. of Nucl. Res. of the Hung. A., 4001 Debrecen Pf. 51, Hungary -- O'Leary, C.D., Oliver Lodge Laboratory, University of Liverpool, Liverpool L69 7ZE, United Kingdom, School of Sciences, Staffordshire University, College Road, Stoke-on-Trent ST4 2DE, United Kingdom -- Rigollet, C., Institut de Recherches Subatomiques, F-67037 Strasbourg Cedex 2, France, National Accelerator Center, P.O. Box 72, Faure ZA 7131, South Africa -- Savajols, H., Institut de Recherches Subatomiques, F-67037 Strasbourg Cedex 2, France, Grand Accelerateur Natl. d'Ions L., BP 5027, F-14076 Caen Cedex 5, France -- Simpson, J., CLRC Daresbury Laboratory, Daresbury, Warrington WA4 4AD, United Kingdom -- Stézowski, O., Institut de Recherches Subatomiques, F-67037 Strasbourg Cedex 2, France, Inst. de Phys. Nucleaire de Lyon, F-69622 Villeurbanne Cedex, France -- Styczen, J., H. Niewodniczanski Inst. of Nucl. P., PL-31-342 Kraków, Poland -- Vivien, J.P., Institut de Recherches Subatomiques, F-67037 Strasbourg Cedex 2, France -- Zuber, K., Institut de Recherches Subatomiques, F-67037 Strasbourg Cedex 2, France, H. Niewodniczanski Inst. of Nucl. P., PL-31-342 Kraków, Poland, Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), and EUROGAM
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21.10.Re, 21.10.Tg, 23.20.Lv, 27.70.+q ,[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex] - Abstract
8 pages; Two new rotational bands have been observed in the 152Dy nucleus following experiments performed using the EUROGAM gamma -ray spectrometer. Several transitions have been observed that link these new bands into the known single-particle states. Using the Doppler shift attenuation method, the quadrupole moment of the previously-known rotational sequence has been measured. The value of Qband=3.85±0.06 e b confirms the deformed nature of this cascade. The structures of the three bands are discussed in terms of the occupation of both paired and unpaired orbitals, and are found to be in good agreement with theoretical calculations. The observation of two new bands further extends the concept of shape coexistence in the 152Dy nucleus.
- Published
- 2000