EPJ

2021 Impact factor 3.131
EPJ A - Hadrons and Nuclei
Hadrons and Nuclei
Eur. Phys. J A 2, 123-127

Quadrupole moment of superdeformed bands in 151Tb

Ch. Finck1 - O. Stézowski1 - F.A. Beck1 - D.E. Appelbe4 - T. Byrski1 - S. Courtin1 - D.M. Cullen4 - D. Curien1 - G. de France1 - G. Duchêne1 - S. Ertürk4 - B.J.P. Gall1 - U. Garg3 - B. Haas1 - N. Khadiri1 - B. Kharraja3,5 - N. Kintz1 - A. Nourreddine1,5 - D. Prévost1 - C. Rigollet6,1 - H. Savajols1 - P.J. Twin4 - J.P. Vivien1 - K. Zuber2,1

1 Institut de Recherches Subatomiques, IN2P3-CNRS, F-67037 Strasbourg Cedex 2, France
2 Institute of Nuclear Physics, PL31-42 Krakow, Poland
3 University of Notre Dame, Notre Dame, IN 46556, USA
4 Oliver Lodge Laboratory, University of Liverpool, Liverpool L69 7ZE, United Kingdom
5 Departement of physics, University Chouaïb Doukkali, B.P. 20 El Jadida, Morocco
6 National Accelerator Center, PO BOX 72 Faure 7131, South Africa

Received: 25 November 1997 / Revised version: 26 February 1998 Communicated by B. Herskind

Abstract
The quadrupole moments of the first two superdeformed (SD) bands in the nucleus 151Tb have been measured with the Doppler Shift Attenuation Method (DSAM) using the EUROGAM $\gamma$-ray spectrometer. The first excited band (B2) is identical to the yrast SD band of 152Dy in terms of dynamical moments of inertia and $\gamma$-ray energies. The measured relative quadrupole moments of the yrast band (B1) with respect to the band B2 are nicely reproduced by self-consitent Hartree-Fock calculations. The variation of the Q0 value at the bottom of the yrast band suggests a large admixture between wave functions in the normal and the SD wells. This could explain the rather high deexcitation spin for the yrast band.

PACS
21.10.Ky Electromagnetic moments - 21.10.Tg Lifetimes - 21.10.Re Collective levels

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