2018 Impact factor 2.481
Hadrons and Nuclei
Eur. Phys. J. A 2, 249-251

Short note

Quadrupole moment measurement of the highly deformed pg9/2 $\otimes$ nh11/2 band in 130Pr

F.G. Kondev1 - M.A. Riley1 - T.B. Brown1 - R.M. Clark2 - M. Devlin3 - P. Fallon2 - D.J. Hartley1 - I.M. Hibbert4 - D.T. Joss5 - D.R. LaFosse3 - R.W. Laird1 - F. Lerma3 - M. Lively1 - P.J. Nolan5 - N.J. O'Brien4 - E.S. Paul5 - J. Pfohl1 - D.G. Sarantites3 - R.K. Sheline1 - S.L. Shepherd5 - J. Simpson6 - R. Wadsworth4

1 Department of Physics, Florida State University, Tallahassee, FL 32306, USA
2 Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
3 Department of Chemistry, Washington University, St. Louis, MO 63130, USA
4 Department of Physics, University of York, Heslington, York Y01 5DD, UK
5 Oliver Lodge Laboratory, University of Liverpool, Liverpool L69 7ZE, UK
6 CCLRC, Daresbury Laboratory, Daresbury, Warrington WA4 4AD, UK

Received: 23 April 1998 Communicated by B. Herskind

Abstract
The quadrupole moment for the pg9/2$\otimes$ nh11/2 band in the 130Pr nucleus has been measured using the Doppler-shift attenuation method. A centroid shift analysis was carried out and a value of Q0=6.1$\pm$0.4 eb, corresponding to an axial prolate deformation of $\beta_{2}$=0.35(3), has been determined. This is the first direct experimental confirmation of the deformation-driving character of the pg9/2 orbital in an odd-odd nucleus in the A$\sim$135 superdeformed region.

PACS
21.10.Tg Lifetimes - 21.10.Re Collective levels - 23.20.Lv Gamma transitions and level energies - 27.60.+j $90 \le A \le 149$

Author for correspondance: kondev@nucott.physics.fsu.edu


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