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Phys. Rev. C 65, 024303 (2002) [15 pages]

Rotational structures in 129Nd and signature splitting systematics of the νh11/2 bands in A∼130 nuclei

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O. Zeidan, D. J. Hartley, L. L. Riedinger, M. Danchev*, W. Reviol†, W. D. Weintraub‡, and Jing-ye Zhang
Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996

A. Galindo-Uribarri, C. J. Gross, S. D. Paul§, C. Baktash, M. Lipoglavsek**, D. C. Radford, and C. H. Yu
Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831

D. G. Sarantites and M. Devlin††
Chemistry Department, Washington University, St. Louis, Missouri 63130

M. P. Carpenter, R. V. F. Janssens, and D. Seweryniak
Physics Division, Argonne National Laboratory, Argonne, Illinois 60439

E. Padilla
Instituto de Ciencias Nucleares, UNAM, 04510 Mexico, D.F., Mexico

Received 2 July 2001; published 9 January 2002

High-spin states in 129Nd were populated in the reaction 92Mo(40Ca,2pn) with beam energies of 170 and 184 MeV in two separate experiments. Over 140 new transitions were placed in a level scheme that consists of four rotational structures, three of which have been observed for the first time. The bands were assigned configurations based on their B(M1)/B(E2) ratios (for the strongly coupled bands), aligned angular momentum, observed band crossings, and signature splitting. Evidence for of the observation of the deformation driving νi13/2[660]1/2 orbital is presented. Signature splitting trends in the νh11/2 bands of A∼130 nuclei are investigated within the framework of the cranked shell model. Comparisons are made with observations in the πh11/2 bands near A∼160.

© 2002 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevC.65.024303
DOI:
10.1103/PhysRevC.65.024303
PACS:
21.10.Re, 23.20.Lv, 27.60.+j

*Permanent address: Faculty of Physics, St. Kliment Ohridsky University of Sofia, BG-1164, Sofia, Bulgaria.

†Present address: Chemistry Department, Washington University, St. Louis, MO 63130.

‡Present address: Department of Physics, Florida State University, Tallahassee, FL 32306.

§Present address: Department of Nuclear and Atomic Physics, Tata Institute of Fundamental Research, Mumbai 400 005, India.

**Present address: J. Stefan Institute, Ljubljana, Slovenia.

††Present address: Los Alamos National Laboratory, Los Alamos, NM 87545.

 
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