Fast Rotation of the N=Z Nucleus 36Ar
Abstract
A highly-deformed rotational band has been identified in the N=Z nucleus 36Ar. At high spin the band is observed to its presumed termination at I=16+, while at low spin it has been firmly linked to previously known states in 36Ar. Spins, parities, and absolute excitation energies have thus been determined throughout the band. Lifetime measurements establish a large low-spin quadrupole deformation (beta_2=0.46+-0.03) and indicate a decreasing collectivity as the band termination is approached. With effectively complete spectroscopic information and a valence space large enough for significant collectivity to develop, yet small enough to be meaningfully approached from the shell model perspective, this rotational band in 36Ar provides many exciting opportunities to test and compare complementary models of collective motion in nuclei.
Keywords
Cite
@article{arxiv.nucl-th/0104012,
title = {Fast Rotation of the N=Z Nucleus 36Ar},
author = {C. E. Svensson and A. O. Macchiavelli and A. Juodagalvis and A. Poves and I. Ragnarsson and S. Aberg and D. E. Appelbe and R. A. E. Austin and C. Baktash and G. C. Ball and M. P. Carpenter and E. Caurier and R. M. Clark and M. Cromaz and M. A. Deleplanque and R. M. Diamond and P. Fallon and M. Furlotti and A. Galindo-Uribarri and R. V. F. Janssens and G. J. Lane and I. Y. Lee and M. Lipoglavsek and F. Nowacki and S. D. Paul and D. C. Radford and D. G. Sarantites and D. Seweryniak and F. S. Stephens and V. Tomov and K. Vetter and D. Ward and C. H. Yu},
journal= {arXiv preprint arXiv:nucl-th/0104012},
year = {2011}
}
Comments
Invited talk at "High Spin Physics 2001", see http://www.fuw.edu.pl/~hs2001/, to be published in Acta Physica Polonica B