corner
corner
APS » Journals » Phys. Rev. Lett. » Volume 91 » Issue 16
< Previous Article | Next Article >

Phys. Rev. Lett. 91, 162501 (2003) [4 pages]

Evidence for a New Type of Shears Mechanism in 106Cd

Download: PDF (222 kB) Buy this article Export: BibTeX or EndNote (RIS)

A. J. Simons, R. Wadsworth, and D. G. Jenkins
Department of Physics, University of York, Heslington, York Y010 5DD, United Kingdom

R. M. Clark, M. Cromaz, M. A. Deleplanque, R. M. Diamond, P. Fallon, G. J. Lane*, I. Y. Lee, A. O. Macchiavelli, F. S. Stephens, C. E. Svensson†, K. Vetter‡, and D. Ward
Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA

S. Frauendorf
Department of Physics, University of Notre Dame, Notre Dame, Indiana 46556, USA, and FZ Rossendorf, Postfach 510119, D-01314, Dresden, Germany

Received 26 June 2003; published 14 October 2003

Lifetimes of states in the lowest lying positive parity band in 106Cd have been measured using the Doppler shift attenuation method. The deduced B(E2) transition rates show a marked decrease with increasing spin. Cranking and semiclassical model calculations suggest that the structure has the character of a shears-type band resulting from the coupling of g9/2 proton holes to aligned pairs of h11/2 and g7/2 neutron particles. This is the first clear evidence for the phenomenon of “antimagnetic” rotation in nuclei.

© 2003 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.91.162501
DOI:
10.1103/PhysRevLett.91.162501
PACS:
21.10.Tg, 23.20.Lv, 25.70.Gh, 27.60.+j

*Present address: Department of Nuclear Physics, Australian National University, Canberra, ACT 2000, Australia.

†Present address: Department of Physics, University of Guelph, Guelph, Ontario, Canada N1G 2W1.

‡Present address: Glenn T. Seaborg Institute, Lawrence Livermore National Laboratory, Livermore, CA 94550, USA.

 
< Previous Article | Next Article >