Phys. Rev. Lett. 86, 971–974 (2001)

Chiral Doublet Structures in Odd-Odd N = 75 Isotones: Chiral Vibrations

Abstract

References

Citing Articles (108)

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K. Starosta^1,*, T. Koike¹, C. J. Chiara¹, D. B. Fossan¹, D. R. LaFosse¹, A. A. Hecht², C. W. Beausang², M. A. Caprio², J. R. Cooper², R. Krücken², J. R. Novak², N. V. Zamfir^2,†, K. E. Zyromski², D. J. Hartley³, D. L. Balabanski^3,‡, Jing-ye Zhang³, S. Frauendorf⁴, and V. I. Dimitrov^4,§
¹Department of Physics and Astronomy, SUNY at Stony Brook, Stony Brook, New York 11794
²Wright Nuclear Structure Laboratory, Yale University, New Haven, Connecticut 06520
³Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996
⁴Department of Physics, University of Notre Dame, Notre Dame, Indiana 46556 and Institute for Nuclear and Hadronic Physics, Research Center Rossendorf, 01314 Dresden, Germany

Received 24 July 2000; published in the issue dated 5 February 2001

See accompanying Physics Focus

New sideband partners of the yrast bands built on the πh_11/2νh_11/2 configuration were identified in ₅₅Cs, ₅₇La, and ₆₁Pm N = 75 isotones of ¹³⁴Pr. These bands form with ¹³⁴Pr unique doublet-band systematics suggesting a common basis. Aplanar solutions of 3D tilted axis cranking calculations for triaxial shapes define left- and right-handed chiral systems out of the three angular momenta provided by the valence particles and the core rotation, which leads to spontaneous chiral symmetry breaking and the doublet bands. Small energy differences between the doublet bands suggest collective chiral vibrations.

URL:

http://link.aps.org/doi/10.1103/PhysRevLett.86.971

DOI:

10.1103/PhysRevLett.86.971

PACS:

21.10.Re, 23.20.Lv, 23.90.+w, 27.60.+j

^*On leave from Institute of Experimental Physics, Warsaw University, Hoża 69, 00-681 Warsaw, Poland.

^†Also at Clark University, Worchester, MA 10610.

^‡On leave from Faculty of Physics, Sofia University, BG-1164 Sofia, Bulgaria.

^§

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Phys. Rev. Lett. 86, 971–974 (2001)

Chiral Doublet Structures in Odd-Odd N = 75 Isotones: Chiral Vibrations