Multiphonon Vibrations at High Angular Momentum in $^{182}\mathrm{O}\mathrm{s}$

Multiphonon Vibrations at High Angular Momentum in ${}^{182}{O s}$

L. K. Pattison, D. M. Cullen, J. F. Smith, A. M. Fletcher, P. M. Walker, H. M. El-Masri, Zs. Podolyák, R. J. Wood, C. Scholey, C. Wheldon, G. Mukherjee, D. Balabanski, M. Djongolov, Th. Dalsgaard, H. Thisgaard, G. Sletten, F. Kondev, D. Jenkins, G. J. Lane, I.-Y. Lee, A. O. Macchiavelli, S. Frauendorf, and D. Almehed

Phys. Rev. Lett. 91, 182501 – Published 30 October 2003

Abstract

Evidence is presented for multiphonon excitations based on a high-spin ( $25 ℏ$ ) intrinsic state in the deformed nucleus ${}^{182}{O s}$ . Angular momentum generation by this mode competes with collective rotation. The experimental data are compared with tilted-axis cranking calculations, supporting the vibrational interpretation. However, the lower experimental energies provide evidence that more complex interactions of states are playing a role.

Received 25 July 2002

DOI:https://doi.org/10.1103/PhysRevLett.91.182501

Authors & Affiliations

L. K. Pattison¹, D. M. Cullen¹, J. F. Smith¹, A. M. Fletcher¹, P. M. Walker², H. M. El-Masri², Zs. Podolyák², R. J. Wood², C. Scholey³, C. Wheldon³, G. Mukherjee⁴, D. Balabanski⁵, M. Djongolov⁶, Th. Dalsgaard⁷, H. Thisgaard⁷, G. Sletten⁷, F. Kondev⁸, D. Jenkins⁸, G. J. Lane⁹, I.-Y. Lee⁹, A. O. Macchiavelli⁹, S. Frauendorf¹⁰, and D. Almehed¹¹

¹Schuster Laboratory, University of Manchester, Manchester M13 9PL, United Kingdom
²Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
³Oliver Lodge Laboratory, University of Liverpool, Liverpool L69 7ZE, United Kingdom
⁴Department of Physics, University of Massachusetts, Lowell, Massachusetts 01854, USA
⁵Faculty of Physics, University of Sofia, BG-1164 Sofia, Bulgaria
⁶Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996, USA
⁷Niels Bohr Institute, Blegdamsvej 17, DK-2100, Copenhagen, Denmark
⁸Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
⁹Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
¹⁰Department of Physics, University of Notre Dame, Notre Dame, Indiana 46556, USA
¹¹Department of Physics, UMIST, P.O. Box 88, Manchester M60 1QD, United Kingdom

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Vol. 91, Iss. 18 — 31 October 2003

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Physical Review Letters

Multiphonon Vibrations at High Angular Momentum in Os182

Phys. Rev. Lett. 91, 182501 – Published 30 October 2003

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Multiphonon Vibrations at High Angular Momentum in ${}^{182}{O s}$