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Studies of pear-shaped nuclei using accelerated radioactive beams
- Gaffney, L. P. (author)
- Butler, P. A. (author)
- Scheck, M. (author)
- show more...
- Hayes, A. B. (author)
- Wenander, F. (author)
- Albers, M. (author)
- Bastin, B. (author)
- Bauer, C. (author)
- Blazhev, A. (author)
- Boenig, S. (author)
- Bree, N. (author)
- Chupp, T. (author)
- Cline, D. (author)
- Cocolios, T. E. (author)
- Davinson, T. (author)
- DeWitte, H. (author)
- Diriken, J. (author)
- Grahn, T. (author)
- Herzan, A. (author)
- Huyse, M. (author)
- Jenkins, D. G. (author)
- Joss, D. T. (author)
- Kesteloot, N. (author)
- Konki, J. (author)
- Kowalczyk, M. (author)
- Kroell, Th. (author)
- Kwan, E. (author)
- Lutter, R. (author)
- Moschner, K. (author)
- Napiorkowski, P. (author)
- Pakarinen, J. (author)
- Pfeiffer, M. (author)
- Radeck, D. (author)
- Reiter, P. (author)
- Reynders, K. (author)
- Rigby, S. V. (author)
- Robledo, L. M. (author)
- Rudigier, M. (author)
- Sambi, S. (author)
- Seidlitz, M. (author)
- Siebeck, B. (author)
- Stora, T. (author)
- Thoele, P. (author)
- Van Duppen, P. (author)
- Vermeulen, M. J. (author)
- von Schmid, M. (author)
- Voulot, D. (author)
- Warr, N. (author)
- Wimmer, K. (author)
- Wrzosek-Lipska, K. (author)
- Wu, C. Y. (author)
- Zielinska, M. (author)
- show less...
- (creator_code:org_t)
- 2013-05-08
- 2013
- English.
- In: Nature. - : Springer Science and Business Media LLC. - 0028-0836 .- 1476-4687. ; 497:7448, s. 199-204
- Journal article (peer-reviewed)
Abstract
Subject headings
Close
- There is strong circumstantial evidence that certain heavy, unstable atomic nuclei are 'octupole deformed', that is, distorted into a pear shape. This contrasts with the more prevalent rugby-ball shape of nuclei with reflection-symmetric, quadrupole deformations. The elusive octupole deformed nuclei are of importance for nuclear structure theory, and also in searches for physics beyond the standard model; any measurable electric-dipole moment (a signature of the latter) is expected to be amplified in such nuclei. Here we determine electric octupole transition strengths (a direct measure of octupole correlations) for short-lived isotopes of radon and radium. Coulomb excitation experiments were performed using accelerated beams of heavy, radioactive ions. Our data on Rn-220 and Ra-224 show clear evidence for stronger octupole deformation in the latter. The results enable discrimination between differing theoretical approaches to octupole correlations, and help to constrain suitable candidates for experimental studies of atomic electric-dipole moments that might reveal extensions to the standard model.
Subject headings
- NATURVETENSKAP -- Fysik -- Subatomär fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Subatomic Physics (hsv//eng)
Publication and Content Type
- art (subject category)
- ref (subject category)
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- By the author/editor
- Gaffney, L. P.
- Butler, P. A.
- Scheck, M.
- Hayes, A. B.
- Wenander, F.
- Albers, M.
- show more...
- Bastin, B.
- Bauer, C.
- Blazhev, A.
- Boenig, S.
- Bree, N.
- Cederkäll, Joaki ...
- Chupp, T.
- Cline, D.
- Cocolios, T. E.
- Davinson, T.
- DeWitte, H.
- Diriken, J.
- Grahn, T.
- Herzan, A.
- Huyse, M.
- Jenkins, D. G.
- Joss, D. T.
- Kesteloot, N.
- Konki, J.
- Kowalczyk, M.
- Kroell, Th.
- Kwan, E.
- Lutter, R.
- Moschner, K.
- Napiorkowski, P.
- Pakarinen, J.
- Pfeiffer, M.
- Radeck, D.
- Reiter, P.
- Reynders, K.
- Rigby, S. V.
- Robledo, L. M.
- Rudigier, M.
- Sambi, S.
- Seidlitz, M.
- Siebeck, B.
- Stora, T.
- Thoele, P.
- Van Duppen, P.
- Vermeulen, M. J.
- von Schmid, M.
- Voulot, D.
- Warr, N.
- Wimmer, K.
- Wrzosek-Lipska, ...
- Wu, C. Y.
- Zielinska, M.
- show less...
- About the subject
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- NATURAL SCIENCES
- NATURAL SCIENCES
- and Physical Science ...
- and Subatomic Physic ...
- Articles in the publication
- Nature
- By the university
- Lund University
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