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Direct Evidence for Octupole Deformation in
Bucher, B; Zhu, S; Wu, C Y; Janssens, R V F; Bernard, R N; Robledo, L M; Rodríguez, T R; Cline, D; Hayes, A B; Ayangeakaa, A D; Buckner, M Q; Campbell, C M; Carpenter, M P; Clark, J A; Crawford, H L; David, H M; Dickerson, C; Harker, J; Hoffman, C R; Kay, B P; Kondev, F G; Lauritsen, T; Macchiavelli, A O; Pardo, R C; Savard, G; Seweryniak, D; Vondrasek, R.
Affiliation
  • Bucher B; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Zhu S; Idaho National Laboratory, Idaho Falls, Idaho 83415, USA.
  • Wu CY; Argonne National Laboratory, Argonne, Illinois 60439, USA.
  • Janssens RVF; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Bernard RN; Argonne National Laboratory, Argonne, Illinois 60439, USA.
  • Robledo LM; Departamento de Física Teórica, Universidad Autónoma de Madrid, E-28049 Madrid, Spain.
  • Rodríguez TR; Departamento de Física Teórica, Universidad Autónoma de Madrid, E-28049 Madrid, Spain.
  • Cline D; Departamento de Física Teórica, Universidad Autónoma de Madrid, E-28049 Madrid, Spain.
  • Hayes AB; University of Rochester, Rochester, New York 14627, USA.
  • Ayangeakaa AD; University of Rochester, Rochester, New York 14627, USA.
  • Buckner MQ; Argonne National Laboratory, Argonne, Illinois 60439, USA.
  • Campbell CM; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Carpenter MP; Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA.
  • Clark JA; Argonne National Laboratory, Argonne, Illinois 60439, USA.
  • Crawford HL; Argonne National Laboratory, Argonne, Illinois 60439, USA.
  • David HM; Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA.
  • Dickerson C; Argonne National Laboratory, Argonne, Illinois 60439, USA.
  • Harker J; Argonne National Laboratory, Argonne, Illinois 60439, USA.
  • Hoffman CR; Argonne National Laboratory, Argonne, Illinois 60439, USA.
  • Kay BP; University of Maryland, College Park, Maryland 20742, USA.
  • Kondev FG; Argonne National Laboratory, Argonne, Illinois 60439, USA.
  • Lauritsen T; Argonne National Laboratory, Argonne, Illinois 60439, USA.
  • Macchiavelli AO; Argonne National Laboratory, Argonne, Illinois 60439, USA.
  • Pardo RC; Argonne National Laboratory, Argonne, Illinois 60439, USA.
  • Savard G; Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA.
  • Seweryniak D; Argonne National Laboratory, Argonne, Illinois 60439, USA.
  • Vondrasek R; Argonne National Laboratory, Argonne, Illinois 60439, USA.
Phys Rev Lett ; 118(15): 152504, 2017 Apr 14.
Article in En | MEDLINE | ID: mdl-28452498
ABSTRACT
Despite the more than 1 order of magnitude difference between the measured dipole moments in ^{144}Ba and ^{146}Ba, the octupole correlations in ^{146}Ba are found to be as strong as those in ^{144}Ba with a similarly large value of B(E3;3^{-}→0^{+}) determined as 48(+21-29) W.u. The new results not only establish unambiguously the presence of a region of octupole deformation centered on these neutron-rich Ba isotopes, but also manifest the dependence of the electric dipole moments on the occupancy of different neutron orbitals in nuclei with enhanced octupole strength, as revealed by fully microscopic calculations.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Phys Rev Lett Year: 2017 Document type: Article Affiliation country:
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Phys Rev Lett Year: 2017 Document type: Article Affiliation country: