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Two proton high spin excitations and dipole bands in 192hg

Research output: Contribution to journalArticle

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Author(s)

  • Y. Le Coz
  • A. Astier
  • R. Béraud
  • R. Duffait
  • N. Redon
  • G. Bastin
  • I. Deloncle
  • B. Gall
  • F. Hannachi
  • M. Kaci
  • M. G. Porquet
  • C. Schiick
  • F. Azaiez
  • C. Bourgeois
  • J. Duprat
  • A. Korichi
  • N. Perrin
  • N. Poffe
  • H. Sergolle
  • C. W. Beausang
  • S. J. Gale
  • M. J. Joyce
  • E. S. Paul
  • J. F. Sharpey-Schafer
  • R. M. Clark
  • K. Hauschild
  • J. Simpson
  • G. Smith
  • H. Hiibel
  • P. Willsau
  • G. De France
  • I. Ahmad
  • M. Carpenter
  • R. Henry
  • R. V.F. Janssens
  • T. L. Khoo
  • T. Lauritsen

Department/unit(s)

Publication details

JournalPhysica Scripta
DatePublished - 1 Jan 1995
Issue numberT56
Volume1995
Number of pages2
Pages (from-to)234-235
Original languageEnglish

Abstract

The 192Hg nucleus has been produced via the 36S(160Gd, 4n) reaction at a beam energy of 159 MeV. The y-rays have been detected with the multi-detector array EUROGAM phase 1. The level scheme has been extended up to 10.4 MeV excitation energy and spin 34. Two new structures, com-posed of competing A/= 1 and A/= 2 transitions, have been observed and, for the first time in Mercury isotopes, some links with the previously known low-lying states have been established. These experimental results are discussed in terms of mean-field Hartree-Fock plus BCS calculations and the new bands are proposed to originate from deformation-aligned quasi-proton excitations. n(i13 2 * hg 2)K,= n and n(hg2)j, c = 3. coupled to rotation-aligned quasi-neutrons v(/13,)" and quasi-proton n(hn 2)2 excita-tions.

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