Low-lying resonance states in the Be-9 continuum

Y Prezado, M J G Borge, Christian Aaen Diget, L M Fraile, B R Fulton, H O U Fynbo, H B Jeppesen, B Jonson, A Meister, T Nilsson, G Nyman, K Riisager, O Tengblad, K Wilhelmsen

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Abstract

Excited states in Be-9 from 2 to 9 MeV are studied via beta delayed particle emission from Li-9. The broad overlapping particle unbound states are investigated using an extension of an experimental method developed for dealing with three-body decays of broad isolated levels. The results confirm the existence of a broad state at 5 MeV, with a width of 2 MeV. Angular correlations are used for firm spin determinations for this and other levels. (c) 2005 Elsevier B.V. All rights reserved.

Original languageEnglish
Pages (from-to)43-50
Number of pages8
JournalPhysics Letters B
Volume618
Issue number1-4
DOIs
Publication statusPublished - 7 Jul 2005

Keywords

  • radioactivity Li-9(beta(-)-decay) [from Ta(p, X)]
  • measured beta-delayed E-alpha
  • alpha,alpha-coincidence
  • Be-9 deduced levels and spins
  • partial decay branches
  • LIGHT-NUCLEI
  • ENERGY-LEVELS
  • BETA-DECAY
  • LI-9
  • B-9
  • PHOTODISINTEGRATION
  • SHELL

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