Neutron correlations in the decay of the first excited state of 11Li

J. K. Smith*, T. Baumann, D. Bazin, J. Brown, P. A. DeYoung, N. Frank, M. D. Jones, Z. Kohley, B. Luther, B. Marks, A. Spyrou, S. L. Stephenson, M. Thoennessen, A. Volya

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

The decay of unbound excited 11Li was measured after being populated by a two-proton removal from a 13B beam at 71 MeV/nucleon. Decay energy spectra and Jacobi plots were obtained from measurements of the momentum vectors of the 9Li fragment and neutrons. A resonance at an excitation energy of ~1.2 MeV was observed. The kinematics of the decay are equally well fit by a simple dineutron-like model or a phase-space model that includes final state interactions. A sequential decay model can be excluded.

Original languageEnglish (US)
Pages (from-to)27-40
Number of pages14
JournalNuclear Physics A
Volume955
DOIs
StatePublished - Nov 1 2016
Externally publishedYes

Keywords

  • Exotic nuclei
  • Halo nuclei
  • Neutron spectroscopy
  • Three-body correlations

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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