(γ,n) study of the isovector quadrupole resonance in 40Ca

Research output: Contribution to journalArticle

Abstract

The forward-to-backward asymmetry of neutrons emitted in the 40Ca(γ,n0) reaction was measured at photon energies in the range of 27–50 MeV. An energy-dependent asymmetry was observed that is interpreted as evidence of interference between the isovector quadrupole resonance and the giant dipole resonance. Data analysis in terms of semiclassical and direct-semidirect models estimate the isovector quadrupole resonance to be at an excitation energy of 31.0±1.5 MeV, with a width of 16.0±1.5 MeV, and exhausting most of the energy-weighted sum rule for the isovector quadrupole resonance.

Details

Authors
Organisations
External organisations
  • University of Melbourne
  • Lund University
  • University of Glasgow
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Subatomic Physics
Original languageEnglish
Pages (from-to)1288-1294
Journal Physical Review C: covering nuclear physics
Volume55
Issue number3
Publication statusPublished - 1997
Publication categoryResearch
Peer-reviewedYes

Related projects

Kevin Fissum

1996/01/012017/12/31

Project: Research

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