Alpha-cluster knockout in the O-16(e,e 'alpha)C-12 reaction

  • G De Meyer*
  • , EC Aschenauer
  • , HP Blok
  • , D Groep
  • , K Hicks
  • , H Holvoet
  • , E Jans
  • , L Lapikas
  • , B Lannoy
  • , GJL Nooren
  • , CJG Onderwater
  • , D Ryckbosch
  • , JD Schipper
  • , JJM Steijger
  • , MFM Steenbakkers
  • , M Tytgat
  • , G van der Steenhoven
  • , R Van de Vyver
  • , L Van Hoorebeke
  • , MA van Uden
  • J Volmer
*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

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Abstract

The knockout of a-clusters induced by electrons has been used to study four-nucleon correlations in O-16. For the transition to the ground state of C-12 the (e, e ' alpha) cross section has been measured for three values of the momentum transfer and four values of the missing momentum. The momentum-transfer dependence gives evidence for a quasi-elastic alpha -knockout mechanism. The shape of the measured missing-momentum distribution is reasonably well described by shell-model and cluster-model calculations, but the theoretical curves overshoot the data by a factor three to four

Original languageEnglish
Pages (from-to)258-264
Number of pages7
JournalPhysics Letters B
Volume513
Issue number3-4
DOIs
Publication statusPublished - 2-Aug-2001
Externally publishedYes

Keywords

  • electron-induced knockout reactions
  • four-nucleon correlations
  • alpha-clustering
  • PION-NUCLEUS INTERACTIONS
  • SHORT-RANGE CORRELATIONS
  • ELECTRON-SCATTERING
  • SPECTROSCOPIC FACTORS
  • P,P-ALPHA REACTION
  • O-16
  • SHELL
  • ABSORPTION
  • MECHANISM
  • LI-6

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