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Multichannel R-matrix analysis of elastic and inelastic resonances in the Na+p compound systems

Research output: Contribution to journalArticle

  • C. Ruiz
  • R.E. Azuma
  • R.N. Boyd
  • L. Buchmann
  • A. Chen
  • N.M. Clarke
  • J.M. D'Auria
  • B.R. Fulton
  • D. Groombridge
  • D. Hutcheon
  • A.M. Laird
  • J. Pearson
  • I. Roberts
  • A. Robinson
  • F. Sarazin
  • P. Walden

Related Edinburgh Organisations

Original languageEnglish
Pages (from-to)166C-169C
Number of pages4
JournalNuclear Physics A
Issue number1-4 SPEC. ISS.
Publication statusPublished - 25 Jul 2005


Resonant scattering studies were performed using radioactive Na-20,Na-21 beams at ISAC between energies of 0.5 keV/u and 1.5 keV/u. Intensities of up to I x 10(8) /sec were used with thick CH2 targets, and elastic and inelastic proton resonances were observed corresponding to states in Mg-21,Mg-22 by detecting recoil protons using the LEDA silicon array. A multichannel R-Matrix formalism was used to fit the excitation functions leading to the deduction of partial widths and spin-parity assignments. In certain cases definite spin-parity assignments could be made without fitting angular distributions due to the constraining nature of Coulomb-interfering resonances. Where possible, analogue assignments are made in the A=22, T=1, system based on the Na-21+p analysis.

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