Angular correlation studies of electromagnetic transitions following the 16O(τ, α)15O reaction

R. Avida, M. B. Goldberg, Y. Horowitz, K. H. Speidel, Y. Wolfson

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

A particle-gamma angular correlation coincidence technique enabling the measurement of 0° coincidences was used to study levels in 15O at 5.24 MeV (Jπ = 5 2+), 6.18 MeV (Jπ = 3 2-), 6.79 MeV (Jπ = 3 2+) and 6.86 MeV (Jπ = 5 2+). The multipole mixing ratios of the de-excitation γ-rays were determined as the following: x(5.24→ 0) = +0.08±0.08 an E3/M2 mixture; x(6.86 → 5.24) = +0.04±0.03, an E2/M1 mixture; x(6.79 → 0) = -0.02±0.02, an M2/E1 mixture and x(6.18 → 0) = -0.121 ±0.008 an E2/M1 mixture. The latter value is to be compared with x((E2/M1) = +0.13 ±0.02 for the mirror 6.323 MeV transition in 15N indicating |x(15O)| ≦ |x(15N)| contrary to previous findings (10). The results obtained, together with those corresponding to mirror transitions in 15N are compared with recent IPM and core polarization theoretical investigations.

Original languageEnglish
Pages (from-to)113-126
Number of pages14
JournalNuclear Physics A
Volume172
Issue number1
DOIs
StatePublished - 30 Aug 1971
Externally publishedYes

Keywords

  • Nuclear reaction

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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