Angular correlation and lifetime measurements in Ne22

L. K. Fifield, R. W. Zurmühle, D. P. Balamuth, and S. L. Tabor
Phys. Rev. C 13, 1515 – Published 1 April 1976
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Abstract

Particle-γ angular correlations have been measured for a number of states above 7.3 MeV in Ne22 using the O18(Li7,tγ)Ne22 reaction with the tritons observed at 0°. New information on the spins and parities of several states in Ne22 was obtained. In addition, by demonstrating that the Ne22 nuclei were strongly aligned, these measurements provide support for a direct α-particle transfer mechanism for the O18(Li7,t)Ne22 reaction. Angular correlation and lifetime measurements employing the F19(α,pγ)Ne22 reaction have also been performed for a number of states in Ne22, including several closely spaced doublets on which previous information is incomplete or inconsistent. Lifetimes were measured by the Doppler-shift attenuation method. The results are compared with recent large basis shell model calculations.

NUCLEAR REACTIONS O18(Li7,tγ), E=12.0 MeV; F19(α,pγ), E=12.0, 15.0, 18.5, 19.0 MeV; measured tγ, pγ angular correlations, Doppler-shift attenuation. Ne22 deduced levels, τ, J, π, B(Λ).

  • Received 15 December 1975

DOI:https://doi.org/10.1103/PhysRevC.13.1515

©1976 American Physical Society

Authors & Affiliations

L. K. Fifield*, R. W. Zurmühle, D. P. Balamuth, and S. L. Tabor

  • Physics Department, University of Pennsylvania, Philadelphia, Pennsylvania 19174

  • *Present address: Nuclear Physics Laboratory, Oxford, England.
  • Present address: Physics Division, Argonne National Laboratory, Argonne, Illinois 60439.

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Issue

Vol. 13, Iss. 4 — April 1976

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