Particle stability of the isotopes O26 and Ne32 in the reaction 44 MeV/nucleon Ca48+Ta

D. Guillemaud-Mueller, J. C. Jacmart, E. Kashy, A. Latimier, A. C. Mueller, F. Pougheon, A. Richard, Yu. E. Penionzhkevich, A. G. Artuhk, A. V. Belozyorov, S. M. Lukyanov, R. Anne, P. Bricault, C. Détraz, M. Lewitowicz, Y. Zhang, Yu. S. Lyutostansky, M. V. Zverev, D. Bazin, and W. D. Schmidt-Ott
Phys. Rev. C 41, 937 – Published 1 March 1990
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Abstract

An attempt has been made to synthesize the extremely neutron-rich isotope O26 in the nuclear reaction 44 MeV/nucleon Ca48+n/rTa. Use was made of magnetic separation and identification methods including time-of-flight and ΔE,E measurements. The O26 nucleus appears to be unstable against particle emission since no events attributable to the O26 nucleus were observed at a level one order of magnitude lower than that predicted from the extrapolated yields. The previously unobserved isotope Ne32 was found to be particle stable and the isotope Ne31 particle unstable. Neutron-separation energies calculated with different models are tabulated.

  • Received 31 October 1989

DOI:https://doi.org/10.1103/PhysRevC.41.937

©1990 American Physical Society

Authors & Affiliations

D. Guillemaud-Mueller, J. C. Jacmart, E. Kashy, A. Latimier, A. C. Mueller, F. Pougheon, and A. Richard

  • Institut de Physique Nucléaire, F-91406 Orsay CEDEX, France

Yu. E. Penionzhkevich, A. G. Artuhk, A. V. Belozyorov, and S. M. Lukyanov

  • Laboratory of Nuclear Reactions, Joint Institute for Nuclear Research, P.O. Box 79, Dubna, Moscow, U.S.S.R.

R. Anne, P. Bricault, C. Détraz, M. Lewitowicz, and Y. Zhang

  • Grand Accélérateur National d’Ions Lourds, Boîte Postale 5027, F-14021 Caen CEDEX, France

Yu. S. Lyutostansky and M. V. Zverev

  • Moscow Physical Engineering Institute, Moscow, U.S.S.R.

D. Bazin

  • Centre d’Etudes Nucléaires de Bordeaux, Le Haut Vigneau, 33170 Gradignan, France

W. D. Schmidt-Ott

  • II Physikalisches Institut, Universität Göttingen, D-3400 Göttingen, Federal Republic of Germany

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Vol. 41, Iss. 3 — March 1990

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