4He decay of excited states in 14C

N. Soić, M. Freer, L. Donadille, N. M. Clarke, P. J. Leask, W. N. Catford, K. L. Jones, D. Mahboub, B. R. Fulton, B. J. Greenhalgh, D. L. Watson, and D. C. Weisser
Phys. Rev. C 68, 014321 – Published 30 July 2003
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Abstract

A study of the 7Li(9Be,4He10Be)2H reaction at Ebeam=70MeV has been performed using resonant particle spectroscopy techniques and provides the first measurements of α-decaying states in 14C. Excited states are observed at 14.7, 15.5, 16.4, 18.5, 19.8, 20.6, 21.4, 22.4, and 24.0 MeV. The experimental technique was able to resolve decays to the various particle bound states in 10Be and provides evidence for the preferential decay of the high energy excited states into states in 10Be at ∼6 MeV. The decay processes are used to indicate the possible cluster structure of the 14C excited states.

  • Received 11 March 2003

DOI:https://doi.org/10.1103/PhysRevC.68.014321

©2003 American Physical Society

Authors & Affiliations

N. Soić*, M. Freer, L. Donadille, N. M. Clarke, and P. J. Leask

  • School of Physics and Astronomy, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom

W. N. Catford, K. L. Jones, and D. Mahboub

  • School of Electronics and Physical Sciences, University of Surrey, Guildford, Surrey GU2 5XH, United Kingdom

B. R. Fulton, B. J. Greenhalgh, and D. L. Watson

  • Department of Physics, University of York, Heslington, York YO10 5DD, United Kingdom

D. C. Weisser

  • Department of Nuclear Physics, The Australian National University, Canberra ACT 0200, Australia

  • *Permanent address: Ruđer Bošković Institute, Bijenička 54, HR-10000 Zagreb, Croatia.
  • Present address: CEA-Saclay, DAPNIA/SPhN, Bt. 703, Pice 162, F-91191 Gif sur Yvette Cedex, France.
  • Present address: GSI, Gesellschaft für Schwerionenforschung mbH, Planckstrasse 1, D-64291 Darmstadt, Germany.

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Vol. 68, Iss. 1 — July 2003

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