Clarification of the Three-Body Decay of C12 (12.71 MeV)

H. O. U. Fynbo, Y. Prezado, U. C. Bergmann, M. J. G. Borge, P. Dendooven, W. X. Huang, J. Huikari, H. Jeppesen, P. Jones, B. Jonson, M. Meister, G. Nyman, K. Riisager, O. Tengblad, I. S. Vogelius, Y. Wang, L. Weissman, K. Wilhelmsen Rolander, and J. Äystö
Phys. Rev. Lett. 91, 082502 – Published 21 August 2003

Abstract

Using β decays of a clean source of N12 produced at the IGISOL facility, we have measured the breakup of the C12 (12.71 MeV) state into three α particles with a segmented particle detector setup. The high quality of the data permits solving the question of the breakup mechanism of the 12.71 MeV state, a longstanding problem in few-body nuclear physics. Among existing models, a modified sequential model fits the data best, but systematic deviations indicate that a three-body description is needed.

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  • Received 15 April 2003

DOI:https://doi.org/10.1103/PhysRevLett.91.082502

©2003 American Physical Society

Authors & Affiliations

H. O. U. Fynbo1,*, Y. Prezado2, U. C. Bergmann3, M. J. G. Borge2, P. Dendooven4, W. X. Huang4, J. Huikari4, H. Jeppesen1, P. Jones4, B. Jonson5, M. Meister5, G. Nyman5, K. Riisager1, O. Tengblad2, I. S. Vogelius1, Y. Wang4, L. Weissman3, K. Wilhelmsen Rolander6, and J. Äystö4

  • 1Institut for Fysik og Astronomi, Aarhus Universitet, DK-8000 Aarhus C, Denmark
  • 2Instituto Estructura de la Materia, CSIC, Serrano 113bis, E-28006 Madrid, Spain
  • 3EP Division, CERN, CH-1211 Genève 23, Switzerland
  • 4Department of Physics, University of Jyväskylä, FIN-40351 Jyväskylä, Finland
  • 5Experimentell Fysik, Chalmers Tekniska Högskola och Göteborgs Universitet, S-412 96 Göteborg, Sweden
  • 6Fysiska Institutionen, Stockholms Universitet, Box 6730, S-113 85 Stockholm, Sweden

  • *Electronic address: fynbo@phys.au.dk

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Vol. 91, Iss. 8 — 22 August 2003

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