(α,2α) cluster knockout reaction on 9Be and 12C at 580 MeV

A. Nadasen, J. Brusoe, J. Farhat, K. A. G. Rao, D. Sisan, J. Williams, P. G. Roos, F. Adimi, T. Gu, M. Khayat, and R. E. Warner
Phys. Rev. C 59, 760 – Published 1 February 1999
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Abstract

Cross-section measurements of the 9Be,12C(α,2α) reaction at 580 MeV bombarding energy are presented. The data are compared with distorted-wave impulse approximation calculations. The agreement between theory and experiment suggests a dominance of the quasifree knockout mechanism. The extracted α-particle spectroscopic factors are in reasonable agreement with theory and proton-induced knockout reactions, unlike measurements for the (α,2α) reaction at energies <~140 MeV, but still show significant angular dependence.

  • Received 1 September 1998

DOI:https://doi.org/10.1103/PhysRevC.59.760

©1999 American Physical Society

Authors & Affiliations

A. Nadasen, J. Brusoe, J. Farhat, K. A. G. Rao, D. Sisan, and J. Williams

  • Department of Natural Sciences, University of Michigan, Dearborn, Michigan 48128

P. G. Roos, F. Adimi*, T. Gu, and M. Khayat

  • Department of Physics, University of Maryland, College Park, Maryland 20742

R. E. Warner

  • Department of Physics, Oberlin College, Oberlin, Ohio 44074

  • *Present address: Research and Data Systems Corporation, 7833 Walker Dr., Suite 550, Greenbelt, MD 20770.
  • Present address: Cable & Wireless USA, 1919 Gallows Road, Vienna, VA 22182.
  • Present address: Research and Data Systems Corporation, 7833 Walker Dr., Suite 550, Greenbelt, MD 20770.

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Vol. 59, Iss. 2 — February 1999

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