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Fluctuations in Charged Particle Cross Sections

  • W. R. Gibbs

Abstract

In 1960 Ericson (1) pointed out that when the excitation energy of the nucleus is high enough that the average width of the compound nucleus levels greatly exceeds their average spacing the cross section as a function of energy should exhibit random fluctuations. In the limit of Γ/D » 1 the coherence width of the fluctuations depends only on the average lifetime of the compound nucleus. The mathematical picture that he presented at that time remains valid in its essentials today. Let us spend a few minutes reviewing this picture.

Keywords

Angular Momentum Excitation Energy Level Density Reaction Cross Section Compound Nucleus 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. (1).
    T. Ericson, Phys. Rev. Letters 5, 430 (1960).ADSCrossRefGoogle Scholar
  2. (2).
    See M. G. Braga Marcazzan and L. Milazzo Colli, Progress in Nuclear Physics 11, 145 for a complete review of this area.Google Scholar
  3. (3).
    V. Bobyr, M. Corti, M. G. Marcazzan, L. Milazzo Colli and M. Milazzo, Energia Nucleare 13, 312 (1966).Google Scholar
  4. (4).
    G. Dearnaley, W. R. Gibbs, R. B. Leachman and P. C. Rogers, Phys. Rev. 139B, 1170 (1965).ADSCrossRefGoogle Scholar
  5. (5).
    R. B. Leachman, p. 773, Proceedings of the International Nuclear Physics Conference, Gatlinburg, Tenn. (1966), Academic Press, New York.Google Scholar
  6. (6).
    P. P. Singh, B. A. Watson, J. J. Kroepfl, and T. P. Marvin, Phys. Rev. Letters 18, 31 (1966).Google Scholar
  7. (7).
    P. A. Moldauer, Phys. Rev. Letters 18, 249 (1967); 19, 1047 (1967); Phys. Rev. 157, 907 (1967); 171, 1164 (1968); W. R. Gibbs, Phys. Rev. 181, 1414 (1969).ADSCrossRefGoogle Scholar
  8. (8).
    A. K. Kerman and K. McVoy (private communication).Google Scholar
  9. (9).
    M. L. Halbert, F. E. Durham and A. Van Der Woude, Phys. Rev. 162, 899 (1967).ADSCrossRefGoogle Scholar
  10. (10).
    P. Fessenden, W. R. Gibbs, and R. B. Leachman, Phys. Rev. Letters 15, 796 (1965), Phys. Rev. C3, 807 (1971).ADSCrossRefGoogle Scholar

Copyright information

© Plenum Press 1972

Authors and Affiliations

  • W. R. Gibbs
    • 1
  1. 1.Los Alamos Scientific LaboratoryUniversity of CaliforniaLos AlamosUSA

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