Elsevier

Nuclear Physics A

Volume 483, Issue 2, 20 June 1988, Pages 371-405
Nuclear Physics A

Systematics of complex fragment emission in niobium-induced reactions

https://doi.org/10.1016/0375-9474(88)90542-8Get rights and content

Abstract

Complex fragments of 3<Z⪅35 have been detected in the reverse-kinematics reactions of 93Nb plus 9Be, 12C and 27Al at bombarding energies of E/A=11.4, 14.7 and 18.0 MeV. Velocity spectra and angular distributions show the presence of projectile and target-like components along with a component isotropic (in the reaction plane). This latter component aappears as a Coulomb ring in the invariant cross section plots indicating the presence of a binary decay which is confirmed by the coincidence data. Statistical model calculations indicate that for the Nb+Be and C reactions, the isotropic component is associated with the binary decay of compound nuclei formed in complete fusion reactions. The charge distributions for these two systems are consistent with the conditional barriers predicted with the rotating finite-range model. For the Nb+Al reactions, there is an additional isotropic component besides compound nucleus decay, which may arise from fast fission.

References (58)

  • L.G. Moretto

    Nucl. Phys.

    (1975)
  • M. Conjeaud et al.

    Phys. Lett.

    (1985)
  • R.J. Charity et al.

    Nucl. Phys.

    (1988)
  • D.R. Bowman et al.

    Phys. Lett.

    (1987)
  • D.J. Hinde et al.

    Nucl. Phys.

    (1982)
  • D.J. Hinde et al.

    Nucl. Phys.

    (1983)
  • R.J. Charity et al.

    Nucl. Phys.

    (1986)
  • S. Cohen et al.

    Ann. of Phys.

    (1974)
  • P. Grangé et al.

    Phys. Lett.

    (1980)
  • P. Grangé et al.

    Phys. Rev.

    (1983)
  • R.W. Hasse et al.

    Phys. Lett.

    (1973)
  • G. Sauer et al.

    Nucl. Phys.

    (1976)
  • M. Diebel et al.

    Nucl. Phys.

    (1981)
  • X. Campi et al.

    Z. Phys.

    (1983)
  • M. Fatyga et al.

    Phys. Lett.

    (1987)
  • V.E. Viola et al.

    Phys. Rev.

    (1982)
  • R. Babinet et al.

    Nucl. Phys.

    (1976)
  • R.J. Charity, private...
  • K.T. Davies et al.

    Phys. Rev.

    (1985)
  • W.J. Swiatecki

    Nucl. Phys.

    (1982)
  • S. Bjørnholm et al.

    Nucl. Phys.

    (1982)
  • R. Bass

    Phys. Rev. Lett.

    (1977)
  • L.G. Sobotka et al.

    Phys. Rev. Lett.

    (1983)
  • L.G. Sobotka et al.

    Phys. Rev. Lett.

    (1984)
  • M.A. McMahan et al.

    Phys. Rev. Lett.

    (1985)
  • D. Jacquet et al.

    Phys. Rev. Lett.

    (1984)
  • G. Auger et al.

    Z. Phys.

    (1985)
  • F. Auger et al.

    Phys. Rev.

    (1987)
  • M. Beckerman et al.

    Phys. Rev.

    (1978)
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