One-nucleon transfer reactions to continuum states induced by heavy ion projectiles

I. Lhenry, T. Suomijärvi, Y. Blumenfeld, Ph. Chomaz, N. Frascaria, J. P. Garron, J. C. Roynette, J. A. Scarpaci, D. Beaumel, S. Fortier, S. Gales, H. Laurent, A. Gillibert, G. M. Crawley, J. Finck, G. Yoo, and J. Barreto
Phys. Rev. C 54, 593 – Published 1 August 1996
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Abstract

High-lying excitations were studied by means of the 208207Pb, 210209Bi, and 6059Ni stripping reactions and 208209Pb and 6263Ni pickup reactions induced by Ne20 and Ar36 projectiles at 48 and 42 MeV/nucleon, respectively. In the stripping spectra, structures a few MeV wide are observed at excitation energies of 10–15 MeV, embedded in a large continuum. The corresponding Q values suggest that these structures are predominantly due to single-particle excitations rather than to the excitation of collective states such as giant resonances. This interpretation is in agreement with a microscopic calculation showing that in the one-nucleon transfer reactions only a small part of the cross section is due to the collective excitations. The overall shape of the neutron stripping spectra is well reproduced by the semiclassical reaction model of Bonaccorso and Brink, which treats on the same footing both the breakup of the projectile and the transfer to single-particle resonances. © 1996 The American Physical Society.

  • Received 12 April 1996

DOI:https://doi.org/10.1103/PhysRevC.54.593

©1996 American Physical Society

Authors & Affiliations

I. Lhenry, T. Suomijärvi, Y. Blumenfeld, Ph. Chomaz, N. Frascaria, J. P. Garron, J. C. Roynette, J. A. Scarpaci, D. Beaumel, S. Fortier, S. Gales, H. Laurent, A. Gillibert, G. M. Crawley, J. Finck, G. Yoo, and J. Barreto

  • Institut de Physique Nucléaire, IN2P3-CNRS, 91406 Orsay, France
  • GANIL, BP 5027, 14021 Caen, France
  • SPhN-DAPNIA, CE Saclay, 91191 Gif-sur-Yvette, France
  • NSCL MSU, East Lansing, Michigan 48824 Department of Physics, Central Michigan University, Mt. Pleasant, Michigan 48859
  • Universidade Federal, Rio de Janeiro 21945, Brazil

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Vol. 54, Iss. 2 — August 1996

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