Physics – Nuclear Physics
Scientific paper
Jan 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992phrvl..68..150g&link_type=abstract
Physical Review Letters (ISSN 0031-9007), vol. 68, Jan. 13, 1992, p. 150-153. Research supported by NSF Presidential Young Inves
Physics
Nuclear Physics
19
Absorption Cross Sections, Carbon 12, Coulomb Collisions, Gold Isotopes, Lithium Isotopes, Nuclear Reactions, Alpha Particles, Astrophysics, Energy Spectra, Nuclear Physics
Scientific paper
Strong direct processes were observed for elastic breakup in 54-MeV Li-7 + C-12, Au-197 reactions. In the case of C-12, the observed Li-7 to alpha + t direct-breakup yield was significantly larger than predicted by a Coulomb-breakup calculation, indicating the importance of the nuclear field. For Au-197, final-state interactions produced a strong distortion in the fragment energy spectra, as well as a modulation of the coincidence efficiency for different detector geometries. Such Coulomb effects are found to severely complicate the extraction of radiative-capture cross sections from direct-breakup data.
Gazes S. B.
Mason Elliott J.
Roberts Bonnie R.
Teichmann S. G.
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