Equivalent bare optical potentials in heavy-ion inelastic scattering

doi:10.1016/0370-2693(81)90603-1

Physics Letters B

Volume 100, Issue 6, 23 April 1981, Pages 453-456

https://doi.org/10.1016/0370-2693(81)90603-1 Get rights and content

Abstract

The equivalent bare optical potentials have been calculated for the inelastic scattering of ¹⁶O and ¹³C by ⁴⁰Ca at 60 and 68 MeV, respectively. The potentials obtained are quite consistent with those found phenomenologically by coupled-channels calculations. The shape of the bare potential is interpreted by showing the significant contribution of the nuclear—Coulomb cross term.

References (8)

K. Alder et al.
Rev. Mod. Phys.
(1956)
P.D. Bond et al.
Phys. Lett.
(1977)
R.C. Johnson et al.
Phys. Rev.
(1970)
E.A. Seglie et al.
Phys. Rev. Lett.
(1979)
Phys. Lett.
(1980)
R.J. Ascuitto et al.
Phys. Rev. Lett.
(1978)

There are more references available in the full text version of this article.

Cited by (7)

Comments on conventional DWBA and asymmetric DWBA on the basis of the exact distorted-wave method
1985, Physics Letters B
Polarization potentials in heavy-ion scattering
1984, Physics Reports
A polarization potential is defined in terms of the Feshbach projection operator formalism to represent the effect upon the elastic channel of the coupling to non-elastic channels in heavy-ion scattering. The polarization potential represents coupling to specific surface degrees of freedom of the particular reaction considered and it is contrasted to the complementary global approaches for the volume potential such as the folding model and the proximity potential. The coupled channels method is used both as a source of exact model solutions for comparison with the various approximate potential forms and also as a numerical means of constructing trivially equivalent local potentials. The imaginary Coulomb polarization potential is due in lowest order to quadrupole coupling to the lowest collective 2⁺ state of a nucleus. It is considered in detail since it provides the insight of closed analytical forms in various approximations. Multistep coupling to higher states, energy loss and off-energy shell effects are also considered analytically. The real Coulomb polarization potential due to the virtual excitation of multipole giant resonances, and the polarization potential arising from relativistic corrections, are investigated in detail. Polarization potential components due to nuclear coupling are investigated numerically. Analytical cross section approaches are contrasted with the polarization potential approach and with coupled channels.
Exact first- and second-order distorted-wave born methods
1983, Physics Letters B
The T-matrix of a given coupled channel problem is without further approximations cast into the form of the first- and second-order DWBA methods on the basis of Feshbach's projection method. The optical potentials and the coupling interactions to be used in these methods are determined by a truncation of the channel space. The resulting expressions for the T-matrix are of a DWBA form even in strong coupling situations. Elastic and inelastic scattering to the single 2⁺ and the mutual 2⁺ excitations in ¹²C + ¹²C are discussed as a simple example.
Exact multistep distorted-wave method
1988, Physical Review C
Polarization effects for elastic and inelastic scattering with an adiabatic-propagator approximation
1983, Zeitschrift für Physik A Atoms and Nuclei
C12 on Ca48 transfer reactions: A test of the effective Q-value model
1983, Physical Review C

View all citing articles on Scopus

¹: Permanent address: Department of Physics, Faculty of Science, Tokyo Metropolitan University, Tokyo, Japan.

View full text

Equivalent bare optical potentials in heavy-ion inelastic scattering

Abstract

Rev. Mod. Phys.

Phys. Lett.

Phys. Rev.

Phys. Rev. Lett.

Phys. Lett.

Phys. Rev. Lett.