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Phys. Rev. C 52, 1992 - 2003 (1995)

Propagator modifications in elastic nucleon-nucleus scattering within the spectator expansion

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C. R. Chinn, Ch. Elster, R. M. Thaler, and S. P. Weppner
Department of Physics and Astronomy, Vanderbilt University, Nashville, Tennessee 37235
Center for Computationally Intensive Physics, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831
Institute of Nuclear and Particle Physics, and Department of Physics, Ohio University, Athens, Ohio 45701
Physics Department, Case Western Reserve University, Cleveland, Ohio 44106

Received 27 March 1995

The theory of the elastic scattering of a nucleon from a nucleus is presented in the form of a spectator expansion of the optical potential. Particular attention is paid to the treatment of the free projectile-nucleus propagator when the coupling of the struck target nucleon to the residual target must be taken into consideration. First order calculations within this framework are shown for neutron total cross sections and for proton scattering for a number of target nuclides at a variety of energies. The calculated values of these observables are in very good agreement with measurement.


©1995 The American Physical Society

URL: http://link.aps.org/doi/10.1103/PhysRevC.52.1992
DOI: 10.1103/PhysRevC.52.1992
PACS: 25.40.Cm, 25.40.Dn, 24.10.Ht

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