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[Licence| Download | New Version Template] adro_v1_0.zip(8 Kbytes)
Manuscript Title: Dispersion relations in the nuclear optical model.
Authors: J.M. Quesada, R. Capote, A. Molina, M. Lozano
Program title: DOM
Catalogue identifier: ADRO_v1_0
Distribution format: zip
Journal reference: Comput. Phys. Commun. 153(2003)97
Programming language: Fortran.
Computer: PCs (Pentium class).
Operating system: COMPAQ-DIGITAL UNIX, Microsoft WINDOWS, LINUX.
RAM: 250K words
Word size: 32
Keywords: Optical model, Dispersion relations, Real and imaginary potentials, Nuclear physics.
Classification: 17.9.

Nature of problem:
An analytical solution of dispersion integral relations, linking the real and imaginary part of the nuclear OMP, has been derived for the most common functional forms. The general numerical solution is also presented.

Solution method:
The decomposition of the integrand function using the analytical properties has been used to calculate the dispersive integral in the complex plane. The numerical solution is based on Gauss-Legendre quadrature formulae.

Restrictions:
None. If the dispersive integral of the imaginary potential does not have an analytical solution, the general numerical solution can be used.

Running time:
A few seconds in Pentium class computer.