Programs in Physics & Physical Chemistry
|[Licence| Download | New Version Template] adsh_v1_0.tar.gz(367 Kbytes)|
|Manuscript Title: RADCAP: a potential model tool for direct capture reactions.|
|Authors: C.A. Bertulani|
|Program title: RADCAP|
|Catalogue identifier: ADSH_v1_0|
Distribution format: tar.gz
|Journal reference: Comput. Phys. Commun. 156(2003)123|
|Programming language: Fortran 77.|
|Computer: IBM-PC and UNIX machines.|
|Operating system: Windows, UNIX.|
|RAM: 1M words|
|Keywords: Potential model, Photodissociation, Radiative capture, Astrophysical S-factors, Nuclear Physics, Direct reactions.|
Nature of problem:
The program calculates bound and continuum wavefunctions, phase-shifts and resonance widths, astrophysical S-factors, and other quantities of interest for direct capture reactions.
Solves the radial Schrodinger equation for bound and for continuum states. First the eigenenergy is estimated by using the WKB method. Then a Numerov integration is used outwardly and inwardly and a matching at the nuclear surface is done to obtain the energy and the bound state wavefunction with good accuracy. The continuum states are obtained by a Runge-Kutta integration, matching the Coulomb wavefunctions at large distances outside the range of the nuclear potential.
Almost all the CPU time is consumed by the solution of the radial Schrodinger equation. It is about 1 minute on a 1GHz Intel P4-processor machine for a Woods-Saxon potential.
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