Computer Physics Communications Program LibraryPrograms in Physics & Physical Chemistry |

[Licence| Download | New Version Template] aeyp_v1_0.tar.gz(84 Kbytes) | ||
---|---|---|

Manuscript Title: An R-matrix package for coupled-channel problems in nuclear physics | ||

Authors: P. Descouvemont | ||

Program title: rmatrix | ||

Catalogue identifier: AEYP_v1_0Distribution format: tar.gz | ||

Journal reference: Comput. Phys. Commun. 200(2016)199 | ||

Programming language: Fortran 90. | ||

RAM: Memory usage strongly depends on the nature of the problem (number of channels, size of the basis). | ||

Keywords: Scattering theory, R-matrix method, Lagrange meshes, Coupled-channel problems. | ||

Classification: 17.8. | ||

External routines: If available, the LAPACK library can be used for matrix inversion (faster than the sub-routine included in the package). | ||

Nature of problem:Solving coupled-channel problems for positive energies; the package provides the collision matrix and the associated wave function for given energy, spin and parity. | ||

Solution method:The coupled-channel system is solved with the R-matrix method, and Lagrange functions are adopted. Propagation of the R-matrix can be performed. | ||

Restrictions:For non-local potentials, the propagation technique cannot be used. | ||

Running time:strongly depends on the nature of the problem. For single-channel calculations, the running type is typically less than 1 s. For large scale calculations (typically more than 100 channels), the running time may increase up to several minutes on a multi-CPU Linux machine. |

Disclaimer | ScienceDirect | CPC Journal | CPC | QUB |