Programs in Physics & Physical Chemistry
|[Licence| Download | New Version Template] aclq_v1_0.gz(37 Kbytes)|
|Manuscript Title: A program for the calculation of energy spectra and reduced nuclear matrix elements in the frame of Davydov-Chaban model.|
|Authors: J. Lubian, R. Cabezas|
|Program title: DAFICHA|
|Catalogue identifier: ACLQ_v1_0|
Distribution format: gz
|Journal reference: Comput. Phys. Commun. 76(1993)98|
|Programming language: Fortran.|
|Computer: INTEL 80386+80387.|
|Operating system: MS-DOS 5.00.|
|RAM: 200K words|
|Word size: 16|
|Keywords: Nuclear physics, Nuclear reaction, Davydov-chaban model, Matrix elements reduced, Coupled channels, Energy spectra, Square-roots Minimization, Weber functions, Nuclear deformation.|
Nature of problem:
Reduced matrix elements needed for coupled channel calculation in the frame of the Davydov-Chaban model are computed. Interacting potential is expanded in power of deformation paramemeters up to the second order terms, including the quadrupole and hexadecapole modes. The nuclear spectrum of Davydov-Chaban model is also computed. A search procedure of model parameters on the basis of the experimental spectra is included.
The Hamiltonian is diagonalized in the soft nonaxial rotator basis. The deformed Wood-Saxon potential is generated at a deformation specified in terms of the multipole expansion including nonaxial quadrupole alpha22(Y22+Y2-2) and hexadecapole alpha42(Y42+Y4-2), alpha44(Y44+Y4-4) components. The matrix elements are computed by numerical integration using the recursive procedure.
Maximum number of nuclear states: 20 and maximum spin of the nuclear state: 24
Depends on the number of nuclear states considered. In the example presented below the running time is 71 seg. (for test-1) and 280 seg. (for test-2) on PC AT (INTEL 386-387), 33 MHz.
|Disclaimer | ScienceDirect | CPC Journal | CPC | QUB|