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Manuscript Title: Computation of Brody-Moshinsky brackets. | ||

Authors: A. Lejeune, J.P. Jeukenne | ||

Program title: BRODY-MOSHINSKY BRACKETS | ||

Catalogue identifier: ABGC_v1_0Distribution format: gz | ||

Journal reference: Comput. Phys. Commun. 2(1971)231 | ||

Programming language: Fortran. | ||

Computer: IBM 360/65. | ||

Operating system: 0S 360. | ||

RAM: 8K words | ||

Word size: 64 | ||

Keywords: Nuclear spectra, Nuclear structure, Two-body operator matrix elements, Hartree-Fock calculations, Brody-moshinsky Brackets. | ||

Classification: 17.17. | ||

Subprograms used: | ||

Cat
Id | Title | Reference |

ABMA_v1_0 | RACAH | CPC 1(1970)337 |

Nature of problem:The program computes the Brody-Moshinsky brackets defined in M. Moshinsky, Nucl. Phys. 13 (1959) 104 and appearing in the calculation of matrix elements of two-body operators, when the single particle radial wave functions are those of a harmonic oscillator. Such matrix elements are encountered in shell-model and Hartree-Fock calculations. | ||

Solution method:A recursion relation connecting Brody-Moshinsky brackets (B.M.B.) with incresing n1, n2 indices is used. The structure of the program is such that a minimum size core is needed to calculate the B.M.B. | ||

Restrictions:In the present form of the program, restrictions come only from the allowed dimensions which are sufficient for values of the indices n1, n2 <=5. For higher values of the indices, these dimensions may easily be incresed, so that the size restrictions depend only on the computer storage available. | ||

Running time:The running time is 0.40 s for indices n1, n2 equal to 0,1 on the IBM 360/65 computer at the University of Liege. |

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