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[Licence| Download | New Version Template] abgr_v1_0.gz(6 Kbytes)
Manuscript Title: Calculations of generalized harmonic oscillator brackets.
Authors: J. Dobes
Program title: TAMOBR
Catalogue identifier: ABGR_v1_0
Distribution format: gz
Journal reference: Comput. Phys. Commun. 16(1979)373
Programming language: Fortran.
Computer: IBM 370/135.
Operating system: OS/VS1, OS/ES.
RAM: 17K words
Word size: 32
Keywords: Nuclear physics, Reaction, Two-body operator Matrix elements, Talmi-moshinsky bracket, Harmonic generalized Oscillator bracket, Harmonic oscillator.
Classification: 17.17.

Nature of problem:
The generalized harmonic oscillator brackets form the transformation matrix for the transition from the single-particle coordinates to the centre of mass and relative coordinates in a two-particle harmonic oscillator basis. Unequal masses of particles are considered.

Solution method:
Recently published closed form for oscillator bracket is used. Two subprograms are presented, one for evaluation of a single bracket, the other for simultaneous calculation of a set of brackets with fixed angular momenta.

Restrictions are given by the size of the core storage assigned to dimensioned quantities. The present version allows the computation of oscillator brackets with max(l,L,l1,l2) = 13 and max(n+N,n1+n2) = 32.

Unusual features:
Double precision REAL*8 arithmetic is used on computers with 32 bit words.

Running time:
Roughly 100 brackets per second on the IBM 370/135 computer.