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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:
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.