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Woods Saxon Cranking

There are a family of programs to calculate single-particle/quasiparticle energies as a function of rotation, deformation (Nilsson diagram), etc..., based on a universal, triaxial Woods-Saxon potential [1, 2]. The VAX sources were obtained from the Risø theory workshop (1992). The Woods-Saxon programs (large FORTRAN codes) run on the Suns. They are more temperamental on the Linux machines. Good luck!

The following command files run several programs sequentially. Binary data files, e.g.``swgamma.dat'', are used to pass information between the programs. Readable files, e.g. ``swgamma.out'', are also produced containing lots of information. All these files are large and should usually be deleted. Graphical output is produced in pssketch format files. Slopes (alignment) and curvatures ( contribution) of the routhians are also output.

The pairing interaction can be modelled is several ways.

e´ vs. omega (beta2, beta4, gamma)

e´ vs. omega (beta2, beta4, beta6)

e´ vs. omega (beta2, beta3, beta4)

E vs. omega (beta2, beta4, gamma)

E vs. omega (beta2, beta4, beta6)

E vs. beta2 (Nilsson diagram)

Source codes and pssketch plotting program.

The Total Routhian Surface (TRS) codes also use a Woods-Saxon potential. [----]

Modified Harmonic Oscillator Cranking

We also have the Cranked Shell Model (CSM) of Bengtsson, Frauendorf, and Leander [3], based on a modified oscillator potential (, , ). Everything you ever need to know can be found in Ref. [4]. Several different , Nilsson parameter sets can be used for the potential. This version originally came from Stony Brook as a self-contained program.

This code is run by typing ``csm'' and answering the questions, followed by ``csm2psk'' to convert the output to pssketch format. An example input file is given below and discussed in more detail here.


e´ vs. omega (beta2, beta4, gamma)

Source codes and pssketch plotting program. [----]

Experimental Alignments and Routhians

The program align can be used to extract experimental quantities from level schemes which can be compared to theory. [----]

Ratios of reduced transition probabilities

ratios of reduced transition probabilities may be readily extracted from experimental gamma-ray branching ratios of competing =1 and =2 transitions within strongly coupled bands and are extremely useful in assigning band configurations. The program bm1be2 can be used to calculate ratios of reduced transition probabilities for multi-quasiparticle configurations.



W. Nazarewicz, J. Dudek, R. Bengtsson, and I. Ragnarsson, Nucl. Phys. A435, 397 (1985).

S. Cwiok, J Dudek, W. Nazarewicz, W. Skalski, and T. Werner, Comp. Phys. Comm. 46, 379 (1987).

R. Bengtsson and S. Frauendorf, Nucl. Phys. A327, 139 (1979).

R. Bengtsson, S. Frauendorf, and F.R. May, At. Data Nucl. Data Tables 35, 15 (1986).


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