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Manuscript Title: An integral equation program to calculate radial wave functions and scattering phase shifts of short-range local interactions.
Authors: M.S. Stern
Program title: SCHRODINTEQN
Catalogue identifier: AAIE_v1_0
Distribution format: gz
Journal reference: Comput. Phys. Commun. 17(1979)365
Programming language: Fortran.
Computer: ICL 1906S.
Operating system: GEORGE 4.
RAM: 27K words
Word size: 48
Keywords: Atomic physics, Nuclear physics, Local interaction, Low energy, Differential equation, Schrodinger equation, Central potential, General purpose, Quantum mechanical Scattering, Phase shift, Equation integral.
Classification: 4.3.

Nature of problem:
Determination of radial wave functions and scattering phase shifts of short-range local interactions for any value of the orbital angular momentum l(=0,1,2,3,.....) over any (user) specified range of positive energies.

Unusual features:
Program is in single precision form. Users of computers with short wordlengths are advised to convert the program to double precision form.

Running time:
To set up and solve the equations of the method with n quadrature points, per energy value (using optimizing FORTRAN compiler on ICL 1906S):
                                                                 
 ----------------------------------------------------------              
 l            Approximate time (s)                                       
              ---------------------------------------------              
              n = 20           n = 40            n = 50                  
 ----------------------------------------------------------              
 0            0.1              0.6               1.1                     
 1            0.2              0.8               1.4                     
 2            0.2              1.1               1.8                     
 3            0.3              1.2               1.9                     
 ----------------------------------------------------------