OBNINSK_BCS.readme
Total level densities for generalized superfluid model: Utility code
(Provided by A. V. Ignatyuk, 29 October 1997)
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Utility code
------------
Code for the level density calculations in the framework of the Generalized
Superfluid Model (extension of the Barden-Cooper-Schiefer model). The code
represents utility that can be used to calculate actual level densities
(for parameters see also file obninsk_bcs.dat, directory *.RECOMMENDED).
Input/output
------------
The code can be run on a PC with the following command:
OBNINSK_BCS.EXE < BCS.INP > BCS.OUT
Input data, BCS.INP, are written in the FORMAT(2X,2(F5.1,1X),8(F7.3,1X))
and include the following values:
Z : Atomic number of compound nucleus,
A : Mass number of compound nucleus,
AAS : Asymptotic value of the level density parameter in 1/MeV, which
is usually close to a-as=.073*A +.115 A**.6666,
D0 : Energy gap parameter in MeV, which is approximately equal to
12/A**.3333,
D1 : Effective shift of the excitation energy in MeV,
OM : Energy of quadrupole vibrations in MeV, which defines the vibrational
enhancement of the nuclear level density,
BET : Parameter of quadrupole deformation that defines the rotational
enhancement of the nuclear level density,
USTEP and UMAX : Energy interval and maximal excitation energy in MeV,
for which the level density calculations will be done
BCS.OUT repeats the input data + the following information:
the excitation energy, LOG-10 of the state and level densities, the spin
cutoff parameter, the temperature of excited nucleus, the coefficients of
vibrational and rotational enhancement of the level density. An example of
BCS.OUT is given below:
28.0 56.0 4.640 -7.210 1.600 .300 .850 .000 .500 10.000
ENERGIES LOG.STATES & LEVELS SIGMA2 TEMPER QVIBR QROT
.500 1.171 .129 1.279 .725 6.253 1.000
1.000 2.147 .862 2.078 .844 9.289 1.000
1.500 2.935 1.497 2.825 .968 13.320 1.000
2.000 3.404 1.869 3.430 1.109 18.515 1.000
2.500 3.798 2.188 3.987 1.222 22.508 1.000
3.000 4.143 2.471 4.511 1.316 25.217 1.000
3.500 4.456 2.731 5.012 1.398 26.820 1.000
4.000 4.747 2.976 5.495 1.469 27.565 1.000
4.500 5.023 3.212 5.961 1.534 27.686 1.000
5.000 5.290 3.441 6.415 1.592 27.374 1.000
5.500 5.549 3.667 6.857 1.645 26.774 1.000
6.000 5.802 3.890 7.289 1.694 25.992 1.000
6.500 6.052 4.112 7.711 1.739 25.104 1.000
7.000 6.299 4.332 8.125 1.782 24.162 1.000
7.500 6.542 4.552 8.531 1.823 23.202 1.000
8.000 6.784 4.770 8.929 1.861 22.248 1.000
8.500 7.024 4.989 9.320 1.898 21.316 1.000
9.000 7.262 5.206 9.704 1.932 20.416 1.000
9.500 7.498 5.424 10.082 1.966 19.554 1.000
10.000 7.733 5.640 10.454 1.998 18.734 1.000
Stop - Program terminated.