MENGONI.readme


        Gilbert-Cameron level densities by Mengoni and Nakajima
  (Provided by A.Ignatyuk, 29 October 1997, received from A. Mengoni)		

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Contents
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This file  contains the level density  parameter systematics as
constructed by  the HERMES code [1]. These parameters can  be useful
for  a description  of  the nuclear  level  densities at  excitation
energies above the neutron  binding energy. The corresponding formu-
las can be found in Ref. [1].
     

Format
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Each row contains the following data:

Z   :  Atomic number of the nucleus, 
Sym :  Element symbol of nucleus,
A   :  Mass number of nucleus, 
Io  :  Spin of the ground state for the corresponding target nucleus, 
P   :  Parity of the ground state for the corresponding target nucleus, 
Do  :  Average resonance spacing in keV,
erDo:  Uncertainty of Do in keV,
a   :  Level density parameter of the Fermi gas formula at the excitation 
       energy equal to the neutron binding energy  in 1/MeV,
-/+a:  Uncertainties of the level density parameter in 1/MeV,
a(*):  Asymptotic value of the level density parameter at high excitation
       energies in 1/MeV,
-/+a:  Uncertainties of the asymptotic level density parameter in 1/MeV,
Esh :  Shell correction defining the energy dependence of the level
       density parameter in MeV,          

Sn  :  Neutron binding energy of compound nucleus in MeV , 
del :  Pairing correction of the excitation energy in  MeV,
T   :  Nuclear temperature for the excitation energy equal to the neutron 
       binding energy  in MeV,
sigma**2  Spin cutoff parameter at this energy,
       

Reference
---------
1. A.Mengoni, Y.Nakajima. J. Nucl. Sci. Tech., 31 (1994) p.151.

   To obtain the HERMES code please communicate with Dr. A. Mengoni
   (mengoni@rikvax.riken.go.jp).