Coefficients and terms of the liquid drop model and mass formula
  The coefficients of different combinations of terms of the liquid drop model have been determined by a least square fitting procedure to the experimental atomic masses. The nuclear masses can also be reproduced using a Coulomb radius taking into account the increase of the ratio $R\_0/A^{1/3}$ with increasing mass, the fitted surface energy coefficient remaining around 18 MeV. 
G. Royer (SUBATECH), C. Gautier (SUBATECH)