Equation of state extracted from the root-mean-square-radius-isospin
  Experimental correlation between the rms nucleus charge radius and the neutron-proton asymmetry is discussed. Simple attempt of explanation of this correlation using a semi-empirical liquid drop model which takes into account nuclear compressibility, nuclear deformation and neutron skin effects is presented. It seems that such procedure could be used as a tool for determination of the nuclear equation of state. 
Z. Sosin