etermination of neutron-skin thickness using configurational information entropy

Configurational information entropy (CIE) theory was employed to determine the neutron skin thickness ofneutron-rich calcium isotopes. The nuclear density distributions and fragment cross-sections in 350 MeV/u40060Ca + 9Be projectile fragmentation reactions were calculated using a modified statistical abrasion-ablationmodel. CIE quantities were determined from the nuclear density, isotopic, mass, and charge distributions.The linear correlations between the CIE determined using the isotopic, mass, and charge distributions and theneutron skin thickness of the projectile nucleus show that CIE provides new methods to extract the neutron skinthickness of neutron-rich nuclei.