Recently observed charge radius anomaly in neon isotopes

Abstract

The recent isotopic shift measurements for the chain of neon isotopes have revealed a rich structural information and very interesting anomalous behavior of the charge radii with neutron number. Here we study the systematics of the charge radii of neon isotopes within the relativistic mean field (RMF) framework. The pairing correlations are incorporated by simple constant gap approximation as well as self-consistently through the Bogoliubov transforms employing in the pairing channel the finite range Gogny-DIS or the density dependent zero range interaction. It is observed that the RMF in the axially deformed oscillator basis successfully explains the observed anomaly in the charge radii of neon isotopes.