Odd-even staggering of reaction cross sections for 22,23,24O isotopes

TL;DR

This paper analyzes the odd-even staggering of reaction cross sections for oxygen isotopes, linking experimental data with theoretical models to estimate neutron separation energy and discussing energy dependence.

Contribution

It introduces a method to connect reaction cross section staggering with neutron separation energy, providing new insights into oxygen isotope structure.

Findings

Staggering parameter agrees with theoretical expectations for $^{23}$O.

Estimated neutron separation energy $S_n$=2.74$ extpm$0.12 MeV.

Discussed energy dependence of the staggering parameter.

Abstract

The interaction cross sections of $^{22,23}$O nuclei at 900 MeV/nucleon have been measured recently by Kanungo {\it et al.}. We show that the odd-even staggering parameter of interaction cross sections deduced from these new data agrees well with the theoretical systematics expected for the neutron separation energy of $S_n$=2.74$\pm$0.120 MeV for $^{23}$O. We also discuss briefly the energy dependence of the staggering parameter.