HIJING model  based calculations of the normalized second-order cumulants of net protons as a function of pseudorapidity window ($\Delta\eta$) (left) and ratio of third- to second-order cumulants (right) of net protons as a function of collision centrality at $\snn=5.02$ TeV. The results at the generated and reconstructed level are shown by the green closed and open circles, respectively. The error bars represent statistical uncertainties. The results after efficiency correction assuming binomial efficiency losses  are shown by black open squares.