(a) top: measured and HIJING (generator level) predicted values of $\nu_{\rm dyn}[\rm K_{\rm S}^{0},\rm K^{\pm}]$ scaled by $\alpha$ as a function of collision centrality for various transverse momentum interval of charged kaons. HIJING predicted scaled values are multiplied by a factor of 5 to approximately match the measured values in most peripheral collisions; middle: ratio of data for various transverse momentum interval as a function of centrality; bottom: ratio of HIJING for various transverse momentum interval as a function of centrality.