Particle Physics Seminar: Relative Yield Fluctuations of Neutral and Charged Kaons in Pb-Pb Collisions at LHC

Zoom: https://us02web.zoom.us/j/83283854432?pwd=VXdmZ1lTbkl4SEZnVndqcUZNQWg0UT09&from=msft

Abstract:

The first measurements of event-by-event correlated fluctuations of neutral and charged kaons are reported in Pb-Pb collisions at \sqrt{s_{\rm NN}} = 2.76 TeV, which are proposed to be related to isospin fluctuations in the kaon sector. These dynamic fluctuations affect the mechanism of correlated productions of neutral and charged kaons in heavy-ion collisions. In this work we have used the robust statistical observable, \nu_{dyn} to study the dynamical fluctuations in strangeness sector using charged and neutral kaons. A statistically significant signal of dynamical fluctuations is observed in the data which is underestimated by HIJING and AMPT model predictions, when moments of neutral and charged kaons are calculated as a function of centrality. We observed that Ks0-K± fluctuations is not dominated by the correlation from particle decay like K+-K-.

Seminar Organizers: Prof. Erez Etzion & Dr. Liron Barak