Energy dependence of event-by-event kaon fluctuation in Au + Au collisions at \(\sqrt {^SNN} \) = 19.6–200 GeV—a simulated study

Abstract

A detailed study of energy dependence of event-by-event pseudorapidity fluctuations of the produced kaons in Au + Au collisions at \(\sqrt {^SNN} \) = 19.6–200 GeV in terms of the Φ measure has been carried out in the framework of the UrQMD model. The study of event-by-event kaon fluctuation in pseudorapidity space reveals energy dependence. It has been seen that as energy increases event-by-event fluctuation increases for both positive and negative kaons. Moreover, the positive kaons show larger event-by-event fluctuations than the negative kaons.