Charged Kaon Femtoscopy with Lévy Sources in <inline-formula><math display="inline"><semantics><msqrt><msub><mi>s</mi><mi>NN</mi></msub></msqrt></semantics></math></inline-formula> = 200 GeV Au+Au Collisions at PHENIX

Abstract

The PHENIX experiment measured two-particle Bose–Einstein quantum-statistical correlations of charged kaons in Au+Au collisions at sNN = 200 GeV. The correlation functions are parametrized assuming that the source emitting the particles has a Lévy shape, characterized by the Lévy exponent α and the Lévy scale R. By introducing the intercept parameter λ, we account for the core–halo fraction. The parameters are investigated as a function of transverse mass. The comparison of the parameters measured for kaon–kaon with those measured from pion–pion correlation may clarify the connection of Lévy parameters to physical processes.

Keywords

• heavy ions
• quark–gluon plasma
• femtoscopy
• Lévy HBT