Kaon femtoscopy with Lévy-stable sources from $\sqrt{s_{{}_{\mathrm{NN}}}}=200$ GeV $\mathrm{Au}+\mathrm{Au}$ collisions at RHIC

Abstract

Femtoscopy has the capacity to probe the space-time geometry of the particle-emitting source in heavy-ion collisions. In particular, femtoscopy of like-sign kaon-pairs may shed light on the origin of non-Gaussianity of the spatial emission probability density. The momentum-correlations between like-sign kaon-pairs are, hence, measured in data recorded by the STAR experiment, from $\sqrt{s_{{}_{\mathrm{NN}}}}=200$ GeV $\mathrm{Au}+\mathrm{Au}$ collisions at RHIC, BNL. Preliminary results hint at the, possible, existence of non-Gaussian, Lévy-stable sources; and signal the, likely, presence of an anomalous diffusion process; for the identically-charged kaon-pairs so produced. More statistically significant studies, at lower centre-of-mass energies, may contribute to the search for the critical end point of QCD as well.

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• Source breakup dynamics in Au+Au Collisions at sqrt(s_NN)=200 GeV via three-dimensional two-pion source imaging
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Cited by in corpus (4)

• Imaging Freeze-out Sources and Extracting Strong Interaction Parameters in Relativistic Heavy-Ion Collisions
• Coulomb Corrections for Bose-Einstein Correlations from One- And Three-Dimensional Lévy-Type Source Functions
• Femtoscopy with Lévy sources from SPS through RHIC to LHC
• Lévy walk of pions in heavy-ion collisions