13-19 May 2018
Venice, Italy
Europe/Zurich timezone
The organisers warmly thank all participants for such a lively QM2018! See you in China in 2019!

PHENIX results on centrality and collision energy dependent Lévy analysis of HBT correlation functions

15 May 2018, 17:00
2h 40m
First floor and third floor (Palazzo del Casinò)

First floor and third floor

Palazzo del Casinò

Poster Correlations and fluctuations Poster Session

Speaker

Dániel Kincses (Eötvös Loránd University)

Description

Varying the center of mass energy and the centrality in heavy-ion collisions allows us to investigate different regions of the QCD phase diagram. In our latest measurements at the PHENIX experiment at RHIC, we utilize Lévy-type sources to describe the measured HBT correlation functions at different beam energies and centralities. The different source parameters can yield different information about the source. The scale parameter $R$ is related to the physical size of the source, while the $\lambda$ parameter (the strength of the correlation function) may provide an indirect measurement of in-medium mass modification. The index of stability $\alpha$ is related to one of the critical exponents (the so-called correlation exponent $\eta$), so it may yield information on the nature of the quark-hadron phase transition. In this poster we report the current status of the analysis of the centrality and beam energy dependence of Lévy source parameters in Au+Au collisions from $\sqrt{s_{NN}}=15$ GeV to $\sqrt{s_{NN}}=200$ GeV.

Centralised submission by Collaboration Presenter name already specified
Collaboration PHENIX
Content type Experiment

Primary author

Dániel Kincses (Eötvös Loránd University)

Presentation Materials

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