Abstract
The last decades of high energy physics revealed, that in ultra-relativistic ion-ion collisions, a strongly interacting quark gluon plasma (sQGP) is created. Varying the collision energy allows for the investigation of the phase diagram of QCD matter. The nature of the quark-hadron transition can be studied via femtoscopy, as the investigation of momentum correlations in heavy ion reactions reveals the space-time structure of the hadron production of the sQGP. Going beyond the Gaussian assumption the shape of this source may be described by Lévy distributions. In this paper we report on recent femtoscopic measurements of PHENIX, utilizing Lévy sources.
Highlights
Pioneering interferometry discoveries were made by R
In this paper we report on recent femtoscopic measurements of PHENIX, utilizing Levy sources
Hanbury Brown as he investigated correlations of intensity fluctuations with radio telescopes [1] at the Jordell Bank Observatory, where he was able to measure the angular diameter of two strong radiofrequency sources
Summary
Pioneering interferometry discoveries were made by R. These Hanbury Brown and Twiss (HBT) correlations have an important role in high energy physics, as they can be utilized to understand the femtometer scale space-time structure of the particle emitting source. The basic working principle of femtoscopy is, that if we define the probability density of particle creation at space-time point x and momentum p as S(r, p) (a.k.a. the source), the momentum correlation function, C(q, K) (where q is the pair momentum difference and K is the average momentum of the pair) can be measured and
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