Lévy Analysis of HBT Correlation Functions in                                                                                                 s                                            N                       N                                                                          =                                                 62 GeV and 39 GeV Au + Au Collisions at PHENIX

Kincses, D.

doi:10.3390/universe4010011

Cited by 6 publications

(5 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, it was clear from previously published analyses (see Refs. [10,[27][28][29][30][31][32]) that the Lévy-scale R exhibits a similar trend as its Gaussian counterpart, namely, it decreases with m T . In the case of a Gaussian source, hydrodynamic models predict a linear scaling for its inverse square [33][34][35]:…”

Section: Resultsmentioning

confidence: 78%

Charged Kaon Femtoscopy with Lévy Sources in sNN = 200 GeV Au+Au Collisions at PHENIX

Kovács

2023

Universe

View full text Add to dashboard Cite

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.

show abstract

Section: Resultsmentioning

confidence: 78%

Charged Kaon Femtoscopy with Lévy Sources in sNN = 200 GeV Au+Au Collisions at PHENIX

Kovács

2023

Universe

View full text Add to dashboard Cite

show abstract

“…In addition to track matching cuts, we applied pair cuts to reduce the effect of track merging and splitting, as detailed in Refs. [17,[21][22][23][24].…”

Section: Two-pion Femtoscopy In 200 Gev Au+au Collisionsmentioning

confidence: 99%

“…where q is the momentum difference, R is the K dependent source size (or its length of homogeneity), and α is the Lévy-stability exponent, resulting from the anomalous diffusion, and probably also depending on K. The α parameter is interesting also because it may be connected to the critical exponent η, appearing in the power-law exponent of the spatial correlation function at the critical point [20]. Recently, Lévy sources have been utilized [17,[21][22][23][24] to describe the particle emitting source. In present paper we report on the recent Lévy femtoscopy results of the PHENIX experiment.…”

Section: Introductionmentioning

confidence: 99%

Two- and three-pion Lévy femtoscopy with PHENIX

Csanád

2018

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

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.

show abstract

“…Nevertheless, clear indications exist, that the real shape of the correlation function is not Gaussian, as we could also see in a few talks at the 2018 Zimányi School (see e.g., [6][7][8]). The shape is often better reproduced by a fit with Lévy stable distribution [9].…”

Section: Introductionmentioning

confidence: 99%

Averaging and the Shape of the Correlation Function

2019

View full text Add to dashboard Cite

A brief pedagogical introduction to correlation femtoscopy is given. We then focus on the shape of the correlation function and discuss the possible reasons for its departure from the Gaussian form and better reproduction with a Lévy stable distribution. With the help of Monte Carlo simulations based on asymmetric extension of the Blast-Wave model with resonances we demonstrate possible influence of averaging over many events and integrating over wide momentum bins on the shape of the correlation function. We also show that the shape is strongly influenced by the use of the one-dimensional parametrisation in the q i n v variable.

show abstract

Lévy Analysis of HBT Correlation Functions in s N N = 62 GeV and 39 GeV Au + Au Collisions at PHENIX

Cited by 6 publications

References 24 publications

Charged Kaon Femtoscopy with Lévy Sources in sNN = 200 GeV Au+Au Collisions at PHENIX

Charged Kaon Femtoscopy with Lévy Sources in sNN = 200 GeV Au+Au Collisions at PHENIX

Two- and three-pion Lévy femtoscopy with PHENIX

Averaging and the Shape of the Correlation Function

Contact Info

Product

Resources

About