Lévy Femtoscopy with PHENIX at RHIC

In this paper we present the measurement of charged pion two-particle femtoscopic correlation functions in s N N = 200 GeV Au + Au collisions in 31 average transverse mass bins, separately for positive and negative pion pairs. Lévy-shaped source distributions yield a statistically acce...

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Main Author: Máté Csanád
Format: Article
Language:English
Published: MDPI AG 2017-12-01
Series:Universe
Subjects:
Online Access:https://www.mdpi.com/2218-1997/3/4/85
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spelling doaj-8f896a141deb48628e9981391a011aac2020-11-25T00:17:04ZengMDPI AGUniverse2218-19972017-12-01348510.3390/universe3040085universe3040085Lévy Femtoscopy with PHENIX at RHICMáté Csanád0Eötvös Loránd University, Department of Atomic Physics, Pázmány P. s. 1/A, H-1117 Budapest, HungaryIn this paper we present the measurement of charged pion two-particle femtoscopic correlation functions in s N N = 200 GeV Au + Au collisions in 31 average transverse mass bins, separately for positive and negative pion pairs. Lévy-shaped source distributions yield a statistically acceptable description of the measured correlation functions, with three physical parameters: correlation strength parameter λ , Lévy index α and Lévy scale parameter R. The transverse mass dependence of these Lévy parameters is then investigated. Their physical interpretation is also discussed, and the appearance of a new scaling variable is observed.https://www.mdpi.com/2218-1997/3/4/85RHICPHENIXfemtoscopyBose-Einstein correlationsLévy distributionanomalous diffusioncritical pointin-medium mass modification
collection DOAJ
language English
format Article
sources DOAJ
author Máté Csanád
spellingShingle Máté Csanád
Lévy Femtoscopy with PHENIX at RHIC
Universe
RHIC
PHENIX
femtoscopy
Bose-Einstein correlations
Lévy distribution
anomalous diffusion
critical point
in-medium mass modification
author_facet Máté Csanád
author_sort Máté Csanád
title Lévy Femtoscopy with PHENIX at RHIC
title_short Lévy Femtoscopy with PHENIX at RHIC
title_full Lévy Femtoscopy with PHENIX at RHIC
title_fullStr Lévy Femtoscopy with PHENIX at RHIC
title_full_unstemmed Lévy Femtoscopy with PHENIX at RHIC
title_sort lévy femtoscopy with phenix at rhic
publisher MDPI AG
series Universe
issn 2218-1997
publishDate 2017-12-01
description In this paper we present the measurement of charged pion two-particle femtoscopic correlation functions in s N N = 200 GeV Au + Au collisions in 31 average transverse mass bins, separately for positive and negative pion pairs. Lévy-shaped source distributions yield a statistically acceptable description of the measured correlation functions, with three physical parameters: correlation strength parameter λ , Lévy index α and Lévy scale parameter R. The transverse mass dependence of these Lévy parameters is then investigated. Their physical interpretation is also discussed, and the appearance of a new scaling variable is observed.
topic RHIC
PHENIX
femtoscopy
Bose-Einstein correlations
Lévy distribution
anomalous diffusion
critical point
in-medium mass modification
url https://www.mdpi.com/2218-1997/3/4/85
work_keys_str_mv AT matecsanad levyfemtoscopywithphenixatrhic
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