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Qcd critical end point from a realistic pnjl model

  • Kun Xu*
  • , Zhibin Li
  • , Mei Huang
  • *Corresponding author for this work
  • CAS - Institute of High Energy Physics
  • University of Chinese Academy of Sciences

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

With parameters fixed by critical temperature and equation of state at zero baryon chemical potential, a realistic Polyakov-Nambu-Jona-Lasinio (rPNJL) model predicts a critical end point of chiral phase transition at (μE B = 720MeV; TE = 93MeV). The extracted freeze-out line from heavy ion collisions is close to the chiral phase transition boundary in the rPNJL model, and the kurtosis kσ2 of baryon number fluctuations from the rPNJL model along the experimental freeze-out line agrees well with the BES-I measurement. Our analysis shows that the dip structure of measured kσ2 is determined by the relationship between the freeze-out line and chiral phase transition line at low baryon density region, and the peak structure can be regarded as a clean signature for the existence of CEP.

Original languageEnglish
Title of host publicationQCD@Work 2018 - International Workshop on Quantum Chromodynamics - Theory and Experiment
EditorsGiuseppe E. Bruno, Eugenio Nappi, Pietro Colangelo, Donato M. Creanza, Gabriele Chiodini, Claudio Coriano, Fulvia De Fazio
PublisherEDP Sciences
ISBN (Electronic)9782759890613
DOIs
Publication statusPublished - 14 Nov 2018
Externally publishedYes
Event2018 International Workshop on Quantum Chromodynamics - Theory and Experiment, QCD@Work 2018 - Matera, Italy
Duration: 25 Jun 201828 Jun 2018

Publication series

NameEPJ Web of Conferences
Volume192
ISSN (Print)2101-6275
ISSN (Electronic)2100-014X

Conference

Conference2018 International Workshop on Quantum Chromodynamics - Theory and Experiment, QCD@Work 2018
Country/TerritoryItaly
CityMatera
Period25/06/1828/06/18

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