QCD critical end point from a realistic PNJL model

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 (μEB = 720MeV; TE = 93MeV). The extracted freeze-out line from heavy ion collisions...

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Main Authors:	Xu Kun, Li Zhibin, Huang Mei
Format:	Article
Language:	English
Published:	EDP Sciences 2018-01-01
Series:	EPJ Web of Conferences
Online Access:	https://doi.org/10.1051/epjconf/201819200019

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record_format	Article
spelling	doaj-8fdcf185794a4485924b05b8be9915622021-08-02T09:46:55ZengEDP SciencesEPJ Web of Conferences2100-014X2018-01-011920001910.1051/epjconf/201819200019epjconf_qcd2018_00019QCD critical end point from a realistic PNJL modelXu KunLi ZhibinHuang MeiWith 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 (μEB = 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.https://doi.org/10.1051/epjconf/201819200019
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Xu Kun Li Zhibin Huang Mei
spellingShingle	Xu Kun Li Zhibin Huang Mei QCD critical end point from a realistic PNJL model EPJ Web of Conferences
author_facet	Xu Kun Li Zhibin Huang Mei
author_sort	Xu Kun
title	QCD critical end point from a realistic PNJL model
title_short	QCD critical end point from a realistic PNJL model
title_full	QCD critical end point from a realistic PNJL model
title_fullStr	QCD critical end point from a realistic PNJL model
title_full_unstemmed	QCD critical end point from a realistic PNJL model
title_sort	qcd critical end point from a realistic pnjl model
publisher	EDP Sciences
series	EPJ Web of Conferences
issn	2100-014X
publishDate	2018-01-01
description	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 (μEB = 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.
url	https://doi.org/10.1051/epjconf/201819200019
work_keys_str_mv	AT xukun qcdcriticalendpointfromarealisticpnjlmodel AT lizhibin qcdcriticalendpointfromarealisticpnjlmodel AT huangmei qcdcriticalendpointfromarealisticpnjlmodel
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QCD critical end point from a realistic PNJL model

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