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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Online Access: | https://doi.org/10.1051/epjconf/201819200019 |
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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 |
_version_ |
1721234453293957120 |