Details

Autor(en) / Beteiligte

• Xu, Kun
• Li, Zhibin
• Huang, Mei
• Corianò, C.
• Creanza, D.M.
• Colangelo, P.
• Nappi, E.
• Bruno, G.E.
• Chiodini, G.
• De Fazio, F.

Titel

QCD critical end point from a realistic PNJL model

Ist Teil von

• EPJ Web of Conferences, 2018, Vol.192, p.19

Ort / Verlag

Les Ulis: EDP Sciences

Erscheinungsjahr

2018

Link zum Volltext

Quelle

Free E-Journal (出版社公開部分のみ）

Beschreibungen/Notizen

• 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 ( μ E B = 720MeV; T E = 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 kσ 2 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 kσ 2 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.