Probing the nuclear liquid-gas phase transition with isospin correlations

被引：0

作者：

Marczenko, Michal ^{[1
]}

Redlich, Krzysztof ^{[2
,3
]}

Sasaki, Chihiro ^{[2
,4
]}

机构：

[1] Univ Wroclaw, Ctr Simulat Superdense Fluids, Incubator Sci Excellence, plac Maksa Borna 9, PL-50204 Wroclaw, Poland

[2] Univ Wroclaw, Inst Theoret Phys, plac Maksa Borna 9, PL-50204 Wroclaw, Poland

[3] Polish Acad Sci PAN, Podwale 75, PL-00049 Warsaw, Poland

[4] Hiroshima Univ, Int Inst Sustainabil Knotted Chiral Meta Matter WP, Higashihiroshima, Hiroshima 7398526, Japan

来源：

PHYSICAL REVIEW C | 2025年 / 111卷 / 06期

关键词：

CHIRAL-SYMMETRY; MODEL; COLLISIONS;

D O I：

10.1103/4ccc-j338

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

We investigate the fluctuations of the net-baryon number near the critical point of the liquid-gas phase transition. We use the parity doublet model in the mean-field approximation fixed to the zero-temperature properties of nuclear matter to account for critical behavior. We explicitly calculate the fluctuations of the net-proton and net-neutron numbers as well as their correlations in the isospin-symmetric matter. We focus on the qualitative properties and systematics of the first- to fourth-order susceptibilities and their ratios. We demonstrate that the fluctuations of net-proton number do not reflect the total net-baryon number fluctuations in the vicinity of the nuclear liquid-gas phase transition. We also study the behavior of the baryon and proton number factorial cumulants. We highlight the importance of the nontrivial correlations between protons and neutrons.

引用

页数：10

共 69 条

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