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arXiv 2412.19982hep-thhep-phnucl-th
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有限温度和密度下具有高斯涨落的核子性质

The nucleon properties in finite temperature and density with Gaussian fluctuations

Peixin Weng, Bingtao Li, Yiming Lyu, Song Shu, Hui Zhang

AI总结:

本研究利用含高斯涨落的两味夸克介子模型,发现核子质量随温度和密度呈非单调变化,且核子半径增大,为极端条件下核子性质研究提供新见解。

摘要:

我们使用具有高斯涨落的两味夸克介子模型,在平均场近似之外研究了有限温度和密度下核子的性质。我们的发现表明,高斯涨落导致核子质量随温度和密度呈现非单调行为,这可能对相对论重离子碰撞的强子化过程研究起到重要作用。此外,我们观察到高斯涨落导致核子半径增大,暗示存在一种类似于金-溴苯-二氧化硅体系中观察到的卡西米尔效应的有效排斥力。这项研究为温度、密度和量子涨落如何在极端条件下影响核子的结构和性质提供了新的见解。

英文摘要:

We investigate the properties of nucleons at finite temperature and density using a two-flavor quark meson model with Gaussian fluctuations that extend beyond the mean-field approximation. Our findings suggest that Gaussian fluctuations lead to a non-monotonic behavior of the nucleon mass as a function of temperature and density, which may play an important role in the study of the hadronization process of relativistic heavy-ion collisions. Moreover, we observe an increase in the nucleon radius due to Gaussian fluctuations, suggesting an effective repulsive force akin to the Casimir effect, as observed in the gold-bromobenzene-silica system. This study offers new insights into how temperature, density, and quantum fluctuations affect the structure and properties of nucleons under extreme conditions.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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