用于热密强子物质的中等修正热介子扩展手征平均场模型
An Extended Chiral Mean-Field Model with Medium-Modified Thermal Mesons for Hot and Dense Hadronic Matter
浏览论文内容
中文总结 AI 辅助
本文扩展手征平均场模型，纳入介质修正热介子质量，改进状态方程，使热力学观测量在宽温密范围内与格点QCD结果更一致。
中文摘要 AI 辅助
在本次会议论文中，我们回顾了手征平均场（CMF）模型的一种扩展，该扩展一致地引入了具有自洽中等质量的热介子相互作用。在该方法中，赝标量介子和矢量介子的中等质量分别通过拉格朗日量中的显式手征对称破缺项和矢量相互作用项来评估，然后应用平均场近似。这些介质修正的介子性质为CMF运动方程引入了额外的反馈，从而得到修正的状态方程。通过将强子模型预测与近期格点QCD数据以及其他强子描述（如强子共振气体模型）进行比较，分析了这一改进的影响。具有改进介子处理（mCMF）的修正CMF框架，在宽温度范围和重子化学势范围内，与格点QCD结果在热力学观测量上表现出增强的一致性。
英文摘要
In this conference proceeding we review an extension of the Chiral Mean Field (CMF) model that consistently incorporates interacting thermal mesons with self-consistent in-medium masses. In this approach, the in-medium masses of pseudoscalar and vector mesons are evaluated through the explicit chiral symmetry-breaking and vector-interaction terms in the Lagrangian respectively, before applying the mean-field approximation. These medium-modified meson properties introduce additional feedback into the CMF equations of motion, leading to a revised equation of state. The impact of this refinement is analyzed by comparing the hadronic model predictions with recent lattice QCD data and other hadronic descriptions, such as the hadron resonance gas model. The modified CMF framework, featuring an improved meson treatment (mCMF),demonstrates enhanced consistency with lattice-QCD results for thermodynamic observables across a broad range of temperatures and baryon chemical potentials.
发表机构
- Center for Nuclear Research, Department of Physics, Kent State University（肯特州立大学物理系核研究中心）
- Punjab, 144216, India（印度旁遮普邦）
- Department of Physics, University of Houston（休斯顿大学物理系）
机构由 AI 辅助整理，请以论文原文为准。
