论文标题
异常引起的手性混合在寒冷和密集的物质中
Anomaly-induced Chiral Mixing in Cold and Dense Matter
论文作者
论文摘要
我们在有限密度和温度下在平均伴侣之间存在新型混合的情况下，在有限的密度和温度下构建光谱函数，这是由Baryon密度通过Wess-Zumino-onginten动作引起的。作为中等内部扩展的主要起源，包括一系列与媒介媒介相结合的重子共振，以及由于Kaplan-Nelson术语而引起的Kaons和Anti-Kaons的修改。结果表明，即使有扩展效应，矢量光谱也表现出相当大的手性对称性恢复的特征，这要归功于手性混合，这取决于矢量介子带来的三摩米达。这些光谱函数用于计算Lepton对的综合生产率，并且在量化标志时，讨论了由于手性对称性恢复而导致的载体 - 梅森质量的适当归纳和矢量 - 梅森质量的潜在减少。
We construct the spectral functions for light vector mesons at finite density and temperature in the presence of a novel mixing between parity partners, induced by baryon density via the Wess-Zumino-Witten action. As the main origin of in-medium broadening, a set of baryon resonances that strongly couple to the vector mesons and the modifications of kaons and anti-kaons due to the Kaplan-Nelson term are included. It is shown that the vector spectra, even with the broadening effects, exhibit sizable signatures of chiral symmetry restoration thanks to the chiral mixing depending on three-momenta carried by the vector mesons. Those spectral functions are used to calculate the integrated production rates of lepton pairs, and a proper binning in momenta and potential decrease in the vector-meson masses due to chiral symmetry restoration are discussed in quantifying the signatures.
