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arXiv 0812.1702nucl-exnucl-th
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核介质中的强子性质

Hadron properties in the nuclear medium

Ryugo S. Hayano, Tetsuo Hatsuda

摘要:

QCD真空显示了手征对称性的动力学破缺。在热/密QCD介质中,手征序参量$ < \bar q q > $有望随介质的温度$T$和密度$ρ$而变化,其实验检测是现代强子物理的主要挑战之一。本文讨论了与手征对称性部分恢复有关的介质中强子谱的理论期望和实验现状,重点是近基态核中产生的介子性质的测量。

英文摘要:

The QCD vacuum shows the dynamical breaking of chiral symmetry. In the hot/dense QCD medium, the chiral order parameter such as $ < \bar q q > $ is expected to change as function of temperature $T$ and density $ρ$ of the medium, and its experimental detection is one of the main challenges in modern hadron physics. In this article, we discuss theoretical expectations for the in-medium hadron spectra associated with partial restoration of chiral symmetry and the current status of experiments with an emphasis on the measurements of properties of mesons produced in near-ground-state nuclei.

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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