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arXiv 0705.3965nucl-th
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低能强子的介质内核相互作用

In-medium nuclear interactions of low-energy hadrons

E. Friedman, A. Gal

摘要:

本文综述了近十年来在奇异原子和一些相关低能反应研究方面的实验和理论进展,以便提供从密度到中心核密度的广泛范围内介质中强子-核子t矩阵的信息。特别地,我们回顾了在致密核物质中部分恢复手征对称性的π原子深束缚态和相关证据。基于强核吸收的物理学,我们提出了反K介子和反质子的相对窄的深束缚原子态的情况。综述了近年来关于反K介子核深束缚态信号的实验建议,讨论了计算反K介子核束缚能、束缚宽度和束缚密度的动力学模型。讨论了K介子、反质子和σ超子的低能介质相互作用的特点,并对实验研究级联原子的建议进行了评述。

英文摘要:

Experimental and theoretical developments of the last decade in the study of exotic atoms and some related low-energy reactions are reviewed, in order to provide information on the in-medium hadron-nucleon t matrix over a wide range of densities up to central nuclear densities. In particular, we review pionic deeply bound atomic states and related evidence for partial restoration of chiral symmetry in dense nuclear matter. The case for relatively narrow deeply bound atomic states for antikaons and antiprotons is made, based on the physics of strong nuclear absorption. Recent experimental suggestions for signals of antikaon-nuclear deeply bound states are reviewed, and dynamical models for calculating binding energies, widths and densities of antikaon nuclear states are discussed. Specific features of low-energy in-medium interactions of kaons, antiprotons and of Sigma hyperons are discussed, and suggestions to study experimentally Cascade atoms are reviewed.

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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