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arXiv 1202.3238nucl-thhep-ph
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高温致密核物质中的强子产生

Hadron production in hot and dense nuclear matter

A. Lavagno

摘要:

本文利用一个有效的相对论平均场模型,考虑了重子的八重态、δ-等压线自由度和最轻的赝标介子和矢量介子,研究了在有限温度和重子密度下的强子产生.这些最后的粒子被认为是在所谓的单体贡献,考虑到有效的化学势和质量取决于重子之间的自洽相互作用。分析是通过要求吉布斯条件下的整体守恒的重子数,电荷分数和零净奇异。在此背景下,我们研究了不同粒子-反粒子比和奇异产生的行为。

英文摘要:

We study the hadron production at finite values of temperature and baryon density by means of an effective relativistic mean-field model with the inclusion of the full octet of baryons, the Delta-isobar degrees of freedom and the lightest pseudoscalar and vector mesons. These last particles are considered in the so-called one-body contribution, taking into account of an effective chemical potential and mass depending on the self-consistent interaction between baryons. The analysis is performed by requiring the Gibbs conditions on the global conservation of baryon number, electric charge fraction and zero net strangeness. In this context, we study the behavior of different particle-antiparticle ratios and strangeness production.

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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