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arXiv 0904.2089nucl-thhep-phnucl-ex
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作为QCD相结构探针的守恒电荷三阶矩

Third moments of conserved charges as probes of QCD phase structure

Masayuki Asakawa, Shinji Ejiri, Masakiyo Kitazawa

摘要:

守恒电荷的三阶矩、重子数、电荷数、能量以及它们的混合矩比以前提出的涨落观测量和高阶矩携带了更多的关于QCD相边界附近态的信息。特别是,它们的符号提供了大量关于相对论性重离子碰撞中产生的态在温度和重子化学势平面上的位置的信息。我们用一个有效的模型来证明这一点。

英文摘要:

The third moments of conserved charges, the baryon and electric charge numbers, and energy, as well as their mixed moments, carry more information on the state around the QCD phase boundary than previously proposed fluctuation observables and higher order moments. In particular, their signs give plenty of information on the location of the state created in relativistic heavy ion collisions in the temperature and baryon chemical potential plane. We demonstrate this with an effective model.

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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