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arXiv 1507.06398nucl-thhep-lat
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Hagedorn质谱与格点量子色动力学结果的匹配

Matching the Hagedorn mass spectrum with Lattice QCD results

Pok Man Lo, Michał Marczenko, Krzysztof Redlich, Chihiro Sasaki

摘要:

基于有限温度下格点量子色动力学(LQCD)的最新结果,我们讨论了在离散和连续质量谱的强子共振气体(HRG)框架下对QCD强子相的模拟。我们专注于保守电荷的波动,并展示了如何一个共同的极限温度可以用来约束Hagedorn指数质谱在不同部门的量子数,通过匹配的HRG和LQCD。对于奇异重子,提取的光谱与粒子数据组(PDG)列出的所有已知和预期的状态一致。然而,奇怪的介子部门,需要额外的国家在中间质量范围内超出了数据库中所体现的。

英文摘要:

Based on recent Lattice QCD (LQCD) results obtained at finite temperature, we discuss modeling of the hadronic phase of QCD in the framework of Hadron Resonance Gas (HRG) with discrete and continuous mass spectra. We focus on fluctuations of conserved charges, and show how a common limiting temperature can be used to constrain the Hagedorn exponential mass spectrum in different sectors of quantum number, through a matching of HRG and LQCD. For strange baryons, the extracted spectra are found to be consistent with all known and expected states listed by the Particle Data Group (PDG). The strange-mesonic sector, however, requires additional states in the intermediate mass range beyond that embodied in the database.

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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