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首页> 外文期刊>Physical review, C >Balance of attractive and repulsive hadronic interactions: The influence of hadronic spectrum and excluded-volume effects on lattice thermodynamics, and consequences for experiments
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Balance of attractive and repulsive hadronic interactions: The influence of hadronic spectrum and excluded-volume effects on lattice thermodynamics, and consequences for experiments

机译:有吸引力和令人厌恶的强度相互作用的平衡:具有辐射光谱和排除对晶格热力学影响的影响,以及实验的后果

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摘要

Repulsive hadronic interactions play a relevant role in QCD dynamics, attractive ones being represented by resonance formation. In this study we propose different schemes in order to parameterize repulsive interactions, thus being able to extract effective sizes of hadrons from fits to lattice QCD simulations. We find that allowing a difference between the strange and light sectors, strange particles are systematically smaller than light ones with equal mass. The very simple implementation of repulsive interactions would in principle allow us to extract precise information about all hadronic species once corresponding lattice observables, sensitive to the species of interest, are provided. With the parametrization which best reproduces lattice data there is also a good description of experimental yields measured by the ALICE and STAR experiments.
机译:厌恶的辐射相互作用在QCD动态中发挥了相关的作用,具有共振形成所代表的有吸引力的作用。 在这项研究中,我们提出了不同的方案,以便参数化排斥相互作用,从而能够从配合到格子QCD模拟中提取有效尺寸。 我们发现,允许奇怪和光线之间的差异,奇怪的颗粒系统地小于具有相等质量的光器。 令人厌恶的交互的简单实施原则上允许我们提供一旦对应于感兴趣的物种敏感的相应晶格可观察物,就可以提取关于所有Retronic物种的精确信息。 利用最佳再现晶格数据的参数化,还存在由Alice和Star实验测量的实验产量的良好描述。

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