QCD有效模型中重子熔化温度的味依赖性
高能物理 - 唯象学
2015-07-01 v2 核理论
摘要
我们应用三味（Polyakov-）Nambu-Jona-Lasinio模型，在有限温度下使用多体技术将重子生成为夸克-双夸克束缚态。在同位旋对称情况下，生成了属于八重态和十重态味表示的所有重子态。对于每个态，我们提取了重子可能衰变为夸克-双夸克对的熔化温度。我们寻找统计热模型所暗示并得到格点-QCD结果支持的重子熔化温度对奇异数的依赖性的证据。发现了支持该论断的清晰且稳健的信号，指向强子去禁闭温度的味道依赖性。
引用
@article{arxiv.1502.03459,
title = {Flavor dependence of baryon melting temperature in effective models of QCD},
author = {Juan M. Torres-Rincon and Benjamin Sintes and Joerg Aichelin},
journal= {arXiv preprint arXiv:1502.03459},
year = {2015}
}
备注
23 pages, 12 figures, 6 appendices. v2: Quark condensates and susceptibilities are presented. One parameter of the PNJL model is modified to account for its dependence on the number of flavors; this brings a better agreement between the NJL and PNJL models. Typos are corrected and new references added. Version accepted for its publication in the Physical Review C journal