论文标题
手性旋转对称性和QCD相图
Chiral spin symmetry and the QCD phase diagram
论文作者
论文摘要
带有精神对称夸克的晶格QCD模拟最近建立了大约$ su（2）_ {cs} $和$ su（2n_f）$对量子的量子在高于手性交叉上方的温度范围内的量子有效动作的对称性，以$ t_ \ t_ \ mathrm {ch} $，在上面的互动之间进行彩色的互动式互动式互动式互动式的效果否定了效果式效果。我们表明，在手性损坏和血浆方案之间的这种中间温度范围与已发表的筛选质谱完全一致，这证明了在党派和手性旋转对称状态在$ t_s \ sim \ sim（2-3）t_ \ mathrm之间的交叉扰动理论的分解。从带有巴属化学电位的筛选质量的已知行为中，我们定性地推断出这种手性自旋对称带的延伸到QCD相图。在寒冷和致密的地区，我们提出奇偶校验将手性旋转对称性物质的候选者加倍。这代表了一个特殊的夸张物质，并限制了手性对称性，并且可以在足够高的密度下平稳转化为夸克物质。最后，我们讨论了Dilepton Spectra识别此类物质形式的潜力。
Lattice QCD simulations with chirally symmetric quarks have recently established approximate $SU(2)_{CS}$ and $SU(2N_F)$ symmetries of the quantum effective action in a temperature range above the chiral crossover $T_\mathrm{ch}$, in which color-electric interactions between quarks dominate the dynamics. We show that such an intermediate temperature range between the chirally broken and plasma regimes is fully consistent with published screening mass spectra, which demonstrate the breakdown of thermal perturbation theory at the crossover between the partonic and the chiral spin symmetric regime at $T_s\sim (2-3)T_\mathrm{ch}$. From the known behavior of screening masses with baryon chemical potential, we deduce qualitatively how this chiral spin symmetric band extends into the QCD phase diagram. In the cold and dense region, we propose parity doubled baryons as possible candidates for chiral spin symmetric matter. This represents a special case of quarkyonic matter with confinement and restored chiral symmetry, and can smoothly transform to quark matter at sufficiently high densities. Finally, we discuss the potential of dilepton spectra to identify such matter forms.
