Connecting fluctuation measurements in heavy-ion collisions with the grand-canonical susceptibilities

重夸克QCD中费米子激发的热力学

Thermodynamics of fermionic excitations in heavy-quark QCD

本文在格点重夸克QCD中用hopping参数展开解析计算巨势与夸克数磁化率，揭示退禁闭相与禁闭相中四阶与二阶磁化率比值分别为1和9，并给出夸克及重子激发能的解析公式。

热力学和夸克亲和性：PNJL模型的Monte-Carlo方法

Thermodynamics and quark susceptibilities: a Monte-Carlo approach to the PNJL model

本文将Monte-Carlo方法应用于Polyakov圈扩展Nambu-Jona-Lasinio（PNJL）模型。这导致了平均场计算中的鞍点近似，并在平均场周围引入了波动。我们研究了涨落对模型热力学的影响，无论是在纯规范理论的情况下，包括两个夸克的味道。在双味情形下，我们计算了热力学巨正则配分函数关于夸克化学势的二阶泰勒展开系数，并与格点量子色动力学的外推结果进行了比较.我们发现，波动的引入产生的手征对称性恢复和退禁闭过渡的序参量的行为只有很小的变化。另一方面，我们发现，为了重现味非对角夸克的晶格数据的波动是必要的。特别重要的是π介子场，其贡献在鞍点近似中严格为零。

大规模统一起源的增强标量耦合：连接辐射电弱对称破缺到SO(10)动态

Grand Unified Origin of Enhanced Scalar Couplings: Connecting Radiative Electroweak Symmetry Breaking to SO(10) Dynamics

本文探讨了通过SO(10)大统一理论自然产生辐射性电弱对称破缺所需的增强Higgs四阶耦合，揭示其与GUT尺度的关联。

Thermodynamic approach to proton number fluctuations in baryon-rich heavy-ion matter created at moderate collision energies

We develop a framework to relate proton number cumulants measured in heavy-ion collisions within a momentum space acceptance to the susceptibilities of baryon number, assuming that particles are emitted from a fireball with uniform distribution of temperature and baryochemical potential, superimposed on a hydrodynamic flow velocity profile. The rapidity acceptance dependence of proton cumulants measured by the HADES Collaboration in $\sqrt{s_{\rm NN}} = 2.4$ GeV Au-Au appears to be consistent with thermal emission of nucleons from a grand-canonical heat bath, with the extracted baryon number s…

Particlization of an interacting hadron resonance gas with global conservation laws for event-by-event fluctuations in heavy-ion collisions

We revisit the problem of particlization of a QCD fluid into hadrons and resonances at the end of the fluid dynamical stage in relativistic heavy-ion collisions in a context of fluctuation measurements. The existing methods sample an ideal hadron resonance gas, therefore, they do not capture the non-Poissonian nature of the grand-canonical fluctuations, expected due to QCD dynamics such as the chiral transition or QCD critical point. We address the issue by partitioning the particlization hypersurface into locally grand-canonical fireballs populating the space-time rapidity axis that are const…

全局与局部电荷守恒下的密度关联

Density correlations under global and local charge conservation

提出正则系综下计算守恒荷密度空间$n$点关联的框架，应用于LHC重离子碰撞引入局部重子数守恒，分析ALICE净质子累积量数据证实了局部重子守恒。