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17/10/2026, 14:00
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18/10/2026, 08:50
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Dr Nonaka Toshihiro (CCNU)18/10/2026, 09:00
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Zheng Liu (Institude of Modern Physics, Fudan University)18/10/2026, 10:30
We report the first measurements of two-particle transverse-momentum correlations for midrapidity charged particles in fixed-target Au+Au collisions at $\sqrt{s_{\mathrm{NN}}}=3.0$--$7.7$ GeV using data collected by STAR during the Beam Energy Scan Phase II program [1]. Combined with previous BES-I measurements at $\sqrt{s_{\mathrm{NN}}}=7.7$--$200$ GeV [2], the relative dynamical correlator...
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Yuli Kong (华中师范大学)18/10/2026, 10:50
We present recent STAR measurements of the newly proposed radial flow fluctuation coefficient, $v_{0}(p_{T})$, for identified hadrons in heavy-ion collisions at RHIC. As a direct probe of the isotropic component of collective expansion, $v_{0}(p_{T})$ is uniquely sensitive to both the strength and event-by-event fluctuations of radial flow, offering new constraints on the initial-state...
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Mr 帅 杨 (西安交通大学)18/10/2026, 11:10
磁化 QCD 物质中的守恒荷涨落与关联，以及温度涨落，在手征恢复相变和禁闭解除相变过程中被广泛研究，包括交叉区域以及临界终点（ CEP）附近区域。相关计算在三味（Polyakov 扩展的）Nambu–Jona-Lasinio 模型框架下进行。对于有限温度下的交叉过程，我们重点研究这些物理量对外部磁场的依赖关系，并发现重子数与其他守恒荷之间的关联对外部磁场最为敏感。对于有限温度和有限密度下的 CEP 区域，我们系统地计算了最高达十阶的涨落与关联，以理解其临界性质。
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屹威 邱 (CCNU)18/10/2026, 11:30
In this work, we construct a theoretical framework for relativistic second-order magnetohydrodynamics based on entropy current analysis. The formalism consistently incorporates the relaxation dynamics of dissipative fluxes, ensuring the hyperbolic nature of the evolution equations. Utilizing linear mode analysis, we investigate the constraints imposed by causality and stability on this...
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开燚 吴 (CCNU)18/10/2026, 11:50
Energy and momentum deposited by energetic partons in the quark-gluon plasma (QGP) generate a Mach-cone-like jet-induced medium response consisting of a propagating wake front and a diffusion wake. In realistic heavy-ion collisions, this response evolves in a nonuniform and expanding medium and is therefore distorted by the density gradient and hydrodynamic flow. Using the coupled Linear...
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天喆 周 (清华大学)18/10/2026, 14:00
One method used to infer the mass and radius of a neutron star is Pulse Profile Modelling (PPM). PPM connects X-ray emission from localized regions on the neutron star's surface to a modulated signal seen in X-ray detectors (such as NICER). The analysis requires relativistic raytracing， which creates a computational bottle-neck that leads to two issues: the analysis of data is very slow， and...
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志晗 李 (上海交通大学)18/10/2026, 14:20
Strong first-order QCD phase transitions from hadronic to quark matter can produce disconnected hybrid-star branches, and the evolution and fate of stellar configurations close to the onset of the unstable branch triggered by the phase transition may depend on finite-temperature and composition effects in the equation of state (EOS). To investigate these aspects, we perform three-dimensional...
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Mr 亦扬 彭 (北京大学理论物理研究所)18/10/2026, 14:40
We investigate the applicability of hydrodynamics in small collision systems by comparing viscous anisotropic hydrodynamics (VAH) with conventional viscous hydrodynamics (VH). In $\sqrt{s}=13$ TeV p+p collisions, VAH successfully describes $v_2\{2\}$, $v_3\{2\}$, and the negative $c_2\{4\}$, whereas VH requires evolution characterized by large shear Knudsen numbers. We further compare VAH and...
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Jeremy Hansen (chinese university of Hong Kong, Shenzhen)18/10/2026, 15:00
We investigate spin hydrodynamic properties with an focus on entropy production for massive spin 1/2 particles. We consider particle collisions both with and without the influence of chiral anomalies such as the chiral magnetic or vortical effects, encoded by Berry curvature. This manifests as a spatial shift ($\Delta$). In doing so we first define and entropy that makes use of the matrix...
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Jia Ni18/10/2026, 15:50
Strong magnetic fields produced in relativistic heavy-ion collisions can modify conserved-charge fluctuations and their associated chemical potentials. The Ru and Zr isobars share the same mass number, $A=96$, but have different charge-to-baryon ratios, making Ru+Ru and Zr+Zr collisions a controlled setting for isolating isospin effects. In this talk, we will present first-principles,...
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奕力 王 (北京大学)18/10/2026, 16:10
Recent O+O and Ne+Ne collisions at the LHC provide a controlled laboratory to test the applicability of relativistic hydrodynamics and search for signatures of quark-gluon plasma formation in small systems. We study O+O and Ne+Ne collisions at $\sqrt{s_{\mathrm{NN}}}=5.36~\mathrm{TeV}$ using two complementary approaches.
First, we compare viscous anisotropic hydrodynamics (VAH) with...
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Yushan Mu (Fudan)18/10/2026, 16:30
It has recently been realized that in the ultra-central heavy-ion collisions, mean transverse momentum of hadrons contains the information of the fundamental thermodynamic properties of quark-gluon plasma (QGP). In particular, in nucleus-nucleus collisions, the linear correlation between the mean transverse momentum and the charged multiplicity is attributed to the QCD speed of sound, which...
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Dr Rohit Kumar Singh (Shandong University)18/10/2026, 16:50
Event-by-event fluctuations of the mean transverse momentum of particles provide a direct probe of collective radial expansion of the system formed in high-energy collisions. We present the first measurement of transverse-momentum-dependent radial flow fluctuations, characterized by the observable $v_0(p_{\mathrm{T}})$, in small collision systems. The measurement is performed using CMS data...
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禛康 陆 (香港中文大学（深圳）)18/10/2026, 17:10
Hydrodynamics can describe the thermalized quark-gluon plasma phase of heavy-ion collisions. Extending its validity to pre-equilibrium stages requires accounting for short-lived non-hydrodynamic modes. In this talk, I present a method that retains selected information from these modes to extend the validity of hydrodynamics beyond the conventional hydrodynamic regime. I apply this method to...
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Wenbin Zhao (CCNU), Dr Yi Yin (chinese University of Hong Kong, Shenzhen)18/10/2026, 19:30
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Dr Simin Wang (Fudan University)19/10/2026, 09:00
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Mr Zhiyong Lu (CIAE(中国原子能科学研究院))19/10/2026, 10:30
A central question in strong-interaction physics, governed by quantum chromodynamics (QCD), is whether femto-scale droplets of quark–gluon plasma (QGP) form in small collision systems involving projectiles significantly smaller than heavy ions. Collisions of light ions such as 16O and 20Ne offer a unique opportunity to probe the emergence of collective behavior in QCD matter. This work...
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义 李 (中山大学物理与天文学院)19/10/2026, 10:50
无中微子双贝塔衰变是目前粒子物理与核物理研究领域的科学前沿，是可能突破粒子物理标准模型的重要研究方向之一 。如果实验上观测到无中微子双贝塔衰变，将提供违反轻子数的直接证据，同时表明中微子是马约拉纳粒子，有助于理解宇宙中正反物质不对称之谜。
其中，NME是连接半衰期与中微子质量的关键“桥梁” ，其数值大小直接决定衰变的快慢，并影响提取中微子质量的精度。然而，不同核理论模型对NME的预测相差三倍甚至更多，对设计以及解释无中微子双贝塔衰变实验带来很大的不确定性。因此，降低候选原子核衰变NME的不确定性是亟需解决的关键科学问题之一。
在近期的工作中，我们计算了¹⁵⁰Nd → ¹⁵⁰Sm 到无中微子双贝塔衰变核矩阵元NME，并进行了母核¹⁵⁰Nd + ¹⁵⁰Nd...
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金玉 胡 (中国科学技术大学)19/10/2026, 11:10
Relativistic $^{16}$O+$^{16}$O collisions provide a valuable opportunity to study both the quark-gluon plasma formed in small systems and the intrinsic structure of $^{16}O$. Recent implementations of ab initio nuclear configurations in heavy-ion simulations have produced different predictions for cluster-sensitive observables, making it difficult to identify the origin of possible 𝛼-cluster...
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彦汝 暴 (华中师范大学)19/10/2026, 11:30
Traditional Monte Carlo Glauber models[1] treat deformed nuclei using a classical approximation: in each event, a fixed orientation is randomly assigned to the nucleus, which effectively breaks the rotational symmetry. However, for even-even nuclei, the ground state must remain in the $J=0$ ground state. To restore this broken symmetry, we introduce quantum superposition over all possible...
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Changle Sun19/10/2026, 11:50
Jet quenching provides a valuable measure of the opacity of the quark-gluon plasma (QGP) produced in high-energy heavy-ion collisions. However, substantial suppression of charged hadron spectra is observed in highly peripheral collisions, despite the expectation of negligible jet-QGP interactions in this regime. In this work, we demonstrate that the suppression observed in highly peripheral...
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Ziyue Zhang (University of the Chinese Academy of Sciences)19/10/2026, 14:00
Quarkonia are excellent probes for studying the interactive properties of quark-gluon plasma formed in relativistic heavy-ion collisions. To correctly interpret the observed suppression of quarkonium production in $\text{Au}+\text{Au}$ collisions at $\sqrt{s_{\text{NN}}}$ = 200 GeV, the cold nuclear matter (CNM) effects in $p+\text{Au}$ collisions are quantified by the nuclear modification...
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yan guowei19/10/2026, 14:20
Entanglement generated in the early stage of relativistic heavy-ion collisions (HIC) is considered a direct and fundamental source for understanding fast thermalization, entropy production, and evolution. Spin entanglement in QCD, arising from non-commutative geometric effects of quantum fields, provides a new avenue to explore the quantum informational footprint of the QCD topological vacuum...
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Yongzhen HOU (GSI & CUG)19/10/2026, 14:40
Jets produced in heavy-ion collisions interact with the hot and dense quark–gluon plasma, leading to parton energy loss, redistribution of jet energy, and possible broadening of the jet direction. The azimuthal correlation between a high-pT trigger hadron and recoil jets provides a sensitive probe of these medium-induced modifications.
In this contribution, we present measurements of...
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Huda Nasrulloh (University of Science and Technology of China)19/10/2026, 15:00
Ultra-peripheral Ru+Ru and Zr+Zr collisions at $\sqrt{s_{\mathrm{NN}}}=200~\mathrm{GeV}$ at RHIC provide a controlled setting for investigating nuclear-structure effects in the photonuclear production of forward neutrons. Although the two isobars have the same mass number, they differ in proton number and photonuclear response, making their neutron-tagged Coulomb-dissociation cross-section...
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佳瑞 夏 (湖北大学)19/10/2026, 15:20
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Guangyu Zheng (University of Chinese Academy of Sciences)19/10/2026, 16:10
Directed flow $v_1$ has been used to probe the early dynamics in high-energy nuclear collisions. The vector meson $\phi(s\bar{s})$, with a mass comparable to that of light baryons and weak hadronic interactions, provides a unique probe of the interplay between particle production mechanisms and early-stage dynamics in high-density nuclear matter.
In this talk, we report measurements of...
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Yu-Jie Huang19/10/2026, 16:30
Recent work has proposed sequential hadronization of open-charm hadrons in the quark-gluon plasma, wherein more tightly bound species such as Ds+ form earlier near 1.2Tc and D0 forms later at Tc. That work showed that this mechanism naturally reverses the sign of the D0 − Ds+ elliptic-flow splitting ∆v2 ≡ v2(D0) − v2(Ds+) relative to the conventional simultaneous baseline. In this work, we...
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Ms Xue Wang (Shandong University)19/10/2026, 16:50
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Youquan Qi (Central China Normal University)19/10/2026, 17:10
Measurements of identical pion femtoscopy offer insights into collision dynamics, such as collective expansion, geometry of the collision zone at freeze-out, final state interactions, etc. In addition to the quantum interference and Coulomb interactions among the pion pairs, Coulomb interactions between the pair and the net positive charge in the emitting source affect the final correlation...
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Fan Lin (Anhui University of Science and Technology)19/10/2026, 17:30
This report investigates the infrared structure of QCD through the lens of the Cho–Faddeev–Niemi decomposition and Faddeev–Niemi effective theory. We argue that gluon knots, as topological solitons characterized by the Hopf invariant, constitute the relevant infrared ground-state degrees of freedom of Yang–Mills fields. Within this framework, we present a unified mechanism for monopole...
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Dr Xiaojian Du (USTC)20/10/2026, 09:00
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lin li (华中师范大学)20/10/2026, 10:30
The energy-energy correlator (EEC) provides a powerful probe of jet substructure and multi-scale parton dynamics. A key challenge in jet quenching physics is to consistently model the transition between vacuum-like parton shower evolution at high virtuality and subsequent jet-medium interactions. Within the LIDO framework, this physics is governed by a critical cutoff scale $Q_0$ that...
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家力 邓20/10/2026, 10:50
Understanding the internal structure of the proton—including its mass spectrum, structure functions, and electromagnetic and gravitational form factors—remains a central challenge in hadronic physics. While lattice QCD and experimental measurements provide valuable insights, holographic methods are a meaningful complementary tool. Here, we employ different holographic approaches to calculate...
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艺航 高 (华中师范大学)20/10/2026, 11:10
喷注是硬散射过程产生的高能部分子强子化后的准直粒子束流，是检测微扰量子色动力学的重要探针。在重离子碰撞中，部分子喷注穿过夸克-胶子等离子体（QGP）时发生能量损失，这一现象被称为喷注淬火。除喷注本身的能量损失外，部分子沉积到介质中的能量与动量还会激发局域介质的响应，形成所谓的喷注耗散尾流效应。理论上，这种介质响应包含两种主要成分：沿喷注方向传播的马赫锥声波激发，以及在喷注反方向上因动量守恒导致的粒子产额耗尽，即耗散尾流。耗散尾流作为喷注-介质相互作用的独特信号，近年来受到理论和实验的高度关注。最新研究进展表明，CMS通过双喷注的关联测量显示了耗散尾流效应的相关信号，ALICE合作组亦计划在LHC第三期运行取得的数据中开展相关研究，以补充和完善CMS的相关策略，深入理解该实验现象的物理机制。
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Wan Wu (Tsinghua University)20/10/2026, 11:30
We construct a light-front Hamiltonian description of the nucleon in an enlarged low-energy Fock space containing the valence $q q q$ sector, the sea-flavor $q q q q \bar{q}$ sector, and the gluonic hybrid $q q q g$ sector. The $q q q \leftrightarrow q q q q \bar{q}$ mixing is taken to be generated by the chiral pair of $\sigma$ - and $\pi$-type operators used in the nucleon-pentaquark...
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Peng Jianjie (USTC)20/10/2026, 11:50
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旭 刘 (山东大学)20/10/2026, 13:30
Confirming gluon saturation at the Electron--Ion Collider requires observables sensitive to saturation-induced transverse structure that survive hadronization. We present an event generator implementing folded small-$x$ evolution for proton and gold targets, connecting nonlinear gluon dynamics to exclusive final states through complete shower and hadronization. Angular energy flow and...
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Cheng Xu (South China University of Technology)20/10/2026, 13:50
The search for quark–gluon plasma (QGP)-like collectivity in small collision systems remains a central goal of high-energy nuclear physics. Recent results from O$+$O collisions suggest that strongly coupled, near-perfect-fluid behavior may emerge even in such small systems, motivating a detailed investigation of jet quenching in systems of reduced size. In this work, we study hadron and jet...
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Hao Wang (华南理工大学)20/10/2026, 14:10
Jet quenching provides a sensitive probe of the transport properties and microscopic structure of the quark-gluon plasma (QGP). In this work, we use the Linear Boltzmann Transport (LBT) model to study jet-medium interactions from two complementary perspectives: photon-tagged jet observables in different collision systems and multi-point energy correlators inside jets.
The first part focuses...
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20/10/2026, 15:00
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Dr Anke(安科) Lei(雷) (Guizhou Normal University (贵州师范大学))
We investigate the production of open-flavor hadrons in $ pp $ collisions at $ \sqrt{ s_{ NN } } $ = 5.02 TeV using the parton and hadron cascade model PACIAE. We introduce string tension enhancement mechanisms towards dipole and double-junction strings in the string fragmentation hadronization model. The transverse momentum spectra and the baryon-to-meson ratios of light and heavy...
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