第十届粒子所“青年之星”2024年度学术论坛

Session

Wednesday Afternoon First Session

20 Nov 2024, 14:00

9409

Contribution list Timetable

19. Thermodynamics of heavy quarkonium in the spinning black hole background

胜 王 (华中师范大学) , 德富 侯

20/11/2024, 14:00

Abstract:
In this study, we explore the thermodynamics of heavy quarkonium within the context of a spinning black hole background. Specifically, we analyze the impact of angular momentum on various thermodynamic properties of heavy quarkonium, including interquark distance, free energy, binding energy, entropy, entropic force, and internal energy, based on the thermodynamic relationships.
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2. Temperature Dependence of Viscosity of Pure-glue QCD Using Gradient Flow

成 张 (Central China Normal University)

20/11/2024, 14:20

In this talk, we present lattice results for the shear and bulk viscosities of gluon plasma, calculated in SU(3) Yang-Mills theory over the temperature range $0.76T_c \leq T \leq 2.25T_c $, where $T_c$ denotes the confinement/deconfinement transition temperature. Shear viscosity and bulk viscosity quantify the response of the energy-momentum tensor to shear flow and divergent flow,...

17. Top-DM coupling in DSMEFT

孟超 高 (华中师范大学)

20/11/2024, 14:40

自2012年希格斯粒子发现以来，标准模型作为粒子物理理论框架取得了重大成功。然而，标准模型中的粒子仅能解释约4%的宇宙物质成分，而无法解释约25%的不可见物质（即暗物质）的来源，这成为当前粒子物理学的核心挑战之一。此现象表明可能存在超出标准模型的物理理论，其中弱相互作用大质量粒子（WIMP）是一个备受关注的暗物质候选者。假设宇宙起源于大爆炸，实验测量当前暗物质丰度得出 ( \Omega h^2 = 0.12 )。

天体物理观测结果（例如星系旋转曲线和子弹星系团的研究）支持暗物质的存在，并表明其参与引力相互作用，这是目前已知的暗物质唯一已确认的相互作用形式。在高能物理领域，诸多实验正致力于直接探测暗物质的性质，尽管在探索达到GeV量级的较重暗物质方面尚未取得突破。值得注意的是，GeV量级与B介子物理衰变的典型能标相符，并且去年实验首次测得了 ( B^+ \to K^+...

7. Baryon Electric Charge Correlation as a Magnetometer of QCD

Jin-Biao Gu (华中师范大学)

20/11/2024, 15:00

We present the first lattice QCD results of quadratic fluctuations and correlations of conserved charges in (2+1)-flavor lattice QCD in the presence of a background magnetic field. The simulations were performed using the Highly Improved Staggered Quarks with physical pion mass $m_\pi$ = 135 MeV on $N_\tau=8$ and 12 lattices. We find that the correlation between net baryon number and electric...