Tea Time学术活动系列邀请报告（281）

       报告题目：High-order Q-cumulants

　　报告人：Laslo Nadderd（塞尔维亚文卡国家核科学研究所）

　　时间：2026年6月2日（星期二）15:00-16:00

　　地点：理学院1-401

　　报告内容：The method of Q-cumulants has been shown as a powerful tool to study the fine details of the azimuthal anisotropies in high-energy nucleus-nucleus collisions. A new method for the fast calculation of arbitrary order Q-cumulant vn{2k} values, based on the partition of a non-negative integer l ≤ m for calculation of the 2m-particle azimuthal correlations will be presented. Unlike the standard Q-cumulants method in which the calculation of high-order multi-particle calculations is impractical, the newly proposed method enables easy calculation. The validity of the method is proven via a toy model that uses the elliptic power distribution to simulate anisotropic emission of particles. The method enables the study of fine details of the v2 distribution, such as higher-order central moments of the v2 distribution, as well as the hydrodynamic behavior of the Quark-Gluon Plasma.

　　报告人简介：

　　Laslo Nadderd现任塞尔维亚文卡国家核科学研究所 (INS Vinca, Belgrade, Serbia）高级副研究员。他深耕低能核物理领域二十余载，核心研究方向为伽马能谱符合相加效应。其独创的 X 射线 - 伽马符合矩阵法，现已在核能谱学领域得到广泛应用。同时，他拥有八年高能核物理研究经验，致力于探究重离子碰撞体系中，极端温度与重子密度条件下的强相互作用物质，主攻方位各向异性研究。目前为欧洲核子中心 CMS、杜布纳联合核研究所 MPD、STAR 等多项国际高能物理合作组成员。