讲座主题：The Light-by-Light Contribution to the Anomalous Magnetic Moment of Muon within the Nonlocal Chiral Quark Model

专家姓名：Andrei Radzhabov

工作单位：Matrosov Institute for System Dynamics and Control Theory，Russia

讲座时间：2025年10月16日 16:00-17:30

讲座地点：钟楼1511

主办单位：烟台大学物理与电子信息学院

内容摘要：

The magnetic moments of the electron and the muon are rare examples in particle physics of quantities that canbe precisely measured experimentally and calculated theoretically. To the current level of experimental precision,the anomalous magnetic moment of the electron is mostly due to quantum electrodynamics corrections with a smallstrong contribution, while the anomalous magnetic moment of the muon is more sensitive to other interactions of theStandard Model. The contribution from strong interactions cannot be calculated theoretically using QCD perturbationtheory and represent the dominant sources of uncertainty in the theoretical prediction of the muon g-2 value. Whilethe 2020-21 gap between experiment and theory spanned several standard deviationsa possible signature of NewPhysics–recent advances have reshaped the picture. The current situation is discussed and the estimation of thelight-by-light contribution within the framework of the quark model is presented.

主讲人介绍：

He graduated from the Physics Department of Irkutsk State University in 1999, and defended PhD Thesis in 2004 at the Bogoliubov Laboratory of Theoretical Physics (BLTP), JINR, Dubna, and his Habilitation (D.Sc.) in 2019 at Irkutsk State University. He worked at BLTP, JINR from 2002 to 2008 and have been at the Matrosov Institute for System Dynamics and Control Theory since 2008. His main research interests are in the physics of strong interactions, including meson physics, the QCD phase diagram, and modeling quark confinement.