Report Title: Applications of Color Octet Structures in the Study of Exotic Hadron States

Speaker: Associate Professor Liang Tang, Hebei Normal University

Date and Time: May 22, 2024 (Wednesday), 10:30 AM

Location: Room 420, Sanshan Building

Lecture Content:

Recent experimental and theoretical studies have revealed a series of "exotic hadron states" that do not conform to traditional classifications, such as tetraquark and pentaquark states. The discovery of these exotic hadron states provides new perspectives for our understanding of the strong interaction and Quantum Chromodynamics (QCD). The color octet structure refers to a specific configuration where quarks and antiquarks exist in a color octet form, which can combine with other structures to form color-singlet hadrons. This report aims to systematically analyze the applications of color octet structures in the study of exotic hadron states, using the QCD sum rules method for theoretical calculations. Through an in-depth study of color octet structures, we can not only deepen our understanding of exotic hadron states but also provide a theoretical basis for the discovery of new types of hadron states, thereby advancing the development of particle physics.

Speaker's Biography: Liang Tang, from Zhuozhou, Hebei, is an associate professor and master's supervisor at the School of Physics, Hebei Normal University. He obtained his Ph.D. from Nankai University in 2012 and has been mainly engaged in the research of new hadron states in particle physics. He has published over 20 papers in top-tier physics journals such as Physical Review Letters and Physical Review D. He has led two National Natural Science Foundation of China projects and two Hebei Provincial Natural Science Foundation projects.

All faculty members and students are welcome to attend!