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Abstract：
Due to their masses being significantly larger than the non-perturbative energy scale of strong interactions, heavy-flavor quarks simplify the theoretical description of processes involving heavy-flavor hadrons. These processes also provide an important window for exploring cutting-edge scientific questions, such as indirect searches for new physics signals, CP violation, and the principle of color confinement in quantum chromodynamics (QCD). This report introduces spin correlation effects and their applications in heavy-flavor hadron physics. Spin correlation effects are instrumental in the search for vector Bc mesons and in determining the spin-parity quantum numbers of fully heavy tetraquark states. Assuming that quantum entanglement is a fundamental law in pure state decays, there exists a strict constraint formula between helicity amplitudes.
Introduction to the Reporter：
Ruilin Zhu, a professor in Nanjing Normal University. He got Ph.D from University of Chinese Academy of Sciences in 2014, also joint training of doctoral students in Lawrence Berkeley Lab of USA。 In 2016 he joined Nanjing Normal University after a postdoc research in Shanghai Jiao Tong University。He has been engaged in theoretical research on heavy flavor physics, hadron physics and quantum chromodynamics, and published more than 40 SCI papers in PRL, PRD, JHEP and other journals. Served as an editorial board member of Chinese Journal of Physics C. He was selected as an outstanding young backbone teacher of the Qinglan Project of Jiangsu Province and the third-level talent plan of the 333 Project. From 2022 to 2024, he will be selected into the list of the top 2% of the world's top scientists jointly released by Stanford University and Elsevier.