On the afternoon of June 3rd, the [NanGaoShi·Physics Salon] series, hosted by the School of Physics and Technology at Nanjing Normal University, was successfully held in Room 437 of the Xingjian Building. Assistant Professor Liupan An from the Department of Technical Physics, School of Physics at Peking University, was invited to deliver an academic report titled "Recent Progress on Heavy Flavor Hadron Spectroscopy at the LHCb Experiment." The lecture was chaired by Professor Ruilin Zhu from the School of Physics and Technology, and was attended by numerous faculty members and graduate students from related disciplines.

During the report, Prof. An deeply explored the non-perturbative behavior of QCD in the low-energy region, a core frontier topic in particle physics. Facing the immense challenge of revealing the nature of the strong interaction, she pointed out that heavy flavor hadron spectroscopy provides a crucial experimental pathway for this exploration. She gave the audience a detailed introduction to the LHCb experiment at the LHC, located at the European Organization for Nuclear Research. Equipped with a precision spectrometer specifically designed for heavy flavor physics, the experiment has successfully overcome numerous bottlenecks in particle detection.

Prof. An highlighted the core strengths of the LHCb experiment: relying on its outstanding vertex resolution, track reconstruction, and particle identification capabilities, the experiment has achieved a series of breakthroughs in heavy flavor hadron spectroscopy. In her presentation, she not only detailed the discovery processes of new hadron states—such as pentaquarks, doubly charmed baryons, and fully charmed tetraquarks—but also vividly demonstrated the practical significance of these discoveries within specific physical contexts. This series of innovative discoveries undoubtedly provides an extremely sensitive new probe for detecting and resolving complex non-perturbative properties.

Concluding the report, Prof. An summarized the latest research progress of the LHCb experiment in this field and shared her outlook on its physics potential following detector upgrades. These important achievements not only offer new perspectives for studying the internal structure of hadrons but will also greatly encourage the widespread application of related experiments in future particle physics research. During the interactive Q&A session, participating faculty and students engaged in in-depth exchanges and heated discussions with Prof. An on cutting-edge topics like exotic hadron states, heavy quarkonium production mechanisms, and detector upgrades. This academic report broadened the academic horizons of the researchers and laid a solid foundation for future interdisciplinary collaboration between theory and experiment.

Speaker Biography:

Liupan An is an Assistant Professor in the Department of Technical Physics, School of Physics at Peking University. She is a Boya Young Scholar and a recipient of the National High-level Young Talent Program. She has long been engaged in research on heavy flavor hadron spectroscopy and production mechanisms with the LHCb experiment group at CERN's Large Hadron Collider. Prof. An has led and completed multiple significant research achievements in areas including exotic hadron states, Bc meson spectroscopy, and heavy quarkonium production mechanisms. Notably, her work includes the first discovery of the fully charmed tetraquark state X(6900) and the first discovery of the orbital excited state of the Bc meson. These contributions are instrumental in revealing the internal structure of hadrons and understanding the non-perturbative properties of the strong interaction in the low-energy region.