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Speaker: Fanqiang Meng
PhD Candidate, Department of Physics, University of Zurich

Fanqiang Meng is a PhD student in high-energy physics at the University of Zurich. He holds both his Master’s and Bachelor’s degrees from the University of Zurich and Peking University, respectively. His research focuses on data analysis and detector upgrades for the Compact Muon Solenoid (CMS) experiment at the Large Hadron Collider (LHC), including precision measurements of rare Z boson decays, searches for new physics beyond the Standard Model, and Phase-II silicon tracker upgrades for the CMS endcap detector.

Talk: “Should China Build the Next-Generation Particle Collider?”

Particle colliders are among the most important scientific instruments in modern physics. The Higgs boson, discovered in 2012 at the Large Hadron Collider (LHC), marked a monumental milestone — completing the Standard Model and opening new frontiers for discovery.

Beyond fundamental physics, collider research drives technological innovation in accelerators and detectors, leading to advances with real-world impact — from proton therapy and synchrotron radiation sources to even improvements in chocolate manufacturing.

Following the Higgs discovery, Chinese scientists proposed building the Circular Electron–Positron Collider (CEPC) — a next-generation collider envisioned to be the world’s largest. However, its massive investment scale and scientific justification have sparked ongoing debate. Meanwhile, CERN is also advancing its own Future Circular Collider (FCC) project.

Twelve years later, both the CEPC detector and accelerator technical design reports have been released, showing that major technologies are ready — setting the stage for China’s pivotal decision on whether to proceed.

This talk will explore the scientific ideals, technical challenges, and national strategies behind this question — Should China build the next-generation particle collider?