CERN’s LHCb Experiment Discovers New Particle with Two Charm Quarks
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The LHCb experiment at CERN’s Large Hadron Collider has detected a new particle composed of two charm quarks and one down quark, a discovery that will refine understanding of the strong force governing matter. Four times heavier than a proton, this unstable baryon joins a growing catalog of hadrons observed by LHC experiments, bringing the total to 80; researchers deduce its properties by tracking the decay of these short-lived particles produced in high-energy collisions. “This is the first new particle identified after the upgrades to the LHCb detector that were completed in 2023,” says LHCb Spokesperson Vincenzo Vagnoni, “and only the second time a baryon with two heavy quarks has been observed.” The finding, presented at the Moriond conference, offers theorists a new opportunity to test models of quantum chromodynamics and explore the behavior of exotic hadrons.
Doubly Charmed Baryon Discovered at LHCb Experiment Unlike the stable proton, this baryon is unstable, existing only briefly before decaying into other particles. Researchers can deduce its properties by analyzing these decay products, a technique employed to identify the 80th hadron discovered by LHC experiments. This discovery builds upon previous work; LHCb previously identified a similar particle in 2017, differing only in its final quark composition, an up quark instead of the down quark present in the latest finding. The subtle difference in quark flavor has a substantial impact on the particle’s lifespan, with theoretical predictions suggesting the new baryon decays up to six times faster than its counterpart due to complex quantum mechanical effects, increasing the difficulty of observation. Researchers confirmed the existence of this doubly charmed baryon with a statistical significance of 7 sigma, exceeding the 5 sigma threshold required for a formal discovery, by analyzing data from proton-proton collisions during the LHC’s third run. This finding is not merely an addition to the hadron catalog; it provides crucial data for testing models of quantum chromodynamics, the theory governing the strong force that binds quarks together, and extends to more exotic hadronic structures.
Sigma Significance Confirms Short-Lived Hadron Observation The pursuit of understanding matter’s fundamental constituents continues to yield new insights, as evidenced by the recent observation of a novel hadron at CERN’s Large Hadron Collider. Unlike the proton’s stability, most hadrons are fleeting, decaying rapidly after formation, which necessitates sophisticated detection techniques to infer their properties from decay products. Researchers leveraged data from proton-proton collisions during the LHC’s third run to identify the baryon, demonstrating the power of experimental upgrades and CERN’s accelerator complex. According to CERN Director-General Mark Thomson, “This major result is a fantastic example of how LHCb’s unique capabilities play a vital role in the success of the LHC,” and sets the stage for further advancements anticipated from the High-Luminosity LHC. The findings will allow theorists to rigorously test quantum chromodynamics, the prevailing theory of the strong force, and explore the existence of even more exotic hadronic states like tetraquarks and pentaquarks. This is the first new particle identified after the upgrades to the LHCb detector that were completed in 2023, and only the second time a baryon with two heavy quarks has been observed, the first having being observed by LHCb almost 10 years ago. Source: https://home.cern/news/news/physics/lhcb-collaboration-discovers-new-proton-particle Tags: Quantum News There is so much happening right now in the field of technology, whether AI or the march of robots. Adrian is an expert on how technology can be transformative, especially frontier technologies. But Quantum occupies a special space. Quite literally a special space. A Hilbert space infact, haha! Here I try to provide some of the news that is considered breaking news in the Quantum Computing and Quantum tech space. Latest Posts by Quantum News: Michael Saylor says Quantum Computing Remains A Risk To The Digital World March 17, 2026 UK Research and Innovation Supports Rollout of Large-Scale Quantum Computers March 17, 2026 NVIDIA Leads Collaboration Building Foundation for Physical AI in Healthcare March 17, 2026