The University of Ferrara and the Ferrara branch of the National Institute for Nuclear Physics contributed to the discovery of the new Ξcc⁺ particle, which was recently reported by the worldwide team of the LHCb experiment at CERN, Geneva. The Ξcc⁺ is a subatomic particle with a structure identical to the proton, but approximately four times heavier. It belongs to the baryon family and is made up of two charm quarks and one down quark. Its discovery is especially significant since it opens up new avenues for research into baryons containing heavy quarks and enables for more exact testing of theoretical models explaining the strong force, one of nature's fundamental interactions. For years, the Ferrara group has been actively involved in the LHCb experiment, contributing directly to the creation, construction, and operation of particle identification systems, primarily the Cherenkov (RICH) detectors, as well as data gathering and processing. "The Ξcc⁺ system is very interesting for particle physics because it contains two charm quarks, i.e., heavy quarks. This allows us to study under particular conditions how the strong force binds the constituents of matter", comments Massimiliano Fiorini, Professor of the Department of Physics and Earth Sciences at Unife. "These findings contribute to the testing of quantum chromodynamics and the refinement of our understanding of hadron structure". The discovery is one of the first major scientific achievements produced with the revised version of the LHCb, which, thanks to improved detector performance, has greatly expanded its data acquisition and selection capacity. In this perspective, the Ferrara group's contribution reaffirms the University and the INFN Ferrara section's active and competent participation in one of the most important international particle physics collaborations.