The ATLAS Collaboration has made a significant breakthrough by observing a new particle consistent with the Bc*+ meson, the lowest excited state of the Bc+ meson, at the Large Hadron Collider. This new meson, consisting of a charm quark and a bottom antiquark, presents an opportunity to better understand the strong force that binds quarks within hadrons. The Bc*+ meson is expected to be slightly heavier than the ground state Bc+ meson, with a measured mass difference of 64.5 ± 1.4 MeV. Detecting this particle was challenging due to the low energy of the emitted photon during its decay, which necessitated a novel approach using photon conversion techniques. The research focused on Bc+ meson decays involving three muons and an invisible neutrino, which occurs more frequently than other decay modes, allowing for effective detection despite the complexities. This finding not only adds to the existing knowledge of mesons but also aids in refining theoretical models regarding heavy-hadron mass spectra, enhancing our understanding of the strong interaction.