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LHCb observes the rare decay J/ψ→μ+μ–μ+μ–
Today, at the Rencontres de Moriond QCD and High Energy Interactions, the LHCb collaboration reported the observation of the rare elecromagnetic decay J/ψ→μ+μ–μ+μ–. The simultaneous discovery of the J/ψ meson at Brookhaven and SLAC in November 1974 brought about a revolutionary change in the particle physics landscape. Prior to this revolution, in analogy to atomic…
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Measurement of D0 − antiD0 mixing and CP violation in D0→K+π – decays
Today, at a CERN seminar, the LHCb collaboration reported results of the measurement of D0 − D0 mixing and CP violation in D0→K+π– decays with the full Run 2 data sample. When combined with the previous results from Run 1, the measurement provides 40% improvement to the total uncertainty compared to the previously published analysis.…
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Ruhr-Universität Bochum became LHCb’s 100th collaborating Institute
In February 2024, the Ruhr-Universität Bochum became 100th institute to join the LHCb collaboration. We have come a long way since August 1995, when a Letter of Intent was submitted for LHCb, the world’s first dedicated b-physics experiment at a hadron collider. The beauty quark b and anti-quark b bound-state Υ was discovered at Fermilab…