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Search for Higgs-like bosons decaying into long-lived exotic particles
A search is presented for massive long-lived particles, in the 20–60 GeV/c2 mass range with lifetimes between 5 and 100 ps. The dataset used corresponds to 0.62 fb −1 of proton-proton collision data collected by the LHCb ...
A precise measurement of the B0 meson oscillation frequency
The oscillation frequency, Δmd, of B0 mesons is measured using semileptonic decays with a D− or D∗− meson in the final state. The data sample corresponds to 3.0fb−1 of pp collisions, collected by the LHCb experiment at ...
Observation of B+→J/ψ3π+2π− and B+→ψ(2S)π+π+π− decays
The decays B+→J/ψ3π+2π− and B+→ψ(2S)π+π+π− are observed for the first time using a data sample corresponding to an integrated luminosity of 3.0 fb−1, collected by the LHCb experiment in proton–proton collisions at the ...