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Now showing items 11-20 of 21
First study of the CP-violating phase and decay-width difference in B0s→ψ(2S)φ decays
(Elsevier, 2016)
A time-dependent angular analysis of B0s→ψ(2S)φdecays is performed using data recorded by the LHCb experiment. The data set corresponds to an integrated luminosity of 3.0 fb−1collected during Run1 of the LHC. The CP-violating ...
Search for Higgs-like bosons decaying into long-lived exotic particles
(Springer, 2016)
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 ...
Measurement of the ratio of branching fractions B(B+c→J/ψK+)/B(B+c→J/ψπ+)
(Springer, 2016)
The ratio of branching fractions RK/π≡B(B+c→J/ψK+)/B(B+c→J/ψπ+) is measured with pp collision data collected by the LHCb experiment at centre-of-mass energies of 7 TeV and 8 TeV, corresponding to an integrated luminosity ...
Observation of the Λ0b→Λφdecay
(Elsevier, 2016)
The Λ0b→Λφdecay is observed using data corresponding to an integrated luminosity of 3.0fb−1recorded by the LHCbexperiment. The decay proceeds at leading order via a b →sssloop transition and is therefore sensitive to the ...
Measurements of the S-wave fraction in B0 → K + π − μ + μ − decays and the B0 → K ∗(892)0 μ + μ − differential branching fraction
(Springer, 2016)
A measurement of the differential branching fraction of the decay B 0 → K ∗(892)0 μ + μ − is presented together with a determination of the S-wave fraction of the K + π − system in the decay B 0 → K +π− μ + μ −. The analysis ...
Measurement of the CKM angle γ using B0 → DK *0 with D → K0S π + π − decays
(Springer, 2016)
A model-dependent amplitude analysis of the decay B 0 → D(K 0S π + π −)K ∗ 0 is performed using proton-proton collision data corresponding to an integrated luminosity of 3.0 fb−1, recorded at √s=7 and 8 TeV by the LHCb ...
Measurement of the CKM angle γ from a combination of LHCb results
(Springer, 2016)
A combination of measurements sensitive to the CKM angle γ from LHCb is performed. The inputs are from analyses of time-integrated B + → DK +, B 0 → DK ∗0, B 0 → DK +π− and B + → DK +π+π− tree-level decays. In addition, ...
Measurements of long-range near-side angular correlations in √sNN=5TeV proton-lead collisions in the forward region
(Elsevier, 2016)
Two-particle angular correlations are studied in proton-lead collisions at a nucleon–nucleon centre-of-mass energy of √sNN=5TeV, collected with the LHCb detector at the LHC. The analysis is based on data recorded in two ...
A precise measurement of the B0 meson oscillation frequency
(Springer, 2016)
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 ...
Measurement of the B0s→J/ψη lifetime
(Elsevier, 2016)
Using a data set corresponding to an integrated luminosity of 3fb−1, collected by the LHCb experiment in ppcollisions at centre-of-mass energies of 7 and 8TeV, the effective lifetime in the B0s→J/ψηdecay mode, τeff, is ...