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1.
Study of charmonium and charmonium-like contributions in B+J/ψηK+ decays / LHCb Collaboration
A study of B+J/ψηK+ decays, followed by J/ψμ+μ and ηγγ, is performed using a dataset collected with the LHCb detector in proton-proton collisions at centre-of-mass energies of 7, 8 and 13 TeV, corresponding to an integrated luminosity of 9 fb1. The J/ψη mass spectrum is investigated for contributions from charmonia and charmonium-like states. [...]
arXiv:2202.04045; CERN-EP-2022-009; LHCb-PAPER-2021-047; LHCB-PAPER-2021-047.- Geneva : CERN, 2022-04 - 31 p. - Published in : JHEP 2020 (2022) 046 Fulltext: PDF; Related data file(s): LHCb-PAPER-2021-047-figures - ZIP; LHCb-PAPER-2021-047 - PDF;
2.
Probing the nature of the χc1(3872) state using radiative decays / LHCb Collaboration
The radiative decays χc1(3872)ψ(2S)γ and χc1(3872)J/ψγ are used to probe the nature of the χc1(3872) state using proton-proton collision data collected with the LHCb detector, corresponding to an integrated luminosity of 9fb1. Using the B+χc1(3872)K+ decay, the χc1(3872)ψ(2S)γ process is observed for the~first time and the ratio of its partial width to that of the χc1(3872)J/ψγ decay is measured to be Γχc1(3872)ψ(2S)γΓχc1(3872)Jψγ=1.67±0.21±0.12±0.04, where the first uncertainty is statistical, the second systematic and the third is due to the uncertainties on the branching fractions of the ψ(2S) and J/ψ mesons. [...]
arXiv:2406.17006; LHCb-PAPER-2024-015; CERN-EP-2025-157; LHCB-PAPER-2024-015.- Geneva : CERN, 2024-11-21 - 33 p. - Published in : JHEP 2411 (2024) 121 Fulltext: 2406.17006 - PDF; document - PDF; Related data file(s): ZIP; Supplementary information: ZIP;
3.
Search for the decay B0ϕμ+μ / LHCb Collaboration
A search for the decay B0ϕμ+μ is performed using proton-proton collisions at centre-of-mass energies of 7, 8, and 13 TeV collected by the LHCb experiment and corresponding to an integrated luminosity of 9 fb1. No evidence for the B0ϕμ+μ decay is found and an upper limit on the branching fraction, excluding the ϕ and charmonium regions in the dimuon spectrum, of 4.4×103 at a 90% credibility level, relative to that of the B0sϕμ+μ decay, is established. [...]
arXiv:2201.10167; LHCb-PAPER-2021-042; CERN-EP-2021-267.- 2022 - 21 p. - Published in : 10.1007/JHEP05(2022)067 Fulltext: PDF;
4.
Improved measurement of CP violation parameters in B0sJ/ψK+K decays in the vicinity of the ϕ(1020) resonance / LHCb Collaboration
The decay-time-dependent CP asymmetry in B0sJ/ψ(μ+μ)K+K decays is measured using proton-proton collision data, corresponding to an integrated luminosity of 6fb1, collected with the LHCb detector at a center-of-mass energy of 13 TeV. Using a sample of approximately 349 000 B0s signal decays with an invariant K+K mass in the vicinity of the ϕ(1020) resonance, the CP-violating phase ϕs is measured, along with the difference in decay widths of the light and heavy mass eigenstates of the B0s-¯B0s system, ΔΓs, and the difference of the average B0s and B0 meson decay widths, ΓsΓd. [...]
arXiv:2308.01468; LHCb-PAPER-2023-016; CERN-EP-2023-145; CERN-EP-2023-145 CERN-EP-2023-145; LHCb-PAPER-2023-016.- Geneva : CERN, 2024-02-02 - 12 p. - Published in : Phys. Rev. Lett. 132 (2024) 051802 Fulltext: 2308.01468 - PDF; LHCb-PAPER-2023-016 - PDF; Publication - PDF; Related data file(s): ZIP; Supplementary information: ZIP;
5.
Search for the doubly heavy Ξ0bc baryon via decays to D0pK / LHCb Collaboration
A search for the doubly heavy Ξ0bc baryon using its decay to the D0pK final state is performed using proton-proton collision data at a centre-of-mass energy of 13 TeV collected by the LHCb experiment between 2016 and 2018, corresponding to an integrated luminosity of 5.4 fb1. No significant signal is found in the invariant mass range from 6.7 to 7.2 GeV/c2. [...]
arXiv:2009.02481; LHCb-PAPER-2020-014; CERN-EP-2020-137; LHCB-PAPER-2020-014.- Geneva : CERN, 2020 - 21 p. - Published in : JHEP 2011 (2020) 095 Article from SCOAP3: PDF; Fulltext: PDF; Related data file(s): ZIP;
6.
Observation of enhanced double parton scattering in proton-lead collisions at sNN=8.16 TeV / LHCb Collaboration
A study of prompt charm-hadron pair production in proton-lead collisions at sNN=8.16 TeV is performed using data corresponding to an integrated luminosity of about 30 nb1, collected with the LHCb experiment. Production cross-sections for different pairs of charm hadrons are measured and kinematic correlations between the two charm hadrons are investigated. [...]
arXiv:2007.06945; LHCb-PAPER-2020-010; CERN-EP-2020-119; LHCB-PAPER-2020-010.- Geneva : CERN, 2020-11-20 - 13 p. - Published in : Phys. Rev. Lett. 125 (2020) 212001 Article from SCOAP3: PDF; Fulltext: 2007.06945 - PDF; Paper-2020-010 - PDF; Related data file(s): ZIP; Supplementary information: ZIP;
7.
Observation of the B0sD±D decay / LHCb Collaboration
A search for the B0sD±D decay is performed using proton-proton collision data at centre-of-mass energies of 7, 8 and 13TeV collected by the LHCb experiment, corresponding to an integrated luminosity of 9fb1. The decay is observed with a high significance and its branching fraction relative to the B0D±D decay is measured to be B(B0sD±D)B(B0D±D)=0.137±0.017±0.002±0.006, where the first uncertainty is statistical, the second systematic and the third is due to the uncertainty on the ratio of the B0s and B0 hadronisation fractions..
arXiv:2012.11341; LHCb-PAPER-2020-037; CERN-EP-2020-230.- 2021-03-09 - 19 p. - Published in : JHEP 2103 (2021) 099 Article from SCOAP3: PDF; Fulltext: PDF; Related data file(s): ZIP; Supplementary information: ZIP;
8.
Updated search for B+c decays to two charm mesons / LHCb Collaboration
A data set corresponding to an integrated luminosity of 9\, fb1 of proton-proton collisions collected by the LHCb experiment has been analysed to search for B+cD()+(s)(¯D)()0 decays. The decays are fully or partially reconstructed, where one or two missing neutral pions or photons from the decay of an excited charm meson are allowed. [...]
arXiv:2109.00488; LHCb-PAPER-2021-023; CERN-EP-2021-154; LHCB-PAPER-2021-023.- Geneva : CERN, 2021 - 23 p. - Published in : JHEP 2112 (2021) 117 Fulltext: PDF; Related data file(s): ZIP; Supplementary information: ZIP;
9.
First observation of the decay Λ0bηc(1S)pK / LHCb Collaboration
The decay Λ0bηc(1S)pK is observed for the first time using a data sample of proton-proton collisions, corresponding to an integrated luminosity of 5.5 fb1, collected with the LHCb experiment at a centre-of-mass energy of 13 TeV. The branching fraction of the decay is measured, using the Λ0bJ/ψpK decay as a normalisation mode, to be B(Λ0bηc(1S)pK)=(1.06±0.16±0.06+0.220.19)×104, where the quoted uncertainties are statistical, systematic and due to external inputs, respectively. [...]
arXiv:2007.11292; LHCb-PAPER-2020-012; CERN-EP-2020-124; LHCB-PAPER-2020-012.- Geneva : CERN, 2020-12-23 - 12 p. - Published in : Phys. Rev. D 102 (2020) 112012 Article from SCOAP3: PDF; Fulltext: PDF; Fulltext from Publisher: PDF; Related data file(s): ZIP; Supplementary information: ZIP;
10.
Observation of the Λ0bΛ+cK+Kπ decay / LHCb Collaboration
The Λ0bΛ+cK+Kπ decay is observed for the first time using a data sample of proton-proton collisions at centre-of-mass energies of s=7 and 8 TeV collected by the LHCb detector, corresponding to an integrated luminosity of 3fb1. The ratio of branching fractions between the Λ0bΛ+cK+Kπ and the Λ0bΛ+cDs decays is measured to be B(Λ0bΛ+cK+Kπ)B(Λ0bΛ+cDs)=(9.26±0.29±0.46±0.26)×102, where the first uncertainty is statistical, the second systematic and the third is due to the knowledge of the DsK+Kπ branching fraction. [...]
arXiv:2011.13738; LHCb-PAPER-2020-028; CERN-EP-2020-209; LHCB-PAPER-2020-028; LHCB-PAPER-2020-028.- Geneva : CERN, 2021-04-10 - 20 p. - Published in : Phys. Lett. B 815 (2021) 136172 Article from SCOAP3: PDF; Fulltext: PAPER-LHCb-2020-028-arXiv - PDF; 2011.13738 - PDF; Related data file(s): ZIP;

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