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1.
Observation of exotic J/ψϕJ/ψϕ resonances in diffractive processes in proton-proton collisions / LHCb Collaboration
The first study of J/ψϕJ/ψϕ production in diffractive processes in proton-proton collisions is presented. [...]
arXiv:2407.14301 ; LHCb-PAPER-2023-043 ; CERN-EP-2024-149 ; LHCB-PAPER-2023-043.
- 2024 - 21.
Fulltext - Related data file(s) - Fulltext
2.
Observation of New Charmonium or Charmoniumlike States in <math display="inline"><msup><mi>B</mi><mo>+</mo></msup><mo stretchy="false">→</mo><msup><mi>D</mi><mrow><mo>*</mo><mo>±</mo></mrow></msup><msup><mi>D</mi><mo>∓</mo></msup><msup><mi>K</mi><mo>+</mo></msup></math> Decays / LHCb Collaboration
A study of resonant structures in B+D+DK+B+D+DK+ and B+DD+K+B+DD+K+ decays is performed, using proton-proton collision data at centre-of-mass energies of s=7,8s=7,8, and 1313TeV recorded by the LHCb experiment, corresponding to an integrated luminosity of 9 fb11. A simultaneous amplitude fit is performed to the two channels with contributions from resonances decaying to DD+DD+ and D+DD+D states linked by CC-parity. [...]
arXiv:2406.03156; LHCb-PAPER-2023-047; CERN-EP-2024-096.- Geneva : CERN, 2024-09-27 - 14 p. - Published in : Phys. Rev. Lett. 133 (2024) 131902 Fulltext: LHCb-PAPER-2023-047_arxiv - PDF; 2406.03156 - PDF; Publication - PDF; Related data file(s): ZIP; Supplementary information: ZIP;
3.
Amplitude analysis of the radiative decay B0sK+KγB0sK+Kγ / LHCb Collaboration
A search for radiative decay of B0sB0s mesons to orbitally excited K+KK+K states is performed using proton proton collisions recorded by the \mbox{LHCb}\xspace experiment, corresponding to an integrated luminosity of 9 fb11. The dikaon spectrum in the mass range mKK<2400 MeV/c2mKK<2400 MeV/c2 is dominated by the ϕ(1020)ϕ(1020) resonance that accounts for almost 70%% of the decay rate. [...]
arXiv:2406.00235; LHCb-PAPER-2024-002; CERN-EP-2024-115; LHCB-PAPER-2024-002.- Geneva : CERN, 2024-08-13 - 39 p. - Published in : 10.1007/JHEP08(2024)093 Fulltext: 2406.00235 - PDF; document - PDF; LHCb-PAPER-2024-002_arxiv - PDF; Related data file(s): ZIP; Supplementary information: ZIP;
4.
Search for Time-Dependent <math display="inline"><mi>C</mi><mi>P</mi></math> Violation in <math display="inline"><mrow><msup><mrow><mi>D</mi></mrow><mrow><mn>0</mn></mrow></msup><mo stretchy="false">→</mo><msup><mrow><mi>π</mi></mrow><mrow><mo>+</mo></mrow></msup><msup><mrow><mi>π</mi></mrow><mrow><mo>-</mo></mrow></msup><msup><mrow><mi>π</mi></mrow><mrow><mn>0</mn></mrow></msup></mrow></math> Decays / LHCb Collaboration
A measurement of time-dependent CPCP violation in D0π+ππ0D0π+ππ0 decays using a pppp collision data sample collected by the LHCb experiment in 2012 and from 2015 to 2018, corresponding to an integrated luminosity of 7.7fb1fb1, is presented. The initial flavour of each D0D0 candidate is determined from the charge of the pion produced in the D(2010)+D0π+D(2010)+D0π+ decay. [...]
arXiv:2405.06556; LHCb-PAPER-2024-003; CERN-EP-2024-111; LHCB-PAPER-2024-003.- Geneva : CERN, 2024-09-05 - 12 p. - Published in : Phys. Rev. Lett. 133 (2024) 101803 Fulltext: LHCb-PAPER-2024-003 - PDF; 2405.06556 - PDF; Publication - PDF; Related data file(s): ZIP; Supplementary information: ZIP;
5.
First observation of Λ0bΣ()++cD()KΛ0bΣ()++cD()K decays / LHCb Collaboration
The four decays, Λ0bΣ()++cD()KΛ0bΣ()++cD()K, are observed for the first time using proton-proton collision data collected with the LHCb detector at a centre-of-mass energy of 13TeV13TeV, corresponding to an integrated luminosity of 6fb16fb1. By considering the Λ0bΛ+c¯D0KΛ0bΛ+c¯¯¯¯¯D0K decay as reference channel, the following branching fraction ratios are measured to be, B(Λ0bΣ++cDK)B(Λ0bΛ+c¯D0K)=0.282±0.016±0.016±0.005,B(Λ0bΣ++cDK)B(Λ0bΣ++cDK)=0.460±0.052±0.028,B(Λ0bΣ++cDK)B(Λ0bΣ++cDK)=2.261±0.202±0.129±0.046,B(Λ0bΣ++cDK)B(Λ0bΣ++cDK)=0.896±0.137±0.066±0.018,B(Λ0bΣ++cDK)B(Λ0bΛ+c¯¯¯¯D0K)=0.282±0.016±0.016±0.005,B(Λ0bΣ++cDK)B(Λ0bΣ++cDK)=0.460±0.052±0.028,B(Λ0bΣ++cDK)B(Λ0bΣ++cDK)=2.261±0.202±0.129±0.046,B(Λ0bΣ++cDK)B(Λ0bΣ++cDK)=0.896±0.137±0.066±0.018, where the first uncertainties are statistical, the second are systematic, and the third are due to uncertainties in the branching fractions of intermediate particle decays. [...]
arXiv:2404.19510; LHCb-PAPER-2023-044; CERN-EP-2024-098.- Geneva : CERN, 2024-08-01 - 13 p. - Published in : Phys. Rev. D 110 (2024) L031104 Fulltext: LHCb_PAPER_2023_044 - PDF; Publication - PDF; 2404.19510 - PDF; Related data file(s): ZIP; Supplementary information: ZIP;
6.
Amplitude analysis and branching fraction measurement of B+DD+sπ+B+DD+sπ+ decays / LHCb Collaboration
The decays of the B+B+ meson to the final state DD+sπ+DD+sπ+ are studied in proton-proton collision data collected with the LHCb detector at centre-of-mass energies of 7, 8, and 13 TeV, corresponding to a total integrated luminosity of 9 fb11. The ratio of branching fractions of the B+DD+sπ+B+DD+sπ+ and B0DD+sB0DD+s decays is measured to be 0.173±0.006±0.0100.173±0.006±0.010, where the first uncertainty is statistical and the second is systematic. [...]
arXiv:2405.00098; LHCb-PAPER-2024-001; CERN-EP-2024-110.- Geneva : CERN, 2024-08-21 - 41 p. - Published in : JHEP 2408 (2024) 165 Fulltext: document - PDF; 2405.00098 - PDF; LHCb-PAPER-2024-001 - PDF; Related data file(s): ZIP;
7.
Search for prompt production of pentaquarks in charm hadron final states / LHCb Collaboration
A search for hidden-charm pentaquark states decaying to a range of ΣcˉDΣc¯D and Λ+cˉDΛ+c¯D final states, as well as doubly-charmed pentaquark states to ΣcDΣcD and Λ+cDΛ+cD, is made using samples of proton-proton collision data corresponding to an integrated luminosity of 5.7fb15.7fb1 recorded by the LHCb detector at s=13TeVs=13TeV. Since no significant signals are found, upper limits are set on the pentaquark yields relative to that of the Λ+cΛ+c baryon in the Λ+cpKπ+Λ+cpKπ+ decay mode. [...]
arXiv:2404.07131; LHCb-PAPER-2023-018; CERN-EP-2024-071; LHCB-PAPER-2023-018.- Geneva : CERN, 2024-08-01 - 19 p. - Published in : Phys. Rev. D 110 (2024) 032001 Fulltext: 2404.07131 - PDF; LHCb-PAPER-2023-018 - PDF; Publication - PDF; Related data file(s): ZIP; Supplementary information: PDF;
8.
Observation and branching fraction measurement of the decay ΞbΛ0bπΞbΛ0bπ / LHCb Collaboration
The decay ΞbΛ0bπΞbΛ0bπ is observed using a proton-proton collision data sample collected at center-of-mass energy s=13s=13 TeV with the LHCb detector, corresponding to an integrated luminosity of 5.5 fb11. This process is mediated by the suˉudsu¯ud quark-level transition, where the bb quark in the ΞbΞb baryon is a spectator in the decay. [...]
arXiv:2307.09427; LHCb-PAPER-2023-015; CERN-EP-2023-116; LHCB-PAPER-2023-015.- Geneva : CERN, 2023-10-01 - 16 p. - Published in : Phys. Rev. D 108 (2023) 072002 Fulltext: 2307.09427 - PDF; Publication - PDF; Xib2LbPi_2023_14Aug2023 - PDF; External link: Previous draft version
9.
Amplitude analysis of the Λ0bpKγΛ0bpKγ decay / LHCb Collaboration
The resonant structure of the radiative decay Λ0bpKγΛ0bpKγ in the region of proton-kaon invariant-mass up to 2.5 GeV/c2/c2 is studied using proton-proton collision data recorded at centre-of-mass energies of 7, 8, and 13 TeV collected with the LHCb detector, corresponding to a total integrated luminosity of 9 fb11. Results are given in terms of fit and interference fractions between the different components contributing to this final state. [...]
arXiv:2403.03710; LHCb-PAPER-2023-036; CERN-EP-2023-253; LHCB-PAPER-2023-036.- Geneva : CERN, 2024-06-18 - 39 p.
Fulltext: 2403.03710 - PDF; LHCb-PAPER-2023-036 - PDF; document - PDF; Related data file(s): ZIP; External link: Previous draft version
10.
First observation of the Λ0bD+DΛΛ0bD+DΛ decay / LHCb Collaboration
The Λ0bD+DΛΛ0bD+DΛ decay is observed for the first time using proton-proton collision data collected by the LHCb experiment at a center-of-mass energy of 13TeV13TeV, corresponding to an integrated luminosity of 5.3fb1. Using the B0D+DK0S decay as a reference channel, the product of the relative production cross-section and decay branching fractions is measured to be R=σΛ0bσB0×B(Λ0bD+DΛ)B(B0D+DK0S)=0.179±0.022±0.014 where the first uncertainty is statistical and the second is systematic. [...]
arXiv:2403.03586; LHCb-PAPER-2023-042; CERN-EP-2024-041; LHCB-PAPER-2023-042.- Geneva : CERN, 2024-07-16 - 23 p. - Published in : JHEP 2407 (2024) 140 Fulltext: 2403.03586 - PDF; document - PDF; LHCb-PAPER-2023-042 - PDF; Related data file(s): ZIP; Supplementary information: ZIP;

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