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1.
Λ+c polarimetry using the dominant hadronic mode / LHCb Collaboration
The polarimeter vector field for multibody decays of a spin-half baryon is introduced as a generalisation of the baryon asymmetry parameters. Using a recent amplitude analysis of the Λ+cpKπ+ decay performed at the LHCb experiment, we compute the distribution of the kinematic-dependent polarimeter vector for this process in the space of Mandelstam variables to express the polarised decay rate in a model-agnostic form. [...]
arXiv:2301.07010; LHCb-PAPER-2022-044; CERN-EP-2022-287.- Geneva : CERN, 2023-07-31 - 20 p. - Published in : JHEP 2307 (2023) 228 Fulltext: document - PDF; LHCb-PAPER-2022-044 - PDF; 2301.07010 - PDF; Related data file(s): ZIP;
2.
Associated production of prompt J/ψ and Υ mesons in pp collisions at s=13TeV / LHCb Collaboration
The associated production of prompt J/ψ and Υ mesons in pp collisions at a centre-of-mass energy of s=13TeV is studied using LHCb data, corresponding to an integrated luminosity of 4fb1. The measurement is performed for J/ψ (Υ) mesons with a transverse momentum pT<10(30)GeV/c in the rapidity range 2.0<y<4.5. [...]
arXiv:2305.15580; LHCb-PAPER-2022-047; CERN-EP-2023-078.- Geneva : CERN, 2023-08-17 - 24 p. - Published in : JHEP 2308 (2023) 093 Fulltext: 2305.15580 - PDF; document - PDF; Related data file(s): ZIP;
3.
Measurement of the mass difference and relative production rate of the Ωb and Ξb baryons / LHCb Collaboration
The mass difference between the Ωb and Ξb baryons is measured using proton-proton collision data collected by the LHCb experiment, corresponding to an integrated luminosity of 9fb1, and is found to be m(Ωb)m(Ξb)=248.54±0.51(stat)±0.38(syst)MeV/c2. The mass of the Ωb baryon is measured to be \begin{equation} m(\Omega^-_b)= 6045.9 \pm 0.5 \textrm{(stat)} \pm 0.6 \textrm{(syst)} \, \textrm{MeV}/c^2. [...]
arXiv:2305.15329; LHCb-PAPER-2022-053; CERN-EP-2023-086.- Geneva : CERN, 2023-09-01 - 23 p. - Published in : Phys. Rev. D 108 (2023) 052008 Fulltext: Publication - PDF; 2305.15329 - PDF; Related data file(s): ZIP;
4.
The LHCb upgrade I / LHCb Collaboration
The LHCb upgrade represents a major change of the experiment. The detectors have been almost completely renewed to allow running at an instantaneous luminosity five times larger than that of the previous running periods. [...]
arXiv:2305.10515; LHCb-DP-2022-002.- 2024-05-23 - 232 p. - Published in : JINST 19 (2024) P05065 Fulltext: document - PDF; 2305.10515 - PDF;
In : The Large Hadron Collider and The Experiments for Run 3
5.
Measurement of Ξ+c production in pPb collisions at sNN=8.16 TeV at LHCb / LHCb Collaboration
A study of prompt Ξ+c production in proton-lead collisions is performed with the LHCb experiment at a centre-of-mass energy per nucleon pair of 8.16 TeV in 2016 in pPb and Pbp collisions with an estimated integrated luminosity of approximately 12.5 and 17.4 nb1, respectively. The Ξ+c production cross-section, as well as the Ξ+c to Λ+c production cross-section ratio, are measured as a function of the transverse momentum and rapidity and compared to latest theory predictions. [...]
arXiv:2305.06711; LHCb-PAPER-2022-041; CERN-EP-2023-057.- Geneva : CERN, 2024-04-01 - 20 p. - Published in : Phys. Rev. C 109 (2024) 044901 Fulltext: Publication - PDF; 2305.06711 - PDF; Related data file(s): ZIP; Supplementary information: ZIP;
6.
Test of lepton flavour universality using B0Dτ+ντ decays with hadronic τ channels / LHCb Collaboration
The branching fraction B(B0Dτ+ντ) is measured relative to that of the normalisation mode B0Dπ+ππ+ using hadronic τ+π+ππ+(π0)ˉντ decays in proton-proton collision data at a centre-of-mass energy of 13 TeV collected by the LHCb experiment, corresponding to an integrated luminosity of 2 fb1. The measured ratio is B(B0Dτ+ντ)/B(B0Dπ+ππ+)=1.79±0.11±0.11, where the first uncertainty is statistical and the second is related to systematic effects. [...]
arXiv:2305.01463; LHCb-PAPER-2022-052; CERN-EP-2023-062.- Geneva : CERN, 2023-07-01 - 18 p. - Published in : Phys. Rev. D Fulltext: LHCb-PAPER-2022-052 - PDF; Publication - PDF; 2305.01463 - PDF; Related data file(s): ZIP;
7.
Study of charmonium decays to K0SKπ in the B(K0SKπ)K channels / LHCb Collaboration
A study of the B+K0SK+Kπ+ and B+K0SK+K+π decays is performed using proton-proton collisions at center-of-mass energies of 7, 8 and 13 TeV at the LHCb experiment. The K0SKπ invariant mass spectra from both decay modes reveal a rich content of charmonium resonances. [...]
arXiv:2304.14891; LHCb-PAPER-2022-051; CERN-EP-2023-060.- Geneva : CERN, 2023-08-01 - 60 p. - Published in : Phys. Rev. D 108 (2023) 032010 Fulltext: Publication - PDF; 2304.14891 - PDF; LHCb-PAPER-2022-051 - PDF; Related data file(s): ZIP;
8.
Measurement of the <math display="inline"><mrow><msubsup><mrow><mi mathvariant="normal">Λ</mi></mrow><mrow><mi>b</mi></mrow><mrow><mn>0</mn></mrow></msubsup><mo stretchy="false">→</mo><mi mathvariant="normal">Λ</mi><mo stretchy="false">(</mo><mn>1520</mn><mo stretchy="false">)</mo><msup><mrow><mi>μ</mi></mrow><mrow><mo>+</mo></mrow></msup><msup><mrow><mi>μ</mi></mrow><mrow><mo>-</mo></mrow></msup></mrow></math> Differential Branching Fraction / LHCb Collaboration
The branching fraction of the rare decay Λ0bΛ(1520)μ+μ is measured for the first time, in the squared dimuon mass intervals, q2, excluding the J/ψ and ψ(2S) regions. The data sample analyzed was collected by the LHCb experiment at center-of-mass energies of 7, 8, and 13 TeV, corresponding to a total integrated luminosity of 9fb1. [...]
arXiv:2302.08262; LHCb-PAPER-2022-050; CERN-EP-2023-007.- Geneva : CERN, 2023-10-10 - 12 p. - Published in : Phys. Rev. Lett. 131 (2023) 151801 Fulltext: 2302.08262 - PDF; LHCb-PAPER-2022-050 - PDF; Publication - PDF; Related data file(s): ZIP;
9.
Measurement of the ratios of branching fractions R(D) and R(D0) / LHCb Collaboration
The ratios of branching fractions R(D)B(ˉBDτˉντ)/B(ˉBDμˉνμ) and R(D0)B(BD0τˉντ)/B(BD0μˉνμ) are measured, assuming isospin symmetry, using a sample of proton-proton collision data corresponding to 3.0 fb1 of integrated luminosity recorded by the LHCb experiment during 2011 and 2012. The tau lepton is identified in the decay mode τμντˉνμ. [...]
arXiv:2302.02886; LHCb-PAPER-2022-039; CERN-EP-2022-284.- Geneva : CERN, 2023-09-13 - 13 p. - Published in : Phys. Rev. Lett. 131 (2023) 111802 Fulltext: LHCb-PAPER-2022-039 - PDF; Publication - PDF; 2302.02886 - PDF; Related data file(s): ZIP; Supplementary information: ZIP;
10.
A study of CP violation in the decays B±[K+Kπ+π]Dh± (h=K,π) and B±[π+ππ+π]Dh± / LHCb Collaboration
The first study of CP violation in the decay mode B±[K+Kπ+π]Dh±, with h=K,π, is presented, exploiting a data sample of proton-proton collisions collected by the LHCb experiment that corresponds to an integrated luminosity of 9 fb1. The analysis is performed in bins of phase space, which are optimised for sensitivity to local CP asymmetries. [...]
arXiv:2301.10328; LHCb-PAPER-2022-037; CERN-EP-2022-285.- Geneva : CERN, 2023-06-29 - 28 p. - Published in : Eur. Phys. J. C
Fulltext: 2301.10328 - PDF; Publication - PDF; Related data file(s): ZIP; Supplementary information: ZIP;

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697 Lusiani, A
94 Lusiani, A.
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