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1.
Up and Down Quark Structure of the Proton / D0 Collaboration
We measure proton structure parameters sensitive primarily to valence quarks using 8.6 fb1 of data collected by the D0 detector in s=1.96 TeV pˉp collisions at the Fermilab Tevatron. We exploit the property of the forward-backward asymmetry in dilepton events to be factorized in to distinct structure parameters and electroweak quark-level asymmetries. [...]
arXiv:2403.09331; FERMILAB-PUB-24-0106.- 2024-11-01 - 9 p. - Published in : Phys. Rev. D 110 (2024) L091101 Fulltext: 2403.09331 - PDF; ac6e837b76b62c6abd0c093880b8f7a2 - PDF; Fulltext from Publisher: PDF; External link: Fermilab Library Server
2.
Observation of the B+J/ψηK+ decay / LHCb Collaboration
The B+J/ψηK+ decay is observed for the first time using proton-proton collision data collected by the LHCb experiment at centre-of-mass energies of 7, 8, and 13TeV, corresponding to a total integrated luminosity of 9fb1. The branching fraction of this decay is measured relative to the known branching fraction of the B+ψ(2S)K+ decays and found to be B(B+J/ψηK+)B(B+ψ(2S)K+)=(4.91±0.47±0.29±0.07)×102, where the first uncertainty is statistical, the second is systematic and the third is related to external branching fractions. [...]
arXiv:2303.09443; LHCb-PAPER-2022-054; CERN-EP-2023-022.- Geneva : CERN, 2023-08-25 - 19 p. Fulltext: Publication - PDF; 2303.09443 - PDF; Erratum - PDF; Related data file(s): ZIP;
3.
Observation of the B0sχc1(3872)π+π decay / LHCb Collaboration
The first observation of the B0s(χc1(3872)J/ψπ+π)π+π decay is reported using proton-proton collision data, corresponding to integrated luminosities of 1, 2 and 6fb1, collected by the LHCb experiment at centre-of-mass energies of 7, 8 and 13TeV, respectively. The ratio of branching fractions relative to the B0s(ψ(2S)Jψπ+π)π+π decay is measured to be B(B0sχc1(3872)π+π)×B(χc1(3872)Jψπ+π)B(B0sψ(2S)π+π)×B(ψ(2S)Jψπ+π)=(6.8±1.1±0.2)×102, where the first uncertainty is statistical and the second systematic. [...]
arXiv:2302.10629; CERN-EP-2023-015; LHCb-PAPER-2022-049; LHcb-PAPER-2022-049.- Geneva : CERN, 2023-07-11 - 18 p. - Published in : JHEP 2307 (2023) 084 Fulltext: LHCb-PAPER-2022-049 - PDF; 2302.10629 - PDF; document - PDF; Related data file(s): ZIP;
4.
First measurement of Zμ+μ angular coefficients in the forward region of pp collisions at s=13 TeV / LHCb Collaboration
The first study of the angular distribution of μ+μ pairs produced in the forward rapidity region via the Drell-Yan reaction ppγ/Z+Xl+l+X is presented, using data collected with the LHCb detector at a centre-of-mass energy of 13TeV, corresponding to an integrated luminosity of 5.1 fb1. The coefficients of the five leading terms in the angular distribution are determined as a function of the dimuon transverse momentum and rapidity. [...]
arXiv:2203.01602; LHCb-PAPER-2021-048; CERN-EP-2022-030; LHCB-PAPER-2021-048.- 2022-08-24 - 11 p. - Published in : Phys. Rev. Lett. 129 (2022) 091801 Fulltext: PDF; Related data file(s): ZIP; External link: Previous draft version
5.
Search for the lepton-flavour violating decays B0K0μ±e and B0sϕμ±e / LHCb Collaboration
A search for the lepton-flavour violating decays B0K0μ±e and B0sϕμ±e is presented, using proton-proton collision data collected by the LHCb detector at the LHC, corresponding to an integrated luminosity of 9fb1. No significant signals are observed and upper limits of B(B0K0μ+e)<15.7×109 (6.9×109),B(B0K0μe+)<16.8×109 (7.9×109),B(B0K0μ±e)<10.1×109 (11.7×109),B(B0sϕμ±e)<16.0×109 (19.8×109) are set at 90% (95%) confidence level. [...]
arXiv:2207.04005; LHCb-PAPER-2022-008; CERN-EP-2022-097; LHCB-PAPER-2022-008.- Geneva : CERN, 2023-06-14 - 18 p. - Published in : JHEP 2306 (2023) 073 Fulltext: document - PDF; 2207.04005 - PDF; LHCb-PAPER-2022-008_v2.1 - PDF; Related data file(s): ZIP;
6.
Measurement of the charm mixing parameter yCPyKπCP using two-body D0 meson decays / LHCb Collaboration
A measurement of the ratios of the effective decay widths of D0ππ+ and D0KK+ decays over that of D0Kπ+ decays is performed with the LHCb experiment using proton-proton collisions at a centre-of-mass energy of 13TeV, corresponding to an integrated luminosity of 6fb1. These observables give access to the charm mixing parameters yππCPyKπCP and yKKCPyKπCP, and are measured as yππCPyKπCP=(6.57±0.53±0.16)×103, yKKCPyKπCP=(7.08±0.30±0.14)×103, where the first uncertainties are statistical and the second systematic. [...]
arXiv:2202.09106; LHCb-PAPER-2021-041; CERN-EP-2022-022; LHCB-PAPER-2021-041.- 2022-05-01 - 27 p. - Published in : Phys. Rev. D 105 (2022) 092013 Fulltext: PhysRevD.105.092013 - PDF; 2202.09106 - PDF; LHCb-PAPER-2021-041 - PDF; Related data file(s): ZIP; Supplementary information: ZIP;
7.
Observation of the doubly charmed baryon decay Ξ++ccΞ+cπ+ / LHCb Collaboration
The Ξ++ccΞ+cπ+ decay is observed using proton-proton collisions collected by the LHCb experiment at a centre-of-mass energy of 13TeV, corresponding to an integrated luminosity of 5.4fb1. The Ξ++ccΞ+cπ+ decay is reconstructed partially, where the photon from the Ξ+cΞ+cγ decay is not reconstructed and the pKπ+ final state of the Ξ+c baryon is employed. [...]
arXiv:2202.05648; LHCb-PAPER-2021-052; CERN-EP-2022-016.- 2022-05-06 - 19 p. - Published in : JHEP 2205 (2022) 038 Fulltext: LHCb-PAPER-2021-052_to_arXiv_ - PDF; document - PDF; 2202.05648 - PDF; Related data file(s): ZIP; Supplementary information: ZIP;
8.
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;
9.
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;
10.
Observation of the decay Λ0bΛ+cτ¯ντ / LHCb Collaboration
The first observation of the semileptonic b-baryon decay Λ0bΛ+cτ¯ντ, with a significance of 6.1σ, is reported using a data sample corresponding to 3 fb1 of integrated luminosity, collected by the LHCb experiment at centre-of-mass energies of 7 and 8~TeV at the LHC. The τ lepton is reconstructed in the hadronic decay to three charged pions. [...]
arXiv:2201.03497; LHCb-PAPER-2021-044; CERN-EP-2021-265; LHCB-PAPER-2021-044.- Geneva : CERN, 2022-05-13 - 21 p. - Published in : Phys. Rev. Lett. 128 (2022) 191803 Fulltext: 2201.03497 - PDF; PhysRevLett.128.191803 - PDF; Related data file(s): ZIP; Supplementary material: ZIP;

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381 Alkhazov, G
28 Alkhazov, G D
37 Alkhazov, Georgiy D
1 Alkhazov, Georgiy D.
515 Alkhazov, Georgy
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