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1.
Centrality determination in heavy-ion collisions with the LHCb detector / LHCb Collaboration
The centrality of heavy-ion collisions is directly related to the medium created therein. A procedure to determine the centrality of collisions with the LHCb detector is implemented for lead-lead collisions at sNN=5TeV and lead-neon fixed-target collisions at sNN=69GeV. [...]
arXiv:2111.01607; CERN-LHCb-DP-2021-002.- 2022-05-05 - 31 p. - Published in : JINST 17 (2022) P05009 Fulltext: 2111.01607 - PDF; document - PDF;
2.
Measurement of the Nuclear Modification Factor and Prompt Charged Particle Production in pPb and pp Collisions at sNN=5  TeV / LHCb Collaboration
The production of prompt charged particles in proton-lead collisions and in proton-proton collisions at the nucleon-nucleon centre-of-mass energy sNN=5TeV is studied at LHCb as a function of pseudorapidity (η) and transverse momentum (pT) with respect to the proton beam direction. The nuclear modification factor for charged particles is determined as a function of η between 4.8<η<2.5 (backward region) and 2.0<η<4.8 (forward region), and pT between 0.2<pT<8.0GeV/c. [...]
arXiv:2108.13115; LHCb-PAPER-2021-015; CERN-EP-2021-130; LHCB-PAPER-2021-015.- Geneva : CERN, 2022-04-07 - 12 p. - Published in : Phys. Rev. Lett. 128 (2022) 142004 Fulltext: PDF; Related data file(s): ZIP; Supplementary information: ZIP;
3.
Measurement of the B0sμ+μ decay properties and search for the B0μ+μ and B0sμ+μγ decays / LHCb Collaboration
An improved measurement of the decay B0sμ+μ and searches for the decays B0μ+μ and B0sμ+μγ are performed at the LHCb experiment using data collected in proton-proton collisions at s=7, 8 and 13 TeV, corresponding to integrated luminosities of 1, 2 and 6 fb1, respectively. The B0sμ+μ branching fraction and effective lifetime are measured to be B(B0sμ+μ)=(3.09+0.46+0.150.430.11)×109 and τ(B0sμ+μ)=(2.07±0.29±0.03) ps, respectively, where the uncertainties include both statistical and systematic contributions. [...]
arXiv:2108.09283; CERN-EP-2021-133; LHCb-PAPER-2021-008; LHCB-PAPER-2021-008.- 2022-01-01 - 52 p. - Published in : Phys. Rev. D 105 (2022) 012010 Fulltext: PhysRevD.105.012010 - PDF; 2108.09283 - PDF; Related data file(s): ZIP; Supplementary information: ZIP;
4.
Analysis of neutral B-meson decays into two muons / LHCb Collaboration
Branching fraction and effective lifetime measurements of the rare decay B0sμ+μ and searches for the decays B0μ+μ and B0sμ+μγ are reported using proton-proton collision data collected with the LHCb detector at centre-of-mass energies of 7 TeV, 8 TeV and 13 TeV, corresponding to a luminosity of 9 fb1. The branching fraction B(B0sμ+μ)=(3.09+0.46+0.150.430.11)×109 and the effective lifetime τ(B0sμ+μ)=(2.07±0.29±0.03) are measured, where the first uncertainty is statistical and the second systematic. [...]
arXiv:2108.09284; CERN-CERN-EP-2021-132; LHCb-PAPER-2021-007; LHCB-PAPER-2021-007.- Geneva : CERN, 2022-01-25 - 20 p. - Published in : Phys. Rev. Lett. 128 (2022) 041801 Fulltext: 2108.09284 - PDF; PhysRevLett.128.041801 - PDF; Related data file(s): ZIP;
5.
J/ψ photoproduction in Pb-Pb peripheral collisions at sNN= 5 TeV / LHCb Collaboration
The photo-production of J/ψ mesons at low transverse momentum is studied in peripheral lead-lead collisions collected by the LHCb experiment at a centre-of-mass energy per nucleon pair of 5 TeV, corresponding to an integrated luminosity of 210 μb1. The J/ψ candidates are reconstructed through the prompt decay into two muons of opposite charge in the rapidity region of 2.0<y<4.5. [...]
arXiv:2108.02681; LHCb-PAPER-2020-043; CERN-EP-2021-122; LHCB-PAPER-2020-043.- Geneva : CERN, 2022-03-03 - 10 p. - Published in : Phys. Rev. C 105 (2022) L032201 Fulltext: LHCb-PAPER-2020-043 - PDF; 2108.02681 - PDF; Fulltext from publisher: PDF; Related data file(s): ZIP; Supplementary information: ZIP;
6.
Measurement of prompt charged-particle production in pp collisions at s=13TeV / LHCb Collaboration
The differential cross-section of prompt inclusive production of long-lived charged particles in proton-proton collisions is measured using a data sample recorded by the LHCb experiment at a centre-of-mass energy of s=13TeV. The data sample, collected with an unbiased trigger, corresponds to an integrated luminosity of 5.4nb1. [...]
arXiv:2107.10090; LHCb-PAPER-2021-010; CERN-EP-2021-110; LHCB-PAPER-2021-010.- Geneva : CERN, 2022-01-27 - 35 p. - Published in : JHEP 2201 (2022) 166 Fulltext: LHCb-PAPER-2021-010 - PDF; 2107.10090 - PDF; document - PDF; Fulltext from publisher - PDF; Related data file(s): ZIP; Supplementary information: ZIP;
7.
Observation of excited Ω0c baryons in ΩbΞ+cKπdecays / LHCb Collaboration
The first observation of the ΩbΞ+cKπ decay is reported 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. Four excited Ω0c baryons are observed in the Ξ+cK mass projection of the ΩbΞ+cKπ decays with significance exceeding five standard deviations. [...]
arXiv:2107.03419; CERN-EP-2021-109; LHCb-PAPER-2021-012; LHCB-PAPER-2021-012.- Geneva : CERN, 2021-11-01 - 28 p. - Published in : Phys. Rev. D 104 (2021) L091102 Fulltext: 2107.03419 - PDF; PhysRevD.104.L091102 - PDF; Related data file(s): ZIP;
8.
Study of coherent J/ψ production in lead-lead collisions at sNN=5 TeV / LHCb Collaboration
Coherent production of J/ψ mesons is studied in ultraperipheral lead-lead collisions at a nucleon-nucleon centre-of-mass energy of 5 TeV, using a data sample collected by the LHCb experiment corresponding to an integrated luminosity of about 10 μb1. The J/ψ mesons are reconstructed in the dimuon final state and are required to have transverse momentum below 1 GeV. [...]
arXiv:2107.03223; CERN-CERN-EP-2021-108; LHCb-PAPER-2021-013; LHCB-PAPER-2021-013.- Geneva : CERN, 2022-07-19 - 19 p. - Published in : JHEP 2207 (2022) 117 Fulltext: LHCb-PAPER-2021-013_arxiv - PDF; document - PDF; 2107.03223 - PDF; Related data file(s): ZIP; Supplementary information: ZIP;
9.
Observation of the Mass Difference Between Neutral Charm-Meson Eigenstates / LHCb Collaboration
A measurement of mixing and CP violation in neutral charm mesons is performed using data reconstructed in proton-proton collisions collected by the LHCb experiment from 2016 to 2018, corresponding to an integrated luminosity of 5.4fb1. A total of 30.6 million D0K0Sπ+π decays are analyzed using a method optimized for the measurement of the mass difference between neutral charm-meson eigenstates. [...]
arXiv:2106.03744; LHCb-PAPER-2021-009; CERN-EP-2021-099; LHCB-PAPER-2021-009.- Geneva : CERN, 2021-09-07 - 12 p. - Published in : Phys. Rev. Lett. Fulltext: LHCb-PAPER-2021-009_v3 - PDF; 2106.03744 - PDF; Fulltext from publisher: PDF; Related data file(s): ZIP; Supplementary information: ZIP;
10.
First measurement of the CP-violating phase in B0sJ/ψ(e+e)ϕ decays / LHCb Collaboration
A flavour-tagged time-dependent angular analysis of B0sJ/ψϕ decays is presented where the J/ψ meson is reconstructed through its decay to an e+e pair. The analysis uses a sample of pp collision data recorded with the LHCb experiment at centre-of-mass energies of 7 and 8 TeV, corresponding to an integrated luminosity of 3 fb1. [...]
arXiv:2105.14738; LHCb-PAPER-2020-042; CERN-EP-2021-064; LHCB-PAPER-2020-042.- Geneva : CERN, 2021-11-24 - 28 p. - Published in : Eur. Phys. J. C 81 (2021) 1026 Fulltext: document - PDF; LHCb-PAPER-2020-042 - PDF; 2105.14738 - PDF; Related data file(s): ZIP; Supplementary information: ZIP;

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Veja também: nomes de autores similares
1 Stefko, P
328 Stefko, Pavol
328 Štefko, Pavol
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