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CERN Document Server 619 のレコードが見つかりました。  1 - 10次最後  レコードへジャンプ: 検索にかかった時間: 1.22 秒 
1.
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
2.
A survey of NbTi conductor status / Billinge, R ; Seyfert, P ; Turowski, Μ ; Vaccarone, R
CERN-PS-85-46-DL; CERN-LHC-Note-29.- Geneva : CERN, 1985 - 6 p. Fulltext: PDF;
3.
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;
4.
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;
5.
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;
6.
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;
7.
Search for the radiative ΞbΞγ decay / LHCb Collaboration
The first search for the rare radiative decay ΞbΞγ is performed using data collected by the LHCb experiment in proton-proton collisions at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 5.4 fb1. The ΞbΞJ/ψ channel is used as normalization. [...]
arXiv:2108.07678; LHCb-PAPER-2021-017; CERN-EP-2021-128; LHCB-PAPER-2021-017.- 2022-01-14 - 20 p. - Published in : JHEP 2201 (2022) 069 Fulltext: 2108.07678 - PDF; document - PDF; Related data file(s): ZIP;
8.
Evidence for a new structure in the J/ψp and J/ψˉp systems in B0sJ/ψpˉp decays / LHCb Collaboration
An amplitude analysis of flavour-untagged B0sJ/ψpˉp decays is performed using a sample of 797±31 decays reconstructed with the LHCb detector. The data, collected in proton-proton collisions between 2011 and 2018, correspond to an integrated luminosity of 9 fb1. [...]
arXiv:2108.04720; LHCb-PAPER-2021-018; CERN-EP-2021-150; LHCB-PAPER-2021-018.- Geneva : CERN, 2022-02-07 - 11 p. - Published in : Phys. Rev. Lett. 128 (2022) 062001 Fulltext: LHCb-PAPER-2021-018_arxiv - PDF; PhysRevLett.128.062001 - PDF; 2108.04720 - PDF; Related data file(s): ZIP; Supplementary information: ZIP;
9.
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;
10.
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;

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