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CERN Document Server Sök i 243 journaler efter:  1 - 10nästaslut  gå till journal: Sökningen tog 0.81 sekunder. 
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 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;
3.
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;
4.
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;
5.
Search for time-dependent CP violation in D0K+K and D0π+π decays / LHCb Collaboration
A search for time-dependent violation of the charge-parity symmetry in D0K+K and D0π+π decays is performed at the LHCb experiment using proton-proton collision data recorded from 2015 to 2018 at a centre-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 6 fb1. The D0 meson is required to originate from a D(2010)+D0π+ decay, such that its flavour at production is identified by the charge of the accompanying pion. [...]
arXiv:2105.09889; LHCb-PAPER-2020-045; CERN-EP-2021-060; LHCB-PAPER-2020-045.- Geneva : CERN, 2021-10-01 - 39 p. - Published in : Phys. Rev. D 104 (2021) 072010 Fulltext: 2105.09889 - PDF; LHCb-PAPER-2020-045 - PDF; Fulltext from publisher: PDF; Related data file(s): ZIP; Supplementary information: ZIP;
6.
Angular analysis of B0DD+s with D+sD+sγ decays / LHCb Collaboration
The first full angular analysis of the B0DD+s decay is performed using 6 fb1 of pp collision data collected with the LHCb experiment at a centre-of-mass energy of 13 TeV. The D+sD+sγ and DˉD0π vector meson decays are used with the subsequent D+sK+Kπ+ and ˉD0K+π decays. [...]
arXiv:2105.02596; LHCb-PAPER-2021-006; CERN-EP-2021-056; LHCB-PAPER-2021-006.- Geneva : CERN, 2021-06-29 - 31 p. - Published in : JHEP 2106 (2021) 177 Fulltext: LHCb-PAPER-2021-006 - PDF; document - PDF; 2105.02596 - PDF; Related data file(s): ZIP;
7.
Measurement of CP asymmetry in D0K0SK0S decays / LHCb Collaboration
A measurement of the CP asymmetry in D0K0SK0S decays is reported, based on a data sample of proton-proton collisions collected by the LHCb experiment from 2015 to 2018, corresponding to an integrated luminosity of 6 fb1. The flavor of the D0 candidate is determined using the charge of the D± meson, from which the decay is required to originate. [...]
arXiv:2105.01565; LHCb-PAPER-2020-047; CERN-EP-2021-058; LHCB-PAPER-2020-047.- Geneva : CERN, 2021-08-01 - 11 p. - Published in : Phys. Rev. D 104 (2021) L031102 Fulltext: LHCb-PAPER-2020-047 - PDF; 2105.01565 - PDF; Fulltext from publisher: PDF; Related data file(s): ZIP; Supplementary information: ZIP;
8.
Search for the doubly heavy baryons Ω0bc and Ξ0bc decaying to Λ+cπ and Ξ+cπ / LHCb Collaboration
The first search for the doubly heavy Ω0bc baryon and a search for Ξ0bc baryon are performed using pp collision data collected with the LHCb experiment from 2016 to 2018 at a centre-of-mass energy of 13TeV, corresponding to an integrated luminosity of 5.2fb1. The baryons are reconstructed via their decays to Λ+cπ and Ξ+cπ. [...]
arXiv:2104.04759; LHCb-PAPER-2021-002; CERN-EP-2021-046; LHCB-PAPER-2021-002.- Geneva : CERN, 2021-08-31 - 13 p. - Published in : Chin. Phys. C 45 (2021) 093002 Fulltext: document - PDF; 2104.04759 - PDF; Related data file(s): ZIP;
9.
Test of lepton universality in beauty-quark decays / LHCb Collaboration
The Standard Model of particle physics currently provides our best description of fundamental particles and their interactions. The theory predicts that the different charged leptons, the electron, muon and tau, have identical electroweak interaction strengths. [...]
arXiv:2103.11769; LHCb-PAPER-2021-004; CERN-EP-2021-042.- Geneva : CERN, 2022-03-15 - 25 p. - Published in : Nature Phys. Fulltext: LHCb-PAPER-2021-004 - PDF; Addendum - PDF; Publication - PDF; 2103.11769 - PDF; Related data file(s): ZIP; Supplementary information: ZIP; External links: CERN News article; LHCb News article; Interactions.org article; BBC News article; Scientific American article
10.
Search for CP violation in D+(s)h+π0 and D+(s)h+η decays / LHCb Collaboration
Searches for CP violation in the two-body decays D+(s)h+π0 and D+(s)h+η (where h+ denotes a π+ or K+ meson) are performed using pp collision data collected by the LHCb experiment corresponding to either 9 fb1 or 6 fb1 of integrated luminosity. The π0 and η mesons are reconstructed using the e+eγ final state, which can proceed as three-body decays π0e+eγ and ηe+eγ, or via the two-body decays π0γγ and ηγγ followed by a photon conversion. [...]
arXiv:2103.11058; LHCb-PAPER-2021-001; CERN-EP-2021-036; LHCB-PAPER-2021-001.- Geneva : CERN, 2021-06-03 - 25 p. - Published in : JHEP 2106 (2021) 019 Article from SCOAP3: PDF; Fulltext: PDF; Preprint: PDF; Related data file(s): ZIP; Supplementary information: ZIP;

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