CERN Accelerating science

CERN Document Server 343 registres trobats  1 - 10següentfinal  anar al registre: La cerca s'ha fet en 0.52 segons. 
1.
Search for CPCP violation in Ξ+cpKπ+ decays using model-independent techniques / LHCb Collaboration
A first search for CP violation in the Cabibbo-suppressed Ξ+cpKπ+ decay is performed using both a binned and an unbinned model-independent technique in the Dalitz plot. The studies are based on a sample of proton-proton collision data, corresponding to an integrated luminosity of 3.0 fb1, and collected by the LHCb experiment at centre-of-mass energies of 7 and 8 TeV. [...]
arXiv:2006.03145; CERN-EP-2020-069; LHCb-PAPER-2019-026; LHCB-PAPER-2019-026.- Geneva : CERN, 2020-10-26 - 16 p. - Published in : Eur. Phys. J. C 80 (2020) 986 Article from SCOAP3: PDF; Fulltext: PDF; Related data file(s): ZIP;
2.
Precision measurement of the B+c meson mass / LHCb Collaboration
A precision measurement of the B+c meson mass is performed using proton-proton collision data collected with the LHCb experiment at centre-of-mass energies of 7,8 and 13 TeV, corresponding to a total integrated luminosity of 9.0 fb1. The B+c mesons are reconstructed via the decays B+cJ/ψπ+, B+cJ/ψπ+ππ+, B+cJ/ψpˉpπ+, B+cJ/ψD+s, B+cJ/ψD0K+ and B+cB0sπ+. [...]
arXiv:2004.08163; LHCb-PAPER-2020-003; CERN-EP-2020-048; LHCB-PAPER-2020-003.- Geneva : CERN, 2020-07-20 - 21 p. - Published in : JHEP 2007 (2020) 123 Article from SCOAP3: PDF; Fulltext: LHCb-PAPER-2020-003_arXiv - PDF; 2004.08163 - PDF; Related data file(s): ZIP;
3.
Observation of new Ξ0c baryons decaying to Λ+cK / LHCb Collaboration
The Λ+cK mass spectrum is studied with a data sample of pp collisions at a centre-of-mass energy of 13 TeV corresponding to an integrated luminosity of 5.6 fb1 collected by the LHCb experiment. Three Ξ0c states are observed with a large significance and their masses and natural widths are measured to be m(Ξc(2923)0)=2923.04±0.25±0.20±0.14 MeV,Γ(Ξc(2923)0)=7.1±0.8±1.8 MeV, m(Ξc(2939)0)=2938.55±0.21±0.17±0.14 MeV,Γ(Ξc(2939)0)=10.2±0.8±1.1 MeV, m(Ξc(2965)0)=2964.88±0.26±0.14±0.14 MeV,Γ(Ξc(2965)0)=14.1±0.9±1.3 MeV, where the uncertainties are statistical, systematic, and due to the limited knowledge of the Λ+c mass. [...]
arXiv:2003.13649; LHCb-PAPER-2020-004; CERN-EP-2020-038; LHCB-PAPER-2020-004.- Geneva : CERN, 2020-06-05 - 11 p. - Published in : Phys. Rev. Lett. Article from SCOAP3: PDF; Fulltext: LHCb_PAPER_2020_004_arXiv - PDF; 2003.13649 - PDF; Fulltext from Publisher: PDF; Related data files: ZIP; Supplementary information: ZIP;
4.
Measurement of the shape of the B0sDsμ+νμ differential decay rate / LHCb Collaboration
The shape of the B0sDsμ+νμ differential decay rate is obtained as a function of the hadron recoil using proton-proton collision data at a centre-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 1.7 fb1 collected by the LHCb detector. The B0sDsμ+νμ decay is reconstructed through the decays DsDsγ and DsKK+π. [...]
arXiv:2003.08453; LHCb-PAPER-2019-046; CERN-EP-2020-026; LHCB-PAPER-2019-046.- Geneva : CERN, 2020-12-22 - 32 p. - Published in : JHEP 2012 (2020) 144 Article from SCOAP3: PDF; Fulltext: 2003.08453 - PDF; LHCb-PAPER-2019-046 - PDF; Related data files: ZIP; Supplementary material: ZIP;
5.
Search for the lepton flavour violating decay B+K+μτ+ using B0s2 decays / LHCb Collaboration
A search is presented for the lepton flavour violating decay B+K+μτ+ using a sample of proton--proton collisions at centre-of-mass energies of 7, 8, and 13 TeV, collected with the LHCb detector and corresponding to a total integrated luminosity of 9 fb1. The τ leptons are selected inclusively, primarily via decays with a single charged particle. [...]
arXiv:2003.04352; LHCb-PAPER-2019-043; CERN-EP-2020-020; LHCB-PAPER-2019-043.- Geneva : CERN, 2020-06-22 - 19 p. - Published in : JHEP 2006 (2020) 129 Article from SCOAP3: PDF; Fulltext: LHCb-PAPER-2019-043 - PDF; 2003.04352 - PDF; Related data file(s): ZIP;
6.
Measurement of CP-averaged observables in the B0K0μ+μ decay / LHCb Collaboration
An angular analysis of the B0K0(K+π)μ+μ decay is presented using a data set corresponding to an integrated luminosity of 4.7fb1 of pp collision data collected with the LHCb experiment. The full set of CP-averaged observables are determined in bins of the invariant mass squared of the dimuon system. [...]
arXiv:2003.04831; LHCb-PAPER-2020-002; CERN-EP-2020-027; LHCB-PAPER-2020-002.- Geneva : CERN, 2020-07-02 - 13 p. - Published in : Phys. Rev. Lett. 125 (2020) 011802 Article from SCOAP3: PDF; Fulltext: 2003.04831 - PDF; LHCb_PAPER_2020_002 - PDF; Fulltext from Publisher: PDF; Supplementary material: ZIP;
7.
Search for the rare decays B0se+e and B0e+e / LHCb Collaboration
A search for the decays B0se+e and B0e+e is performed using data collected with the LHCb experiment in proton-proton collisions at center-of-mass energies of 7, 8 and 13TeV, corresponding to integrated luminosities of 1, 2 and 2fb1, respectively. No signal is observed. [...]
arXiv:2003.03999; LHCb-PAPER-2020-001; CERN-EP-2020-023; LHCB-PAPER-2020-001.- Geneva : CERN, 2020-05-28 - 11 p. - Published in : Phys. Rev. Lett. 124 (2020) 211802 Article from SCOAP3: PDF; Fulltext: PDF; Fulltext from Publisher: PDF; Fulltext from publisher: PDF; Related data file(s): ZIP; Supplementary information: ZIP;
8.
Measurement of CP observables in B±DK± and B±Dπ± with DK0SK±π decays / LHCb Collaboration
Measurements of CP observables in B±DK± and B±Dπ± decays are presented, where D represents a superposition of D0 and ˉD0 states. The D meson is reconstructed in the three-body final state K0SK±π. [...]
arXiv:2002.08858; LHCB-PAPER-2019-044; LHCB-PAPER-2019-044-003; LHCb-PAPER-2019-044; CERN-EP-2020-015; LHCB-PAPER-2019-044.- Geneva : CERN, 2020-06-08 - 26 p. Article from SCOAP3: PDF; Fulltext: PDF; Related data file(s): ZIP;
9.
Measurement of the branching fraction of the decay B0sK0SK0S / LHCb Collaboration
A measurement of the branching fraction of the decay B0sK0SK0S is performed using proton-proton collision data corresponding to an integrated luminosity of 5 fb1 collected by the LHCb experiment between 2011 and 2016. The branching fraction is determined to beB(B0sK0SK0S)=[8.3±1.6(stat)±0.9(syst)±0.8(norm)±0.3(fs/fd)]×106, where the first uncertainty is statistical, the second is systematic, and the third and fourth are due to uncertainties on the B0ϕK0S branching fraction and the ratio of hadronization fractions fs/fd [...]
arXiv:2002.08229; LHCb-PAPER-2019-030; CERN-EP-2020-008; LHCB-PAPER-2019-030.- Geneva : CERN, 2020-08-01 - 15 p. - Published in : Phys. Rev. D 102 (2020) 012011 Article from SCOAP3: PDF; Fulltext: PDF; Related data file(s): ZIP;
10.
Observation of a new baryon state in the Λ0bπ+π mass spectrum / LHCb Collaboration
A new baryon state is observed in the Λ0bπ+π mass spectrum with high significance using a data sample of pp collisions, collected with the LHCb detector at centre-of-mass energies s=7,8 and 13 TeV, corresponding to an integrated luminosity of 9 fb1. The mass and natural width of the new state are measured to be m=6072.3±2.9±0.6±0.2MeV,Γ=72±11±2MeV, where the first uncertainty is statistical and the second systematic. [...]
arXiv:2002.05112; CERN-EP-2020-013; LHCb-PAPER-2019-045; LHCB-PAPER-2019-045.- Geneva : CERN, 2020-06-23 - 24 p. - Published in : JHEP 2006 (2020) 136 Article from SCOAP3: PDF; Fulltext: PDF; Related data file(s): ZIP; Supplementary information: ZIP;

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343 Zhang, W
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214 Zhang, W C
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5 Zhang, W L
188 Zhang, W M
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