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1.
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;
2.
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;
3.
Precise measurement of the fs/fd ratio of fragmentation fractions and of B0s decay branching fractions / LHCb Collaboration
The ratio of the B0s and B0 fragmentation fractions, fs/fd, in proton-proton collisions at the LHC, is obtained as a function of B-meson transverse momentum and collision centre-of-mass energy from the combined analysis of different B-decay channels measured by the LHCb experiment. The results are described by a linear function of the meson transverse momentum, or with a function inspired by Tsallis statistics. [...]
arXiv:2103.06810; LHCb-PAPER-2020-046; CERN-EP-2021-027; LHCB-PAPER-2020-046.- 2021-08-01 - 33 p. - Published in : Phys. Rev. D 104 (2021) 032005 Fulltext: PDF; Related data file(s): ZIP;
4.
Spectroscopy in Beauty Decays at the LHCb Experiment / LHCb Collaboration
The beauty hadron decays is unique laboratory to study charmonium and charmonium-like states, such as the χc1(3872) meson, other exotic states and the tensor D-wave Ψ2(3823) states. However the nature of many exotic charmonium-like candidates are still unknown. [...]
arXiv:2103.04453; LHCb-PROC-2021-006; CERN-LHCb-PROC-2021-006; CERN-LHCb-PROC-2021-006.- Geneva : CERN, 2021 - 7 p. - Published in : Acta Phys. Pol. B 52 (2021) 1047 Fulltext: document - PDF; 2103.04453 - PDF; LHCb-PROC-2021-006 - PDF;
In : XXVII Cracow Epiphany Conference on Future of particle physics (Epiphany2021), Online, Poland, 7 - 10 Jan 2021, pp.1047
5.
Observation of new resonances decaying to J/ψK+and Jψϕ / LHCb Collaboration
The first observation of exotic states with a new quark content ccus decaying to the J/ψK+ final state is reported with high significance from an amplitude analysis of the B+J/ψϕK+ decay. The analysis is carried out using proton-proton collision data corresponding to a total integrated luminosity of 9fb1 collected by the LHCb experiment at centre-of-mass energies of 7, 8 and TeV . [...]
arXiv:2103.01803; LHCb-PAPER-2020-044; CERN-EP-2021-025; LHCB-PAPER-2020-044.- Geneva : CERN, 2021-08-17 - 18 p. - Published in : Phys. Rev. Lett. 126 (2021) 122002 Fulltext: 2103.01803 - PDF; LHCb-PAPER-2020-044 - PDF; Related data file(s): ZIP; External links: Additional information for the analysis; Previous draft version
6.
Angular Analysis of the B+K+μ+μ Decay / LHCb Collaboration
We present an angular analysis of the B+K+(K0Sπ+)μ+μ decay using 9fb1 of pp collision data collected with the LHCb experiment. For the first time, the full set of CP-averaged angular observables is measured in intervals of the dimuon invariant mass squared. [...]
arXiv:2012.13241; LHCb-PAPER-2020-041; CERN-EP-2020-239.- 2021-04-23 - 11 p. - Published in : Phys. Rev. Lett. 126 (2021) 161802 Article from SCOAP3: PDF; Fulltext: PDF; Fulltext from Publisher: PDF; Related data file(s): ZIP; Supplementary information: ZIP;
7.
Observation of the B0sD±D decay / LHCb Collaboration
A search for the B0sD±D decay is performed 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. The decay is observed with a high significance and its branching fraction relative to the B0D±D decay is measured to be B(B0sD±D)B(B0D±D)=0.137±0.017±0.002±0.006, where the first uncertainty is statistical, the second systematic and the third is due to the uncertainty on the ratio of the B0s and B0 hadronisation fractions..
arXiv:2012.11341; LHCb-PAPER-2020-037; CERN-EP-2020-230.- 2021-03-09 - 19 p. - Published in : JHEP 2103 (2021) 099 Article from SCOAP3: PDF; Fulltext: PDF; Related data file(s): ZIP; Supplementary information: ZIP;
8.
Measurement of CP violation in the decay B+K+π0 / LHCb Collaboration
A measurement of direct CP violation in the decay B+K+π0 is reported using a data sample corresponding to an integrated luminosity of 5.4 fb1, collected with the LHCb experiment at a center-of-mass energy of s=13 TeV. The CP asymmetry is measured to be 0.025±0.015±0.006±0.003, where the uncertainties are statistical, systematic, and due to an external input, respectively. [...]
arXiv:2012.12789; LHCb-PAPER-2020-040; CERN-EP-2020-242.- 2021-03-02 - 11 p. - Published in : Phys. Rev. Lett. 126 (2021) 091802 Article from SCOAP3: PDF; Fulltext: PDF; Related data file(s): ZIP; supplementary information: ZIP;
9.
Evidence of a J/ψΛ structure and observation of excited Ξ states in the ΞbJ/ψΛK decay / LHCb Collaboration
First evidence of a structure in the J/ψΛ invariant mass distribution is obtained from an amplitude analysis of ΞbJ/ψΛK decays. The observed structure is consistent with being due to a charmonium pentaquark with strangeness. [...]
arXiv:2012.10380; LHCb-PAPER-2020-039; CERN-EP-2020-233.- 2021-07-15 - 21 p. - Published in : Sci. Bull. 66 (2021) 1278-1287 Fulltext: PDF; Fulltext from publisher: PDF; Related data file(s): ZIP; Supplementary information: ZIP;
10.
Measurement of CP observables in B±D()K± and B±D()π± decays using two-body D final states / LHCb Collaboration
Measurements of CP observables in B±D()K± and B±D()π± decays are presented, where D() indicates a neutral D or D meson that is an admixture of meson and anti-meson states. Decays of the D meson to the Dπ0 and Dγ final states are partially reconstructed without inclusion of the neutral pion or photon. [...]
arXiv:2012.09903; LHCb-PAPER-2020-036; CERN-EP-2020-225; LHCB-PAPER-2020-036.- 2021-04-09 - 36 p. - Published in : JHEP 2104 (2021) 081 Article from SCOAP3: PDF; Fulltext: 2012.09903 - PDF; LHCb-PAPER-2020-036 - PDF; Related data file(s): ZIP; Supplementary information: ZIP;

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