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Velo Upgrade Module Nomenclature
/ Coco, Victor (European Organization for Nuclear Research (CERN), Geneva, Switzerland) ; Akiba, Kazu (Nikhef National Institute for Subatomic Physics, Amsterdam, Netherlands) ; Back, John (Department of Physics, University of Warwick, Coventry, United Kingdom) ; Bertella, Claudia (European Organization for Nuclear Research (CERN), Geneva, Switzerland) ; Bitadze, Alexander (School of Physics and Astronomy, University of Manchester, Manchester, United Kingdom) ; Boente García, Oscar (Instituto Galego de Física de Altás (IGFAE), Universidade de Santiago de Compostela,Santiago de Compostela, Spain) ; Bogdanova, Galina (Institute of Nuclear Physics, Moscow State University (SINP MSU), Moscow, Russia) ; Borghi, Silvia (School of Physics and Astronomy, University of Manchester, Manchester, United Kingdom) ; Bowcock, Themis (Oliver Lodge Laboratory, University of Liverpool, Liverpool, United Kingdom) ; Bridges, Kieran (Oliver Lodge Laboratory, University of Liverpool, Liverpool, United Kingdom) et al.
The nomenclature and geometry of the various constituents of velo upgrade hybrid sensors are defined, as well as their position within the modules. The modules nomenclature and their position along the z-axis are defined..
LHCb-PUB-2019-008; CERN-LHCb-PUB-2019-008.-
Geneva : CERN, 2019 - 14.
Fulltext: PDF;
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2.
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The LHCb VELO Upgrade module construction
/ Akiba, K. (NIKHEF, Amsterdam) ; Alexander, M. (Glasgow U.) ; Bertella, C. (Manchester U.) ; Biolchini, A. (NIKHEF, Amsterdam) ; Bitadze, A. (Manchester U.) ; Bogdanova, G. (Higher Sch. of Economics, Moscow) ; Borghi, S. (Manchester U.) ; Bowcock, T.J.V. (Liverpool U.) ; Bridges, K. (Liverpool U.) ; Brock, M. (Oxford U.) et al.
The LHCb detector has undergone a major upgrade for LHC Run 3. This Upgrade I detector facilitates operation at higher luminosity and utilises full-detector information at the LHC collision rate, critically including the use of vertex information. [...]
arXiv:2404.13615; LHCb-DP-2024-001; LHCb-PAPER-2024-001.-
2024-06-17 - 66 p.
- Published in : JINST 19 (2024) P06023
Fulltext: 2404.13615 - PDF; Publication - PDF;
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3.
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Mapping the material in the LHCb vertex locator using secondary hadronic interactions
/ Alexander, M. (Glasgow U.) ; Barter, W. (Manchester U.) ; Bay, A. (Ecole Polytechnique, Lausanne) ; Bel, L.J. (NIKHEF, Amsterdam) ; van Beuzekom, M. (NIKHEF, Amsterdam) ; Bogdanova, G. (SINP, Moscow) ; Borghi, S. (Manchester U.) ; Bowcock, T.J.V. (Liverpool U.) ; Buchanan, E. (Bristol U.) ; Buytaert, J. (CERN) et al.
Precise knowledge of the location of the material in the LHCb vertex locator (VELO) is essential to reducing background in searches for long-lived exotic particles, and in identifying jets that originate from beauty and charm quarks. Secondary interactions of hadrons produced in beam-gas collisions are used to map the location of material in the VELO. [...]
arXiv:1803.07466; CERN-LHCb-DP-2018-002; CERN-LHCB-DP-2018-002.-
2018-06-13 - 11 p.
- Published in : JINST 13 (2018) P06008
Fulltext: PDF; Fulltext from Publisher: PDF; External link: Figures, tables and other information
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4.
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Search for rare decays of $D^0$ mesons into two muons
/ LHCb Collaboration
A search for the very rare $D^0 \to \mu^+\mu^-$ decay is performed using data collected by the LHCb experiment in proton-proton collisions at $\sqrt{s} = 7$, 8 and $13~\rm{TeV}$, corresponding to an integrated luminosity of $9~\rm{fb^{-1}}$. The search is optimised for $D^0$ mesons from $D^{\ast+}\to D^0\pi^+$ decays but is also sensitive to $D^0$ mesons from other sources. [...]
arXiv:2212.11203; LHCb-PAPER-2022-029; CERN-EP-2022-273.-
2023-07-26 - 13 p.
- Published in : Phys. Rev. Lett. 131 (2023) 041804
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5.
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Amplitude analysis of $B^0 \rightarrow \overline{D}^0 D_s^+ \pi^-$ and $B^+ \rightarrow D^- D_s^+ \pi^+$ decays
/ LHCb Collaboration
Resonant contributions in $B^0 \rightarrow \overline{D}{}^0 D^+_s\pi^-$ and $B^+\rightarrow D^- D^+_s\pi^+$ decays are determined with an amplitude analysis, which is performed both separately and simultaneously, where in the latter case isospin symmetry between the decays is assumed. The analysis is based on data collected by the LHCb detector in proton-proton collisions at center-of-mass energies of 7, 8 and 13 TeV. [...]
arXiv:2212.02717; LHCb-PAPER-2022-027; CERN-EP-2022-246.-
Geneva : CERN, 2023-07-01 - 30 p.
- Published in : Phys. Rev. D 108 (2023) 012017
Fulltext: 2212.02717 - PDF; LHCb-PAPER-2022-027 - PDF; Publication - PDF; Related data file(s): ZIP;
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6.
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First observation of a doubly charged tetraquark and its neutral partner
/ LHCb Collaboration
A combined amplitude analysis is performed for the decays $B^0 \rightarrow \overline{D}{}^0 D^+_s\pi^-$ and $B^+\rightarrow D^- D^+_s\pi^+$, which are related by isospin symmetry. The analysis is based on data collected by the LHCb detector in proton-proton collisions at center-of-mass energies of 7, 8 and 13 TeV. [...]
arXiv:2212.02716; LHCb-PAPER-2022-026; CERN-EP-2022-239.-
Geneva : CERN, 2023-07-27 - 12 p.
- Published in : Phys. Rev. Lett. 131 (2023) 041902
Fulltext: Publication - PDF; LHCb-PAPER-2022-026 - PDF; 2212.02716 - PDF; Related data file(s): ZIP; Supplementary information: ZIP;
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8.
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Search for $K^0_{\mathrm{S(L)}}\to\mu^+\mu^-\mu^+\mu^-$ decays at LHCb
/ LHCb Collaboration
A search for $K_{\textrm{S(L)}}^0\rightarrow\mu^{+}\mu^{-}\mu^{+}\mu^{-}$ decays is performed using proton-proton collision data collected by the LHCb experiment at a centre-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 5.1 $\text{fb}^{-1}$. No evidence for signal is found. [...]
arXiv:2212.04977; CERN-EP-2022-255; LHCb-PAPER-2022-035; LHCB-PAPER-2022-035.-
Geneva : CERN, 2023-08-01 - 12 p.
- Published in : Phys. Rev. D 108 (2023) L031102
Fulltext: 2212.04977 - PDF; Publication - PDF; Related data file(s): ZIP; Supplementary information: ZIP;
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9.
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Test of lepton universality in $b \rightarrow s \ell^+ \ell^-$ decays
/ LHCb Collaboration
The first simultaneous test of muon-electron universality using $B^{+}\rightarrow K^+\ell^+ \ell^−$ and $B^{0} \rightarrow K^{*0} \ell^{+} \ell^{−}$ decays is performed, in two ranges of the dilepton invariant-mass squared, $q^{2}$. The analysis uses beauty mesons produced in proton-proton collisions collected with the LHCb detector between 2011 and 2018, corresponding to an integrated luminosity of 9 $\mathrm{fb}^{-1}$. [...]
arXiv:2212.09152; LHCb-PAPER-2022-046; CERN-EP-2022-277.-
Geneva : CERN, 2023-08-02 - 13 p.
- Published in : Phys. Rev. Lett. 131 (2023) 051803
Fulltext: 2212.09152 - PDF; Publication - PDF; LHCb-PAPER-2022-046 - PDF; Related data file(s): ZIP;
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10.
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Measurement of lepton universality parameters in $B^+\to K^+\ell^+\ell^-$ and $B^0\to K^{*0}\ell^+\ell^-$ decays
/ LHCb Collaboration
A simultaneous analysis of the $B^+\to K^+\ell^+\ell^-$ and $B^0\to K^{*0}\ell^+\ell^-$ decays is performed to test muon-electron universality in two ranges of the square of the dilepton invariant mass, $q^2$. The measurement uses a sample of beauty meson decays produced in proton-proton collisions collected with the LHCb detector between 2011 and 2018, corresponding to an integrated luminosity of $9$ $\text{fb}^{-1}$. [...]
arXiv:2212.09153; LHCb-PAPER-2022-045; CERN-EP-2022-278.-
Geneva : CERN, 2023-08-01 - 46 p.
- Published in : Phys. Rev. D 108 (2023) 032002
Fulltext: 2212.09153 - PDF; LHCb-PAPER-2022-045 - PDF; Publication - PDF; Related data file(s): ZIP;
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