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LHCb Conference Proceedings

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Heavy-ion physics and strong interactions at LHCb / Dembinski, Hans Peter (Technische Universitaet Dortmund (DE))
The LHCb experiment is a single-arm spectrometer designed for the study of heavy flavour physics at the LHC, but also an excellent general purpose experiment for the study of quantum chromodynamics in the forward region. The forward acceptance make the LHCb data particular interesting for many applications in astroparticle physics, which are dominated by forward hadron production. [...]
LHCb-PROC-2021-009; CERN-LHCb-PROC-2021-009.- Geneva : CERN, 2021 - 4. Fulltext: PDF;
In : 55th Rencontres de Moriond on QCD and High Energy Interactions, Online, Online, 27 Mar - 3 Apr 2021

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Precision Measurement of the $B_s-\kern0.18em\overline{\kern -0.18em B}{}^0_s$ Oscillation Frequency $\Delta m_s$ with $B_s\to D_s^-\pi^+$ Decays at LHCb / Heinicke, Kevin (Technische Universitaet Dortmund (DE)) /LHCb Collaboration
Decays of $B^0_s \to D_s^- \pi^+$ allow to determine the oscillation frequency $\Delta m_s$ between the $B^0_s$ particle and $\kern0.18em\overline{\kern -0.18em B}{}^0_s$ antiparticle states with high precision. It is a crucial input to constrain the CKM matrix and a manifestation of the quantum nature of physics. [...]
arXiv:2105.08134; LHCb-PROC-2021-008; CERN-LHCb-PROC-2021-008.- Geneva : CERN, 2021 - 4 p. Fulltext: LHCb-PROC-2021-008 - PDF; 2105.08134 - PDF;
In : 55th Rencontres de Moriond on Electroweak Interactions and Unified Theories, Online, Online, 21 - 27 Mar 2021

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Rare decays and searches for exotic signatures at LHCb: purely leptonic decays / Mombacher, Titus (Universidade de Santiago de Compostela (ES))
A review of the experimental status of purely leptonic ${B^0_{[s]}\to\ell^+\ell^-}$ decays is given and the new analysis of ${B^0_{[s]}\to\mu^+\mu^-}$ observables with the LHCb experiment is presented. The new results are the most precise single experiment measurements of the quantities to date and are consistent with the Standard Model. [...]
LHCb-PROC-2021-007; CERN-LHCb-PROC-2021-007.- Geneva : CERN, 2021 - 4. Fulltext: PDF;
In : 55th Rencontres de Moriond on QCD and High Energy Interactions, Online, Online, 27 Mar - 3 Apr 2021

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Spectroscopy in beauty decays at the LHCb experiment / Ovsiannikova, Tatiana (NRC "Kurchatov Institute" (ITEP) (RU)) ; Abellán Beteta, Carlos (Zurich U.) ; Ackernley, Thomas (Liverpool U.) ; Adeva, Bernardo (U. Santiago de Compostela (main)) ; Adinolfi, Marco (Bristol U.) ; Afsharnia, Hossein (Clermont-Ferrand U.) ; Aidala, Christine Angela (U. Michigan, Ann Arbor) ; Aiola, Salvatore (INFN, Milan) ; Ajaltouni, Ziad (Clermont-Ferrand U.) ; Akar, Simon (Cincinnati U.) et al.
The beauty hadron decays is unique laboratory to study charmonium and charmonium-like states, such as the $\chi_{c1}(3872)$ meson, other exotic states and the tensor $D$-wave $\Psi_2(3823)$ states. [...]
arXiv:2103.04453 ; LHCb-PROC-2021-006 ; CERN-LHCb-PROC-2021-006 ; CERN-LHCb-PROC-2021-006.
- 2021. - 7 p.
Full text - Fulltext

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Charm mixing and $CP$ violation at LHCb / Correa dos Reis, Alberto (CBPF Rio de Janeiro)
Recent LHCb results on charm mixing and $CP$ Violation are presented. The results include the first observation of $CP$ Violation in charm decays and the most precise measurement of the mass difference between the mass eigenstates of neutral mesons. [...]
LHCb-PROC-2021-005; CERN-LHCb-PROC-2021-005.- Geneva : CERN, 2021 - mult.p. Fulltext: PDF;
In : 19th International Conference on B-Physics at Frontier Machines, Online, Japan, 21 - 24 Sep 2020

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Studies of b-hadrons at LHCb / Matiunin, Slava (NRC "Kurchatov Institute" (ITEP) (RU)) /LHCb Collaboration
A large data set collected at the LHCb experiment in proton-proton collisions during Runs 1 and 2 of the Large Hadron Collider has opened a unique possibility to study heavy beauty hadron states and to broaden knowledge of their spectroscopy and production. Recent results on searches for new excited $\mathrm{b}$-hadron states, and studies of $\mathrm{b}$-hadron production, are reviewed. [...]
arXiv:2102.03175; LHCb-PROC-2021-004; CERN-LHCb-PROC-2021-004; CERN-LHCb-PROC-2021-004.- Geneva : SISSA, 2020-12-02 - 6 p. - Published in : PoS ICHEP2020 (2021) 485 Fulltext: 2102.03175 - PDF; LHCb-PROC-2021-004 - PDF; PoS(ICHEP2020)485 - PDF;
In : 40th International Conference on High Energy Physics (ICHEP), Prague, Czech Republic, 28 Jul - 6 Aug 2020, pp.485

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Beauty meson decays to charmonium-like states at LHCb / Ovsiannikova, Tatiana (Kurchatov Inst., Moscow) /LHCb Collaboration
The decays $B^{0}_{s} \to J\psi\pi^{+}\pi^{-}K^{+}K^{-}$ are studied using a data set corresponding to an integrated luminosity of 9 fb$^{-1}$, collected with the LHCb detector in proton-proton collisions at centre of mass energies of 7, 8 and 13 $TeV$. The decays $B^{0}_{s} \to J/\psi K^{*0}\bar{K^{*0}}$ and $B^{0}_{s} \to \chi_{c1}(3872) K^{+}K^{-}$, where the $K^{+}K^{-}$ pair does not originate from a $\phi$ meson, are observed for the first time. [...]
arXiv:2101.03332; LHCb-PROC-2021-003; CERN-LHCb-PROC-2021-003; CERN-LHCb-PROC-2021-003.- Geneva : CERN, 2021 - 11 p. Fulltext: LHCb-PROC-2021-003 - PDF; 2101.03332 - PDF;
In : 23rd International Conference in Quantum Chromodynamics, Montpellier, France, 27 - 30 Oct 2020

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LHCb results on exotic spectroscopy / Kucharczyk, Marcin (Polish Academy of Sciences (PL))
The latest years have observed a resurrection of interest in searches for exotic states motivated by precision spectroscopy studies of beauty and charm hadrons providing the observation of many new exotic states. The recent results on spectroscopy of exotic hadrons obtained by the LHCb Col- laboration are reviewed [...]
LHCb-PROC-2021-002; CERN-LHCb-PROC-2021-002.- Geneva : CERN, 2021 - 6. Fulltext: PDF;
In : Excited QCD 2020, Krynica Zdrój, Poland, 2 - 8 Feb 2020

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Search for long-lived particles in LHCb / Kucharczyk, Marcin (Polish Academy of Sciences (PL))
The present document focuses on the recent searches for the existence of heavy particles beyond the Standard Model at LHCb, exploiting its unique forward acceptance, high-precision tracking and excellent particle identification. Searches for long-lived particles decaying into jet pairs or semileptonically, together with the lepton-flavour-violating decays of Higgs-like boson, are dis- cussed..
LHCb-PROC-2021-001; CERN-LHCb-PROC-2021-001.- Geneva : CERN, 2020 - 4. Fulltext: PDF;
In : 8th Conference of Large Hadron Collider Physics (LHCP), Online, 25 - 30 May 2020

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The Design and Construction of LHCb VELO Upgrades Modules / Svihra, Peter (University of Manchester (GB))
The LHCb experiment is a detector at the LHC designed to capture decays of b- and c-hadrons for the study of CP violation and rare decays. At the end of Run-II, many of the LHCb measurements remain statistically dominated. [...]
LHCb-PROC-2020-005; CERN-LHCb-PROC-2020-005.- Geneva : CERN, 2020 - 6. Fulltext: PDF;
In : 2019 IEEE Nuclear Science Symposium (NSS) and Medical Imaging Conference (MIC), Manchester, United Kingdom, 26 Oct - 2 Nov 2019

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