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LHCb Conference Proceedings

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2022-05-13
16:40
Search for the lepton-flavour violating decays $B_s^0 \to K^{*0} \mu^\pm e^\mp$ and \boldmath$B_s^0 \to \phi \mu^\pm e^\mp$ / Basels, Jan-Marc (Rheinisch Westfaelische Tech. Hoch. (DE))
A search for the lepton-flavour violating decays $B^0 \to K^{*0} \mu^\pm e^\mp$ and $B_s^0 \to \phi \mu^\pm e^\mp$ is presented, using data collected by the LHCb experiment at the LHC in $pp$ collisions, corresponding to an integrated luminosity of $9\,\mathrm{fb}^{-1}$. No significant excess is observed and upper limits are set, constituting the world's most stringent limits to date. [...]
LHCb-PROC-2022-005; CERN-LHCb-PROC-2022-005.- Geneva : CERN, 2022 - 4. Fulltext: PDF;
In : 56th Rencontres de Moriond on Electroweak Interactions and Unified Theories, La Thuile, It, 12 - 19 Mar 2022

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2022-04-11
13:51
New generation offline software for the LHCb upgrade I / Ferrillo, Martina (University of Zurich (CH))
In preparation for Run 3 of the LHC, the LHCb experiment extensively upgrades its detector to meet the quest for higher luminosity and physics yield. The corresponding increase in the data volume and the use of fast simulation pose a challenge to the data storage resource strategy and computing model. [...]
LHCb-PROC-2022-004; CERN-LHCb-PROC-2022-004.- Geneva : CERN, 2022 - 5. Fulltext: PDF;
In : 30th International Symposium on Lepton Photon Interactions at High Energies, Manchester, Gb, 10 - 14 Jan 2022

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2022-03-04
14:07
New software technologies in the LHCb Simulation / Mazurek, Michal (National Centre for Nuclear Research (PL)) ; Corti, Gloria (CERN) ; Kreps, Michal (University of Warwick (GB)) ; Davis, Adam (University of Manchester (GB)) ; Popov, Dmitry (University of Chinese Academy of Sciences (CN)) ; Siddi, Benedetto Gianluca (Universita e INFN, Ferrara (IT))
Monte Carlo simulations are key to the design and commissioning of new detectors as well as the interpretation of physics measurements. The amount of simulated samples required for the Run 3 physics program of the LHCb experiment will increase significantly from 2022 onward to match the increase in the amount of data collected with respect to Run 1 and 2 operation. [...]
LHCb-PROC-2022-003; CERN-LHCb-PROC-2022-003.- Geneva : CERN, 2022 - 4. Fulltext: PDF;
In : ACAT 2021: 20th International Workshop on Advanced Computing and Analysis Techniques in Physics Research, Daejeon, Kr, 29 Nov - 3 Dec 2021

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2022-02-16
15:05
Commissioning LHCb’s GPU high level trigger / Agapopoulou, Christina (Centre National de la Recherche Scientifique (FR))
From 2022 onward, the upgraded LHCb experiment will use a triggerless readout system collecting data at an event rate of 30 MHz. A software-only High Level Trigger will enable unprecedented flexibility for trigger selections. [...]
LHCb-PROC-2022-002; CERN-LHCb-PROC-2022-002.- Geneva : CERN, 2022 - 6. Fulltext: PDF;
In : ACAT 2021: 20th International Workshop on Advanced Computing and Analysis Techniques in Physics Research, Daejeon, Kr, 29 Nov - 3 Dec 2021

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2022-01-06
13:52
Charm baryons at LHCb / Seman Bobulska, Dana (University of Glasgow (GB))
The LHCb experiment collected the world's largest sample of charmed hadrons during LHC Run 1 and Run 2. With this data set, LHCb is currently providing the world's most precise measurements of properties and production of known charmed baryons, as well as searching for many previously unobserved states. [...]
LHCb-PROC-2022-001; CERN-LHCb-PROC-2022-001.- Geneva : CERN, 2022 - 10. Fulltext: PDF;
In : 10th International Workshop on Charm Physics, Online, Online, 31 May - 4 Jun 2021

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2021-12-17
11:01
Charmonia photo-production in ultra-peripheral and peripheral PbPb collisions with LHCb. / Duan, Weisong (South China Normal University (CN))
The LHCb recorded $\sim$ 210 $\mu b^{-1}$ integrated luminosity of PbPb collisions at $\sqrt{s_{NN}}$ = 5.02 TeV in 2018. With an increase of the luminosity by a factor of 20 compared to the previous 2015 PbPb dataset, precise measurements on photo-produced charmonia in ultra-peripheral collisions are now possible. [...]
LHCb-PROC-2021-012; CERN-LHCb-PROC-2021-012.- Geneva : CERN, 2021
In : Low-x 2021, Biodola, Italy, It, 27 Sep - 1 Oct 2021

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2021-11-15
16:58
New Simulation Software Technologies at the LHCb Experiment at CERN / Mazurek, Michal (National Centre for Nuclear Research (PL)) ; Corti, Gloria (CERN) ; Muller, Dominik
The LHCb experiment at the Large Hadron Collider (LHC) at CERN has successfully performed a large number of physics measurements during Runs 1 and 2 of the LHC. Monte Carlo simulation is key to the interpretation of these and future measurements. [...]
LHCb-PROC-2021-011; CERN-LHCb-PROC-2021-011.- Geneva : CERN, 2021 - 17. Fulltext: PDF;
In : XXII KKIO Software Engineering Conference, Online, Online, 21 - 22 Sep 2021

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2021-11-10
15:01
Precision QCD measurements from LHCb / Kucharczyk, Marcin (The Henryk Niewodniczański Institute of Nuclear Physics (IFJ) • Polish Academy of Sciences (PAN)) /LHCb Collaboration
The LHCb detector, thanks to its unique coverage of the forward region of pseudorapidity from 2 to 5, together with high-precision tracking and excellent particle identification, is a universal tool allowing to study a wide spectrum of QCD processes. The present document focuses on the recent results on the production of charged hadrons within jets recoiling against a Z boson at $\sqrt{_s}$ = 8 TeV as well as the Bose-Einstein correlations of same-sign pions at $\sqrt{_s}$= 7 TeV, both performed using large samples of proton-proton collision data accumulated with the LHCb detector. [...]
CERN-LHCb-PROC-2021-010.- Geneva : CERN, 2021 - 5. - Published in : PoS LHCP 2021 (2021) 273 Fulltext: PDF; Fulltext from publisher: PDF;
In : 9th Annual Large Hadron Collider Physics (LHCP 2021), Online, GB, 7 - 12 Jun 2021, pp.273

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2021-06-16
16:58
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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2021-05-17
18:04
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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