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LHCb Conference Proceedings

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2023-02-20
16:08
An LHCb Vertex Locator (VELO) for 2030s / Gkougkousis, Vagelis (CERN)
LHCb has recently submitted a physics case for an Upgrade II detector to begin operation in 2031. The upcoming upgrade stage is designed to run at instantaneous luminosities of up to $1.5 \times 10^{34}$ $cm^{-2}s^{-1}$, and accumulate a sample of more than $300$ $f$^{-1}$. [...]
LHCb-PROC-2023-002; CERN-LHCb-PROC-2023-002.- Geneva : CERN, 2022 - mult.p. Fulltext: PDF;
In : The International Workshop on Vertex Detectors (VERTEX 2022), Tateyama, Japan, 24 - 28 Oct 2022

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2023-01-18
13:46
Real-time alignment procedure at the LHCb experiment for Run 3 / Reiss, Florian (University of Manchester (GB))
The LHCb detector at the LHC is a general purpose detector in the forward region with a focus on studying decays of c- and b-hadrons. For Run 3 of the LHC, LHCb will take data at an instantaneous luminosity of 2x10^33 cm^-2s^-1. [...]
LHCb-PROC-2023-001; CERN-LHCb-PROC-2023-001.- Geneva : CERN, 2023 - 8. Fulltext: PDF;
In : Connecting The Dots (CTD 2022), Princeton, United States Of America, 31 May - 2 Jun 2022

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2022-11-16
12:16
Expanding Physics Reach with Unused Tracks in LHCb / Sanderswood, Izaac (Univ. of Valencia and CSIC (ES))
The physics reach of the LHCb detector can be extended by reconstructing particles with a long lifetime that decay in the magnet region, using only tracks from downstream of the dipole magnet. This allows for electromagnetic dipole moment measurements, and increases the reach of undiscovered long-lived particle searches. [...]
LHCb-PROC-2022-019; CERN-LHCb-PROC-2022-019.- Geneva : CERN, 2022 - mult.p. Fulltext: PDF;
In : Connecting The Dots (CTD 2022), Princeton, United States Of America, 31 May - 2 Jun 2022

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2022-09-20
14:25
Charmless $b$-hadron decays at LHCb / Nasteva, Irina (Federal University of of Rio de Janeiro (BR)) /LHCb Collaboration
Measurements of $C\!P$ asymmetries in charmless two-body $B$-meson decays can provide stringent tests of the Standard Model. In multibody decays, short and long-distance dynamics along with a sizeable effective weak phase in the interference between tree and penguin amplitudes can lead to a rich structure of $C\!P$ violation as a function of the phase space. [...]
LHCb-PROC-2022-018; CERN-LHCb-PROC-2022-018.- Geneva : CERN, 2022 - 5 p. - Published in : Rev. Mex. Fis. Suppl. 3 (2022) 0308062 Fulltext: PDF;
In : XIX International Conference on Hadron Spectroscopy and Structure (Hadron 2021), Mexico City, Mexico, 26 Jul - 1 Aug 2021, pp.0308062

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2022-09-12
15:22
LHCb results in charm baryons / Xu, Jingyi (University of Chinese Academy of Sciences (CN)) /LHCb Collaboration
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 discovering many previously unobserved states. [...]
LHCb-PROC-2022-017; CERN-LHCb-PROC-2022-017.- Geneva : CERN, 2022 - 5. - Published in : Nucl. Part. Phys. Proc. 318-323 (2022) 56-60 Fulltext: PDF;
In : 24th International Conference in QCD, Montpellier, France, 5 - 9 Jul 2021, pp.56-60

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2022-09-12
15:14
Recent LHCb results on heavy hadron spectroscopy / Fang, Bo (Université Paris-Saclay (FR)) /LHCb Collaboration
Recent results on heavy hadron spectroscopy from the LHCb experiment are briefly introduced in these proceedings. These results contain the observation of a new excited $D^+_s$ meson in $B^0 → D^− D^+K^+ \pi^−$ decays, evidence of a new $J/\psi \Lambda$ structure in $\Xi^-_b → J/\psi \Lambda K^−$ decays, and the observation of four new resonances decaying to $J/\psi K^+$ or $J/\psi \phi$ in $B^+ → J/\psi \phi K^+$ decays..
LHCb-PROC-2022-016; CERN-LHCb-PROC-2022-016.- Geneva : CERN, 2022 - 7 p. - Published in : Nucl. Part. Phys. Proc. 318-323 (2022) 66-72 Fulltext: PDF;
In : 24th International Conference in QCD, Montpellier, France, 5 - 9 Jul 2021, pp.66-72

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2022-09-09
14:36
Heavy flavour production in $pp$ collisions at LHCb / Xu, Li (Tsinghua University (CN)) /LHCb Collaboration
These proceedings summarise the recent heavy flavour production measurements in proton-proton ($pp$) collisions at the LHCb experiment. The production cross-sections of $J/\psi$ mesons are measured at a centre-of-mass energy of $\sqrt{s}=5$ TeV. [...]
LHCb-PROC-2022-015; CERN-LHCb-PROC-2022-015.- Geneva : CERN, 2022 - 5. - Published in : Nucl. Part. Phys. Proc. 318-323 (2022) 7-11 Fulltext: PDF;
In : 24th International Conference in QCD, Montpellier, France, 5 - 9 Jul 2021, pp.7-11

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2022-09-08
10:53
Quarkonia production in ultraperipheral PbPb collisions at LHCb / Duan, Weisong (South China Normal University (CN))
Two analyses are reported in this contribution. The cross-section of coherent $J/\psi$ and $\psi(2S)$ in ultra-peripheral PbPb collisions is measured as a function of rapidity $y^*$ and $p_{\mathrm{T}}^*$, where the asterisk indicates that the variables are defined in the nucleus-nucleus center-of-mass frame. [...]
LHCb-PROC-2022-014; CERN-LHCb-PROC-2022-014.- Geneva : CERN, 2022 - 4. Fulltext: PDF;
In : The 20th International Conference on Strangeness in Quark Matter, Busan, Kr, 13 - 17 Jun 2022

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2022-09-02
11:50
Standalone track reconstruction and matching algorithms for GPU-based High level trigger at LHCb / Jashal, Brij Kishor (Instituto de Fisica Corpuscular (IFIC), Valencia)
The LHCb Upgrade in Run 3 has changed its trigger scheme for a full software selection in two steps. The first step, HLT1, will be entirely implemented on GPUs and run a fast selection aiming at reducing the visible collision rate from 30 MHz to 1 MHz. [...]
LHCb-PROC-2022-013; CERN-LHCb-PROC-2022-013.- Geneva : CERN, 2022 - 8. Fulltext: PDF;
In : Connecting The Dots (CTD 2022), Princeton, United States Of America, 31 May - 2 Jun 2022

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2022-08-05
13:55
Fast and flexible data structures for the LHCb Run 3 software trigger / Esen, Sevda (University of Zurich (CH)) ; Hennequin, Arthur Marius (Massachusetts Inst. of Technology (US)) ; De Cian, Michel (EPFL - Ecole Polytechnique Federale Lausanne (CH))
Starting this year, the upgraded LHCb detector will collect data with a pure software trigger. In its first stage, reducing the rate from 30MHz to about 1MHz, GPUs are used to reconstruct and trigger on B and D meson topologies and high-pT objects in the event. [...]
LHCb-PROC-2022-012; CERN-LHCb-PROC-2022-012.- Geneva : CERN, 2021 - mult.p. Fulltext: PDF;
In : Connecting The Dots 2022, Princeton, United States Of America, 31 May - 2 Jun 2022

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