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CERN Document Server Znaleziono 61 rekordów  1 - 10następnykoniec  skocz do rekordu: Szukanie trwało 0.70 sekund. 
1.
Search for $D^0$ meson decays to $\pi^+ \pi^- e^+ e^-$ and $K^+ K^- e^+ e^-$ final states / LHCb Collaboration
A search for $D^0$ meson decays to the $\pi^+\pi^-e^+e^-$ and $K^+K^-e^+e^-$ final states is reported using a sample of proton-proton collisions collected by the LHCb experiment at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 6 fb$^{-1}$ [...]
arXiv:2412.09414 ; LHCb-PAPER-2024-047 ; CERN-EP-2024-307 ; LHCB-PAPER-2024-047.
- 2024 - 21.
Fulltext - Previous draft version - Related data file(s) - Fulltext
2. Study of the performance of the RICH system for the LHCb Upgrade II
Reference: Poster-2024-1203
Created: 2024. -1 p
Creator(s): Anelli, Alessia

The accurate identification of charged hadrons, distinguishing between pions, kaons, and protons, stands as a pivotal aspect in the physics analyses conducted at LHCb. Playing a crucial role in these measurements, the Ring Imaging Cherenkov (RICH) system offers outstanding Particle Identification (PID) capabilities across a wide momentum spectrum, ranging from 2.6 to 100 GeV/$c$. LHCb is planning an Upgrade II in Run 5 and 6 to exploit the full potential of Hi-Lumi LHC and collect ∼ 300 fb$^{−2}$, by operating at instantaneous luminosity 1.0 – 1.5 x 10 $^{34}$ cm$^{−2}$s$^{−1}$. The RICH system will be fully upgraded to cope with such challenging conditions. The objective of the study is to examine different layouts of the RICH system, together with different types of photon detectors and compare the resulting performance to identify the best combination for the future of the experiment.

© CERN Geneva

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3.
Observation of the open-charm tetraquark state $T_{cs 0}^{*}(2870)^0$ in the $B^- \rightarrow D^- D^0 K_\mathrm{S}^0$ decay / LHCb Collaboration
An amplitude analysis of $B^-\rightarrow D^- D^0 K_\mathrm{S}^0$ decays is performed using proton-proton collision data, corresponding to an integrated luminosity of 9 fb$^{-1}$, collected with the LHCb detector at center-of-mass energies of 7, 8, and 13$\mathrm{\,Te\kern -0.1em V}$. [...]
arXiv:2411.19781 ; LHCb-PAPER-2024-040 ; CERN-EP-2024-287 ; LHCB-PAPER-2024-040.
- 2024 - 21.
Fulltext - Related data file(s) - Supplementary information - Fulltext
4.
Study of $\it{\Lambda}_{\it{b}}^\rm{0}$ and $\it{\Xi}_{\it{b}}^\rm{0}$ decays to $\it{\Lambda} h^+h^{'-}$ and evidence for $CP$ violation in $\it{\Lambda}_{\it{b}}^\rm{0}\to\it{\Lambda} K^+K^-$ decays / LHCb Collaboration
A study of Λ 0 b and Ξ0 b decays to Λh+h ′− (h (′) = π, K) is performed using pp collision data collected by the LHCb experiment during LHC Runs 1–2, corresponding to an integrated luminosity of 9 fb−1 . [...]
arXiv:2411.15441 ; LHCb-PAPER-2024-043 ; CERN-EP-2024-281.
- 26.
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5.
Measurement of $\phi(1020)$ meson production in fixed-target $\textit{p}$Ne collisions at~$\sqrt{s_{NN}}$~=~68.5 GeV. / LHCb Collaboration
The first measurement of $\phi(1020)$ meson production in fixed-target $p$Ne collisions at $\sqrt{s_{NN}}=68.5$ GeV is presented. [...]
arXiv:2411.09343 ; LHCb-PAPER-2024-036 ; CERN-EP-2024-274 ; LHCB-PAPER-2024-036.
- 2024 - 20.
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6.
First evidence for direct $CP$ violation in beauty to charmonium decays / LHCb Collaboration
The $CP$ asymmetry and branching fraction of the CKM-suppressed decay $B^+ \to J\psi \pi^+$ are precisely measured relative to the favoured decay $B^+ \to J\psi K^+$, using a sample of proton-proton collision data corresponding to an integrated luminosity of $5.4 \ \text{fb}^{-1}$ recorded at center-of-mass energy of $13\ \text{TeV}$ during 2016-2018. [...]
arXiv:2411.12178 ; LHCb-PAPER-2024-031 CERN-EP-2024-286 ; LHCb-PAPER-2024-031 ; CERN-EP-2024-286 ; LHCB-PAPER-2024-031.
- 2024 - 20.
Fulltext - Related data file(s) - Fulltext - Supplementary information
7.
Constraints on the photon polarisation in $b \to s \gamma$ transitions using $B_s^0\to \phi e^+ e^-$ decays / LHCb Collaboration
An angular analysis of the $B_s^0 \rightarrow \phi e^+e^-$ decay is performed using the proton-proton collision dataset collected between 2011 and 2018 by the LHCb experiment, corresponding to an integrated luminosity of $9\,{\rm fb}^{-1}$ at centre-of-mass energies of 7, 8 and $13\,{\rm TeV}$. [...]
arXiv:2411.10219 ; LHCb-PAPER-2024-030 ; CERN-EP-2024-276 ; LHCB-PAPER-2024-030.
- 2024 - 21.
Fulltext - Related data file(s) - Supplementary information - Fulltext
8.
Measurement of the $\psi(2S)$ to $J/\psi$ cross-section ratio as a function of centrality in PbPb collisions at $\sqrt{s_{\text{NN}}}$ = 5.02 TeV / LHCb Collaboration
The dissociation of quarkonium states with different binding energies produced in heavy-ion collisions is a powerful probe for investigating the formation and properties of the quark-gluon plasma. [...]
arXiv:2411.05669 ; CERN-EP-2024-272 ; LHCb-PAPER-2024-041.
- 20.
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9.
Study of $D_{s1}^+(2460) \to D_s^+ \pi^+ \pi^-$ in $B \to \overline D^{(*)} D_s^+ \pi^+ \pi^-$ decays / LHCb Collaboration
An amplitude analysis of the $D_{s1}(2460)^+\to D_{s}^{+}\pi^{+}\pi^{-}$ transition is performed simultaneously in $B^{0}\to D^{-}D_{s}^{+}\pi^{+}\pi^{-}$, $B^{+}\to \overline D^{0} D_{s}^{+}\pi^{+}\pi^{-}$}, and $B^{0}\to D^{*-}D_{s}^{+}\pi^{+}\pi^{-}$ decays. [...]
arXiv:2411.03399 ; LHCb-PAPER-2024-033 ; CERN-EP-2024-264 ; LHCB-PAPER-2024-033.
- 2024 - 35.
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10.
Measurement of the CKM angle $\gamma$ in $B^\pm\to DK(892)^{*\pm}$ decays / LHCb Collaboration
Measurements of $CP$ observables and the CKM angle $\gamma$ are performed in $B^{\pm} \to D K^*(892)^{\pm}$ decays, where $D$ represents a superposition of $D^0$ and $\overline{D}{}^0$ states, using the LHCb dataset collected during Run 1 (2011-2012) and Run 2 (2015-2018). [...]
arXiv:2410.21115 ; LHCb-PAPER-2024-023 ; CERN-EP-2024-260.
- 2024 - 38.
Fulltext - Related data file(s) - Fulltext

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