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CERN Document Server 219 záznamov nájdených  1 - 10ďalšíkoniec  skoč na záznam: Hľadanie trvalo 0.92 sekúnd. 
1.
Search for the decay $B^0 \rightarrow \phi\phi$ / LHCb Collaboration
A search for the decay $B^0 \rightarrow ϕϕ$ is made using $pp$ collision data collected with the LHCb detector at centre-of-mass energies of 7, 8 and 13 TeV, corresponding to an integrated luminosity of $9$ fb$^{-1}$. [...]
arXiv:2507.20945 ; LHCb-PAPER-2025-018 ; CERN-EP-2025-150.
- 22.
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2.
Performance and long-term aging studies on Eco-Friendly Resistive Plate Chamber detectors / RPC EcoGas@GIF++ Collaboration
In High Energy Physics Resistive Plate Chamber (RPC) detectors are typically operated in avalanche mode, making use of a high-performance gas mixture whose main component, Tetrafluoroethane (C2H2F4), is classified as a fluorinated high Global Warming Potential greenhouse gas. The RPC EcoGas@GIF++ Collaboration is pursuing an intensive R&D; on new gas mixtures for RPC detectors to explore environmentally friendly alternatives complying with recent European regulations. [...]
2025 - 6 p. - Published in : Nucl. Instrum. Methods Phys. Res., A 1080 (2025) 170624
3.
Improved measurement of $\eta / \eta^{\prime}$ mixing in $B^{0}_{(s)} \rightarrow J/\psi \eta^{(\prime)}$ decays / LHCb Collaboration
Branching fraction ratios between the decays $B^{0}_{(s)} \rightarrow J/\psi \eta^{(\prime)}$ are measured using proton-proton collision data collected by the LHCb experiment at centre-of-mass energies of 7, 8 and 13 TeV, corresponding to an integrated luminosity of 9 fb$^{-1}$. [...]
arXiv:2507.13914 ; LHCb-PAPER-2025-025 ; CERN-EP-2025-148 ; LHCB-PAPER-2025-025.
- 2025-07-18 - 32.
Fulltext - Related data file(s) - Fulltext
4.
Measurement of the $\ B^0 \to \rho(770)^0 \gamma \ $ branching fraction / LHCb Collaboration
The ratio between the branching fractions of the $B^0\to\rho(770)^0\gamma$ and $B^0\to K^{*}(892)^0\gamma$ decays is measured with proton-proton collision data collected by the LHCb experiment at centre-of-mass energies of 7, 8, and 13 TeV, corresponding to an integrated luminosity of 9 fb${}^{-1}$. [...]
arXiv:2507.14401 ; LHCb-PAPER-2025-017 ; CERN-EP-2025-144 ; LHCB-PAPER-2025-017.
- 2025 - 21.
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5.
Search for resonances decaying to photon pairs with masses between 4.9 and 19.4 GeV / LHCb Collaboration
A search is presented for axion-like particles (ALPs) with masses between 4.9 and 19.4 GeV decaying to a pair of photons, using proton-proton collisions collected with the LHCb detector during 2018 at a centre-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 2.1 fb$^{-1}$. [...]
arXiv:2507.14390 ; CERN-EP-2025-133 ; LHCb-PAPER-2025-012 ; LHCB-PAPER-2025-012.
- 2025 - 21.
Full text - Related data file(s) - Full text - Fulltext
6.
Precision measurement of the ${\it{\Xi}}_b^0$ baryon lifetime / LHCb Collaboration
A sample of $pp$ collision data, corresponding to an integrated luminosity of 5.4 fb$^{-1}$ and collected by the LHCb experiment during LHC Run 2, is used to measure the ratio of the lifetime of the ${\it{\Xi}}_b^0$ baryon to that of the ${\it{\Lambda}}_b^0$ baryon, $r_{\tau}\equiv\tau_{{\it{\Xi}}_b^0}/\tau_{{\it{\Lambda}}_b^0}$. [...]
arXiv:2507.12402 ; LHCb-PAPER-2025-023 ; CERN-EP-2025-139.
- 2025 - 25.
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7.
First observation of the $\mathit{\Lambda}_b^{0}\!\rightarrow\mathit{\Lambda}_{c}^{+}D_{s}^{-}K^{+}K^{-}$ decay and search for pentaquarks in the $\mathit{\Lambda}_{c}^{+}D_{s}^{-}$ system / LHCb Collaboration
The $\mathit{\Lambda}_b^{0}\!\rightarrow\mathit{\Lambda}_{c}^{+}D_{s}^{-}K^{+}K^{-}$ decay is observed for the first time using the data sample from proton-proton collisions recorded at a center-of-mass energy of $13\,\text{TeV}$ with the LHCb detector, corresponding to an integrated luminosity of $6\,\text{fb}^{-1}$. [...]
arXiv:2507.10713 ; LHCb-PAPER-2025-022 ; CERN-EP-2025-138 ; LHCB-PAPER-2025-022.
- 2025 - 24.
Fulltext - Related data file(s) - Fulltext
8.
Long-Term Ageing Studies on Eco-Friendly Resistive Plate Chamber Detectors / Abbrescia, Marcello (Bari U. ; INFN, Bari) ; Aielli, Giulio (Rome U., Tor Vergata ; INFN, Rome2) ; Aly, Reham (Helwan U. ; INFN, Bari) ; Arena, Maria Cristina (Pavia U.) ; Ferreira, Mapse Barroso (Rio de Janeiro State U.) ; Benussi, Luigi (Frascati) ; Bianco, Stefano (Frascati) ; Bordon, Fabio (CERN) ; Boscherini, Davide (INFN, Bologna) ; Bruni, Alessia (INFN, Bologna) et al.
In high-energy physics, resistive plate chamber (RPC) detectors operating in avalanche mode make use of a high-performance gas mixture. Its main component, Tetrafluoroethane (C2H2F4), is classified as a fluorinated greenhouse gas. [...]
2025 - 10 p. - Published in : Particles: 8 (2025) , no. 1, pp. 15
- Published in : Particles: 8 (2025) , no. 1, pp. 15 Fulltext: PDF;
In : 13th International Conference on New Frontiers in Physics 2024 (ICNFP 2024), Kolymbari, Greece, 26 Aug - 4 Sep 2024, pp.15
9.
Observation of orbitally excited $B_{c}^{+}$ states / LHCb Collaboration
The observation of a wide peaking structure in the $B_{c}^{+} γ$ mass spectrum is reported using proton-proton collision data collected by the LHCb detector at center-of-mass energies of $7$, $8$ and $13~\text{TeV}$, corresponding to a total integrated luminosity of $9~\text{fb}^{-1}$. [...]
arXiv:2507.02149 ; LHCb-PAPER-2025-014 ; CERN-EP-2025-123.
- 18.
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10.
Study of $B_{c}(1P)^{+}$ states in the $B_{c}^{+} \gamma$ mass spectrum / LHCb Collaboration
The study of a wide peaking structure in the $B_{c}^{+} γ$ mass spectrum is reported using a data sample of proton-proton collisions collected by the LHCb detector at center-of-mass energies of $7$, $8$ and $13~\text{TeV}$, corresponding to an integrated luminosity of $9~\text{fb}^{-1}$. [...]
arXiv:2507.02142 ; LHCb-PAPER-2025-015 ; CERN-EP-2025-122.
- 28.
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