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CERN Document Server Encontrados 1,127 registros  1 - 10siguientefinal  ir al registro: La búsqueda tardó 0.67 segundos. 
1.
XXXVIII Rencontres de Physique de La Vallée d'Aoste - LaThuile 2025   9 - 15 Mar 2025  - La Thuile, Aosta Valley, It  .-
2025
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2.
First determination of the spin-parity of ${\Xi}_{c}(3055)^{+0}$ baryons / LHCb Collaboration
The ${{\Xi}_{b}^{0(-)}\to{\Xi}_{c}(3055)^{+(0)}(\to D^{+(0)}{\Lambda}){\pi}^{-}}$ decay chains are observed, and the spin-parity of ${\Xi}_{c}(3055)^{+(0)}$ baryons is determined for the first time. [...]
arXiv:2409.05440 ; LHCb-PAPER-2024-018 ; CERN-EP-2024-215 ; LHCB-PAPER-2024-018. - 2024 - 24.
Fulltext - Related data file(s) - Supplementary information - Fulltext
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3.
Measurement of $t\bar{t}$ production in association with additional $b$-jets in the $e\mu$ final state in proton-proton collisions at $\sqrt{s}$=13 TeV with the ATLAS detector / ATLAS Collaboration
This paper presents measurements of top-antitop quark pair ($t\bar{t}$) production in association with additional $b$-jets. [...]
arXiv:2407.13473 ; CERN-EP-2024-191. - 2024 - 75.
Fulltext - Previous draft version - Fulltext
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4.
Searches for new physics with leptons using the ATLAS detector / Koch, Simon Florian (University of Oxford (GB)) /ATLAS Collaboration
Many different theories beyond the Standard Model (SM) predict that new physics will manifest itself by decaying into final states involving leptons. Leptoquarks are predicted by many new physics theories to describe the similarities between the lepton and quark sectors of the SM. [...]
ATL-PHYS-SLIDE-2024-183.- Geneva : CERN, 2024 - 21 p. Fulltext: PDF; External link: Original Communication (restricted to ATLAS)
In : SUSY24: The 31st International Conference on Supersymmetry and Unification of Fundamental Interactions , Madrid, Es, 10 - 14 Jun 2024
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5.
Search for $B_{(s)}^{*0}\to\mu^+\mu^-$ in $B_c^+\to\pi^+\mu^+\mu^-$ decays /LHCb Collaboration
A search for the very rare $B^{*0}\to\mu^+\mu^-$ and $B_{s}^{*0}\to\mu^+\mu^-$ decays is conducted by analysing the $B_c^+\to\pi^+\mu^+\mu^-$ process. The analysis uses proton-proton collision data collected with the LHCb detector between 2011 and 2018, corresponding to an integrated luminosity of 9\,fb$^{-1}$ [...]
LHCb-CONF-2024-003; CERN-LHCb-CONF-2024-003.- Geneva : CERN, 2024 - 15. Fulltext: LHCb-CONF-2024-003.figures - ZIP; LHCb-CONF-2024-003 - PDF;
In : 12th Edition of the Large Hadron Collider Physics Conference, Boston, Us, 3 - 7 Jun 2024
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6.
Observation of the $\Sigma^+ \to p \mu^+ \mu^-$ rare decay at LHCb /LHCb Collaboration
The first observation of the $\Sigma^+ \to p \mu^+ \mu^-$ decay is reported with high significance using proton-proton collision data, corresponding to an integrated luminosity of $5.4\,fb^{-1}$, collected with the LHCb detector at a centre-of-mass energy of 13 TeV. A yield of $279 \pm 19 $ $\Sigma^+ \to p \mu^+ \mu^-$ decays is observed. [...]
LHCb-CONF-2024-002; CERN-LHCb-CONF-2024-002.- Geneva : CERN, 2024 - 16. Fulltext: LHCb-CONF-2024-002 - PDF; LHCb-CONF-2024-002-figures - ZIP;
In : The XV International Conference on Beauty, Charm, Hyperons in Hadronic Interactions (BEACH 2024) , Charleston, Sc, Us, 3 - 7 Jun 2024
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7.
First search for $K^+ \to \pi^0 \pi \mu e$ decays / NA62 Collaboration
The first search for the lepton number violating decay $K^+ \to \pi^0 \pi^- \mu^+ e^+$ and lepton flavour violating decays $K^+ \to \pi^0 \pi^+ \mu^- e^+$, $K^+ \to \pi^0 \pi^+ \mu^+ e^-$ has been performed using a dataset collected by the NA62 experiment at CERN in 2016–2018. Upper limits of $2.9\times 10^{-10}$, $3.1 \times 10^{-10}$ and $5.0 \times 10^{-10}$, respectively, are obtained at 90% CL for the branching ratios of the three decays on the assumption of uniform phase-space distributions..
arXiv:2409.12981; CERN-EP-2024-224.- Geneva : CERN, 2024-11-12 - 9 p. - Published in : Phys. Lett. B 859 (2024) 139122 Draft (restricted): PDF; Fulltext: CERN-EP-2024-224 - PDF; 2409.12981 - PDF; Publication - PDF;
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8.
The International Conference on New Frontiers in Physics 2024 - ICNFP 2024   26 Aug - 4 Sep 2024  - Kolymbari, Gr  .-
2024
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9.
53rd International Symposium on Multiparticle Dynamics (ISMD) 2024 - ISMD2024   23 - 27 Sep 2024  - Malargue, Mendoza, Ar  .-
2024
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10.
Observation of the rare decay $J\mskip -3mu/\mskip -2mu\psi \to \mu^+\mu^-\mu^+\mu^-$ /LHCb Collaboration
The rare electromagnetic decay $J\mskip -3mu/\mskip -2mu\psi \to \mu^+\mu^-\mu^+\mu^-$ is observed with significance greatly exceeding the discovery threshold, using the proton-proton collision data collected by the LHCb experiment in 2016-2018 at a center-of-mass energy of 13 $\textrm{TeV}$, corresponding to an integrated luminosity of 5.4 $\text{fb}^{-1}$. The rate of this decay is measured relative to that of $J\mskip -3mu/\mskip -2mu\psi \to \mu^+\mu^-$ mode. [...]
LHCb-CONF-2024-001; CERN-LHCb-CONF-2024-001.- Geneva : CERN, 2024 - 17. Fulltext: LHCb-CONF-2024-001 - PDF; LHCb-CONF-2024-001_Figures - ZIP;
In : 58th Rencontres de Moriond on QCD and High Energy Interactions, La Thuile, Italy, 31 Mar - 7 Apr 2024
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