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CERN Document Server 2,050 записей найдено  1 - 10следующийконец  перейти к записи: Поиск длился 9.27 секунд. 
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Observation of New Charmonium or Charmoniumlike States in <math display="inline"><msup><mi>B</mi><mo>+</mo></msup><mo stretchy="false">→</mo><msup><mi>D</mi><mrow><mo>*</mo><mo>±</mo></mrow></msup><msup><mi>D</mi><mo>∓</mo></msup><msup><mi>K</mi><mo>+</mo></msup></math> Decays / LHCb Collaboration
A study of resonant structures in $B^{+}\rightarrow{D^{*+}D^{-}K^{+}}$ and $B^{+}\rightarrow{D^{*-}D^{+}K^{+}}$ decays is performed, using proton-proton collision data at centre-of-mass energies of $\sqrt{s}=7, 8$, and $13$TeV recorded by the LHCb experiment, corresponding to an integrated luminosity of 9 fb${}^{-1}$. A simultaneous amplitude fit is performed to the two channels with contributions from resonances decaying to $D^{*-}D^{+}$ and $D^{*+}D^{-}$ states linked by $C$-parity. [...]
arXiv:2406.03156; LHCb-PAPER-2023-047; CERN-EP-2024-096.- Geneva : CERN, 2024-09-27 - 14 p. - Published in : Phys. Rev. Lett. 133 (2024) 131902 Fulltext: LHCb-PAPER-2023-047_arxiv - PDF; 2406.03156 - PDF; Publication - PDF; Related data file(s): ZIP; Supplementary information: ZIP;
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Measurement of $CP$ violation observables in $D^+\to K^-K^+\pi^+$ decays / LHCb Collaboration
A search for violation of the charge-parity ($CP$) symmetry in the $D^+\rightarrow K^-K^+\pi^+$ decay is presented, with proton-proton collision data corresponding to an integrated luminosity of 5.4 fb$^{-1}$, collected at a center-of-mass energy of 13 TeV with the LHCb detector. A novel model-independent technique is used to compare the $D^+$ and $D^-$ phase-space distributions, with instrumental asymmetries subtracted using the $D^+{s}\rightarrow K^-K^+\pi^+$ decay as a control channel. [...]
arXiv:2409.01414; CERN-EP-2024-204; LHCb-PAPER-2024-019.- Geneva : CERN, 2024-12-16 - 21 p. - Published in : Phys. Rev. Lett. 133 (2024) 251801 Fulltext: PDF; Related data file(s): ZIP;
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Determination of the Relative Sign of the Higgs Boson Couplings to <math display="inline"><mrow><mi>W</mi></mrow></math> and <math display="inline"><mi>Z</mi></math> Bosons Using <math display="inline"><mi>W</mi><mi>H</mi></math> Production via Vector-Boson Fusion with the ATLAS Detector / ATLAS Collaboration
The associated production of Higgs and $W$ bosons via vector-boson fusion (VBF) is highly sensitive to the relative sign of the Higgs boson couplings to $W$ and $Z$ bosons. In this Letter, two searches for this process are presented, using 140 fb$^{-1}$ of proton-proton collision data at $\sqrt{s}$ = 13 TeV recorded by the ATLAS detector at the LHC. [...]
arXiv:2402.00426; CERN-EP-2023-286.- Geneva : CERN, 2024-10-02 - 22 p. - Published in : Phys. Rev. Lett. 133 (2024) 141801 Fulltext: 2402.00426 - PDF; Publication - PDF; External link: Previous draft version
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Studies of the Energy Dependence of Diboson Polarization Fractions and the Radiation-Amplitude-Zero Effect in <math display="inline"><mrow><mi>W</mi><mi>Z</mi></mrow></math> Production with the ATLAS Detector / ATLAS Collaboration
This Letter presents the first study of the energy-dependence of diboson polarization fractions in $WZ \rightarrow \ell\nu \ell'\ell'~(\ell, \ell'=e, \mu)$ production. The data set used corresponds to an integrated luminosity of 140 fb$^{-1}$ of proton-proton collisions at a center-of-mass energy of 13 TeV recorded by the ATLAS detector. [...]
arXiv:2402.16365; CERN-EP-2024-045.- Geneva : CERN, 2024-09-05 - 24 p. - Published in : Phys. Rev. Lett. Fulltext: 2402.16365 - PDF; Publication - PDF; External link: Previous draft version
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A statistical combination of ATLAS Run 2 searches for charginos and neutralinos at the LHC / ATLAS Collaboration
Statistical combinations of searches for charginos and neutralinos using various decay channels are performed using $139\,$fb$^{-1}$ of $pp$ collision data at $\sqrt{s}=13\,$TeV with the ATLAS detector at the Large Hadron Collider. Searches targeting pure-wino chargino pair production, pure-wino chargino-neutralino production, or higgsino production decaying via Standard Model $W$, $Z$, or $h$ bosons are combined to extend the mass reach to the produced SUSY particles by 30-100 GeV. [...]
arXiv:2402.08347; CERN-EP-2024-018.- Geneva : CERN, 2024-07-19 - 21 p. - Published in : Phys. Rev. Lett. 133 (2024) 031802 Fulltext: PDF; External link: Previous draft version
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Search for Light Long-Lived Particles in $pp$ Collisions at $\sqrt{s}=13$ TeV Using Displaced Vertices in the ATLAS Inner Detector / ATLAS Collaboration
A search for long-lived particles (LLPs) using 140 fb$^{-1}$ of $pp$ collision data with $\sqrt{s} = 13$ TeV recorded by the ATLAS experiment at the LHC is presented. The search targets LLPs with masses between $5$ and $55$ GeV that decay hadronically in the ATLAS inner detector. [...]
arXiv:2403.15332; CERN-EP-2024-086.- Geneva : CERN, 2024-10-17 - 24 p. - Published in : Phys. Rev. Lett. 133 (2024) 161803 Fulltext: 2403.15332 - PDF; Publication - PDF; External link: Previous draft version
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Calibration of a soft secondary vertex tagger using proton-proton collisions at $\sqrt{s}=$13 TeV with the ATLAS detector / ATLAS Collaboration
Several processes studied by the ATLAS experiment at the Large Hadron Collider produce low-momentum $b$-flavored hadrons in the final state. This paper describes the calibration of a dedicated tagging algorithm that identifies $b$-flavored hadrons outside of hadronic jets by reconstructing the soft secondary vertices originating from their decays. [...]
arXiv:2405.03253; CERN-EP-2024-108.- Geneva : CERN, 2024-08-01 - 30 p. - Published in : Phys. Rev. D 110 (2024) 032015 Fulltext: 2405.03253 - PDF; Publication - PDF; External link: Previous draft version
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Search for pair-produced vector-like quarks coupling to light quarks in the lepton plus jets final state using 13 TeV $pp$ collisions with the ATLAS detector / ATLAS Collaboration
A search is presented for the pair-production of heavy vector-like quarks (VLQs) that each decay into a $W$ boson and a light quark. This study focuses on events where one $W$ boson decays into leptons and the other into hadrons. [...]
arXiv:2405.19862; CERN-EP-2024-130.- Geneva : CERN, 2024-09-01 - 27 p. - Published in : Phys. Rev. D 110 (2024) 052009 Fulltext: 2405.19862 - PDF; Publication - PDF; External link: Previous draft version
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Search for low-mass resonances decaying into two jets and produced in association with a photon or a jet at $\sqrt{s}=13$ TeV with the ATLAS detector / ATLAS Collaboration
A search is performed for localized excesses in the low-mass dijet invariant mass distribution, targeting a hypothetical new particle decaying into two jets and produced in association with either a high transverse momentum photon or a jet. The search uses the full Run 2 data sample from LHC proton-proton collisions collected by the ATLAS experiment at a center-of-mass energy of 13 TeV during 2015-2018. [...]
arXiv:2403.08547; CERN-EP-2024-044.- Geneva : CERN, 2024-08-01 - 30 p. - Published in : Phys. Rev. D 110 (2024) 032002 Fulltext: Publication - PDF; 2403.08547 - PDF;
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Search for the Z boson decay to $ \tau\tau\mu\mu $ in proton-proton collisions at $ \sqrt{s}= $ 13 TeV / CMS Collaboration
The first search for the $\mathrm{Z}$ boson decay to $ \tau\tau\mu\mu $ at the CERN LHC is presented, based on data collected by the CMS experiment at the LHC in proton-proton collisions at a center-of-mass energy of 13 TeV and corresponding to an integrated luminosity of 138 fb$ ^{-1} $. The data are compatible with the predicted background. [...]
arXiv:2404.18298; CMS-SMP-22-016; CERN-EP-2024-107; CMS-SMP-22-016-003.- Geneva : CERN, 2024-10-18 - 20 p. - Published in : Phys. Rev. Lett. 133 (2024) 161805 Fulltext: 2404.18298 - PDF; FERMILAB-PUB-24-0347-CMS - PDF; Fulltext from Publisher: PDF; External link: Fermilab Library Server
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