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Advanced Search Results For "O'Neil G"

1 - 10 of 2,602 results for
 "O'Neil G"
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The ATLAS inner detector trigger performance in pp collisions at 13 TeV during LHC Run 2

Publication Type:Academic Journal

Source(s):European Physical Journal C: Particles and Fields, Vol 82, Iss 3, Pp 1-57 (2022)

Abstract:Abstract The design and performance of the inner detector trigger for the high level trigger of the ATLAS experiment at the Large Hadron Collider during the 2016–2018 data taking period is discussed. In 2016, 2017, and 2018 the ATLAS detector recorded ...

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Search for Higgs bosons decaying into new spin-0 or spin-1 particles in four-lepton final states with the ATLAS detector with 139 fb −1 of pp collision data at s $$ \sqrt{s} $$ = 13 TeV

Publication Type:Academic Journal

Source(s):Journal of High Energy Physics, Vol 2022, Iss 3, Pp 1-64 (2022)

Abstract:Abstract Searches are conducted for new spin-0 or spin-1 bosons using events where a Higgs boson with mass 125 GeV decays into four leptons (ℓ = e, μ). This decay is presumed to occur via an intermediate state which contains two on-shell, promptly deca...

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Observation of electroweak production of two jets in association with an isolated photon and missing transverse momentum, and search for a Higgs boson decaying into invisible particles at 13 $$\text {TeV}$$ TeV with the ATLAS detector

Publication Type:Academic Journal

Source(s):European Physical Journal C: Particles and Fields, Vol 82, Iss 2, Pp 1-41 (2022)

Abstract:Abstract This paper presents a measurement of the electroweak production of two jets in association with a $$Z\gamma $$ Z γ pair, with the Z boson decaying into two neutrinos. It also presents a search for invisible or partially invisible decays of a H...

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Performance of the ATLAS Level-1 topological trigger in Run 2

Publication Type:Academic Journal

Source(s):European Physical Journal C: Particles and Fields, Vol 82, Iss 1, Pp 1-26 (2022)

Abstract:Abstract During LHC Run 2 (2015–2018) the ATLAS Level-1 topological trigger allowed efficient data-taking by the ATLAS experiment at luminosities up to 2.1 $$\times $$ × 10 $$^{34}$$ 34 cm $$^{-2}$$ - 2 s $$^{-1}$$ - 1 , which exceeds the design value ...

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Search for the radiative Ξ b − $$ {\Xi}_b^{-} $$ → Ξ − γ decay

Publication Type:Academic Journal

Source(s):Journal of High Energy Physics, Vol 2022, Iss 1, Pp 1-20 (2022)

Abstract:Abstract The first search for the rare radiative decay Ξ b − $$ {\Xi}_b^{-} $$ → Ξ − γ is performed using data collected by the LHCb experiment in proton-proton collisions at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity ...

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Measurement of the W boson mass

Publication Type:Academic Journal

Source(s):Journal of High Energy Physics, Vol 2022, Iss 1, Pp 1-38 (2022)

Abstract:Abstract The W boson mass is measured using proton-proton collision data at s $$ \sqrt{s} $$ = 13 TeV corresponding to an integrated luminosity of 1.7 fb −1 recorded during 2016 by the LHCb experiment. With a simultaneous fit of the muon q/p T distribu...

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Study of B c + $$ {\mathrm{B}}_{\mathrm{c}}^{+} $$ decays to charmonia and three light hadrons

Publication Type:Academic Journal

Source(s):Journal of High Energy Physics, Vol 2022, Iss 1, Pp 1-28 (2022)

Abstract:Abstract Using proton-proton collision data, corresponding to an integrated luminosity of 9 fb −1 collected with the LHCb detector, seven decay modes of the B c + $$ {\mathrm{B}}_{\mathrm{c}}^{+} $$ meson into a J/ψ or ψ(2S) meson and three charged had...

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Search for exotic decays of the Higgs boson into b b ¯ $$ \overline{b} $$ and missing transverse momentum in pp collisions at s $$ \sqrt{s} $$ = 13 TeV with the ATLAS detector

Publication Type:Academic Journal

Source(s):Journal of High Energy Physics, Vol 2022, Iss 1, Pp 1-38 (2022)

Abstract:Abstract A search for the exotic decay of the Higgs boson (H) into a b b ¯ $$ \overline{b} $$ resonance plus missing transverse momentum is described. The search is performed with the ATLAS detector at the Large Hadron Collider using 139 fb −1 of pp co...

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Measurement of χ c1(3872) production in proton-proton collisions at s $$ \sqrt{s} $$ = 8 and 13 TeV

Publication Type:Academic Journal

Source(s):Journal of High Energy Physics, Vol 2022, Iss 1, Pp 1-27 (2022)

Abstract:Abstract The production cross-section of the χ c1(3872) state relative to the ψ(2S) meson is measured using proton-proton collision data collected with the LHCb experiment at centre-of-mass energies of s $$ \sqrt{s} $$ = 8 and 13 TeV, corresponding to ...

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