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731 Result(s)
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Article
Open AccessSearch for the \( {B}_s^0 \) → μ+μ−γ decay
A search for the fully reconstructed B s 0 ...
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Open AccessMeasurement of e+e− → ωη′ cross sections at \( \sqrt{s} \) = 2.000 to 3.080 GeV
We measured the Born cross sections for the process e+e− → ωη′ at 22 center-of-mass energies from 2.000 to 3.080 GeV with the BESIII detector at the BEPCII collider. We observed a resonant structure with a statis...
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Article
Open AccessIntegrated preparation and manipulation of high-dimensional flying structured photons
The hope for a futuristic global quantum internet that provides robust and high-capacity quantum information transfer lies largely on qudits, the fundamental quantum information carriers prepared in high-dimen...
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Open AccessMeasurements of electroweak W±Z boson pair production in association with two jets in pp collisions at \( \sqrt{s} \) = 13 TeV with the ATLAS detector
Measurements of integrated and differential cross-sections for electroweak W±Z production in association with two jets (W±Zjj) in proton-proton collisions are presented. The data collected by the ATLAS detector a...
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Open AccessSearch for long-lived heavy neutrinos in the decays of B mesons produced in proton-proton collisions at \( \sqrt{s} \) = 13 TeV
A search for long-lived heavy neutrinos (N) in the decays of B mesons produced in proton-proton collisions at ...
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Article
Open AccessSearch for heavy neutral leptons in final states with electrons, muons, and hadronically decaying tau leptons in proton-proton collisions at \( \sqrt{s} \) = 13 TeV
A search for heavy neutral leptons (HNLs) of Majorana or Dirac type using proton-proton collision data at ...
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Open AccessAmplitude analysis of the \( {\Lambda}_{\textrm{b}}^0\to {\textrm{pK}}^{-}\upgamma \) decay
The resonant structure of the radiative decay Λ b 0 ...
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Open AccessMeasurement of absolute branching fractions of \( {\textrm{D}}_{\textrm{s}}^{+} \) hadronic decays
Using e+e− collision data collected at the BESIII detector at center-of-mass energies between 4.128 and 4.226 GeV, corresponding to an integrated luminosity of 7.33 fb−1, we determine the absolute branching fract...
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Open AccessMeasurement of t-channel production of single top quarks and antiquarks in pp collisions at 13 TeV using the full ATLAS Run 2 data sample
The production of single top quarks and top antiquarks via the t-channel exchange of a virtual W boson is measured in proton-proton collisions at a centre-of-mass energy of 13 TeV at the LHC using 140 fb−1 of ATL...
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Article
Open AccessMeasurements of the branching fraction ratio \( \mathcal{B}\left(\phi \to {\mu}^{+}{\mu}^{-}\right)/\mathcal{B}\left(\phi \to {\textrm{e}}^{+}{\textrm{e}}^{-}\right) \) with charm meson decays
Measurements of the branching fraction ratio B ϕ ...
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Article
Open AccessSearch for new particles in final states with a boosted top quark and missing transverse momentum in proton-proton collisions at \( \sqrt{s} \) = 13 TeV with the ATLAS detector
A search for events with one top quark and missing transverse momentum in the final state is presented. The fully hadronic decay of the top quark is explored by selecting events with a reconstructed boosted to...
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Article
Open AccessMeasurement of associated J/ψ-ψ(2S) production cross-section in pp collisions at \( \sqrt{s} \) = 13 TeV
The cross-section of associated J/ψ-ψ(2S) production in proton-proton collisions at a centre-of-mass energy of ...
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Article
Open AccessMultiplicity dependence of σψ(2S)/σJ/ψ in pp collisions at \( \sqrt{s} \) = 13 TeV
The ratio of production cross-sections of ψ(2S) over J/ψ mesons as a function of charged-particle multiplicity in proton-proton collisions at a centre-of-mass energy
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Article
Open AccessA measurement of ∆Γs
Using a dataset corresponding to 9 fb−1 of integrated luminosity collected with the LHCb detector between 2011 and 2018 in proton-proton collisions, the decay-time distributions of the decay modes ...
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Open AccessElectron and photon efficiencies in LHC Run 2 with the ATLAS experiment
Precision measurements of electron reconstruction, identification, and isolation efficiencies and photon identification efficiencies are presented. They use the full Run 2 data sample collected by the ATLAS ex...
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Article
Open AccessSearch for ∆S = 2 nonleptonic hyperon decays Ω− → Σ0π− and Ω− → nK−
Using (27.12 ± 0.14) × 108 ψ(3686) events collected by the BESIII detector at the center-of-mass energy of ...
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Article
Open AccessSearch for electroweak production of supersymmetric particles in final states with two τ-leptons in \( \sqrt{s} \) = 13 TeV pp collisions with the ATLAS detector
Three searches for the direct production of τ-sleptons or charginos and neutralinos in final states with at least two hadronically decaying τ-leptons are presented. For chargino and neutralino production, decays ...
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Article
Open AccessMeasurement of the total and differential cross-sections of \( t\overline{t}W \) production in pp collisions at \( \sqrt{s} \) = 13 TeV with the ATLAS detector
Measurements of inclusive and differential production cross-sections of a top-quark-top-antiquark pair in association with a W boson ( ...
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Article
Open AccessATLAS Run 2 searches for electroweak production of supersymmetric particles interpreted within the pMSSM
A summary of the constraints from searches performed by the ATLAS collaboration for the electroweak production of charginos and neutralinos is presented. Results from eight separate ATLAS searches are consider...
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Open AccessTest of CP-invariance of the Higgs boson in vector-boson fusion production and in its decay into four leptons
A search for CP violation in the decay kinematics and vector-boson fusion production of the Higgs boson is performed in the H → ZZ* → 4ℓ (ℓ = e, μ) decay channel. The results are based on proton-proton collision ...