Browsing Particle Physics by Title
Now showing items 464-483 of 971
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Observation and Measurement of Forward Proton Scattering in Association with Lepton Pairs Produced via the Photon Fusion Mechanism at ATLAS
(American Physical Society, 2020-12-23)The observation of forward proton scattering in association with lepton pairs ( e + e − + p or μ + μ − + p ) produced via photon fusion is presented. The scattered proton is detected by the ATLAS Forward ... -
Observation of an Excess of Dicharmonium Events in the Four-Muon Final State with the ATLAS Detector.
(2023-10-13)A search is made for potential ccc[over ¯]c[over ¯] tetraquarks decaying into a pair of charmonium states in the four muon final state using proton-proton collision data at sqrt[s]=13 TeV, corresponding to an integrated ... -
Observation of electroweak production of two jets and a Z-boson pair
(Nature Research, 2023-02)Electroweak symmetry breaking explains the origin of the masses of elementary particles through their interactions with the Higgs field. Besides the measurements of the Higgs boson properties, the study of the scattering ... -
Observation of electroweak production of two jets and a Z-boson pair
(Nature Research, 2023-02)Electroweak symmetry breaking explains the origin of the masses of elementary particles through their interactions with the Higgs field. Besides the measurements of the Higgs boson properties, the study of the scattering ... -
Observation of Higgs boson production in association with a top quark pair at the LHC with the ATLAS detector
(Elsevier, 2018-07-10)The observation of Higgs boson production in association with a top quark pair (), based on the analysis of proton–proton collision data at a centre-of-mass energy of 13 TeV recorded with the ATLAS detector at the Large ... -
Observation of photon-induced W + W − production in pp collisions at s = 13 TeV using the ATLAS detector
(Elsevier, 2021-03-01)This letter reports the observation of photon-induced production of W-boson pairs, . The analysis uses 139 fb−1 of LHC proton–proton collision data taken at TeV recorded by the ATLAS experiment during the years ... -
Observation of Single-Top-Quark Production in Association with a Photon Using the ATLAS Detector.
(2023-11-03)This Letter reports the observation of single top quarks produced together with a photon, which directly probes the electroweak coupling of the top quark. The analysis uses 139 fb^{-1} of 13 TeV proton-proton collision ... -
Observation of the Decay D-0 -> K- pi(+) e(+) e(-)
(American Physical Society, 2019-02-27)We report the observation of the rare charm decay D 0 → K − π + e + e − , based on 468 fb − 1 of e + e − annihilation data collected at or close to the center-of-mass energy of the ... -
Observation of the γγ→ττ Process in Pb+Pb Collisions and Constraints on the τ-Lepton Anomalous Magnetic Moment with the ATLAS Detector.
(2023-10-13)This Letter reports the observation of τ-lepton-pair production in ultraperipheral lead-lead collisions Pb+Pb→Pb(γγ→ττ)Pb and constraints on the τ-lepton anomalous magnetic moment a_{τ}. The dataset corresponds to an ...