Eckhard von Torne

Electroweak, QCD and flavour physics studies with ATLAS data from Run 2 of the LHC

G. Aad, Erlend Aakvaag, B. Abbott, Sara Abdelhameed et autres

A summary of precision measurements sensitive to electroweak, QCD and quark-flavour effects performed by the ATLAS Collaboration at the Large Hadron Collider is reported. The measurements are predominantly performed on proton-proton ($pp$) collision data recorded at a centre-of-mass energy of 13 TeV …

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Probing the Higgs boson CP properties in vector-boson fusion production in the $H\rightarrowτ^+τ^-$ channel with the ATLAS detector

Erlend Aakvaag, B. Abbott, Sara Abdelhameed, Kira Abeling et autres

The CP properties of the Higgs boson are studied in the vector-boson fusion production mode. The analysis exploits the decay mode of the Higgs boson into two $τ$-leptons using 140 fb$^{-1}$ of proton-proton collision data at $\sqrt{s}=13$ TeV collected by the ATLAS …

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Search for decays of the Higgs boson into scalar particles decaying into four or six $b$-quarks using $pp$ collisions at $\sqrt{s}= 13\,\mathrm{TeV}$ with the ATLAS detector

Georges Aad, Erlend Aakvaag, B. Abbott, Sara Abdelhameed et autres

A search for exotic decays of the Higgs boson $H$ into new scalar or pseudoscalar particles that subsequently decay into $b$-quarks is presented. The search considers $ZH$ production with several decay scenarios for the Higgs boson: first to a pair of identical …

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Measurements of Higgs boson production via gluon-gluon fusion and vector-boson fusion using $H\rightarrow WW^\ast \rightarrow \ellν\ellν$ decays in $pp$ collisions with the ATLAS detector and their effective field theory interpretations

Erlend Aakvaag, B. Abbott, Sara Abdelhameed, K. Abeling et autres

Higgs boson production cross-sections via gluon-gluon fusion and vector-boson fusion in proton-proton collisions are measured in the $H\rightarrow WW^\ast \rightarrow \ellν\ellν$ decay channel. The Large Hadron Collider delivered proton-proton collisions at a centre-of-mass energy of $13\,\textrm{TeV}$ between 2015 and 2018, which were …

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Measurement of the top quark mass with the ATLAS detector using $t\bar{t}$ events with a high transverse momentum top quark

G. Aad, Erlend Aakvaag, Yiming Abulaiti, M. A. Aparo et autres

The mass of the top quark is measured using top-quark-top-antiquark pair events with high transverse momentum top quarks. The dataset, collected with the ATLAS detector in proton–proton collisions at $\sqrt{s}$ = 13 TeV delivered by the Large Hadron Collider, corresponds to an …

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Measurements of the production cross-sections of a Higgs boson in association with a vector boson and decaying into $WW^\ast$ with the ATLAS detector at $\sqrt{s} = 13$ TeV

Georges Aad, Erlend Aakvaag, H. Abreu, C. Antel et autres

Measurements of the total and differential Higgs boson production cross-sections, via $WH$ and $ZH$ associated production using $H\rightarrow WW^\ast\rightarrow\ell\nu\ell\nu$ and $H\rightarrow WW^\ast\rightarrow\ell\nu jj$ decays, are presented. The analysis uses proton-proton events delivered by the Large Hadron Collider at a centre-of-mass energy of …

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Measurement of photonuclear jet production in ultra-peripheral Pb+Pb collisions at $\sqrt{s_{\text{NN}}} = 5.02$ TeV with the ATLAS detector

B. Abbott, Sara Abdelhameed, K. Abeling, Nils Julius Abicht et autres

In ultra-relativistic heavy ion collisions at the LHC, each nucleus acts a sources of high-energy real photons that can scatter off the opposing nucleus in ultra-peripheral photonuclear ($γ+A$) collisions. Hard scattering processes initiated by the photons in such collisions provide a novel …

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Search 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

G. Aad, B. Abbott, K. Abeling, Nils Julius Abicht et autres

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 top-quark topology produced in association with large …

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Differential cross-section measurements of the production of four charged leptons in association with two jets using the ATLAS detector

Georges Aad, B. Abbott, K. Abeling, Nils Julius Abicht et autres

Differential cross-sections are measured for the production of four charged leptons in association with two jets. These measurements are sensitive to final states in which the jets are produced via the strong interaction as well as to the purely-electroweak vector boson scattering …

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Electron and photon efficiencies in LHC Run 2 with the ATLAS experiment

G Aad, B Abbott, Claire Adam Bourdarios, Ludovica Aperio Bella et autres

Abstract 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 experiment in pp collisions at a centre-of-mass energy of 13 TeV during the years …

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Search for a new Z' gauge boson in $4\mu$ events with the ATLAS experiment

ATLAS Collaboration, Georges Aad, A. C. Abusleme Hoffman, Ayana Tamu Arce et autres

ATLAS flavour-tagging algorithms for the LHC Run 2 pp collision dataset

ATLAS Collaboration, Georges Aad, A. C. Abusleme Hoffman, Ayana Tamu Arce et autres