Accès ouvert
2026
article
OpenAlex
G. Aad, Erlend Aakvaag, B. Abbott, Sara Abdelhameed et autres
A bstract This paper presents differential cross-section measurements of events containing a charged lepton, missing transverse momentum, two b -jets, and two light jets, consistent with the $$ {W}^{+}{W}^{-}b\overline{b} $$ W + W − b b ¯ final state. The analysis is …
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Accès ouvert
2026
preprint
OpenAlex
Georges Aad, Erlend Aakvaag, B. Abbott, Sara Abdelhameed et autres
This paper presents the first measurements of the azimuthal anisotropy coefficients vn, which quantify the nth-order Fourier modulation of charged-particle azimuthal distributions, for n=2−4 in $\sqrt{s_\mathrm{NN}}$ = 5.36 TeV $^{16}$O+O$^{16}$ and $^{20}$Ne + Ne$^{20}$ collisions recorded with the ATLAS detector at the …
fr, de
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Accès ouvert
2025
article
OpenAlex
G. Aad, B. Abbott, K. Abeling, Nils Julius Abicht et autres
A search is conducted for a new scalar boson S , with a mass distinct from that of the Higgs boson, decaying promptly into four leptons ( ℓ = e , μ ) via an intermediate state containing two on-shell, promptly decaying …
fr, us, de, Maroc, il, cl, it, pl, ca, gb, tr
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Accès ouvert
2025
article
OpenAlex
Georges Aad, Erlend Aakvaag, B. Abbott, Sara Abdelhameed et autres
Abstract In 2022 and 2023, the Large Hadron Collider produced approximately two billion hadronic interactions each second from bunches of protons that collide at a rate of 40 MHz. The ATLAS trigger system is used to reduce this rate to a few …
fr
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Accès ouvert
2025
preprint
OpenAlex
G. Aad, Erlend Aakvaag, B. Abbott, Sara Abdelhameed et autres
This Letter presents a constraint on the total width of the Higgs boson (ΓH) using a combined measurement of on-shell Higgs boson production and the production of four top quarks, which involves contributions from off-shell Higgs boson-mediated processes. This method relies on …
fr, de
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Accès ouvert
2025
preprint
OpenAlex
Georges Aad, Erlend Aakvaag, B. Abbott, Sara Abdelhameed et autres
Measurements of jet substructure are key to probing the energy frontier at colliders, and many of them use track-based observables which take advantage of the angular precision of tracking detectors. Theoretical calculations of track-based observables require `track functions', which characterize the transverse …
fr, de
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Accès ouvert
2025
preprint
OpenAlex
Georges Aad, Erlend Aakvaag, B. Abbott, Sara Abdelhameed et autres
An anomaly detection search for narrow-width resonances beyond the Standard Model that decay into a pair of jets is presented. The search is based on 139 fb$^{-1}$ of proton-proton collisions at $\sqrt{s}=13$ TeV recorded during 2015-2018 with the ATLAS detector at the …
fr, de
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Accès ouvert
2025
preprint
OpenAlex
Georges Aad, Erlend Aakvaag, B. Abbott, Sara Abdelhameed et autres
A search for the production of a Higgs boson in association with a single top quark, $tH$, is presented. The analysis uses proton-proton collision data corresponding to an integrated luminosity of $140\mathrm{fb}^{-1}$ at a centre-of-mass energy of $13$ TeV, collected by the …
fr, de
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Accès ouvert
2025
article
OpenAlex
Georges Aad, Erlend Aakvaag, B. Abbott, Sara Abdelhameed et autres
The inclusive top quark pair ($t\bar{t}$) cross-section $\sigma _{t\bar{t}}$ has been measured in proton–proton collisions at $\sqrt{s}=13\,\text {TeV}$, using $140\,{\text {fb}^{-1}} $ of data collected by the ATLAS experiment at the Large Hadron Collider. Using events with an opposite-charge $e\mu $ pair …
fr, de
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Accès ouvert
2025
article
OpenAlex
Georges Aad, Erlend Aakvaag, Yiming Abulaiti, T. Aoki et autres
A search for cascade decays of charged sleptons and sneutrinos using final states characterized by three leptons (electrons or muons) and missing transverse momentum is presented. The analysis is based on a dataset with 140 fb$^{-1}$ of proton-proton (pp) collisions at a …
fr
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Accès ouvert
2025
preprint
OpenAlex
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 …
fr, de
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Accès ouvert
2025
preprint
OpenAlex
Georges Aad, Erlend Aakvaag, B. Abbott, Sara Abdelhameed et autres
Measurements of integrated and differential cross-sections for $W^{\pm}Z$ production in proton-proton collisions are presented. The data collected by the ATLAS detector at the Large Hadron Collider from 2015 to 2018 at a centre-of-mass energy of $\sqrt{s} =$ 13 TeV are used, corresponding …
fr, de
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