Marcel Niemeyer

Combination of searches for pair-produced leptoquarks at $\sqrt{s} = 13$ TeV with the ATLAS detector

Georges Aad, Erlend Aakvaag, B. Abbott, K. Abeling et autres

A statistical combination of various searches for pair-produced leptoquarks is presented, using the full LHC Run 2 (2015-2018) data set of $139$ fb$^{-1}$ collected with the ATLAS detector from proton-proton collisions at a centre-of-mass energy of $\sqrt{s}=13$ TeV. All possible decays of …

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Evidence for the $VH, H\rightarrow \tau\tau$ process with the ATLAS detector in Run 2

G. Aad, Erlend Aakvaag, B. Abbott, K. Abeling et autres

A measurement of the Standard Model Higgs boson produced in association with a $W$ or $Z$ boson and decaying into a pair of $τ$-leptons is presented. This search is based on proton-proton collision data collected at $\sqrt{s}=13$ TeV by the ATLAS experiment …

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Inclusive and differential cross-section measurements of $t\bar{t}Z$ production in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector, including EFT and spin-correlation interpretations

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

Measurements of both the inclusive and differential production cross sections of a top-quark-top-antiquark pair in association with a $Z$ boson ($t\bar{t}Z$) are presented. Final states with two, three or four isolated leptons (electrons or muons) are targeted. The measurements use the data …

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arXiv : Search for exotic decays of the Higgs boson into long-lived particles in $pp$ collisions at $\sqrt{s} = 13$ TeV using displaced vertices in the ATLAS inner detector

G. Aad, A. Kupčo, J. Chan, M. A. Principe Martin et autres

A novel search for exotic decays of the Higgs boson into pairs of long-lived neutral particles, each decaying into a bottom quark pair, is performed using 139 fb$^{-1}$ of $\sqrt{s} = 13$ TeV proton-proton collision data collected with the ATLAS detector at …

Evidence for Higgs boson decays to a low-mass dilepton system and a photon in pp collisions at s=13 TeV with the ATLAS detector

G. Aad, B. Abbott, D. C. Abbott, A. Abed Abud et autres

A search for the Higgs boson decaying into a photon and a pair of electrons or muons with an invariant mass m ℓ ℓ < 30 GeV is presented. The analysis is performed using 139 fb −1 of proton–proton collision data, produced …

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Observation of photon-induced W+W− production in pp collisions at s=13 TeV using the ATLAS detector

G. Aad, B. Abbott, D. C. Abbott, A. Abed Abud et autres

This letter reports the observation of photon-induced production of W -boson pairs, γ γ → W W . The analysis uses 139 fb −1 of LHC proton–proton collision data taken at s = 13 TeV recorded by the ATLAS experiment during the …

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Medium-Induced Modification of Z -Tagged Charged Particle Yields in Pb + Pb Collisions at 5.02 TeV with the ATLAS Detector

G. Aad, B. Abbott, D. C. Abbott, A. Abed Abud et autres

The yield of charged particles opposite to a Z boson with large transverse momentum (p_{T}) is measured in 260 pb^{-1} of pp and 1.7 nb^{-1} of Pb+Pb collision data at 5.02 TeV per nucleon pair recorded with the ATLAS detector at the …

fr, us, ch, de, gb, ca, dk, il, it, pl, tr, nl, ro, es, pt, ru, jp, se, gr, cz, tw, ar, br (code pays fourni par la source)

Search for new phenomena in three- or four-lepton events in $pp$ collisions at $\sqrt s$ =13 TeV with the ATLAS detector

G. Aad, B. Abbott, D. C. Abbott, K. Abeling et autres

A search with minimal model dependence for physics beyond the Standard Model in events featuring three or four charged leptons (3ℓ and 4ℓ, ℓ=e,μ) is presented. The analysis aims to be sensitive to a wide range of potential new-physics theories simultaneously. This …

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Observation and Measurement of Forward Proton Scattering in Association with Lepton Pairs Produced via the Photon Fusion Mechanism at ATLAS

G. Aad, B. Abbott, D. C. Abbott, A. Abed Abud et autres

The observation of forward proton scattering in association with lepton pairs (${e}^{+}{e}^{\ensuremath{-}}+p$ or ${\ensuremath{\mu}}^{+}{\ensuremath{\mu}}^{\ensuremath{-}}+p$) produced via photon fusion is presented. The scattered proton is detected by the ATLAS Forward Proton spectrometer, while the leptons are reconstructed by the central ATLAS detector. Proton-proton …

fr, us, ch, de, gb, ca, dk, il, it, pl, tr, nl, ro, es, pt, ru, jp, se, gr, cz, tw, ar, br (code pays fourni par la source)

Search for new phenomena in final states with large jet multiplicities and missing transverse momentum using $$ \sqrt{s} $$ = 13 TeV proton-proton collisions recorded by ATLAS in Run 2 of the LHC

G. Aad, B. Abbott, D. C. Abbott, A. Abed Abud et autres

Abstract Results of a search for new particles decaying into eight or more jets and moderate missing transverse momentum are presented. The analysis uses 139 fb−1 of proton-proton collision data at $$ \sqrt{s} $$ s = 13 TeV collected by the ATLAS …

fr, us, ch, de, gb, ca, dk, il, it, pl, tr, nl, ro, pt, ru, jp, se, gr, ar, es, br (code pays fourni par la source)

A search for the Zγ decay mode of the Higgs boson in pp collisions at s=13 TeV with the ATLAS detector

G. Aad, B. Abbott, D. C. Abbott, A. Abed Abud et autres

A search for the Zγ decay of the Higgs boson, with Z boson decays into pairs of electrons or muons is presented. The analysis uses proton–proton collision data at s = 13 TeV corresponding to an integrated luminosity of 139 fb −1 …

fr, us, ch, de, gb, ca, dk, il, it, pl, au (code pays fourni par la source)

C P Properties of Higgs Boson Interactions with Top Quarks in the t t ¯ H and t H Processes Using H → γ γ with the ATLAS Detector

G. Aad, B. Abbott, D. C. Abbott, A. Abed Abud et autres

A study of the charge conjugation and parity ($CP$) properties of the interaction between the Higgs boson and top quarks is presented. Higgs bosons are identified via the diphoton decay channel ($H\ensuremath{\rightarrow}\ensuremath{\gamma}\ensuremath{\gamma}$), and their production in association with a top quark pair …

fr, us, ch, de, gb, ca, dk, il, it, pl, tr, nl, ro, es, pt, ru, jp, se, gr, cz, tw, ar, br (code pays fourni par la source)