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  1. Abstract

    A search for leptoquark pair production decaying into$$te^- \bar{t}e^+$$te-t¯e+or$$t\mu ^- \bar{t}\mu ^+$$tμ-t¯μ+in final states with multiple leptons is presented. The search is based on a dataset ofppcollisions at$$\sqrt{s}=13~\text {TeV} $$s=13TeVrecorded with the ATLAS detector during Run 2 of the Large Hadron Collider, corresponding to an integrated luminosity of 139 fb$$^{-1}$$-1. Four signal regions, with the requirement of at least three light leptons (electron or muon) and at least two jets out of which at least one jet is identified as coming from ab-hadron, are considered based on the number of leptons of a given flavour. The main background processes are estimated using dedicated control regions in a simultaneous fit with the signal regions to data. No excess above the Standard Model background prediction is observed and 95% confidence level limits on the production cross section times branching ratio are derived as a function of the leptoquark mass. Under the assumption of exclusive decays into$$te^{-}$$te-($$t\mu ^{-}$$tμ-), the corresponding lower limit on the scalar mixed-generation leptoquark mass$$m_{\textrm{LQ}_{\textrm{mix}}^{\textrm{d}}}$$mLQmixdis at 1.58 (1.59) TeV and on the vector leptoquark mass$$m_{{\tilde{U}}_1}$$mU~1at 1.67 (1.67) TeV in the minimal coupling scenario and at 1.95 (1.95) TeV in the Yang–Mills scenario.

     
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    Free, publicly-accessible full text available August 1, 2025
  2. A search for high-mass resonances decaying into aτ-lepton and a neutrino using proton-proton collisions at a center-of-mass energy ofs=13TeVis presented. The full run 2 data sample corresponding to an integrated luminosity of139fb1recorded by the ATLAS experiment in the years 2015–2018 is analyzed. Theτ-lepton is reconstructed in its hadronic decay modes and the total transverse momentum carried out by neutrinos is inferred from the reconstructed missing transverse momentum. The search for new physics is performed on the transverse mass between theτ-lepton and the missing transverse momentum. No excess of events above the Standard Model expectation is observed and upper exclusion limits are set on theWτνproduction cross section. HeavyWvector bosons with masses up to 5.0 TeV are excluded at 95% confidence level, assuming that they have the same couplings as the Standard ModelWboson. For nonuniversal couplings,Wbosons are excluded for masses less than 3.5–5.0 TeV, depending on the model parameters. In addition, model-independent limits on the visible cross section times branching ratio are determined as a function of the lower threshold on the transverse mass of theτ-lepton and missing transverse momentum.

    <supplementary-material><permissions><copyright-statement>© 2024 CERN, for the ATLAS Collaboration</copyright-statement><copyright-year>2024</copyright-year><copyright-holder>CERN</copyright-holder></permissions></supplementary-material></sec> </div> <a href='#' class='show open-abstract' style='margin-left:10px;'>more »</a> <a href='#' class='hide close-abstract' style='margin-left:10px;'>« less</a> <div class="actions" style="padding-left:10px;"> <span class="reader-count"> Free, publicly-accessible full text available June 1, 2025</span> </div> </div><div class="clearfix"></div> </div> </li> <li> <div class="article item document" itemscope itemtype="http://schema.org/TechArticle"> <div class="item-info"> <div class="title"> <a href="https://par.nsf.gov/biblio/10439794-reconstruction-interactions-protodune-sp-detector-pandora" itemprop="url"> <span class='span-link' itemprop="name">Reconstruction of interactions in the ProtoDUNE-SP detector with Pandora</span> </a> </div> <div> <strong> <a class="misc external-link" href="https://doi.org/10.1140/epjc/s10052-023-11733-2" target="_blank" title="Link to document DOI">https://doi.org/10.1140/epjc/s10052-023-11733-2  <span class="fas fa-external-link-alt"></span></a> </strong> </div> <div class="metadata"> <span class="authors"> <span class="author" itemprop="author">Abud, A. Abed</span> <span class="sep">; </span><span class="author" itemprop="author">Abi, B.</span> <span class="sep">; </span><span class="author" itemprop="author">Acciarri, R.</span> <span class="sep">; </span><span class="author" itemprop="author">Acero, M. A.</span> <span class="sep">; </span><span class="author" itemprop="author">Adames, M. R.</span> <span class="sep">; </span><span class="author" itemprop="author">Adamov, G.</span> <span class="sep">; </span><span class="author" itemprop="author">Adamowski, M.</span> <span class="sep">; </span><span class="author" itemprop="author">Adams, D.</span> <span class="sep">; </span><span class="author" itemprop="author">Adinolfi, M.</span> <span class="sep">; </span><span class="author" itemprop="author">Adriano, C.</span> <span class="sep">; </span><span class="author">et al</span></span> <span class="year">( <time itemprop="datePublished" datetime="2023-07-01">July 2023</time> , The European Physical Journal C) </span> </div> <div style="cursor: pointer;-webkit-line-clamp: 5;" class="abstract" itemprop="description"> Abstract The Pandora Software Development Kit and algorithm libraries provide pattern-recognition logic essential to the reconstruction of particle interactions in liquid argon time projection chamber detectors. Pandora is the primary event reconstruction software used at ProtoDUNE-SP, a prototype for the Deep Underground Neutrino Experiment far detector. ProtoDUNE-SP, located at CERN, is exposed to a charged-particle test beam. This paper gives an overview of the Pandora reconstruction algorithms and how they have been tailored for use at ProtoDUNE-SP. In complex events with numerous cosmic-ray and beam background particles, the simulated reconstruction and identification efficiency for triggered test-beam particles is above 80% for the majority of particle type and beam momentum combinations. Specifically, simulated 1 GeV/ c charged pions and protons are correctly reconstructed and identified with efficiencies of 86.1 $$\pm 0.6$$ ± 0.6 % and 84.1 $$\pm 0.6$$ ± 0.6 %, respectively. The efficiencies measured for test-beam data are shown to be within 5% of those predicted by the simulation. </div> <a href='#' class='show open-abstract' style='margin-left:10px;'>more »</a> <a href='#' class='hide close-abstract' style='margin-left:10px;'>« less</a> <div class="actions" style="padding-left:10px;"> <span class="reader-count"> <a class="misc external-link" href="https://doi.org/10.1140/epjc/s10052-023-11733-2" target="_blank" title="Link to document DOI" data-ostiid="10439794"> Full Text Available <span class="fas fa-external-link-alt"></span> </a> </span> </div> </div><div class="clearfix"></div> </div> </li> <li> <div class="article item document" itemscope itemtype="http://schema.org/TechArticle"> <div class="item-info"> <div class="title"> <a href="https://par.nsf.gov/biblio/10432025-impact-cross-section-uncertainties-supernova-neutrino-spectral-parameter-fitting-deep-underground-neutrino-experiment" itemprop="url"> <span class='span-link' itemprop="name">Impact of cross-section uncertainties on supernova neutrino spectral parameter fitting in the Deep Underground Neutrino Experiment</span> </a> </div> <div> <strong> <a class="misc external-link" href="https://doi.org/10.1103/PhysRevD.107.112012" target="_blank" title="Link to document DOI">https://doi.org/10.1103/PhysRevD.107.112012  <span class="fas fa-external-link-alt"></span></a> </strong> </div> <div class="metadata"> <span class="authors"> <span class="author" itemprop="author">Abed Abud, A.</span> <span class="sep">; </span><span class="author" itemprop="author">Abi, B.</span> <span class="sep">; </span><span class="author" itemprop="author">Acciarri, R.</span> <span class="sep">; </span><span class="author" itemprop="author">Acero, M. A.</span> <span class="sep">; </span><span class="author" itemprop="author">Adames, M. R.</span> <span class="sep">; </span><span class="author" itemprop="author">Adamov, G.</span> <span class="sep">; </span><span class="author" itemprop="author">Adamowski, M.</span> <span class="sep">; </span><span class="author" itemprop="author">Adams, D.</span> <span class="sep">; </span><span class="author" itemprop="author">Adinolfi, M.</span> <span class="sep">; </span><span class="author" itemprop="author">Adriano, C.</span> <span class="sep">; </span><span class="author">et al</span></span> <span class="year">( <time itemprop="datePublished" datetime="2023-06-01">June 2023</time> , Physical Review D) </span> </div> <div class="actions" style="padding-left:10px;"> <span class="reader-count"> <a class="misc external-link" href="https://doi.org/10.1103/PhysRevD.107.112012" target="_blank" title="Link to document DOI" data-ostiid="10432025"> Full Text Available <span class="fas fa-external-link-alt"></span> </a> </span> </div> </div><div class="clearfix"></div> </div> </li> <li> <div class="article item document" itemscope itemtype="http://schema.org/TechArticle"> <div class="item-info"> <div class="title"> <a href="https://par.nsf.gov/biblio/10422559-identification-reconstruction-low-energy-electrons-protodune-sp-detector" itemprop="url"> <span class='span-link' itemprop="name">Identification and reconstruction of low-energy electrons in the ProtoDUNE-SP detector</span> </a> </div> <div> <strong> <a class="misc external-link" href="https://doi.org/10.1103/PhysRevD.107.092012" target="_blank" title="Link to document DOI">https://doi.org/10.1103/PhysRevD.107.092012  <span class="fas fa-external-link-alt"></span></a> </strong> </div> <div class="metadata"> <span class="authors"> <span class="author" itemprop="author">Abud, A. Abed</span> <span class="sep">; </span><span class="author" itemprop="author">Abi, B.</span> <span class="sep">; </span><span class="author" itemprop="author">Acciarri, R.</span> <span class="sep">; </span><span class="author" itemprop="author">Acero, M. A.</span> <span class="sep">; </span><span class="author" itemprop="author">Adames, M. R.</span> <span class="sep">; </span><span class="author" itemprop="author">Adamov, G.</span> <span class="sep">; </span><span class="author" itemprop="author">Adamowski, M.</span> <span class="sep">; </span><span class="author" itemprop="author">Adams, D.</span> <span class="sep">; </span><span class="author" itemprop="author">Adinolfi, M.</span> <span class="sep">; </span><span class="author" itemprop="author">Adriano, C.</span> <span class="sep">; </span><span class="author">et al</span></span> <span class="year">( <time itemprop="datePublished" datetime="2023-05-01">May 2023</time> , Physical Review D) </span> </div> <div class="actions" style="padding-left:10px;"> <span class="reader-count"> <a class="misc external-link" href="https://doi.org/10.1103/PhysRevD.107.092012" target="_blank" title="Link to document DOI" data-ostiid="10422559"> Full Text Available <span class="fas fa-external-link-alt"></span> </a> </span> </div> </div><div class="clearfix"></div> </div> </li> <li> <div class="article item document" itemscope itemtype="http://schema.org/TechArticle"> <div class="item-info"> <div class="title"> <a href="https://par.nsf.gov/biblio/10444875-constraints-higgs-boson-self-coupling-from-single-double-higgs-production-atlas-detector-using-pp-collisions-tev" itemprop="url"> <span class='span-link' itemprop="name">Constraints on the Higgs boson self-coupling from single- and double-Higgs production with the ATLAS detector using pp collisions at s=13 TeV</span> </a> </div> <div> <strong> <a class="misc external-link" href="https://doi.org/10.1016/j.physletb.2023.137745" target="_blank" title="Link to document DOI">https://doi.org/10.1016/j.physletb.2023.137745  <span class="fas fa-external-link-alt"></span></a> </strong> </div> <div class="metadata"> <span class="authors"> <span class="author" itemprop="author">Aad, G.</span> <span class="sep">; </span><span class="author" itemprop="author">Abbott, B.</span> <span class="sep">; </span><span class="author" itemprop="author">Abbott, D.C.</span> <span class="sep">; </span><span class="author" itemprop="author">Abeling, K.</span> <span class="sep">; </span><span class="author" itemprop="author">Abidi, S.H.</span> <span class="sep">; </span><span class="author" itemprop="author">Aboulhorma, A.</span> <span class="sep">; </span><span class="author" itemprop="author">Abramowicz, H.</span> <span class="sep">; </span><span class="author" itemprop="author">Abreu, H.</span> <span class="sep">; </span><span class="author" itemprop="author">Abulaiti, Y.</span> <span class="sep">; </span><span class="author" itemprop="author">Abusleme Hoffman, A.C.</span> <span class="sep">; </span><span class="author">et al</span></span> <span class="year">( <time itemprop="datePublished" datetime="2023-08-01">August 2023</time> , Physics Letters B) </span> </div> <div class="actions" style="padding-left:10px;"> <span class="reader-count"> <a class="misc external-link" href="https://doi.org/10.1016/j.physletb.2023.137745" target="_blank" title="Link to document DOI" data-ostiid="10444875"> Full Text Available <span class="fas fa-external-link-alt"></span> </a> </span> </div> </div><div class="clearfix"></div> </div> </li> <li> <div class="article item document" itemscope itemtype="http://schema.org/TechArticle"> <div class="item-info"> <div class="title"> <a href="https://par.nsf.gov/biblio/10416547-highly-parallelized-simulation-pixelated-lartpc-gpu" itemprop="url"> <span class='span-link' itemprop="name">Highly-parallelized simulation of a pixelated LArTPC on a GPU</span> </a> </div> <div> <strong> <a class="misc external-link" href="https://doi.org/10.1088/1748-0221/18/04/P04034" target="_blank" title="Link to document DOI">https://doi.org/10.1088/1748-0221/18/04/P04034  <span class="fas fa-external-link-alt"></span></a> </strong> </div> <div class="metadata"> <span class="authors"> <span class="author" itemprop="author">Abed Abud, A.</span> <span class="sep">; </span><span class="author" itemprop="author">Abi, B.</span> <span class="sep">; </span><span class="author" itemprop="author">Acciarri, R.</span> <span class="sep">; </span><span class="author" itemprop="author">Acero, M.A.</span> <span class="sep">; </span><span class="author" itemprop="author">Adames, M.R.</span> <span class="sep">; </span><span class="author" itemprop="author">Adamov, G.</span> <span class="sep">; </span><span class="author" itemprop="author">Adamowski, M.</span> <span class="sep">; </span><span class="author" itemprop="author">Adams, D.</span> <span class="sep">; </span><span class="author" itemprop="author">Adinolfi, M.</span> <span class="sep">; </span><span class="author" itemprop="author">Adriano, C.</span> <span class="sep">; </span><span class="author">et al</span></span> <span class="year">( <time itemprop="datePublished" datetime="2023-04-01">April 2023</time> , Journal of Instrumentation) </span> </div> <div style="cursor: pointer;-webkit-line-clamp: 5;" class="abstract" itemprop="description"> Abstract The rapid development of general-purpose computing on graphics processing units (GPGPU) is allowing the implementation of highly-parallelized Monte Carlo simulation chains for particle physics experiments. This technique is particularly suitable for the simulation of a pixelated charge readout for time projection chambers, given the large number of channels that this technology employs. Here we present the first implementation of a full microphysical simulator of a liquid argon time projection chamber (LArTPC) equipped with light readout and pixelated charge readout, developed for the DUNE Near Detector. The software is implemented with an end-to-end set of GPU-optimized algorithms. The algorithms have been written in Python and translated into CUDA kernels using Numba, a just-in-time compiler for a subset of Python and NumPy instructions. The GPU implementation achieves a speed up of four orders of magnitude compared with the equivalent CPU version. The simulation of the current induced on 10^3 pixels takes around 1 ms on the GPU, compared with approximately 10 s on the CPU. The results of the simulation are compared against data from a pixel-readout LArTPC prototype. </div> <a href='#' class='show open-abstract' style='margin-left:10px;'>more »</a> <a href='#' class='hide close-abstract' style='margin-left:10px;'>« less</a> <div class="actions" style="padding-left:10px;"> <span class="reader-count"> <a class="misc external-link" href="https://doi.org/10.1088/1748-0221/18/04/P04034" target="_blank" title="Link to document DOI" data-ostiid="10416547"> Full Text Available <span class="fas fa-external-link-alt"></span> </a> </span> </div> </div><div class="clearfix"></div> </div> </li> <li> <div class="article item document" itemscope itemtype="http://schema.org/TechArticle"> <div class="item-info"> <div class="title"> <a href="https://par.nsf.gov/biblio/10440727-search-heavy-higgs-bosons-decaying-vector-bosons-same-sign-two-lepton-final-states-pp-collisions-sqrt-tev-atlas-detector" itemprop="url"> <span class='span-link' itemprop="name">A search for heavy Higgs bosons decaying into vector bosons in same-sign two-lepton final states in pp collisions at $$ \sqrt{s} $$ = 13 TeV with the ATLAS detector</span> </a> </div> <div> <strong> <a class="misc external-link" href="https://doi.org/10.1007/JHEP07(2023)200" target="_blank" title="Link to document DOI">https://doi.org/10.1007/JHEP07(2023)200  <span class="fas fa-external-link-alt"></span></a> </strong> </div> <div class="metadata"> <span class="authors"> <span class="author" itemprop="author">Aad, G.</span> <span class="sep">; </span><span class="author" itemprop="author">Abbott, B.</span> <span class="sep">; </span><span class="author" itemprop="author">Abbott, D. C.</span> <span class="sep">; </span><span class="author" itemprop="author">Abeling, K.</span> <span class="sep">; </span><span class="author" itemprop="author">Abidi, S. H.</span> <span class="sep">; </span><span class="author" itemprop="author">Aboulhorma, A.</span> <span class="sep">; </span><span class="author" itemprop="author">Abramowicz, H.</span> <span class="sep">; </span><span class="author" itemprop="author">Abreu, H.</span> <span class="sep">; </span><span class="author" itemprop="author">Abulaiti, Y.</span> <span class="sep">; </span><span class="author" itemprop="author">Abusleme Hoffman, A. C.</span> <span class="sep">; </span><span class="author">et al</span></span> <span class="year">( <time itemprop="datePublished" datetime="2023-07-01">July 2023</time> , Journal of High Energy Physics) </span> </div> <div style="cursor: pointer;-webkit-line-clamp: 5;" class="abstract" itemprop="description"> A bstract A search for heavy Higgs bosons produced in association with a vector boson and decaying into a pair of vector bosons is performed in final states with two leptons (electrons or muons) of the same electric charge, missing transverse momentum and jets. A data sample of proton–proton collisions at a centre-of-mass energy of 13 TeV recorded with the ATLAS detector at the Large Hadron Collider between 2015 and 2018 is used. The data correspond to a total integrated luminosity of 139 fb − 1 . The observed data are in agreement with Standard Model background expectations. The results are interpreted using higher-dimensional operators in an effective field theory. Upper limits on the production cross-section are calculated at 95% confidence level as a function of the heavy Higgs boson’s mass and coupling strengths to vector bosons. Limits are set in the Higgs boson mass range from 300 to 1500 GeV, and depend on the assumed couplings. The highest excluded mass for a heavy Higgs boson with the coupling combinations explored is 900 GeV. Limits on coupling strengths are also provided. </div> <a href='#' class='show open-abstract' style='margin-left:10px;'>more »</a> <a href='#' class='hide close-abstract' style='margin-left:10px;'>« less</a> <div class="actions" style="padding-left:10px;"> <span class="reader-count"> <a class="misc external-link" href="https://doi.org/10.1007/JHEP07(2023)200" target="_blank" title="Link to document DOI" data-ostiid="10440727"> Full Text Available <span class="fas fa-external-link-alt"></span> </a> </span> </div> </div><div class="clearfix"></div> </div> </li> <li> <div class="article item document" itemscope itemtype="http://schema.org/TechArticle"> <div class="item-info"> <div class="title"> <a href="https://par.nsf.gov/biblio/10436026-measurement-cp-properties-higgs-boson-interactions-tau-leptons-atlas-detector" itemprop="url"> <span class='span-link' itemprop="name">Measurement of the CP properties of Higgs boson interactions with $$\tau $$-leptons with the ATLAS detector</span> </a> </div> <div> <strong> <a class="misc external-link" href="https://doi.org/10.1140/epjc/s10052-023-11583-y" target="_blank" title="Link to document DOI">https://doi.org/10.1140/epjc/s10052-023-11583-y  <span class="fas fa-external-link-alt"></span></a> </strong> </div> <div class="metadata"> <span class="authors"> <span class="author" itemprop="author">Aad, G.</span> <span class="sep">; </span><span class="author" itemprop="author">Abbott, B.</span> <span class="sep">; </span><span class="author" itemprop="author">Abbott, D. C.</span> <span class="sep">; </span><span class="author" itemprop="author">Abeling, K.</span> <span class="sep">; </span><span class="author" itemprop="author">Abidi, S. H.</span> <span class="sep">; </span><span class="author" itemprop="author">Aboulhorma, A.</span> <span class="sep">; </span><span class="author" itemprop="author">Abramowicz, H.</span> <span class="sep">; </span><span class="author" itemprop="author">Abreu, H.</span> <span class="sep">; </span><span class="author" itemprop="author">Abulaiti, Y.</span> <span class="sep">; </span><span class="author" itemprop="author">Hoffman, A. C.</span> <span class="sep">; </span><span class="author">et al</span></span> <span class="year">( <time itemprop="datePublished" datetime="2023-07-01">July 2023</time> , The European Physical Journal C) </span> </div> <div style="cursor: pointer;-webkit-line-clamp: 5;" class="abstract" itemprop="description"> Abstract A study of the charge conjugation and parity ( $$\textit{CP}$$ CP ) properties of the interaction between the Higgs boson and $$\tau $$ τ -leptons is presented. The study is based on a measurement of $$\textit{CP}$$ CP -sensitive angular observables defined by the visible decay products of $$\tau $$ τ -leptons produced in Higgs boson decays. The analysis uses 139 fb $$^{-1}$$ - 1 of proton–proton collision data recorded at a centre-of-mass energy of $$\sqrt{s}= 13$$ s = 13  TeV with the ATLAS detector at the Large Hadron Collider. Contributions from $$\textit{CP}$$ CP -violating interactions between the Higgs boson and $$\tau $$ τ -leptons are described by a single mixing angle parameter $$\phi _{\tau }$$ ϕ τ in the generalised Yukawa interaction. Without constraining the $$H\rightarrow \tau \tau $$ H → τ τ signal strength to its expected value under the Standard Model hypothesis, the mixing angle $$\phi _{\tau }$$ ϕ τ is measured to be $$9^{\circ } \pm 16^{\circ }$$ 9 ∘ ± 16 ∘ , with an expected value of $$0^{\circ } \pm 28^{\circ }$$ 0 ∘ ± 28 ∘ at the 68% confidence level. The pure $$\textit{CP}$$ CP -odd hypothesis is disfavoured at a level of 3.4 standard deviations. The results are compatible with the predictions for the Higgs boson in the Standard Model. </div> <a href='#' class='show open-abstract' style='margin-left:10px;'>more »</a> <a href='#' class='hide close-abstract' style='margin-left:10px;'>« less</a> <div class="actions" style="padding-left:10px;"> <span class="reader-count"> <a class="misc external-link" href="https://doi.org/10.1140/epjc/s10052-023-11583-y" target="_blank" title="Link to document DOI" data-ostiid="10436026"> Full Text Available <span class="fas fa-external-link-alt"></span> </a> </span> </div> </div><div class="clearfix"></div> </div> </li> <li> <div class="article item document" itemscope itemtype="http://schema.org/TechArticle"> <div class="item-info"> <div class="title"> <a href="https://par.nsf.gov/biblio/10493247-measurement-properties-higgs-boson-production-sqrt-tev-channel-using-fb1-pp-collision-data-atlas-experiment" itemprop="url"> <span class='span-link' itemprop="name">Measurement of the properties of Higgs boson production at $$ \sqrt{s} $$ = 13 TeV in the H → γγ channel using 139 fb−1 of pp collision data with the ATLAS experiment</span> </a> </div> <div> <strong> <a class="misc external-link" href="https://doi.org/10.1007/JHEP07(2023)088" target="_blank" title="Link to document DOI">https://doi.org/10.1007/JHEP07(2023)088  <span class="fas fa-external-link-alt"></span></a> </strong> </div> <div class="metadata"> <span class="authors"> <span class="author" itemprop="author">Aad, G.</span> <span class="sep">; </span><span class="author" itemprop="author">Abbott, B.</span> <span class="sep">; </span><span class="author" itemprop="author">Abbott, D. C.</span> <span class="sep">; </span><span class="author" itemprop="author">Abeling, K.</span> <span class="sep">; </span><span class="author" itemprop="author">Abidi, S. H.</span> <span class="sep">; </span><span class="author" itemprop="author">Aboulhorma, A.</span> <span class="sep">; </span><span class="author" itemprop="author">Abramowicz, H.</span> <span class="sep">; </span><span class="author" itemprop="author">Abreu, H.</span> <span class="sep">; </span><span class="author" itemprop="author">Abulaiti, Y.</span> <span class="sep">; </span><span class="author" itemprop="author">Abusleme Hoffman, A. C.</span> <span class="sep">; </span><span class="author">et al</span></span> <span class="year">( <time itemprop="datePublished" datetime="2023-07-01">July 2023</time> , Journal of High Energy Physics) </span> </div> <div style="cursor: pointer;-webkit-line-clamp: 5;" class="abstract" itemprop="description"> <title>A<sc>bstract</sc>

    Measurements of Higgs boson production cross-sections are carried out in the diphoton decay channel using 139 fb1ofppcollision data at$$ \sqrt{s} $$s= 13 TeV collected by the ATLAS experiment at the LHC. The analysis is based on the definition of 101 distinct signal regions using machine-learning techniques. The inclusive Higgs boson signal strength in the diphoton channel is measured to be$$ {1.04}_{-0.09}^{+0.10} $$1.040.09+0.10. Cross-sections for gluon-gluon fusion, vector-boson fusion, associated production with aWorZboson, and top associated production processes are reported. An upper limit of 10 times the Standard Model prediction is set for the associated production process of a Higgs boson with a single top quark, which has a unique sensitivity to the sign of the top quark Yukawa coupling. Higgs boson production is further characterized through measurements of Simplified Template Cross-Sections (STXS). In total, cross-sections of 28 STXS regions are measured. The measured STXS cross-sections are compatible with their Standard Model predictions, with ap-value of 93%. The measurements are also used to set constraints on Higgs boson coupling strengths, as well as on new interactions beyond the Standard Model in an effective field theory approach. No significant deviations from the Standard Model predictions are observed in these measurements, which provide significant sensitivity improvements compared to the previous ATLAS results.

     
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