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  1. Article

    Open Access

    Search for central exclusive production of top quark pairs in proton-proton collisions at \( \sqrt{s} \) = 13 TeV with tagged protons

    A search for the central exclusive production of top quark-antiquark pairs ( t t ...

    A. Tumasyan, W. Adam, J. W. Andrejkovic, T. Bergauer in Journal of High Energy Physics (2024)

  2. Article

    Open Access

    Search for heavy neutral leptons in final states with electrons, muons, and hadronically decaying tau leptons in proton-proton collisions at \( \sqrt{s} \) = 13 TeV

    A search for heavy neutral leptons (HNLs) of Majorana or Dirac type using proton-proton collision data at ...

    A. A. Hayrapetyan, A. Tumasyan, W. Adam in Journal of High Energy Physics (2024)

  3. Article

    Open Access

    Search for the decay of the Higgs boson to a pair of light pseudoscalar bosons in the final state with four bottom quarks in proton-proton collisions at \( \sqrt{\textrm{s}} \) = 13 TeV

    A search is presented for the decay of the 125 GeV Higgs boson (H) to a pair of new light pseudoscalar bosons (a), followed by the prompt decay of each a boson to a bottom quark-antiquark pair,

    A. Hayrapetyan, A. Tumasyan, W. Adam, J. W. Andrejkovic in Journal of High Energy Physics (2024)

  4. Article

    Open Access

    Measurement of t-channel production of single top quarks and antiquarks in pp collisions at 13 TeV using the full ATLAS Run 2 data sample

    The production of single top quarks and top antiquarks via the t-channel exchange of a virtual W boson is measured in proton-proton collisions at a centre-of-mass energy of 13 TeV at the LHC using 140 fb1 of ATL...

    G. Aad, B. Abbott, K. Abeling, N. J. Abicht, S. H. Abidi in Journal of High Energy Physics (2024)

  5. Article

    Open Access

    Search for a third-generation leptoquark coupled to a τ lepton and a b quark through single, pair, and nonresonant production in proton-proton collisions at \( \sqrt{s} \) = 13 TeV

    A search is presented for a third-generation leptoquark (LQ) coupled exclusively to a τ lepton and a b quark. The search is based on proton-proton collision data at a center-of-mass energy of 13 TeV recorded w...

    A. Hayrapetyan, A. Tumasyan, W. Adam, J. W. Andrejkovic in Journal of High Energy Physics (2024)

  6. Article

    Open Access

    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

    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 to...

    G. Aad, B. Abbott, K. Abeling, N. J. Abicht, S. H. Abidi in Journal of High Energy Physics (2024)

  7. Article

    Open Access

    Measurement of associated J/ψ-ψ(2S) production cross-section in pp collisions at \( \sqrt{s} \) = 13 TeV

    The cross-section of associated J/ψ-ψ(2S) production in proton-proton collisions at a centre-of-mass energy of ...

    R. Aaij, A. S. W. Abdelmotteleb, C. Abellan Beteta in Journal of High Energy Physics (2024)

  8. Article

    Open Access

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

    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 ex...

    G. Aad, B. Abbott, K. Abeling, N. J. Abicht, S. H. Abidi in Journal of High Energy Physics (2024)

  9. Article

    Open Access

    Measurement of the total and differential cross-sections of \( t\overline{t}W \) production in pp collisions at \( \sqrt{s} \) = 13 TeV with the ATLAS detector

    Measurements of inclusive and differential production cross-sections of a top-quark-top-antiquark pair in association with a W boson ( ...

    G. Aad, B. Abbott, K. Abeling, N. J. Abicht, S. H. Abidi in Journal of High Energy Physics (2024)

  10. Article

    Open Access

    Measurement of the primary Lund jet plane density in proton-proton collisions at \( \sqrt{\textrm{s}} \) = 13 TeV

    A measurement is presented of the primary Lund jet plane (LJP) density in inclusive jet production in proton-proton collisions. The analysis uses 138 fb1 of data collected by the CMS experiment at ...

    A. Hayrapetyan, A. Tumasyan, W. Adam, J. W. Andrejkovic in Journal of High Energy Physics (2024)

  11. Article

    Open Access

    Test of CP-invariance of the Higgs boson in vector-boson fusion production and in its decay into four leptons

    A search for CP violation in the decay kinematics and vector-boson fusion production of the Higgs boson is performed in the HZZ* → 4 ( = e, μ) decay channel. The results are based on proton-proton collision ...

    G. Aad, B. Abbott, K. Abeling, N. J. Abicht, S. H. Abidi in Journal of High Energy Physics (2024)

  12. Article

    Open Access

    Inclusive and differential cross section measurements of \( \textrm{t}\overline{\textrm{t}}\textrm{b}\overline{\textrm{b}} \) production in the lepton+jets channel at \( \sqrt{s} \) = 13 TeV

    Measurements of inclusive and normalized differential cross sections of the associated production of top quark-antiquark and bottom quark-antiquark pairs, ...

    A. Hayrapetyan, A. Tumasyan, W. Adam, J. W. Andrejkovic in Journal of High Energy Physics (2024)

  13. Article

    Open Access

    Search for W′ bosons decaying to a top and a bottom quark in leptonic final states in proton-proton collisions at \( \sqrt{s} \) = 13 TeV

    A search for W′ bosons decaying to a top and a bottom quark in final states including an electron or a muon is performed with the CMS detector at the LHC. The analyzed data correspond to an integrated luminosi...

    A. Hayrapetyan, A. Tumasyan, W. Adam, J. W. Andrejkovic in Journal of High Energy Physics (2024)

  14. Article

    Open Access

    Search for new phenomena with top-quark pairs and large missing transverse momentum using 140 fb1 of pp collision data at \( \sqrt{s} \) = 13 TeV with the ATLAS detector

    A search is conducted for new phenomena in events with a top quark pair and large missing transverse momentum, where the top quark pair is reconstructed in final states with one isolated electron or muon and m...

    G. Aad, E. Aakvaag, B. Abbott, K. Abeling, N. J. Abicht in Journal of High Energy Physics (2024)

  15. Article

    Open Access

    Search for dark matter particles in W+W events with transverse momentum imbalance in proton-proton collisions at \( \sqrt{s} \) = 13 TeV

    A search for dark matter particles is performed using events with a pair of W bosons and large missing transverse momentum. Candidate events are selected by requiring one or two leptons ( = electrons or muons). ...

    A. Hayrapetyan, A. Tumasyan, W. Adam, J. W. Andrejkovic in Journal of High Energy Physics (2024)

  16. Article

    Open Access

    Measurement of J/ψ-pair production in pp collisions at \( \sqrt{s} \) = 13 TeV and study of gluon transverse-momentum dependent PDFs

    The production cross-section of J/ψ pairs in proton-proton collisions at a centre-of-mass energy of s ...

    R. Aaij, A. S. W. Abdelmotteleb, C. Abellan Beteta in Journal of High Energy Physics (2024)

  17. Article

    Open Access

    Search for pair production of squarks or gluinos decaying via sleptons or weak bosons in final states with two same-sign or three leptons with the ATLAS detector

    A search for pair production of squarks or gluinos decaying via sleptons or weak bosons is reported. The search targets a final state with exactly two leptons with same-sign electric charge or at least three l...

    G. Aad, B. Abbott, K. Abeling, N. J. Abicht, S. H. Abidi in Journal of High Energy Physics (2024)

  18. Article

    Open Access

    Measurement of the Z boson production cross-section in pp collisions at \( \sqrt{s} \) = 5.02 TeV

    The first measurement of the Z boson production cross-section at centre-of-mass energy s ...

    R. Aaij, A. S. W. Abdelmotteleb, C. Abellan Beteta in Journal of High Energy Physics (2024)

  19. Article

    Open Access

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

    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 ...

    G. Aad, B. Abbott, K. Abeling, N. J. Abicht, S. H. Abidi in Journal of High Energy Physics (2024)

  20. Article

    Open Access

    Search for resonances in events with photon and jet final states in proton-proton collisions at \( \sqrt{s} \) = 13 TeV

    A search for resonances in events with the γ+jet final state has been performed using proton-proton collision data collected at ...

    A. Tumasyan, W. Adam, J. W. Andrejkovic, T. Bergauer in Journal of High Energy Physics (2023)

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