# ATLAS

 2019-09-0411:55 [PUBDB-2019-03216] Report/Journal Article et al Measurement of the four-lepton invariant mass spectrum in 13 TeV proton-proton collisions with the ATLAS detector [arXiv:1902.05892; CERN-EP-2018-318] Journal of high energy physics 1904(04), 048 (2019) [10.1007/JHEP04(2019)048]   A measurement of the four-lepton invariant mass spectrum is made with the ATLAS detector, using an integrated luminosity of 36.1 fb$^{−1}$ of proton-proton collisions at $\sqrt{s}$ = 13 TeV delivered by the Large Hadron Collider. The differential cross-section is measured for events containing two same-flavour opposite-sign lepton pairs. [...] OpenAccess: Aaboud2019_Article_MeasurementOfTheFour-leptonInv - PDF PDF (PDFA); Measurement of the four-lepton invariant massspectrum in 13 TeV proton–proton collisions withthe ATLAS detector - PDF PDF (PDFA); 2019-08-2110:48 [PUBDB-2019-03051] Report/Journal Article et al Search for pair production of Higgs bosons in the $b\bar{b}b\bar{b}$ final state using proton-proton collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector [CERN-EP-2018-029; arXiv:1804.06174] Journal of high energy physics 1901(01), 030 (2019) [10.1007/JHEP01(2019)030]   A search for Higgs boson pair production in the $b\overline{b}b\overline{b}$ final state is carried out with up to 36.1 fb$^{−1}$ of LHC proton-proton collision data collected at $\sqrt{s}=13$ TeV with the ATLAS detector in 2015 and 2016. Three benchmark signals are studied: a spin-2 graviton decaying into a Higgs boson pair, a scalar resonance decaying into a Higgs boson pair, and Standard Model non-resonant Higgs boson pair production. [...] OpenAccess: Search for pair production of Higgs - PDF PDF (PDFA); Aaboud2019_Article_SearchForPairProductionOfHiggs - PDF PDF (PDFA); 2019-08-1912:30 [PUBDB-2019-03034] Report/Journal Article et al Search for light resonances decaying to boosted quark pairs and produced in association with a photon or a jet in proton-proton collisions at $\sqrt{s}=13$ TeV with the ATLAS detector [arXiv:1801.08769; CERN-EP-2017-280] Physics letters / B 788, 316 - 335 (2019) [10.1016/j.physletb.2018.09.062]   This Letter presents a search for new light resonances decaying to pairs of quarks and produced in association with a high-$p_T$ photon or jet. The dataset consists of proton–proton collisions with an integrated luminosity of 36.1 fb$^{−1}$ at a centre-of-mass energy of $\sqrt{s}=13$ TeV recorded by the ATLAS detector at the Large Hadron Collider. [...] OpenAccess: 1801.08769 - PDF PDF (PDFA); 1-s2.0-S037026931830830X-main - PDF PDF (PDFA); 2019-08-1911:47 [PUBDB-2019-03033] Report/Journal Article et al Search for scalar resonances decaying into $\mu^+\mu^-$ in events with and without $b$-tagged jets produced in proton-proton collisions at $\sqrt{s} =$ 13 TeV with the ATLAS detector [arXiv:1901.08144; CERN-EP-2018-300] Journal of high energy physics 1907(07), 117 (2019) [10.1007/JHEP07(2019)117]   A search for a narrow scalar resonance decaying into an opposite-sign muon pair produced in events with and without b-tagged jets is presented in this paper. The search uses 36.1 fb$^{−1}$ of $\sqrt{s} =$ 13 TeV proton-proton collision data recorded by the ATLAS experiment at the LHC. [...] OpenAccess: Aaboud2019_Article_SearchForScalarResonancesDecay - PDF PDF (PDFA); 1901.08144 - PDF PDF (PDFA); 2019-08-1511:48 [PUBDB-2019-03016] Report/Journal Article et al Probing the photonic content of the proton using photon-induced dilepton production in p+Pb collisions at the LHC [arXiv:1901.06305; DESY-19-010] Physical review / D 99(11), 114008 (2019) [10.1103/PhysRevD.99.114008]   We propose a new experimental method to probe the photon parton distribution function inside the proton (photon PDF) at LHC energies. The method is based on the measurement of dilepton production from the $γp → ℓ^+ ℓ^- + X$ reaction in proton-lead collisions. [...] OpenAccess: PDF PDF (PDFA); 2019-07-2412:56 [PUBDB-2019-02805] Report/Journal Article et al Combinations of single-top-quark production cross-section measurements and $|f_{\rm LV}V_{tb}|$ determinations at $\sqrt{s}=7$ and 8 TeV with the ATLAS and CMS experiments [arXiv:1902.07158; CERN-EP-2019-005] Journal of high energy physics 1905(05), 088 (2019) [10.1007/JHEP05(2019)088]   This paper presents the combinations of single-top-quark production cross-section measurements by the ATLAS and CMS Collaborations, using data from LHC proton-proton collisions at $\sqrt{s}=7$ and 8 TeV corresponding to integrated luminosities of 1.17 to 5.1 fb$^{-1}$ at $\sqrt{s}=7$ TeV, and 12.2 to 20.3 fb$^{-1}$ at $\sqrt{s}=8$ TeV. These combinations are performed per centre-of-mass energy and for each production mode: $t$-channel, $tW$, and $s$-channel. [...] OpenAccess: PDF PDF (PDFA); 2019-07-2314:33 [PUBDB-2019-02781] Conference Presentation Pflitsch, S. Constraints of PDFs from LHC measurements QCD@LHC 2019, QCD@LHC 2019, Buffalo, NYBuffalo, NY, United States, 15 Jul 2019 - 19 Jul 2019   OpenAccess: PDF PDF (PDFA); External link: Fulltext 2019-07-2314:22 [PUBDB-2019-02780] Conference Presentation Walsh, R. Searches for Beyond-the-Standard Model (BSM) Higgs Bosons at the LHC QCD@LHC 2019, 15-19 Jul 2019, QCD@LHC 2019, Buffalo, NYBuffalo, NY, United States, 15 Jul 2019 - 19 Jul 2019   OpenAccess: PDF; External link: Fulltext 2019-07-2314:14 [PUBDB-2019-02779] Poster Defranchis, M. Probing QCD using top quark pair production at $\sqrt{s} =$ 13 TeV in CMS European Physical Society Conference on High Energy Physics, EPS-HEP2019, GhentGhent, Belgium, 10 Jul 2019 - 17 Jul 2019   A measurement of the inclusive top quark-antiquark pair production cross section in proton proton collisions at a centre-of-mass energy of 13 TeV is used by the CMS experiment, together with the theoretical prediction at next-to-next-to-leading order, to determine the top quark mass and to extract a value of the strong coupling constant with different sets of parton distribution functions. Dilepton events are selected and the cross section is measured from a likelihood fit to the final state distributions. [...] OpenAccess: PDF PDF (PDFA); External link: Fulltext 2019-07-2314:10 [PUBDB-2019-02778] Conference Presentation CMS Collaboration Searches for Supersymmetry European Physical Society Conference on High Energy Physics, EPS-HEP2019, GhentGhent, Belgium, 10 Jul 2019 - 17 Jul 2019   OpenAccess: PDF PDF (PDFA); External link: Fulltext