ATLAS Preprints

2022-05-23
13:54
 BSM H searches and rare H decay searches at CMS and ATLAS / Cooperstein, Stephane B (UC, San Diego) /ATLAS and CMS Collaborations Searches for rare Higgs boson decays and extensions of the Higgs sector beyond the standard model are key to probing the dynamics of electroweak symmetry breaking. With the large LHC Run-2 dataset, considerable progress has been made in probing the largely unexplored Higgs boson interactions with the lighter fermions, as well as in searching for signs of new physics in the Higgs sector with mass scales ranging from 100 MeV to several TeV. [...] CMS-CR-2022-064.- Geneva : CERN, 2022 - 7 p. Fulltext: PDF; In : 56th Rencontres de Moriond on Electroweak Interactions and Unified Theories, La Thuile, It, 12 - 19 Mar 2022

2022-05-23
13:54
 Standard Model multibosons at CMS and ATLAS / Massironi, Andrea (INFN, Milan Bicocca) /ATLAS and CMS Collaborations Multiboson measurements in ATLAS and CMS reached a high level of precision with LHC Run 1 and Run 2 data taking. In this report the most recent results of di-boson (WW, WZ, ZZ, V$\gamma$), tri-boson (WWW, WWZ, WZZ, ZZZ), and rare production mechanisms (electroweak and photon-induced) will be shown. [...] CMS-CR-2022-061.- Geneva : CERN, 2022 - 5 p. Fulltext: PDF; In : 56th Rencontres de Moriond on QCD and High Energy Interactions, La Thuile, It, 19 - 26 Mar 2022

2022-05-23
13:54
 Dark matter searches at CMS and ATLAS / Perez Adan, Danyer (DESY) /ATLAS and CMS Collaborations A glimpse into the most recent searches for Dark Matter at the LHC performed by the ATLAS and CMS collaborations is presented. The results covered in this document are all based on Run-2 proton-proton collision data recorded at $\sqrt{s}=13\text{ TeV}$ and corresponding to an integrated luminosity of just under 140 fb\textsuperscript{-1}.. CMS-CR-2022-059.- Geneva : CERN, 2022 - 7 p. Fulltext: PDF; In : 56th Rencontres de Moriond on Electroweak Interactions and Unified Theories, La Thuile, It, 12 - 19 Mar 2022

2022-05-23
10:36
 Observation of single top-quark + photon production with the ATLAS detector / Alhroob, Muhammad (Oklahoma U.) These proceedings present the first observation of single top-quark production associated with a photon using the full Run2 proton-proton dataset collected by the ATLAS experiment at the LHC.. arXiv:2205.03145. - 4 p. Fulltext

2022-05-19
09:00
 Highlights from Long-Lived Particle Searches at ATLAS / Gonski, Julia (Nevis Labs, Columbia U.) The latest results of long-lived particle (LLP) searches from the ATLAS Experiment at the Large Hadron Collider are presented. [...] arXiv:2205.07669. - Fulltext

2022-05-12
15:14
 Search for heavy, long-lived, charged particles with large ionisation energy loss in $pp$ collisions at $\sqrt{s} = 13~\text{TeV}$ using the ATLAS experiment and the full Run 2 dataset This paper presents a search for hypothetical massive, charged, long-lived particles with the ATLAS detector at the LHC using an integrated luminosity of 139 $\mathrm{fb^{-1}}$ of proton-proton collisions at $\sqrt{s}=13$ TeV. [...] arXiv:2205.06013 ; CERN-EP-2022-029. - 2022. - 38 p. Fulltext - Previous draft version - Fulltext

2022-05-09
12:46
 Di-Higgs searches at the LHC / Chernyavskaya, Nadezda (CERN) /ATLAS and CMS Collaborations An overview of the recent searches for Higgs boson pair production at the LHC was presented. The searches were based on approximately 140 fb$^{-1}$ of data collected by the ATLAS and CMS experiments in proton-proton collisions at $\sqrt{s}$ = 13 TeV. [...] CMS-CR-2021-046.- Geneva : CERN, 2021 - 7 p. Fulltext: PDF; In : 55th Rencontres de Moriond on Electroweak Interactions and Unified Theories, Online, Online, 21 - 27 Mar 2021

2022-05-09
12:45
 Top quark production cross sections and rare processes at CMS and ATLAS / Saggio, Alessia (DESY) /ATLAS and CMS Collaborations Inclusive and differential measurements of cross sections as well as searches for rare processes in the top quark sector provide an important test of the standard model (SM) and a powerful probe of physics beyond the SM (BSM). Recent results on inclusive and differential measurements of $\mathrm{t}\bar{\mathrm{t}}$, tZq, and $\mathrm{t}\bar{\mathrm{t}}+\mathrm{X}$ processes are reported, together with searches for flavour changing neutral currents (FCNCs) and charged lepton flavour violation (CLFV) in top quark processes, and for production of four top quarks. All results are obtained in proton-proton collision data, recorded by the ATLAS and CMS experiments at the CERN LHC from 2015 to 2018 at $\sqrt{s}=13$~TeV.} CMS-CR-2022-054.- Geneva : CERN, 2022 - 7 p. Fulltext: PDF; In : 56th Rencontres de Moriond on Electroweak Interactions and Unified Theories, La Thuile, It, 12 - 19 Mar 2022

2022-05-09
12:39
 Higgs cross-sections and properties at CMS and ATLAS / De Wit, Adinda Maite (Zurich U.) /ATLAS and CMS Collaborations Measurements of Higgs boson production cross sections and properties, by the CMS and ATLAS experiments at the CERN LHC are presented. The focus is on recent results of simplified template cross section measurements, fiducial differential cross section measurements, and analyses probing the CP structure of the top quark Yukawa coupling. [...] CMS-CR-2022-052.- Geneva : CERN, 2022 - 5 p. Fulltext: PDF; In : 56th Rencontres de Moriond on QCD and High Energy Interactions, La Thuile, It, 19 - 26 Mar 2022

2022-05-06
14:55
 Production of $\varUpsilon(\textrm{nS})$ mesons in Pb+Pb and $pp$ collisions at 5.02 TeV A measurement of the production of vector bottomonium states, $\varUpsilon(\textrm{1S})$, $\varUpsilon(\textrm{2S})$, and $\varUpsilon(\textrm{3S})$, in Pb+Pb and $pp$ collisions at a center-of-mass energy per nucleon pair of 5.02 TeV is presented. [...] arXiv:2205.03042 ; CERN-EP-2022-045. - 2022. - 21 p. Fulltext - Previous draft version - Fulltext