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CERN Document Server Sök i 1,065 journaler efter:  1 - 10nästaslut  gå till journal: Sökningen tog 0.98 sekunder. 
1.
Evidence for the charge asymmetry in $pp \rightarrow t\bar{t}$ production at $\sqrt{s}= 13$ TeV with the ATLAS detector / ATLAS Collaboration
Inclusive and differential measurements of the top-antitop ($t\bar{t}$) charge asymmetry $A_\text{C}^{t\bar{t}}$ and the leptonic asymmetry $A_\text{C}^{\ell\bar{\ell}}$ are presented in proton-proton collisions at $\sqrt{s} = 13$ TeV recorded by the ATLAS experiment at the CERN Large Hadron Collider. The measurement uses the complete Run 2 dataset, corresponding to an integrated luminosity of 139 fb$^{-1}$, combines data in the single-lepton and dilepton channels, and employs reconstruction techniques adapted to both the resolved and boosted topologies. [...]
arXiv:2208.12095; CERN-EP-2022-166.- Geneva : CERN, 2023-08-16 - 68 p. - Published in : JHEP 2308 (2023) 077 Fulltext: document - PDF; 2208.12095 - PDF; External link: Previous draft version
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2.
A time projection chamber with GEM-based readout / LCTPC Collaboration
For the International Large Detector concept at the planned International Linear Collider, the use of time projection chambers (TPC) with micro-pattern gas detector readout as the main tracking detector is investigated. In this paper, results from a prototype TPC, placed in a 1T solenoidal field and read out with three independent Gas Electron Multiplier (GEM) based readout modules, are reported. [...]
arXiv:1604.00935; DESY-16-059.- 2017-06-01 - 10 p. - Published in : Nucl. Instrum. Methods Phys. Res., A 856 (2017) 109-118 Fulltext: PDF;
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3.
Combination of inclusive top-quark pair production cross-section measurements using ATLAS and CMS data at $\sqrt{s}= 7$ and 8 TeV / ATLAS Collaboration
A combination of measurements of the inclusive top-quark pair production cross-section performed by ATLAS and CMS in proton-proton collisions at centre-of-mass energies of 7 and 8 TeV at the LHC is presented. The cross-sections are obtained using top-quark pair decays with an opposite-charge electron-muon pair in the final state and with data corresponding to an integrated luminosity of about 5 fb$^{-1}$ at $\sqrt{s}=7$ TeV and about 20 fb$^{-1}$ at $\sqrt{s}=8$ TeV for each experiment. [...]
arXiv:2205.13830; CERN-EP-2021-222; CMS-TOP-18-014; CERN-LPCC-2022-03.- 2023-07-27 - 59 p. - Published in : JHEP 2307 (2023) 213 Fulltext: PDF; Fulltext from Publisher: PDF; External link: Previous draft version
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4.
Observation of $WWW$ production in $pp$ collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector / ATLAS Collaboration
This Letter reports the observation of $WWW$ production and a measurement of its cross section using 139 $\text{fb}^{-1}$ of proton-proton collision data recorded at a center-of-mass energy of 13 TeV by the ATLAS detector at the Large Hadron Collider. Events with two same-sign leptons (electrons or muons) and at least two jets, as well as events with three leptons, are selected. [...]
arXiv:2201.13045; CERN-EP-2021-243.- Geneva : CERN, 2022-08-04 - 20 p. - Published in : Phys. Rev. Lett. 129 (2022) 061803 Fulltext: 2201.13045 - PDF; PhysRevLett.129.061803 - PDF; External links: Physics Synopsis; ScienceNews article
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5.
PCB development using HDI-technology and 3D-mounting of chips for MPGD readout / Jönsson, L. (ULUND) ; Lundberg, B. (ULUND) ; Mjörnmark, U. (ULUND) ; Oskarsson, A. (ULUND) ; Smirnova, O. (ULUND) ; Österman, L. (ULUND)
AIDA-2020-MS94.- Geneva : CERN, 2019 AIDA-2020, 94 Fulltext: PDF;
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6.
Operation and performance of the ATLAS Tile Calorimeter in Run 1 / ATLAS Collaboration
The Tile Calorimeter is the hadron calorimeter covering the central region of the ATLAS experiment at the Large Hadron Collider. Approximately 10000 photomultipliers collect light from scintillating tiles acting as the active material sandwiched between slabs of steel absorber. [...]
arXiv:1806.02129; CERN-EP-2018-062.- Geneva : CERN, 2018-11-30 - 69 p. - Published in : Eur. Phys. J. C 78 (2018) 987 Article from SCOAP3: scoap3-fulltext - PDF; scoap - PDF; Fulltext: PDF; External link: Figures, tables and other information
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7.
Prompt and non-prompt $J/\psi $ and $\psi (2\mathrm {S})$ suppression at high transverse momentum in $5.02~\mathrm {TeV}$ Pb+Pb collisions with the ATLAS experiment / ATLAS Collaboration
A measurement of $J/\psi$ and $\psi(2\mathrm{S})$ production is presented. It is based on a data sample from Pb+Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV and $pp$ collisions at $\sqrt{s}$ = 5.02 TeV recorded by the ATLAS detector at the LHC in 2015, corresponding to an integrated luminosity of $0.42\mathrm{nb}^{-1}$ and $25\mathrm{pb}^{-1}$ in Pb+Pb and $pp$, respectively. [...]
arXiv:1805.04077; CERN-EP-2018-049.- Geneva : CERN, 2018-09-21 - 39 p. - Published in : Eur. Phys. J. C 78 (2018) 762 Article from SCOAP3: PDF; Fulltext: PDF;
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8.
Search for flavour-changing neutral current top-quark decays $t\to qZ$ in proton-proton collisions at $\sqrt{s}=13$ TeV with the ATLAS detector / ATLAS Collaboration
A search for flavour-changing neutral-current processes in top-quark decays is presented. Data collected with the ATLAS detector from proton-proton collisions at the Large Hadron Collider at a centre-of-mass energy of $\sqrt{s}=13$ TeV, corresponding to an integrated luminosity of 36.1 fb$^{-1}$, are analysed. [...]
arXiv:1803.09923; CERN-EP-2018-018.- Geneva : CERN, 2018-07-31 - 42 p. - Published in : JHEP 07 (2018) 176 Article from SCOAP3: scoap3-fulltext - PDF; scoap - PDF; Fulltext: PDF; External link: Previous draft version
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9.
Search for electroweak production of supersymmetric particles in final states with two or three leptons at $\sqrt{s}=13$ TeV with the ATLAS detector / ATLAS Collaboration
A search for the electroweak production of charginos, neutralinos and sleptons decaying into final states involving two or three electrons or muons is presented. The analysis is based on 36.1 fb$^{-1}$ of $\sqrt{s}=13$ TeV proton--proton collisions recorded by the ATLAS detector at the Large Hadron Collider. [...]
arXiv:1803.02762; CERN-EP-2017-303.- Geneva : CERN, 2018-12-05 - 36 p. - Published in : Eur. Phys. J. C 78 (2018) 995 Article from SCOAP3: PDF; Fulltext: PDF; External link: Previous draft version
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10.
Performance of missing transverse momentum reconstruction with the ATLAS detector using proton-proton collisions at $\sqrt{s}$ = 13 TeV / ATLAS Collaboration
The performance of the missing transverse momentum (E$_{T}^{miss}$) reconstruction with the ATLAS detector is evaluated using data collected in proton-proton collisions at the LHC at a center-of-mass energy of 13 TeV in 2015. To reconstruct E$_{T}^{miss}$, fully calibrated electrons, muons, photons, hadronically decaying $\tau$-leptons, and jets reconstructed from calorimeter energy deposits and charged-particle tracks are used. [...]
arXiv:1802.08168; CERN-EP-2017-274.- Geneva : CERN, 2018-11-08 - 66 p. - Published in : Eur. Phys. J. C 78 (2018) 903 Article from SCOAP3: PDF; Fulltext: PDF; External link: Previous draft version
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