CERN Accelerating science

CERN Document Server 119 записей найдено  1 - 10следующийконец  перейти к записи: Поиск длился 1.18 секунд. 
1.
Search for high-mass resonances in final states with a $\tau$-lepton and missing transverse momentum with the ATLAS detector / ATLAS Collaboration
A search for high-mass resonances decaying into a tau-lepton and a neutrino using proton–proton collisions at a center-of-mass energy of $\sqrt{s}= 13$ TeV is presented. The full Run 2 data sample corresponding to an integrated luminosity of 139 fb$^{-1}$ recorded by the ATLAS experiment in the years 2015-2018 is analyzed. [...]
arXiv:2402.16576; CERN-EP-2023-298.- Geneva : CERN, 2024-06-01 - 28 p. - Published in : Phys. Rev. D 109 (2024) 112008 Fulltext: 2402.16576 - PDF; Publication - PDF; External link: Previous draft version
2.
Measurement of jet substructure in boosted $t\bar{t}$ events with the ATLAS detector using 140 fb$^{-1}$ of 13 TeV $pp$ collisions / ATLAS Collaboration
Measurements of the substructure of top-quark jets are presented, using 140 fb$^{-1}$ of 13 TeV $pp$ collision data recorded with the ATLAS detector at the LHC. Top-quark jets reconstructed with the anti-$k_{t}$ algorithm with a radius parameter $R=1.0$ are selected in top-quark pair ($t\bar{t}$) events where one top quark decays semileptonically and the other hadronically, or where both top quarks decay hadronically. [...]
arXiv:2312.03797; CERN-EP-2023-239.- Geneva : CERN, 2024-06-01 - 49 p. - Published in : Phys. Rev. D 109 (2024) 112016 Fulltext: 2312.03797 - PDF; Publication - PDF; External link: Previous draft version
3.
Study of $Z \to ll\gamma$ decays at $\sqrt s$ = 8 TeV with the ATLAS detector / ATLAS Collaboration
This paper presents a study of $Z \to ll\gamma$ decays with the ATLAS detector at the Large Hadron Collider. The analysis uses a proton-proton data sample corresponding to an integrated luminosity of 20.2 fb$^{-1}$ collected at a centre-of-mass energy $\sqrt{s}$ = 8 TeV. [...]
arXiv:2310.11574; CERN-EP-2022-265.- Geneva : CERN, 2024-02-26 - 43 p. - Published in : Eur. Phys. J. C 84 (2024) 195 Fulltext: 2310.11574 - PDF; document - PDF; External link: Previous draft version
4.
A precise measurement of the $Z$-boson double-differential transverse momentum and rapidity distributions in the full phase space of the decay leptons with the ATLAS experiment at $\sqrt s$ = 8 TeV / ATLAS Collaboration
This paper presents for the first time a precise measurement of the production properties of the $Z$ boson in the full phase space of the decay leptons. The measurement is obtained from proton-proton collision data collected by the ATLAS experiment in 2012 at $\sqrt s$ = 8 TeV at the LHC and corresponding to an integrated luminosity of 20.2 fb$^{-1}$. [...]
arXiv:2309.09318; CERN-EP-2023-171.- Geneva : CERN, 2024-03-25 - 58 p. - Published in : Eur. Phys. J. C 84 (2024) 315 Fulltext: 2309.09318 - PDF; document - PDF; External link: Previous draft version
5.
Search for singly produced vector-like top partners in multilepton final states with 139 $\mathrm{fb}^{-1}$ of $pp$ collision data at $\sqrt{s} = 13$ TeV with the ATLAS detector / ATLAS Collaboration
A search for the single production of a vector-like top partner ($T$) decaying into a $Z$ boson and a top quark is presented, using the full Run 2 dataset corresponding to 139 $\mathrm{fb}^{-1}$ of $pp$ collisions at $\sqrt{s} = 13$ TeV, collected in 2015-2018 with the ATLAS detector at the Large Hadron Collider. The targeted final state is characterized by the presence of a pair of electrons or muons with opposite-sign charges which form a $Z$-boson candidate, as well as by the presence of $b$-tagged jets and forward jets. [...]
arXiv:2307.07584; CERN-EP-2023-074.- Geneva : CERN, 2024-06-01 - 34 p. - Published in : Phys. Rev. D 109 (2024) 112012 Fulltext: PDF; External link: Previous draft version
6.
Search for New Phenomena in Two-Body Invariant Mass Distributions Using Unsupervised Machine Learning for Anomaly Detection at <math display="inline"><mrow><msqrt><mrow><mi>s</mi></mrow></msqrt><mo>=</mo><mn>13</mn><mtext> </mtext><mtext> </mtext><mi>TeV</mi></mrow></math> with the ATLAS Detector / ATLAS Collaboration
Searches for new resonances are performed using an unsupervised anomaly-detection technique. Events with at least one electron or muon are selected from 140 fb$^{-1}$ of $pp$ collisions at $\sqrt{s} = 13$ TeV recorded by ATLAS at the Large Hadron Collider. [...]
arXiv:2307.01612; CERN-EP-2023-112.- Geneva : CERN, 2024-02-20 - 23 p. - Published in : Phys. Rev. Lett. 132 (2024) 081801 Fulltext: 2307.01612 - PDF; Publication - PDF; External link: Previous draft version
7.
Search for leptoquark pair production decaying into $te^- \bar{t}e^+$ or $t\mu ^- \bar{t}\mu ^+$ in multi-lepton final states in pp collisions at $\sqrt{s} = 13\,\textrm{TeV}$ with the ATLAS detector / ATLAS Collaboration
A search for leptoquark pair production decaying into $te^- \bar{t}e^+$ or $t\mu^- \bar{t}\mu^+$ in final states with multiple leptons is presented. The search is based on a dataset of $pp$ collisions at $\sqrt{s}$=13 TeV recorded with the ATLAS detector during Run 2 of the Large Hadron Collider, corresponding to an integrated luminosity of 139 fb$^{-1}$. [...]
arXiv:2306.17642; CERN-EP-2023-087.- Geneva : CERN, 2024-08-14 - 61 p. - Published in : Eur. Phys. J. C 84 (2024) 818 Fulltext: 2306.17642 - PDF; document - PDF; External link: Previous draft version
8.
Fast b-tagging at the high-level trigger of the ATLAS experiment in LHC Run 3 / ATLAS Collaboration
The ATLAS experiment relies on real-time hadronic jet reconstruction and $b$-tagging to record fully hadronic events containing $b$-jets. These algorithms require track reconstruction, which is computationally expensive and could overwhelm the high-level-trigger farm, even at the reduced event rate that passes the ATLAS first stage hardware-based trigger. [...]
arXiv:2306.09738; CERN-EP-2023-111.- 2023-11-10 - 37 p. - Published in : JINST 18 (2023) P11006 Fulltext: 2306.09738 - PDF; document - PDF;
9.
Search for dark photons in rare $Z$ boson decays with the ATLAS detector / ATLAS Collaboration
A search for events with a dark photon produced in association with a dark Higgs boson via rare decays of the Standard Model $Z$ boson is presented, using 139 fb$^{-1}$ of $\sqrt{s} = 13$ TeV proton-proton collision data recorded by the ATLAS detector at the Large Hadron Collider. The dark Higgs boson decays into a pair of dark photons, and at least two of the three dark photons must each decay into a pair of electrons or muons, resulting in at least two same-flavor opposite-charge lepton pairs in the final state. [...]
arXiv:2306.07413; CERN-EP-2023-107.- Geneva : CERN, 2023-12-18 - 23 p. - Published in : Phys. Rev. Lett. 131 (2023) 251801 Fulltext: 2306.07413 - PDF; ATLAS-CONF-2023-016 - PDF; Publication - PDF; External link: Previous draft version
10.
Observation of <math display="inline"><mi>W</mi><mi>Z</mi><mi>γ</mi></math> Production in <math display="inline"><mi>p</mi><mi>p</mi></math> Collisions at <math display="inline"><msqrt><mi>s</mi></msqrt><mo>=</mo><mn>13</mn><mtext> </mtext><mtext> </mtext><mi>TeV</mi></math> with the ATLAS Detector / ATLAS Collaboration
This Letter reports the observation of $WZ\gamma$ production and a measurement of its cross-section using $140.1 \pm 1.2~\textrm{fb}^{-1}$ of proton-proton collision data recorded at a center-of-mass energy of 13 TeV by the ATLAS detector at the Large Hadron Collider. The $WZ\gamma$ production cross-section, with both the $W$ and $Z$ bosons decaying leptonically, $pp \rightarrow WZ\gamma \rightarrow {\ell'}^{\pm}\nu\ell^{+}\ell^{-}\gamma$ ($\ell^{(')} = e, \mu$), is measured in a fiducial phase-space region defined such that the leptons and the photon have high transverse momentum and the photon is isolated. [...]
arXiv:2305.16994; CERN-EP-2023-095.- Geneva : CERN, 2024-01-12 - 21 p. - Published in : Phys. Rev. Lett. 132 (2024) 021802 Fulltext: 2305.16994 - PDF; Publication - PDF; External link: Previous draft version

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